85rx7crazydriver

hello, what is the problem called when you have antifreeze leaking out from around the intake manifold? and how hard is it to fix? thanks!

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iTrader: (1)

well you have to pull it off, and change the two rubber O rings. take the used O ring to the auto parts store and get to new ones. the one at the auto parts store are a little bigger but will work just fine.

85rx7crazydriver

cool, thanks!

mazdaverx713b

iTrader: (91)

the o-rings are in place because coolant runs through the intake manifold for accelerated warmup.

851stgen12a

You can circumnavigate having any sort of issues with those pesky O-rings by picking up 2 20mm freeze plugs from your auto parts store.
Just gently yet firmly drive them flush into the end of the water passage, and WALLAH!! no more coolant in your intake.... I still replace to O-rings just as a double measure it ensure there are no leaks.....

Jeff20B

iTrader: (13)

If you do decide to block coolant flow, you must also block the ACV port. If you don't, hot exhaust will heat up your manifold. It's a little rectangular port below the two intermediate ports. I like Quicksteel in the engine side because you can swap to any manifold, even the '79 style. Otherwise the manifold side is a little easier to deal with. You must clean the metal really well because of carbon and oil deposits.