Quote:
Originally Posted by Jay Gibbs
Also- The early manifolds that I have seen are single piece and do not have the expansion joints. I've read that these manifolds are prone to constant cracking due to the inability to expand/contract at the rate of the aluminum heads...should I be concerned about this, or is there another pre '75 catless manifold that actually HAS the expansion joints???
Thanks.
J.G.
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The engine shop manual has a survey of all the manifold types. But, so far as I know, all North American D-Jets did have expansion joints. My '72 has two per side, if I recall correctly. But this did not stop the passenger side from cracking several times in 20 years. I eventually drilled out the manifold bolt holes slightly, and touch wood, have not had any further problems. I think some sedans had the solid manifolds. Any 72 or 73 should have the same as mine.
I can't help you with the EGR. Don't have it on the early cars, so I guess you could do without it too!
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Graham
85 300D
,72 350SL, 98 E320, Outback 2.5