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Water in oil (V7 II)

Printed From: guzziriders.org - moto guzzi forum
Category: Technical
Forum Name: Small Blocks
Forum Description: V35 up to V750 including B750, V7 etc.
URL: http://www.guzziriders.org/forum_posts.asp?TID=8633
Printed Date: 18 Nov 2018 at 13:02
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Topic: Water in oil (V7 II)
Posted By: motopete
Subject: Water in oil (V7 II)
Date Posted: 11 Apr 2018 at 19:04
Just changed the oil in my 2015 V7 II and a good 1/2 mug of clear water came out the rear drain plug Shocked

Anyone else noticed this on their bike?

I assume it's moisture from the warm breathers condensing in the cold airbox, draining back to the sump via the oil return pipe (or water/oil return pipe in my case).
Seems odd the water was so clear and only came out the rear drain, as if there's some sort of oil/water separator inside the sump?


Cheers, Pete.



Replies:
Posted By: oldlegs
Date Posted: 11 Apr 2018 at 20:22
Yes happened to me, I even took a sample back to the dealer who did the previous service thinking their engine oil storage was at fault. But it happened again after I had serviced my V711, the water only drains from the rear plug because that is the lowest and water is heavier than engine oil. I sometimes allow a dribble from the rear plug mid service mileage. Steve.

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Current: Beta Motard M4. Beta Motard tourer. Beta Super Motard. Beta Alp. Moto Guzzi V7 11 Stone.


Posted By: Brian UK
Date Posted: 11 Apr 2018 at 22:11
Don't forget it has been a very damp winter. High humidity in the atmosphere will only make this problem worse.

-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: Andyb
Date Posted: 12 Apr 2018 at 13:09
A classic problem of the oil simply not getting hot enough.  The solution is actually very simple - relocate to the South of France, Australia or somewhere else warm and dry!
Andyb


Posted By: motopete
Date Posted: 12 Apr 2018 at 18:51
I think the occasional dribble from the sump is a good idea Steve, I'll start doing that between services.

BTW, I'd love to live somewhere much warmer!




Posted By: johnno
Date Posted: 12 Apr 2018 at 20:05
Originally posted by motopete motopete wrote:

I think the occasional dribble from the sump is a good idea Steve, I'll start doing that between services.

BTW, I'd love to live somewhere much warmer!


Steve very good idea Thanks

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GSXR1100 L ,Moto Guzzi .750xpa,.1100 sport,1100 sport corsa rider


Posted By: Mike H
Date Posted: 13 Apr 2018 at 19:55
I can remember changing the primary drive oil in my Triumph T140 every Saturday in Winter time Shocked

Always drained out looking exactly like evaporated milk...




-------------
"Chicken nuggets don't dance on a Tuesday."


Posted By: stokes1971
Date Posted: 16 Apr 2018 at 16:34
Not sure if this applies wherever you live,but I dont ride pretty much all winter.If I run the bike during storage and dont run it hot enough I get condensation in the oil.


Posted By: BobV7
Date Posted: 16 Apr 2018 at 17:39
Checked the V7 this morning. Nothing.

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V7 Classic Black and gold is the best colour


Posted By: motopete
Date Posted: 16 Apr 2018 at 20:06
Originally posted by stokes1971 stokes1971 wrote:

Not sure if this applies wherever you live,but I dont ride pretty much all winter.If I run the bike during storage and dont run it hot enough I get condensation in the oil.

I've not run it all winter, just maintained the battery. The weather was pretty cold when I last rode the bike in November so maybe the oil just doesn't get hot enough in cold weather?


Posted By: rapheal
Date Posted: 18 Apr 2018 at 21:28
Originally posted by oldlegs oldlegs wrote:

Yes happened to me, I even took a sample back to the dealer who did the previous service thinking their engine oil storage was at fault. But it happened again after I had serviced my V711, the water only drains from the rear plug because that is the lowest and water is heavier than engine oil. I sometimes allow a dribble from the rear plug mid service mileage. Steve.

