Thread: Removing Head - difficult bolt

Originally Posted by whitey56

Thick cardboard for the head while traveling, machine the exhaust manifold if it's warped and refit with new studs, clean the inlet manifold and if it's choked maybe clean the intercooler too.
When I put my head in the shop I let them pull the glowplugs out,at least then it's near decent stud removers and oxy if they break.
If you already have the gasket set give the engine shop the new valve guide seals it will save you a second trip there.
My head job has been going for 4 months too, I am doing a brake reline on the back axles on my truck this week so i will be all mechaniced out after that one and won't look at the disco again.

Thanks. Glow plugs are out already, and good thinking on the valve guide seals. I think I've got them in the gasket set. Intercooler has been soaking with solvent to clean it, and exhaust manifold is pretty good (somehow).

Originally Posted by discorevy

Pinelli , what are the dowells like as the plastic ones are likely to be mashed causing the head to walk around giving your problems, replace with steel , just make sure they're not too long when refitting the head

Plastic dowels came out in two parts each, stuck in the block and and the head. Haven't yet thought about how to get them out yet. Maybe an easy out.

I don't get the steel dowel thing. The engine has got, what, 12 huge long bolts right through the head and block, torqued down massively, and yet the head moves, or doesn't, depending on two little dowels? Just seems nuts.

and the head moves so much they turn the plastic to pulp,,
these TTY things work a treat huh,,,

Update on project, I've now got the injectors out, and all the other bits and pieces with fancy names, bar the valves, which I'm leaving in.

Will have to work out how to get the washers off the injectors. They seem pretty fixed.

And any week now I'll get the head to the engineers to get tested.

This is the first alloy head I have pulled off and I have to agree with you about the head bolts.
Has anybody had heads off different manufacturers engines around the same vintage, have they a. strange arrangement for head bolts like the TD5.