Turbo - Manifolds

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Revision as of 22:46, 22 December 2006 by HarryMann (talk | contribs)
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Seems there are a couple of different manifold versions for the JX diesel engine out there. 
Here are some pics (credit: SyncroAndy) that include those of the heat shields and their fixing, as well as some notes.

Also worth noting is that these manifolds:

Distort and crack, often the flanges for cyls 1 & 4 'pull-back' from the cylinder head face, come loose and start blowing, and a well known typical crack occurrs in the inside corner of the turbo/manifold mating face. These problems are worth knowing about if you have the manifold or turbo off at any time e.g. surface grind/true up the manifold flange faces, inspect the turbo/manifold faces (gasketless, so both must be pretty flat).

The heat shield fixing bosses/lugs/studs are often rusted away and/or the heat shields missing. Whether to replace or not - your choice, they might be a source of rattles but they're there of course to protect the inlet manifold (and hose) from intense radiated heat from the turbo and manifold, all in very close proximity.