Do you do short journeys and are light on the throttle ?
not had the problem with my breva ( similar engine) but I only do long runs and work it hard
odd really as an air cooled machine should warm up quicker


Posted By: motopete
Date Posted: 19 Apr 2018 at 13:00
I never do short journeys, that's what the pushbike's for Wink 

I wouldn't say I ride it hard, but I don't potter either. My run to work is 15 miles, and trips out tend to be much longer, but I remember the air temp gauge displaying 2degC near the end of last year; if  that doesn't over-cool the engine at 60mph it certainly over-cools the rider!  Brrrr...



Posted By: johnno
Date Posted: 19 Apr 2018 at 17:54
Pete you ride your bike sound , distance and speed wise these small blocks can collect water , my 750 as a few times , your problem is you had a few months of being a wimp and not riding lolThumbs Up

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GSXR1100 L ,Moto Guzzi .750xpa,.1100 sport,1100 sport corsa rider


Posted By: V7Chris
Date Posted: 19 Apr 2018 at 18:46
Bugger it! I was trying to ignore this thread. I will have to go and check mine now - I was in blissful ignorance before. I do make sure I go out and put a few miles on no matter what the weather at least every week or two except when I am overseas. On the other hand, it is due an annual service next month, reckon I should be safe enough till then?


Posted By: oldlegs
Date Posted: 19 Apr 2018 at 21:18
Hi Chris, it only takes a few minutes to allow a dribble from the rear plug, it's win win, if no water comes out it makes you feel good, if you get rid of any water in the sump you've got rid of the worry. Steve.

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Current: Beta Motard M4. Beta Motard tourer. Beta Super Motard. Beta Alp. Moto Guzzi V7 11 Stone.


Posted By: V7Chris
Date Posted: 19 Apr 2018 at 21:36
Will do Steve, I have a bit of fettling to do tomorrow anyway.👍


Posted By: Dave P.
Date Posted: 20 Apr 2018 at 00:01
Cold damp weather & short rides often add up to water in the oil.RE Bullets are renowned for it.The "Mayonnaise" subject has appeared often on the Hitchcock's forum.The only time my bullet is totally mayo-free is when riding in Southern Europe in the summer.

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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.


Posted By: V7Chris
Date Posted: 20 Apr 2018 at 07:28
I have to say that I have never seen any of the dreaded mayo when I dip checked the oil thankfully.


Posted By: Brian UK
Date Posted: 20 Apr 2018 at 08:14
You're not likely to see it on the dip stick if that's what you mean.
 
Favourite place to find mayo is inside the valve cover.


-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: V7Chris
Date Posted: 20 Apr 2018 at 23:02
Good call Steve, must have drained about 30 or 40 ml out before it became 'oily'.
Shocked


Posted By: motopete
Date Posted: 21 Apr 2018 at 17:05
Originally posted by johnno johnno wrote:

Pete you ride your bike sound , distance and speed wise these small blocks can collect water , my 750 as a few times , your problem is you had a few months of being a wimp and not riding lolThumbs Up

Must be old age creeping up Johnno Wink  When I first had a bike I rode every single day of the year, but you're right - machines don't like standing idle for long periods, all sorts of weird and wonderful faults can develop.

Forgot to mention the rocker covers and oil filter plate were full of mayo too but the breather pipes were clear.
BTW Chris, I've never seen any mayo on the dipstick.


Posted By: motopete
Date Posted: 16 Jun 2018 at 19:28
We can't say the weather's been cold and damp lately can we? And the V7 certainly hasn't been standing idle.  So today I popped the rear sump plug out expecting to find clean oil, but instead a steady stream of clear water came out again... Only 2,000 miles since I last drained it.

The amount I removed was enough to drop the dipstick level from max to min, which probaly explains why the engine doesn't appear to use any oil, the level keeps getting topped-up with water!

Can't decide whether it's condensation dripping from the rocker covers  or moist breather fumes condensing in the airbox then draining back to the sump through the return pipe.

The RHS rocker cover had a light coating of mayo but the LHS was clear, but more worrying is when I last had the oil filter out there was thick mayo in there! So the oil pump is sucking up water and circulating a water/oil mix around the engine... All in all it's a pretty crap breather system Thumbs Down

I feel some mods coming on Wink




Posted By: johnno
Date Posted: 16 Jun 2018 at 21:14
interesting ?  I'm checking my small blocks Thumbs Up even in summer

-------------
GSXR1100 L ,Moto Guzzi .750xpa,.1100 sport,1100 sport corsa rider


Posted By: Brian UK
Date Posted: 16 Jun 2018 at 21:40
Interesting, because I don't remember having the same problem with the V50. And generally the small blocks run quite hot.

