rabskyline

just as above...i have one scoob with a noise....i think its either a tappet or similar but on the off chance its sinister...how easy is it do do these shells and can it be done without a strip down and done from underneath via sump without removing engine etc....just a wee hypothetical situation...

Gear Head

iTrader: (2)

No, due to the layout of the flat 4 design.
The block has to be split i'm afraid.

rabskyline

ah bollocks....thanks chris... it may be still a dicky tappet as it seems to come noisier when cold but fades when warm and almost goes away altogether after ive leathered it somewhat ! and boosting 1.2 bar so going like stink....strange affair really... oh, its a twin turbo gtb incase anyone is wondering....stonking cars...

merlin24

iTrader: (1)

Try adding 1/2 litre of ATF (auto trans fluid) to your engine oil and run it for about 10 miles and then do a Oil and Filter change.
Quite often reduces the noise.

rabskyline

its just had a full service with molyslip added 25 miles after service..to no avail...sounds a bit like piston slap that wont go away.....does diminish a little but not totally...selling her cheap anyway to clear my feet of stock.....ho hum....thankw guys..

rabskyline

done more testing and it seems slappy till 3500 then it sounds worse and then quiet from 4100 onwards....really strange... seems to be better going up steep inclines....

Andy.F

You sure its not detting ? The twin turbos can play up on the small primary turbo but then run clean once the secondary one comes in.