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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   why arent there aftermarket side seals? (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/why-arent-there-aftermarket-side-seals-63566/)

j9fd3s 01-10-2007 03:42 PM

mazda wants $100 for a set of 12 @dealer cost, seems like the price could be beaten, and the application is less material depentant than the apex seals, and since you have to fit the stock ones anyways, thats not really an issue either.



so why doesnt anyone do it?

fc3sboy1 01-10-2007 05:41 PM

no real demand for it im guessin. shoot 100 bucks for a set of side seals aint bad at all in my book

RXheaven13b 01-11-2007 02:23 AM

Hurley seals

http://www.hurleyrotary.com/images/newsseal.jpg

ikari89 01-11-2007 01:48 PM

lol please do not buy hurley seals i have heard nothing but bad things about that company.

1Revvin7 01-11-2007 02:02 PM


Originally Posted by fc3sboy1' post='852673' date='Jan 10 2007, 06:41 PM

no real demand for it im guessin. shoot 100 bucks for a set of side seals aint bad at all in my book



I know a company locally that has done it before, and said they could do it for me. Just isn't a big enough demand...

Cheers! 01-11-2007 04:21 PM

They don't look like easy to make from scratch. You would need to get the bend right, the hardness right... etc etc....



100 for a set now eh? THat is what mazdaspeed motorsports wants too. I finally going to attempt building a new motor for my dead rx7. It's been dead too long.

j9fd3s 01-11-2007 06:06 PM


Originally Posted by Cheers!' post='852796' date='Jan 11 2007, 02:21 PM

They don't look like easy to make from scratch. You would need to get the bend right, the hardness right... etc etc....



100 for a set now eh? THat is what mazdaspeed motorsports wants too. I finally going to attempt building a new motor for my dead rx7. It's been dead too long.



been a year and a little bit?

heretic 01-11-2007 06:38 PM


Originally Posted by j9fd3s' post='852643' date='Jan 10 2007, 01:42 PM

mazda wants $100 for a set of 12 @dealer cost, seems like the price could be beaten,



Have you priced out a set of piston rings that thin/small? They aren't all that much cheaper.

Cheers! 01-11-2007 07:36 PM


Originally Posted by j9fd3s' post='852816' date='Jan 11 2007, 07:06 PM

been a year and a little bit?



come end of may it will be 1 year

Lynn E. Hanover 01-11-2007 08:56 PM


Originally Posted by j9fd3s' post='852643' date='Jan 10 2007, 02:42 PM

mazda wants $100 for a set of 12 @dealer cost, seems like the price could be beaten, and the application is less material depentant than the apex seals, and since you have to fit the stock ones anyways, thats not really an issue either.



so why doesnt anyone do it?





Because they are sand castings in iron. All surfaces are finished to size by grinding. Lots of labor and machine time involved.



Nobody is killing themselves trying to get into the side seal buisness. They seldom fail, and last for years and years. I often use them through a rebuild when clearance is below .002", where apex seals and corner seals are replaced. I start them at zero clearance. If a wet nasty happens you can file the worn edges with a diamond file and if the wear marks from the spring are not too bad, flip them over and run them on the spring side. Works real good.

Lasts a long time.



And you thought you were cheap.



Lynn E. Hanover


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