It was a wet spring though.


-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: Mike H
Date Posted: 16 Jun 2018 at 22:01
This sounds like rain / spray getting into the airbox and thence into the sump. Else that's a HELLUVA lot of condensation. Shocked





-------------
"Chicken nuggets don't dance on a Tuesday."


Posted By: Andyb
Date Posted: 17 Jun 2018 at 09:43
just checked my 2014 1TB stone - on the centresatnd overnight but the rear plug still looks the low point - no water.
12NM on the torque wrench for retightening feels very low, but I kept with that - will recheck incase it loosens
Andyb


Posted By: Brian UK
Date Posted: 17 Jun 2018 at 10:09
Don't forget that plug is threaded into cast aluminium, not the strongest material for threads.


-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: motopete
Date Posted: 17 Jun 2018 at 18:56
Originally posted by Andyb Andyb wrote:

12NM on the torque wrench for retightening feels very low, but I kept with that - will recheck incase it loosens
Andyb
Yep, that's what I thought Andy, but it's never loosened on me (unlike the heatshield screw that's now sitting somewhere along the A303...)

Today I've had various pipes off to check how this thing is plumbed. Together with the Guzzi diagrams  it appears oil seperation is done in the top tube of the frame.
The 2 rocker pipes feed in and 2 pipes come out: One's the oil return to the sump, the other is the breather pipe to the airbox. On the front of the airbox is a foam filter, it has 3 stubs on the inlet side but only 1 is used (the other 2 are blanked off). After the foam filter there's a single hole into the airbox.

Now I've got 2 theories:
1) The oi seperator isn't very good and allows condensation to form in the top tube, this water then runs back to the sump through the oil return pipe.
QUESTION: What sort of oil seperator do older small blocks use?

2) There's a blockage somewhere in the system preventing the crankcase breathing freely, so moist air gets trapped in the crankcase and condenses every time the engine cools down. Which is a lot of times if you use the bike daily.
QUESTION: Do older small blocks have this foam filter in the path of the crankcase breather?

I'm inclined to think the foam is too restrictive since it's saturated in oil, and therefore stops the crankcase breathing freely. I've blown through the inlet stub on the airbox and it's not totally blocked but it isn't totally clear either.
It's not designed for easy servicing either, to access it you'd have to split the airbox which is no mean feat in-situ.

Inside the airbox was just the usual oily mist, nothing to worry about after 2000-odd miles.

The last engine I had that was this bad for crankcase ventilation was a 1974 Hillman Avenger... That made mayo quicker than Heinz.
Pete.


Posted By: Adam
Date Posted: 17 Jun 2018 at 19:11
I've no advice on your problem, but shared the Avenger experience, including finding that they jumped out of gear at critical moments😮


Posted By: motopete
Date Posted: 17 Jun 2018 at 19:20
Ah, 'happy' memories...  We were doing a treasure hunt (remember those?) and it jammed in 1st, had to drive the 30-odd miles home like that.  Then off to the scrappy for a gearbox that cost (I think) around a tenner.


Posted By: Brian UK
Date Posted: 17 Jun 2018 at 22:02
That oil seperation system has been used on most of the recent models, well since the lat 80s anyway. Never had oil in the sump on my SPIII.

Earlier small blocks had the oil seperation done as a part of the air box.
All the airboxes/filters on the small blocks have been a pain to service.


-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: Andyb
Date Posted: 17 Jun 2018 at 22:43
Have a look at PCV ENHANCERS on ebay or google - these are simple containers to renove the water vapour
Andyb


Posted By: c13pep
Date Posted: 18 Jun 2018 at 08:04
[QUOTE=motopete] We can't say the weather's been cold and damp lately can we? And the V7 certainly hasn't been standing idle.  So today I popped the rear sump plug out expecting to find clean oil, but instead a steady stream of clear water came out again... Only 2,000 miles since I last drained it.

