Brian Jackett Posted October 31, 2001 Share Posted October 31, 2001 My tappets are a little noisy at tick over but not cam worn noisy. I know the tappets on the SUpra and most other cars are oil filled so they are automatically adjusted. Changing the Oil usually helps but I did this two track sessions and 2,000 miles ago. I am using synthetic oil, perhapes it does need changing again! Any advise. regards Link to comment Share on other sites More sharing options...
Digsy Posted October 31, 2001 Share Posted October 31, 2001 As I found out to my eternal embarrasment after posting a description of the operation of hyrdaulic tappets - the tappets on the Supra are not oil-filled. There must be another form of lash-adjustment under the camcover. Possibly shims. Valve clearance adjustment on my old inline six BMW was only £50 at a main dealer. Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 31, 2001 Share Posted October 31, 2001 Supe engines do use shims for valve adjustments. Link to comment Share on other sites More sharing options...
Brian Jackett Posted October 31, 2001 Author Share Posted October 31, 2001 Oh, I assumed they were oil filled. Probably shims, I am sure someone will be able to tell me exactly how they work. Sounds like at least they are adjustable, and may explain them being noisy as I have never had them adjusted and have thrashed my car arround the race track 3 times now. regards Link to comment Share on other sites More sharing options...
Digsy Posted October 31, 2001 Share Posted October 31, 2001 If its shims then its a case of measuring the valve clearances and buying the appropriate shim kit to adjust it to the blueprint figure (whatever that is). Your local Toyota dealer should have the part numbers for the appropriate kits. Does anyone know if this forms part of any of the major services? Methinks not... Link to comment Share on other sites More sharing options...
Ian C Posted October 31, 2001 Share Posted October 31, 2001 Valve clearance check and adjustment is part of the big service, C on MkIIIs and D on MkIVs if I remember my anorak correctly. Er, I mean service schedule. -Ian Link to comment Share on other sites More sharing options...
Guest Ash Posted October 31, 2001 Share Posted October 31, 2001 I'd be surprised if the tapping noise you hear is due to excess valve clearance. Probably just the fuel injectors doing their thing. Yours, J Link to comment Share on other sites More sharing options...
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