NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Rotary Engine Building and Porting FAQ Section (https://www.nopistons.com/rotary-engine-building-porting-faq-section-85/)
-   -   Tips And Tricks For Rebuilding (https://www.nopistons.com/rotary-engine-building-porting-faq-section-85/tips-tricks-rebuilding-22499/)

BDC 05-27-2006 11:28 AM

My assembly lube of choice: Lucas Engine Oil Stabilizer, non-synthetic. It's tacky as heck and will not rust over time. It allows the placement of seals and springs w/o allowing them to spring out and all over the place. Works very well and is designed for use in engine oil. Will burn out after initial start.

Ledfoot 07-15-2006 02:41 AM

...before reassembly...glue 2 piece apex seals together.



...relace everything that normally comes in a master rebuild kit...reuse nothing!

ArmyOfOne 12-22-2006 10:13 AM

For disassembly. How many times have you found yourself just beating on the flywheel trying to get it to break loose of the eccentric shaft?



Well this has worked perfect on the last 3 engines.



Take the flywheel nut nearly all the way off the treads with the engine sitting on the floor. Ensure the area is free of oil and fuel. Use a small propane torch on low heat and go around the center of the flywheel in a circular pattern. Do no heat the eccentric shaft, just the flywheel. Once you feel the edge of the flywheel start to warm up, remove heat. Use a small prybar between the edge of the rear housing and the flywheel. Make sure the prybar is aligned with the keyway, pry on it slightly and lightly tap the flywheel with a hammer opposite the prybar.



Heat makes the flywheel expand away from the e-shaft and a couple of gentle lovetaps vibrate it loose, no more damaged threads or bearings.



I hope is works as good for you as it has for me.

thebluerx7 12-26-2006 12:02 AM


...before reassembly...glue 2 piece apex seals together.


i was wondering if u could do that,cool.



another one though,how do u best measure apex seal length when re using 2 piece seals,just hold them together and ,measure or what?



the glue would be no good cos it would add length to the seal stuffing up the measurements sice we are talkin 0.001 increments we are measuring.



whats ur tricks there?

Old Grey 04-25-2008 11:07 AM

As was stated before, the oil pump key can fall out when fitting the drive sprocket. A better solution is DON'T undo the drive sprocket nut, undo the 4 pump bolts under the sprocket. If the pump looks OK there is no need to full disassemble it.

bryceRXer 01-15-2009 05:21 PM

For a newbie like myself, I found this site extremely useful:



http://www.rebuildingrotaryengines.com/


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