The amount I removed was enough to drop the dipstick level from max to min, which probaly explains why the engine doesn't appear to use any oil, the level keeps getting topped-up with water


The worry would be not only the amount of water but where has the oil gone!
CHRIS

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you can`t have any fun in a straight line

Monza project
BMW R1150RT


Posted By: Mike H
Date Posted: 18 Jun 2018 at 10:22
Still don't believe that that much water can be got from just "condensation".

Where is the intake for the air filter?



-------------
"Chicken nuggets don't dance on a Tuesday."


Posted By: V7Chris
Date Posted: 18 Jun 2018 at 20:20
The last engine I had that was this bad for crankcase ventilation was a 1974 Hillman Avenger... That made mayo quicker than Heinz.
Pete.

Hoho. Yes but Hillman had overcome that problem by 1978, because all the 1974 Avengers were in the scrapyard by then! Car makers in the 70s are a bit like surgeons, they buried their mistakes...


Posted By: motopete
Date Posted: 20 Jun 2018 at 20:27
I reckon I've sussed it, at least in theory. I need to try a few things to prove it:
  1. The only outlet for crankcase fumes/mositure is the breather pipe into the airbox. Every other part of the breather system is connected to the crankcase and therefore sealed.

  2. The breather entering the airbox has to pass through a foam filter on the front of the airbox.
    When the bike was new the foam was clean and offered litle restriction, the crankcase breathed easily and less condensation was formed.

  3. As the miles go by the foam becomes saturated from oil mist and becomes more restrictive. The crankcase can't breathe easily so moist air becomes trapped inside the engine and condenses back to water as the engine cools.  Every hot - cold cycle will create a bit more water.
    It's obvious my foam is wet because a small amount of liquid oil enters the airbox, whereas when the bike was new it didn't.

  4. Regular replacement of the foam filter would probably restore performance of the breathing system, but in fact it's a pain in the a**e to split the airbox and remove the filter so I doubt anyone does this.
    Every other breather system I've seen with a foam filter requires the foam to be replaced or at least cleaned regularly.

  5. Interestingly the foam filter is a stock item at Fowlers and is also cheap. I wonder if they sell many/any?

  6. Euro III only requires the bike to pass the emissions regs in as-new condition; there's no durabilty requirement so performance after (say) 3 years isn't a consideration.

  7. The usual "is it me?" did occur, but a quick search around the various Guzzi sites shows this is a very common problem on modern V7's. It's effectively "by design" if the foam isn't kept clean.
My favourite "solution" at the mo is to run the  drain pipe from the oil seperator to atmosphere and catch the drips in a small catch bottle. I'm thinking this would provide another route for the crakcase to breathe, considering the normal path via the airbox is (I think) clogged, and it would stop any condensed water entering the sump.

What do folks think? Sound plausible??
Apologies for the long ramblings of a madman... Pete.


Posted By: Mike H
Date Posted: 20 Jun 2018 at 20:37
Interesting - just a thought, my LM's PO had put a catch bottle on (a small 250ml used plastic oil bottle on a bracket) however the "chuffing" from the vent hose simply blew the contents out everywhere. Was never any drips in it so ended up taking it off, the oil was being spread on the underneath of the gearbox already anyway so no difference.





-------------
"Chicken nuggets don't dance on a Tuesday."


Posted By: Andyb
Date Posted: 20 Jun 2018 at 22:14
Why not remove the foam?  What function does it have?
AndyB


Posted By: motopete
Date Posted: 21 Jun 2018 at 13:00
I can only think of two reasons for the foam:

1.       Trap any particles in the breather system and stop them being drawn into the engine. Having said that the breather pipe feeding the airbox is nice and clean, just a bit oily as you’d expect.

2.       Flame trap in case the engine spits back through the inlet valve, to prevent ignition of fumes in the breather system.

On balance I’m tempted to remove the foam. It wouldn’t be too difficult to add an external filter in-line with the breather pipe, at least that’d be easy to service.

Doesn't look at all straightforward to get the airbox out or apart though...

 

The weird thing is, despite all these niggles and imperfections I still love the bike! It has real character.



Posted By: Adam
Date Posted: 21 Jun 2018 at 17:58
The worry got to me, so I drained a bit of oil from the sump,
..... aaaaand relax, no water. I guess your model might have different plumbing to my 2009. I have used the bike over winter to keep the battery etc. healthy. Hope you find a solution. 


