Ceramic Coating a new Exhaust Manifold? - Page 2

q-authority · 09-29-2009, 09:35 PM

Regarding the constant cracks on the #4 exhaust runner, has anyone with the very late exhaust manifold, where the egr bung was moved, experienced the same cracking? Please respond only if you have actually verified that it has or has not cracked on those.
My thought is that the egr bung location change may have actually been done in relationship to all that cracking on the early models, otherwise why change it? They didn't need to just for the sc application, that I am aware of. At least I don't see why they would have needed to.
I have verified that they no longer sell the old egr pipe, but do still sell the late model one, which is also different from the sc unit. I have ordered the late na model egr pipe, to use when I eventually have to replace the older style manifold on my '87 na. I'll buy a late model exhaust manifold to replace it, and use with the later egr pipe. comprende?

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09-29-2009, 09:35 PM	#21 (permalink)
q-authority Fab4MR2 Join Date: Feb 2008 Location: Emerald City Posts: 84 Thanks: 0 Thanked 6 Times in 6 Posts My Google Map iTrader Rating: (0/0% )	Regarding the constant cracks on the #4 exhaust runner, has anyone with the very late exhaust manifold, where the egr bung was moved, experienced the same cracking? Please respond only if you have actually verified that it has or has not cracked on those. My thought is that the egr bung location change may have actually been done in relationship to all that cracking on the early models, otherwise why change it? They didn't need to just for the sc application, that I am aware of. At least I don't see why they would have needed to. I have verified that they no longer sell the old egr pipe, but do still sell the late model one, which is also different from the sc unit. I have ordered the late na model egr pipe, to use when I eventually have to replace the older style manifold on my '87 na. I'll buy a late model exhaust manifold to replace it, and use with the later egr pipe. comprende?