Possible Bent Valves

[jaggers12 2]

after changing the head gasket on my gti 6 ive developed quite a loud tapping. at first thought it was just sticking tappet but its been doing it for to long now.

ive just been lookinon the gti6 forum and they say you carnt turn the cam by hand as this can bend them but if the bottem end is timed up what can the valves hit as

i dont want to have this problem again.

thanks andy

[CosKev 16]

after changing the head gasket on my gti 6 ive developed quite a loud tapping. at first thought it was just sticking tappet but its been doing it for to long now.

ive just been lookinon the gti6 forum and they say you carnt turn the cam by hand as this can bend them but if the bottem end is timed up what can the valves hit as

i dont want to have this problem again.

thanks andy

 

 

Oh dear.

The valves will hit each other(inlet/exhaust) if you turn cams a full rotation,there pretty big.

There is a set position to fit the cams into the head,then you only turn them slightly to time them up.

Do not turn full rotation if you pass the timing mark on pulley.

[jaggers12 2]

darnnnn it thats gonna b expencive just what i needed. i dont know how much i turned them but i defefinatly did

[welshpug 1,657]

they're about £8 to £10 each.

[jaggers12 2]

but then theres 50ish for head set, need new carrier bolts, then a a skim as i diddnt do it last time as i know im close to its limit

[welshpug 1,657]

all you need is a gasket, you can re-use iron block bolts as long as they measure up within spec, especially given you've only just put it together.

 

carrier bolts?

[jaggers12 2]

yer sum of the cam carrirer bolts have seen alot better days (rounded a couple)

[CosKev 16]

yer sum of the cam carrirer bolts have seen alot better days (rounded a couple)

 

Can't remember the torque setting on those but its pretty low,should not be rounding them IMO

[Paul_13 212 1 Cars]

They're reknowned for rounding off, alot of companies renew them when rebuilding. 10nm from memory but seize up a bit from age.

 

Grade 8.8 or less from memory

Edited October 18, 2011 by Paul_13

[jaggers12 2]

cool thanks