random top end rattle on my 16v gti ?????

[blackgti]

hello just picked up another project gti sounds fine on tickover but when rev a bit get a sort of random rattle almost as if its pinking or something ? ive got no idea its not a constant noise anyone got any ideas what it is and how to cure cheers peter its a late 96 gti 2ltr 16v cheers help !!!!

[blackgti]

noticed my abs light doesnt come on with ignition can this cause this if unplugged if so where would it have been unplugged cheers peter

[oliver07]

cam wear or worn valve abs should have no effect on top of engine.

[blackgti]

cheers thats what i thought at first but seems to only happen from 2 -3k but only sometimes seems bit worse under load but not at high revs peter

[Christo77]

Not sure what your mileage is...I had something very similar with a Mk2 16v i owned.. top end rattle would come and go on tickover and you could hear it sometimes when pulling away..was the hydraulic cam followers, replaced them all and no more noises.

[Wayne]

Cam followers

[blackgti]

cheers everyone any idea of cost to replace the followers imagine belt needs doind as well cheers peter

[Rmachines]

Yea it sounds like the hydralic lifters to me,  they tend to rattle when they get old.   Mine were about £4 each, but i get them in sets of 8, there are 16 on yours,  so you need two sets.

Its not a particularly nasty job,  cambelt needs to come off, so stick a new one on with it, and a tenssioner,  madness not to unless you know its brand new!

 

[blackgti]

cheers everyone took to my mechanic he said engines had it ,he said it sounded more like piston slap oh well.but heres the good news put it ebay as is and a local mechanic has offered to fit a good engine for a very very good price so cant wait to get it back peter

[daimo]

jammy get