Posted By: motopete
Date Posted: 21 Jun 2018 at 21:43
Googling around Adam I get the impression the problem is far more prevalent on later single TB V7's.  Yours being 2009 will be twin TB I guess.

Not sure how the new V7 III fares?  I know they modified the breather set up compared to V7 II.


Posted By: motopete
Date Posted: 23 Aug 2018 at 19:37
Thought I'd share an update on my nice clean oil, with not a trace of oil in the sump after 2 months continuous riding Smile

 I've disconnected the return pipe from the oil separater and fed it into a catch tube (length of copper tube with a drain at one end). Result Thumbs Up 

The sump's remained squeaky clean, so have the rocker covers. 
The catch tube collects a small amount of water plus a bit of oil each week (more water than oil). Over the last 2 months I've drained around 100cc of water, I know because I've been saving every drop.

Now my engine actually uses some oil - as I'd expect - previously it never seemed to use much oil because the crappy breather system was dumping enough water into the sump to offset the oil burnt by the engine.

Finally, I see the oil return pipe to the sump has been deleted on the V7 III.... I wonder why? Ermm




Posted By: oldlegs
Date Posted: 23 Aug 2018 at 22:28
With not a trace of oil in the sump? only kidding we know what you mean.
Have you blocked the other end where the return pipe used to fit. Any chance of a pic. Steve.



-------------
Current: Beta Motard M4. Beta Motard tourer. Beta Super Motard. Beta Alp. Moto Guzzi V7 11 Stone.


Posted By: V7Chris
Date Posted: 24 Aug 2018 at 07:42
Originally posted by oldlegs oldlegs wrote:

With not a trace of oil in the sump? only kidding we know what you mean.
Have you blocked the other end where the return pipe used to fit. Any chance of a pic. Steve.

+1 pleaseSmile


Posted By: Brian UK
Date Posted: 24 Aug 2018 at 10:09
It's fairly clear that the oil separator in the frame tube doen't get hot enough to stop the water vapour  condensing, so it can end up in the sump.

The older V50 etc. used a plastic separator which was part of the air box, so probably didn't work as a condensor.


-------------
Brian.

Better 5 minutes late in this world than years early in the next.


Posted By: motopete
Date Posted: 24 Aug 2018 at 17:02
Doh!  Funny how typo's can stare you in the face...Clown

Getting a photo on the bike's a bit tricky but I've attached a pic of my "collector tube" gadget (nothing more than standard plumbing fittings, sprayed black).

The contraption is (for now) tie wrapped to the LHS lower frame rail under the starter.
The oil separator pipe feeds into 'INLET'.
The one-way valve is still connected to the sump, but it's plugged to prevent any leak back.

Nothing comes out the 'VENT' port, so I assume the oil separator is vented OK by the airbox breather. Certainly the airbox breather inlet seems clear if I blow though it.

 I undo the drain every week or 2, usually collecting a dribble of water or water/oil emulsion.
If my sump level's at max it does collect a bit more oil, but that stops once the sump's down to about 3/4 max (where I normally run it).




HTH, Pete


Posted By: jefrs
Date Posted: 27 Aug 2018 at 11:29
Originally posted by Dave P. Dave P. wrote:

Cold damp weather & short rides often add up to water in the oil.RE Bullets are renowned for it.The "Mayonnaise" subject has appeared often on the Hitchcock's forum.The only time my bullet is totally mayo-free is when riding in Southern Europe in the summer.
  

The Enfield EFI engine has a peculiar system of weirs and dams inside the engine and a very high pump rate of oil. It has an oil catch pot and return inside the engine case so the breather is just a pipe to the airbox.  The older Enfield engines are more prone to breather problems and can have some real Heath Robinson solutions.

This is perhaps not the place to discuss the Enfield predilection for making mayonnaise but it has been done to death on the REOC/Hitchcocks forum, and may shed some light on the italian mayo.

