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Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by scotybe, Nov 7, 2013.
i just put new gasket in and stupidly put gasket on wrong side...
what would happen??
It will probably block off some of the water jacket ports between he block and head. It will need to be removed and refitted correctly. On ecotec engines the right hand cylinder head gasket has a 5mm identification hole, the left cylinder head gasket has a letter L stamped into the gasket. Both markings must be visible when the cylinder heads are fitted. Also the arrows on both gaskets must face the front of the engine.
If you got yourself a workshop manual to follow, these things wouldnt happen..
Quick question, I have l67 heads but am unsure which is the right side head and left side head? Does it matter which head goes where?
Yes, you can fit them to either side. They're the same.
Also have a question regarding the rocker bolts, can they be reused as Holden have told me they can be reused?
I also have the stock rockers and pushrods mixed up that should be a problem due to it being factory rockers?
Thanks in advance
No problem reusing the bolts - just don’t use the factory torque specs. Because you may snap them. I’ve reused them many times without issue.
Shouldn’t mix rockers as a matter of principle but it won’t cause any damage in your case - they’ll be fine.
Rockers n pushrods all wear different so yes you could but no you should not. It may rattle. The engine bolts lm of the understanding as long as removed at a certain temp can be re used, head bolts nead to be removed in a sequenced pattern being the tourq down proceedure in reverse, outside to in also at a temp.
Thanks guys, when I got the head back from the machinist the rockers were just slapped in a bag, to my advantage is they are stock rockers and pushrods so putting them in any order should be fine?
Also, as I put the head bolts back in do I apply Loctite 567 or 242?
Thanks again really appreciate your help.
it shouldn't be necessary and l wouldnt. But ask your machinest or call a engine builder.
All recommended Loctite 242 on head bolts but I think I will go with Loctite 456 for head bolts as it’s water resistant too?
Well there you go, l watched a genuin gm tear down and rebuild explanatory given to all service but do not recall any thread lock mentioned. Only a sealant across the sump ends from memory. I could be incorrect.
He said they come on the bolts itself, aftermarket bolts don’t have theeadlocker on it therefore Loctite is applied.
If you mean GM genuine have it applied then l was incorrect saying it shouldn't be needed. I do recall seeing a bolt with what looked to have a grey coating on the thread but haven't recalled its pre applied nor have l had the heads off. I've in the past on cast blocks only torked down as was of the understanding thread lock can give incorrect tourq settings. Never had any issues either. An old school mechanic advice. If l was in your position l would have called Holden before hand. So that's why l mentioned call someone. I'm fearly certain a engine builder stated it was needed for high comp engines or boosted application but don't recall a n/a engine being a necessity. But l could be wrong.
Your right, in saying that this is a Vy l67 with stock boost
l researched the assembly criteria but it's related to a ls1. The tourq bolts are thread locked and the tourq to tourq angle were not.
Could someone please confirm with me the final stage of the head torque bolts will be 90nm torque? Thanks
l found this on a post..Head bolts: 34Nm then tighten a further 90 degrees in sequence (if torqued to90Nm during this step don't tightenanymore) Tighten a further 90 degrees in sequence a second time. Intake manifold: 15-20Nm.
Was for vx l67. Can't guarantee you...
I have actually tighten the head bolts to nearly 108nm as I was looking at foot pumps instead of nm, would that still be okay?
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