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Getting Ready For My First Rebuild

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Old 08-23-11, 05:03 PM
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TX Getting Ready For My First Rebuild

Hello everyone, I recently had the coolant seals go out on my 87 NA. I really like the car, and would love to get it running again. It looks like I will be able to afford to rebuild it. So I ordered the instructional video from Atkins Rotary. I will get started (or postpone til later) after I watch the video.

As this is my first build, is are there any pro tips that are indispensable? Any tools that are real lifesavers?

I also watched this video, http://www.rebuildingrotaryengines.c...Rotor_Housings apparently, coolant seal failures can be very destructive. Should I expect to buy new housings as well?

And finally, since it will be all apart, I was thinking of getting it ported by Rotary Performance up in Garland, TX. But I have heard mixed reports about porting a 6 port engine. Anyone want to throw in their thoughts?

Wish me luck!
Old 08-24-11, 12:08 AM
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All I have to say about coolant seal blown motors is be sure that you use fogging oil in the engine if there will be any downtime between you parking the car in the garage and tearing apart the block.

Failure to do so can result in rusted internals and a junk motor. I let my car sit for a year before its rebuild, and even though coolant pooled in the housings over that year the block came apart fine and was readily rebuildable.
Old 08-24-11, 03:50 AM
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Originally Posted by BomberMan
All I have to say about coolant seal blown motors is be sure that you use fogging oil in the engine if there will be any downtime between you parking the car in the garage and tearing apart the block.

Failure to do so can result in rusted internals and a junk motor. I let my car sit for a year before its rebuild, and even though coolant pooled in the housings over that year the block came apart fine and was readily rebuildable.
ATF works wonders as well... just dump some in the ports and give er a few cranks around... it'll dissolve the carbon for you too (to some extent)
Old 08-24-11, 08:22 AM
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Thanks for the tip. I don't know for sure how long it will be sitting, so I will for sure pick up a can of that stuff.
Old 08-27-11, 11:00 AM
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Porting 6 port engines generally results in a fairly hefty loss of low and midrange torque...So only a minor port job is recommended. I think a great example of this is the Mazdatrix template.

These videos may help you:

13B disassembly:

http://www.youtube.com/watch?v=W1MXfs_Srs4

Engine cleaning:

http://www.youtube.com/watch?v=U5A5q61bzRI

Mild port job. This shows a very specific port job for a very specific purpose, but is a great example of what's involved.

http://www.youtube.com/watch?v=y1Gy5sVMK3o

13B engine rebuild:

http://www.youtube.com/watch?v=ijJeUk_GqiI
Old 08-29-11, 10:55 PM
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Originally Posted by Aaron Cake
Porting 6 port engines generally results in a fairly hefty loss of low and midrange torque...So only a minor port job is recommended. I think a great example of this is the Mazdatrix template.

These videos may help you:

13B disassembly:

http://www.youtube.com/watch?v=W1MXfs_Srs4

Engine cleaning:

http://www.youtube.com/watch?v=U5A5q61bzRI

Mild port job. This shows a very specific port job for a very specific purpose, but is a great example of what's involved.

http://www.youtube.com/watch?v=y1Gy5sVMK3o

13B engine rebuild:

http://www.youtube.com/watch?v=ijJeUk_GqiI
There surely gonna help me. I watched them and I just learned alot. I just pulled the n/a out of my 86, going to rip it apart and see if its salvageable. thanks for those vids!!!
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