The main source of water in the engine is as water vapour drawn in through the breather with air. Air has to go in and out otherwise we'd get a vacuum inside the case.
The breather must be allowed to eject water vapour, trapping it and draining it back into the engine as liquid is not a good plan.
Detergents in the oil will trap and emulsify water, that is its job and difficult to boil out once it has formed; this is the mayonnaise.
The oil must be allowed to get hot enough to vaporise water condensation. The V7.ii has a pair of 75kW knee warmers to adequately do the job even in the coldest weather. The engine produces about 50hp as mechanical work but wastes the rest, about 80%, as heat, 150kW waste as heat. That's a lot of heat, kitchen ovens run to about 5kW.
So running the bike up at idle 'in winter' is not a good idea, it needs a good run.

I ride the bikes all year, true not as much in winter, but I don't get mayo. We often get very good riding days in winter, bright and sunny if a bit nippy.


Posted By: Adam
Date Posted: 27 Aug 2018 at 18:42
My trials bike gearbox oil can turn milky grey with condensation within one day if there's streams on the course. Especially in winter with a hot engine being plunged into icey water, I'm surprised it doesn't shatter. 


Posted By: jefrs
Date Posted: 27 Aug 2018 at 23:25
I used to marshal trials. They seemed to spend more time immersed in the water than out of it. I remember one competitor come up saying, "I've lost my bike", he'd dropped it in a pond and couldn't find it.


Posted By: V7Chris
Date Posted: 30 Sep 2018 at 07:33
I did an oil and filter change a few weeks ago using the recommended ENI oil. This replaced the red stuff that the dealer had used at the second annual service. Previously, I too had the water dribble from the rear sump plug. Since the oil change, I haven't had an opportunity to do so many longer runs on the V7ii (running In another machine, s o a few 10 mile trips to keep everything running and one longer run). Carrying out a few checks in preparation for today's DGR at Chester, yesterday I cracked open the sump plug expecting to get the usual dribble of water. Not a drop. Just thick golden oil. 
Could this be partly the oil used I wonder?
Chris


Posted By: Andyb
Date Posted: 30 Sep 2018 at 09:43
Could be the warm dry weather has helped?
Will be interesting to know if your oil stays dry longer term - mine was when I checked it and I am using ENI 10/60
Andyb


Posted By: rapheal
Date Posted: 30 Sep 2018 at 11:42
ride it like you stole it !!


Posted By: motopete
Date Posted: 01 Oct 2018 at 20:09
Tried that, doesn't work! Big smile


Posted By: Andymac
Date Posted: 08 Nov 2018 at 00:06
I followed this thread with interest I have had my V7ii for over a year now, it,s done 17800 miles, got it dealer serviced at 10700 miles, at about 12000 miles it threw oil out Gearbox breather, no reason found yet !! I have just checked and adjusted tappets , found rocker covers full of pink Mayo ! drained engine oil about a cup full of water/mayo came out rear sump drain !! removed air filter ,air box had half a cup of water/oil/mayo in it !! cleaned everything up and investigated breather plumbing and as stated in this thread it all runs back to air box via the foam filter at bottom of it, which is almost impossible to get to without taking half bike apart, so cleaned out pipe work as best I could and reassembled it ,with view to fitting breather with catch tank at later date? Also found that TB not actually connected to Air Box ,so must have been drawing in unfiltered air through gap !! so after some levering and jiggleing got the connecting rubber in place might help give smoother running ?? This bit just for any one who dosen't know to disconnect the fuel pipe from tank you have to push the hose toward the coupling as you push it off ,which means you have to have a hand in each end of tank tunnel and work blind (a lot of fun !!!!!) SO time to fire it up, pressed starter , fuel pump whined engine started let it tick over to get new oil round ,then giving it a bit more gas and held it at 3000revs and it gave a bit of a stutter then picked up again let go back to idle then back to 3 grand it did it again so switched of and restarted and problem seems to have cleared ( has the ECU readjusted its self due to intake difference ???? ) So that is my tale of a simple service ! I seem to have encountered most of the issues in this thread ,which was of great assistance . Any more thoughts on these issues would be most welcome , sorry about length of post!!


-------------
Optimism is a terrible Affliction


Posted By: Andyb
Date Posted: 08 Nov 2018 at 17:52
The stutter might be air in the fuel line clearing out?

Sounds like you do a lot of miles yet still get this water in oil problem, which is strange.

I don’t know if the plumbing on my 1TB MkI is different to the MkII but I don’t get contaminated oil.

AndyB



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