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 Troubleshooting
 UNO TURBO PADDLE CLUTCH		  New Topic  Reply to Topic
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ekranoplan
Net Member

United Kingdom
2 Posts
Posted - 21 Jul 2010 :  23:48:54  Show Profile  Visit ekranoplan's Homepage  Reply with Quote
After changing gearbox last winter, had strange fluff coming out of gearbox bell housing and then slippage. Results here:

http://web.me.com/ekranoplan/FULVIACLUTCH/index.html

The entire friction plate (one side only) disintegrated.

Noticed the thrust bearing had two "spot" welds holding casing to base plate but both had broken.

Changed bearing from 1970s gearbox and installed new Uno Turbo Mk2 housing and racing 3 paddle plate.

Seemed fine but now new clutch is slipping under load (5th gear, at around 100 -120 km/h).

Cable also was renewed and is not overly tight.
Fulvia 1.6HF Racer

julian
Forum Admin

United Kingdom
2834 Posts
Posted - 22 Jul 2010 :  09:23:44  Show Profile  Visit julian's Homepage  Send julian an ICQ Message  Click to see julian's MSN Messenger address  Reply with Quote
If the new clutch is slipping it would suggest that the pressure from the cover plate is insufficient but these clutches are typically very aggressive and don't require as much and have very low levels of slip and virtually no transition from released to engaged. Attempting to slip the clutch will degrade the friction surfaces very quickly - which is fine for racing where slipping the clutch only tends to happen for very short periods of time but is very bad for road use where it happens regularly. I had a very similar clutch on my dallara and it lasted only 4 or 5 races and a couple of test sessions - not quite what I had expected but from then on I made sure I pushed the car around the paddock instead of trying to drive it!

A far safer bet is a high performance road clutch with organic friction material - these are much more tolerant of deliberate clutch slip and last much longer as a result but still allow for greater levels of torque delivery and rapid transition.

1998 Seicento 600M - extreme version
2000 Ford Explorer LPG'd up but well and truely f****d
1978 Replica Icsunonove w/Uno Turbo power (250bhp+ and 600kg)
2009 Abarth 500
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