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V7 Sport Refurb

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Glawster View Drop Down
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    Posted: 26 Oct 2017 at 19:58
Last winter I rebuilt my tatty T3 Cali and I got a tremendous amount of help and advice from members of this forum.  This year I'm doing a light refreshment of my recently acquired V7 Sport.  Please indulge me by reading my posts on this thread and offering your advice and opinion.  It really is a big help to me, as although this year I'm much better informed and prepared on account of rebuilding the Cali and sourcing a copy of Guzziology, but knowing twice nothing still amounts to knowing not much!

A few points so far...

Rear wheel has gone to Friction Materials in Keynsham for brake relining.  I had the front brake done as soon as I bought the bike which improved the braking performance no end.  So now I'll get the back one done with the same lining material - Ferodo D3920.

Rear shocks are the lovely original Konis.  One is leaking badly and as I'd like to keep them if possible I took them to the Ikon distributor in Warwick.  They're unsure if they can get the seals, but are contacting HQ in Australia for advice.  Let's see what they come up with.

The UJ has significant play in one of the crosses, and the fit in the swing arm bearing is loose.  Is there anyone recommended for rebuilding UJs or is it necessary to buy a new one?  It's the reversible type so I'm thinking if I could get the crosses rebuild I could maybe reverse the direction of the UJ to get a better fit in the swing arm bearing?  Or is this thinking just cobblers?  Are all replacement UJs the same or is there a preferred supplier?

Just looking at the back of the gearbox....I have no idea what this tube bolted to the gearbox is for.  What purpose does it serve?  I don't see it in the parts list!  Please enlighten me.

DSC_3697 by Derek Wardell, on Flickr

What really impresses me about the V7 Sport compared to the T3 is the build quality.  For example, a beautifully rose jointed gear change linkage on the Sport compared to a bent rod sticking through a plate on the T3.  And how about this cross over link pipe.  Under the engine so you never see it...but what a thing of beauty!

DSC_3695 by Derek Wardell, on Flickr

All feedback appreciated.  More questions to follow.
Cheers,
Derek
1979 Guzzi T3 California
1973 Guzzi V7 Sport
2015 Triumph Tiger 800
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ranton_rambler View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ranton_rambler Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 20:11
You can rebuild the UJ easily enough. There's another thread on here somewhere with some details. There are a few different sizes so make sure you get the right ones.
Is the tube under the gearbox to allow for swapping foot controls over from left to right? Loops have that facility.
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 20:12
The tube on the back of the gearbox Derek is I think as with the Loops to accommodate a cross-over shaft so that the foot controls can be reversed if so desired.I did this with the V7 Special when I first got it.

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1971 V7 Special. 1972 850GT.
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 20:56


Is for a shaft to go through so can have gear pedal on the right.


"Chicken nuggets don't dance on a Tuesday."
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v7john View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 21:29
Have fun! As you say, these bikes were very well put together. Guzzi pretty much sourced the best equipment then available (apart from the electrical switches) which is why they were so expensive. They also decided it would be good to chrome plate various nuts and bolts which didn’t go so well. I’ve rebuilt my V7Sport twice in the time I’ve had it so might be able to help as you go along.

The original Koni shocks should be rebuildable. It must be about 5 years since I bought a new-old-stock pair. Before they were sold they were rebuilt as some of the seals might have failed just due to age. If you can’t get them done, I’ll find you the contact details for Konimon in the USA who sold me mine. He would know what’s possible.

I’ve not tried rebuilding a UJ so can’t help much there. However the UJ has always spun in that support bearing eventually and doesn’t seem to really matter that much. I understand the other end of some UJs can be machined to size to give a second go. I just try to fix it with some sort of Loctite bearing goo. Sometimes it works and sometimes it doesn’t.

Dave’s right. The redundant tube on the rear gearbox cover was for a gearchange cross-over shaft on some loopframe bikes. Later Tonti bikes were missing this casting. It wasn't used to switch gearchange sides on the sport though. There was another bracket arrangement to do this (for the US market?).
1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

