On my 3rd DR and they have all been very quiet mechanically - until I fitted a High Compression piston. Clearance and everything is correct (fitted at 5,000 km's) but surprised how rattly it is. Noticeably more power and no oil consumption problems. Apparently not uncommon when fitting a forged piston.
Found the best solution is always
wear my earplugs, otherwise I started seeing dollar signs!
Cheers - Ron
Originally Posted by dobbo
Did anyone here, with a HC piston fitted notice an increase in engine noise...ie rattle ???
Any help would be appreciated,