Thanks bige, ill have a look at that when we re-assemble.

maybe the centre cam bearing oil holes are not lined up properly or moved, then that won't let oil to go to the top of engine(rocker gear)this will cause seized rocker,cheers

Thats true, but the cam was still pushing the push rod against a siezed rocker.

Unlikely. The cam and lifter is not lubed by the rocker shaft.

We found where the noise was coming form. A siezed rocker. We dont want to open the engine, but would this rocker have made a mark or ridge on the cam. ADVISE PLEASE !!!!!!!!!!

i had the same problem a while ago, used 1200 head on 1400 block. ended up that i had to prime the oil pump to get it to build pressure.

Ive attached pics of the head, block and Head bolts. everything seems to line up correctly.

Attach file:

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  Andre Head.jpg (86.29 KB)


  N 6110 N(001).jpg (101.59 KB)


  N 6110 N(003).jpg (113.89 KB)

Also there are two "long" oil bolts, which are the same length:

11057-H2301 BOLT-CYLINDER HEAD LONG, TO OIL GALLERY (TO 6/73)
11057-H5000 BOLT-CYLINDER HEAD LONG, TO OIL GALLERY (FROM 7/73)

Take a look at this. Both the block and head are different:

I have checked the head bolts and the long one is at the oiler hole. Could this oiler hole maybe be blocked and if so how do I clear it, We have been driving the ute for 3 months with that noise, its getting worse not better.