Read my blog https://racingrhino.wordpress.com/
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Glawster View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 21:54
Thanks Guys,
John, I’m glad I’ve caught your attention. I’m just working my way through your excellent blog and I’m really enjoying it. I’ll let you know the outcome from Ikon UK and if they can’t help I’d like to take up the contact in the USA. It would be a shame to lose the original Koni shocks.
Interesting to hear about the tube for the crossover gearchange. I don’t know why it’s fitted to the V7 Sport though as it already has a neat mounting system (illustration in John’s blog) which I would have thought would easily accomodate switching sides.
More dismantling over the next days!
1979 Guzzi T3 California
1973 Guzzi V7 Sport
2015 Triumph Tiger 800
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v7john View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2017 at 22:23
Glad you like the blog and I hope it's useful. I've not added to it lately due to a fairly hectic non-bike summer where I've been away a lot on family business. I even had to SORN one of my bikes because I didn't have time to take it for an MOT and the tax ran out. It looks like I might be undertaking the cosmetic rebuild of a Mk 1 LeMans over the winter for a friend which could give me some new material.
1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

Read my blog https://racingrhino.wordpress.com/
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Glawster View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2017 at 18:13
A couple more questions:
The instrument panel warning lights need replacement - just the lens, bezel and the plastic tube that the bulb sits in.  The bulb holders are OK.  I'm assuming these are the same as on other Guzzis of the period.  Anyone have a idea where I might source them?  They don't seem to be on Stein Dinse's stock.

DSC_3712 by Derek Wardell, on Flickr

And a question more specific to V7 John.  I saw that you had your headlight shell re-chromed.  Is it necessary to split the shell and the mounting points?  They are rivetted together with what looks like aluminium rivets.  Can the plater do the job without dismantling?  I'm not sure how I'd get them joined back together if I split them!

DSC_3713 by Derek Wardell, on Flickr
1979 Guzzi T3 California
1973 Guzzi V7 Sport
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tonti View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tonti Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2017 at 22:28
I have  2 new sets of koni seals along with some other new koni spares which are now surplus to my requirements.If you don't get anywhere i will sell them .I am working on a advert to try and clear some other tonti parts that i'm never going to use.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ipaulog Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2017 at 23:59
Hello Derek
Nice to have met you a few months ago. I also had a chat with John at the Marches Italian bike meet up in the Shropshire hills - that's my GTS in your photos of the event in June 2016. Excellent blog that I will be revisiting.
I have started to dismantle my well worn V7 Sport for a thorough refurbishment (as soon as I can park the T3 in a satisfactory state). After deliberating I have decided to leave the original paintwork alone with just a clean up and go for a mechanical overhaul to the best of my ability.
I will be happy to gain from your experience as well as share any info I gain along the way.
I am not going backwards in time so will be retaining the twin discs and PHF 30's that have been on the bike for most of its life.
If anyone knows where I can get a pair of exhaust brackets that clamp the headers to the frame I'd be grateful.
Paul.
 
"The difference between stupidity and genius is that genius has its limits." Albert Einstein

                         
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Glawster View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2017 at 09:47
Hi Paul,
Good to hear that you are tacking your V7 Sport also.  Please use this thread to share ideas / questions etc.
The exhaust clamps you mention are available from Stein Dinse

Tonti - If Ikon don't have the parts I'd be happy to buy the seals from you.  Will update next week.

Cheers,
Derek
1979 Guzzi T3 California
1973 Guzzi V7 Sport
2015 Triumph Tiger 800
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Post Options Post Options   Thanks (0) Thanks(0)   Quote v7john Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2017 at 10:37
I think original type warning lights are all long gone. There are very similar types for old cars around but they're not quite the same.

I didn't actually have the chrome headlamp shell redone. I just had the front rim rechromed. The platers did this without removing rivets but it came apart later because one of the rivets had been polished away. I'd be inclined to get the advice of the platers because those headlamps are a ridiculous price if you can even find one.

I got a pair of those stainless exhaust to frame clamps from Stein Dinse but had to adjust them to make them fit.


1972 V7Sport "The Racing Rhino".
1972 V7 700cc "The Fire Bike".

Read my blog https://racingrhino.wordpress.com/
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Barry View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Barry Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2017 at 10:43
Lights:  http://www.tlm.nl/webshop/en/warning-light-green-v7-sport-147549010000-moto-guzzi

they list the green, orange, but red apparently "out of stock", harpers (US) also list them, but no indication of stock.
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Glawster View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2017 at 12:33
Thanks Barry.  Think I'll try Harpers (a new supplier to me) as they are much cheaper.
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2015 Triumph Tiger 800
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Glawster View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 01 Nov 2017 at 16:56
Tonti,
I send you a pm regarding the koni seals.  Please have a look in your mailbox!
1979 Guzzi T3 California
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