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question 'bout a manifold
Posted: Tue Feb 19, 2008 10:47 am
by pedro
Gday all, i've got a 85 swb Nb 2.6 and i've got to replace the manifold cause she's buggered...i've heard that magna and izuzu manilolds maybe compatable..is this right or am i just been given the run around? Cheers mutchly for any help. :]
Posted: Wed Feb 20, 2008 9:13 pm
by scooby_74
Iszu im not sure about, Magna manifolds wont fit thermistat is in the wrong place sigma can fit though a certain modle of the rodeo came out with an astron motor aswell
Posted: Wed Feb 20, 2008 10:21 pm
by -Scott-
I can't imagine why Isuzu would turn to Mitsubishi for an engine?
The thermostat placement can be worked around, but the biggest issue is stud pattern. Magna used Astron 2, which have lower studs between ports. Astron 1 lower studs are immediately below the ports. Again, there are work-arounds, but a Sigma manifold should bolt up OK - either 2.0 or 2.6, but you'll need to make sure it's NOT Astron 2. (Where are you? I might have one.)
But what's wrong with your manifold? Hole in the bottom plate of the water gallery? If so, find an aluminium welder, grind off the bottom plate and weld on a new one. Better than anything you'll find second-hand.
Posted: Thu Feb 21, 2008 9:37 am
by pedro
Cheers fellas...I'm in Stanthorpe [ border town,2 and a half hours south of brisvegas on the way to tenterfield]....Yeah i took it off the other day and found some decent cracks on the block side..one's about 3 inches long the others abit smaller...goes all the way thru just filled up with crud..wasn't sure if its repairable or not.:]