Cams won't turn - HELP!

[K Simmonds]

I guess you could try that cap from your old head and see if the shaft rotates smoothly then cross your fingers...I have seen this work but on crappy old diesel engines.

[hunker7]

I'll update this tomorrow. I'll take it slow and try and find where the problem lies. Thanks for all the helps guys.

[vidar skotheim]

Nr 6 and 9 are switched ? The other nummbers should stand the same way also

[K Simmonds]

Nr 6 and 9 are switched ? The other nummbers should stand the same way also

Worth double checking that....

I'd remove the lifters on the inlet side to rule out a binding valve(s) or indeed the lifters themselves and try the cam shaft from your old head before resorting to swapping caps off another head.

Going through everything on the inlet side from scratch methodically will bring the issue to light.

Good luck!

[newsh]

Could it be caps 6 and 9 swapped?

[hunker7]

Double checked everything now. Will try and torque down as per Audi workshop manual.

[Thuppu]

Are you sure your timing is correct, intake valve hits piston?

[hunker7]

I'm sure. Cams are set and I put a long stick in Cyl1 to make sure it's at TDC.

[quattro-nick]

i would remove your cams and put your caps back on the head and torque them.
on this way you can see if there or any imperfections......

[hunker7]

Just torqued everything to 10nm, and it wouldn't turn over. Loosened intake cam and did a full revolution without problems. So now I'll take intake caps off and put mine on and see.

[Thuppu]

Also cam can be bend.

[terrybullwon]

Also cam can be bend.

[K Simmonds]

Me too.

Have you tried it without lifters to completely rule out them or the valves?

[hunker7]

Just changed cam caps to what I believe are from my old head on inlet camshaft and torqued to 15nm and turns over perfectly.

[Thuppu]

So you don't keep the caps with the head? Maybe you mismatched them before..?