2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Question on replacing coolant seal.

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Old Jul 25, 2009 | 08:44 PM
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Question on replacing coolant seal.

Do I really have to rebuild my engine if it's just a coolant seal? I see how yes I would already be on the inside of the engine and many people would say you might as well rebuild, but couldn't I just pull the rear housing and replace the seal? I haven't ever pulled a rotary engine, I've just been going over the haynes manual that's why I am asking, because it seems like a straight forward process.
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Old Jul 25, 2009 | 10:58 PM
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well... seeing as the rear housing is the first housing you assemble... looks to me like ur dismantling your whole engine sry to say. make sure those COOLANT GROVES ARE RELAY CLEAN!!!. i just rebuild mine due to the oil control ring
but i would inspect all the parts if internals are within the factory specs then just get a basic gasket set and get oil control ring set are they are cheap and will save you from troubles down the road use loads of Vaseline get the name brand stuff not the cheap stuff. and lube that engine up good once the block is all cleaned up and lubed ur looking at around 1hour to re assemble it. make sure u torque that front bearing properly as it could lead to bad news. if i think my best advice to you would be GET one of THOSE http://www.atkinsrotary.com/store/home.php?cat=707
it will walk u through all the steps u need Aaron cake lent me his..... witch i need to return some day :O sry Aaron

Good luck, PS i figure u know this but dont run that engine with a coolant leak it will cost u more down the road
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Old Jul 25, 2009 | 11:06 PM
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Short answer..."yes"
edit - this is to the OP's second question

Last edited by Elbi; Jul 25, 2009 at 11:09 PM.
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Old Jul 26, 2009 | 01:23 AM
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Originally Posted by immanuel__7
well... seeing as the rear housing is the first housing you assemble... looks to me like ur dismantling your whole engine sry to say. make sure those COOLANT GROVES ARE RELAY CLEAN!!!. i just rebuild mine due to the oil control ring
but i would inspect all the parts if internals are within the factory specs then just get a basic gasket set and get oil control ring set are they are cheap and will save you from troubles down the road use loads of Vaseline get the name brand stuff not the cheap stuff. and lube that engine up good once the block is all cleaned up and lubed ur looking at around 1hour to re assemble it. make sure u torque that front bearing properly as it could lead to bad news. if i think my best advice to you would be GET one of THOSE http://www.atkinsrotary.com/store/home.php?cat=707
it will walk u through all the steps u need Aaron cake lent me his..... witch i need to return some day :O sry Aaron

Good luck, PS i figure u know this but dont run that engine with a coolant leak it will cost u more down the road
I am definitely going to get one of the videos. Thanks for the info guys.
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Old Jul 26, 2009 | 01:32 AM
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Unless you're 100% positive it's only the rear housing, you should the full rebuild. The front and center irons might be on their way out, and the gasket kit is cheap.
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Old Jul 26, 2009 | 02:25 AM
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I'd just do a full rebuild while you have engine out and basically apart. The extra cost of a complete rebuild kit vs a set of water seals is kind of offputting, but the way I see it; you'll have to do a full rebuild eventually (assuming you plan on keeping the car) so might as well do it all now, rather than pulling the engine twice.
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Old Jul 26, 2009 | 10:48 AM
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Originally Posted by need RX7
I'd just do a full rebuild while you have engine out and basically apart. The extra cost of a complete rebuild kit vs a set of water seals is kind of offputting, but the way I see it; you'll have to do a full rebuild eventually (assuming you plan on keeping the car) so might as well do it all now, rather than pulling the engine twice.
True that, my S5 TII was around 1200$ to rebuild from scratch, with all Atkins parts. and while your there might as well port :P
thats if you dont have to pass E-test lol
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