[Mgs] More NJVGP news: clutch advice needed

J. F. Juhas james.f.juhas at snet.net
Sun May 23 20:53:26 MDT 2010


When Roger's engine grenaded at New Jersey, I drove past him but just 
barely.  My MGA is struggling with a slipping clutch, and it made my 
last few sessions challenging.  This is a kevlar solid (no springs) 
clutch with a competition-grade pressure plate.  I think oil past the 
rear scroll seal has contaminated it, even though conventional wisdom 
says that oil from there should get flung away from the clutch cover.  
Has anyone dealt with this?  I was able to salvage some sessions by 
spraying brake cleaner up the drain hole with the clutch out and 
spinning on the starter.  That and cooling off would run okay for about 
half a race session.  Engine is a slightly modified 1622 and 4.30:1 
rear.  My next plan is to go to a ceramic clutch material (have a source 
in NJ) and a PCV system to help keep the oil in the engine, although the 
oil consumption does not seem remarkable.  Suggestions welcome.

Jim Juhas
MGA 311


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