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V50 3 fork oil

Printed From: guzziriders.org - moto guzzi forum
Category: Technical
Forum Name: Small Blocks
Forum Description: V35 up to V750 including Breva750, V7, V9 and new V85.
URL: http://www.guzziriders.org/forum_posts.asp?TID=10613
Printed Date: 28 Mar 2024 at 13:49
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com


Topic: V50 3 fork oil
Posted By: waynedear
Subject: V50 3 fork oil
Date Posted: 19 Oct 2019 at 13:48
Sorry, I have done many searches and come up with many answers...
What is the quantity per leg for V50iii fork oil ?.
I have found answers from 61ml >140ml so confusion reigns.
I am ok with the ‘what’ and the ‘how to’ it’s just the HOW MUCH



Replies:
Posted By: c13pep
Date Posted: 19 Oct 2019 at 14:38
My workshop manual stipulates 0.07 l ATF per leg for the V50/3 but it depends on whether you have the original oil/pneumatic forks.
However the full wording from the reassembly chapter says
Introduce in the hydraulic dampers 0.70cc of ATF
and 0.60cc in oil pneumatic dampers
and 0.90cc in oil pneumatic dampers of mod V35C, V50C, V65 and V65SP
This is an exact quote from my manual
I have always had oil pneumatics on my three V50/3s so 60cc is what I used and played around with the air pressure up to 3Kg/sqcm + or - 1 because I never had pneumatic on the rear.
Whatever you do they still want to shake your teeth loose


CHRIS

-------------
you can`t have any fun in a straight line

Monza
Honda CB77 project



Posted By: waynedear
Date Posted: 19 Oct 2019 at 17:07
Originally posted by c13pep c13pep wrote:

My workshop manual stipulates 0.07 l ATF per leg for the V50/3 but it depends on whether you have the original oil/pneumatic forks.
However the full wording from the reassembly chapter says
Introduce in the hydraulic dampers 0.70cc of ATF
and 0.60cc in oil pneumatic dampers
and 0.90cc in oil pneumatic dampers of mod V35C, V50C, V65 and V65SP
This is an exact quote from my manual
I have always had oil pneumatics on my three V50/3s so 60cc is what I used and played around with the air pressure up to 3Kg/sqcm + or - 1 because I never had pneumatic on the rear.
Whatever you do they still want to shake your teeth loose


CHRIS


Brilliant, cheers Chris, yup they are still original oil/pneumatic.
Just put the new seals in 5 minutes ago, even found my bottle of ATF


Posted By: Brian UK
Date Posted: 19 Oct 2019 at 17:15
My workshop manual just says 60cc of ATF through the space existing between the inner diameter of the fork arm and the shock absorber body.
This is for thee Monza/III. Oil pneumatic damper.

No alternative.

The earlier V50/II takes 70cc.


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

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


Posted By: waynedear
Date Posted: 19 Oct 2019 at 18:28
Originally posted by Brian UK Brian UK wrote:

My workshop manual just says 60cc of ATF through the space existing between the inner diameter of the fork arm and the shock absorber body.
This is for thee Monza/III. Oil pneumatic damper.

No alternative.

The earlier V50/II takes 70cc.



Reading about it, putting the fluid in that way seems a real faff, could I use a syringe and tube and just squeeze it through the bottom hole where the damper retaining bolt goes into ?


Posted By: Brian UK
Date Posted: 19 Oct 2019 at 21:51
Don't see why not, provided you don't ruin the location of that key.

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

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


Posted By: waynedear
Date Posted: 20 Oct 2019 at 00:03
Originally posted by Brian UK Brian UK wrote:

Don't see why not, provided you don't ruin the location of that key.


I am (famous last words) a wizz with a spanner


Posted By: Mike H
Date Posted: 21 Oct 2019 at 23:00
You then got to stop the oil running out while you put the bolt back in?

I tried squirting the ATF back up the bleed holes of my Spada, because I couldn't get the caps off. Turns out, you still got to get the caps off to let the air in to let the old oil run out. You guessed it mine hadn't, so I ended up with too much oil in and solid hydrolocked forks. So still had to do it "the hard way". Sometimes there are no shortcuts.





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


Posted By: Brian UK
Date Posted: 22 Oct 2019 at 08:05
Originally posted by Mike H Mike H wrote:

You then got to stop the oil running out while you put the bolt back in?

Not if you do it with the fork leg off the bike and invert it.


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

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


Posted By: c13pep
Date Posted: 22 Oct 2019 at 11:08

Not if you do it with the fork leg off the bike and invert it.
[/QUOTE]

That`s the easy way to get the oil in but it`s such a faff dismantling the front end of the bike to get the legs out, luckily you may only do it once in your ownership.

CHRIS

-------------
you can`t have any fun in a straight line

Monza
Honda CB77 project



Posted By: waynedear
Date Posted: 22 Oct 2019 at 14:22
All done, new seals and gaiters, as the forks had been dismantled I just put them upside down in a workmate, atf went in a treat, new copper washers with a bit of sealant and we are sorted.


Posted By: c13pep
Date Posted: 22 Oct 2019 at 15:22
Result

CHRIS

-------------
you can`t have any fun in a straight line

Monza
Honda CB77 project




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