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LIM gasket
2 Attachment(s)
Anyone else seen one of these gaskets before? It's almost like a hard plastic and I have never seen something like this sealing an intake to engine. Guessing I should just replace it with an oem?
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There was a company a number of years back that made those. There was a fad for "phenolic gaskets" that supposedly wouldn't transfer heat into the intake manifold so you make MO POWAH.
IMHO, snake oil. The OEM metal gasket works great and will seal up with no problems. Make sure both mating surfaces are clean and flat, put it in, and don't ever worry about it again. Dale |
I see. I am in the process of swapping to single which is why everything is off, used all blockoffs except IAC, and in the process of cleaning the vacuum lines.
There is the fuel injector atomizer that seems to have conflicting info regarding just blocking off or running to the pressure side of intake. I see that the xcessive LIM doesn't have any of that which seems to me that they say it's not needed? Planning on just blocking off all the lim holes. |
They melt and fail. I only use the oem gaskets.
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supposdly the fuel atomizer only really helps atomize fuel better at low RPM / idle
supposdly newer injectors have a better spray pattern/atomize fuel better anyway so the atomizer hose is not required. In saying that, when I completed my single turbo build a few months back, I installed the fuel atomization hose..I ran it to a nipple on the intake elbow...i dunno..I just like the idea of having it connected?... |
Useless garbage, tried them 6 years ago on my 20B.
Originally Posted by Banzai-Racing
(Post 10221661)
So here is an update on gaskets. Anyone thinking of using the new super polymer gaskets, don't bother. I had figured I would give them a shot, they did not last long at all. I recently developed a high idle and could smell fuel after boosting. Narrowed it down to a vacuum/boost leak at the LIM gasket. It literally deformed it's way into the runner causing a huge leak. Installed a stock metal reenforced 20b gasket this morning. All problems solved. https://www.rx7club.com/attachment.p...1&d=1284749372 https://www.rx7club.com/attachment.p...1&d=1284749372 |
The stock metal gasket is best installed with light grease on the stufaces and tightening from the middle-out. This keeps the gasket from bunching up as it compresses. There's a tsb about it somewhere, i guess the techs were having problems after the switch from a paper gasket.
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Atkins has the oem gaskets I picked up, shows metal. I've felt that there was some leaking in the intake system from those plastic gaskets and although the upper gasket looks decent, the lim one was not so great looking.
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