New Hurley side seals.
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Senior Member
Joined: Nov 2001
Posts: 7,316
From: Bay Area, CA
The design looks to be better than the Mazda design:
http://www.hurley-engineering.ltd.uk/hme_r..._side_seals.htm
The stock Mazda seals get kind of brittle with age. I've had a few break with very little pressure while taking them out of rotors .
http://www.hurley-engineering.ltd.uk/hme_r..._side_seals.htm
The stock Mazda seals get kind of brittle with age. I've had a few break with very little pressure while taking them out of rotors .
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Joined: Oct 2001
Posts: 790
From: Portland, OR
The only problem I see is that Raduised edge wearing down quicker. Mazda put 2mm rings in the GLC saying that they reduced friction (back in the mid 80's). These mazda GLC's needed a ring job at 50,000 miles.
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From: Bay Area, CA
Originally Posted by Shaolin Racing' date='Jun 20 2002, 12:17 PM
Seems like it would be better because the round edges wont catch on any irregulars on the housing right?Since its a side seal there wouldnt be any detonation there so I cant really say it would take detonation any better.
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Originally Posted by dac' date='Jun 20 2002, 12:29 PM
The only problem I see is that Raduised edge wearing down quicker. Mazda put 2mm rings in the GLC saying that they reduced friction (back in the mid 80's). These mazda GLC's needed a ring job at 50,000 miles.
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From: NJ
i rechecked my other engine. i think the old sidehousings can be resused so hard part list needed for the engine is two rotors and two rotor housings . got any lying around ? we can try those new hurleys on the spare engine 
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Originally Posted by vosko' date='Jun 20 2002, 02:44 PM
i rechecked my other engine. i think the old sidehousings can be resused so hard part list needed for the engine is two rotors and two rotor housings . got any lying around ? we can try those new hurleys on the spare engine
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From: NJ
Originally Posted by 13BAce' date='Jun 20 2002, 12:53 PM
[quote name='vosko' date='Jun 20 2002, 02:44 PM']i rechecked my other engine. i think the old sidehousings can be resused so hard part list needed for the engine is two rotors and two rotor housings . got any lying around ? we can try those new hurleys on the spare engine
sounds good to me. hmmm maybe i'll send the housings to RB to get lapped
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From: Bay Area, CA
Originally Posted by vosko' date='Jun 20 2002, 02:58 PM
[quote name='13BAce' date='Jun 20 2002, 12:53 PM'][quote name='vosko' date='Jun 20 2002, 02:44 PM']i rechecked my other engine. i think the old sidehousings can be resused so hard part list needed for the engine is two rotors and two rotor housings . got any lying around ? we can try those new hurleys on the spare engine
sounds good to me. hmmm maybe i'll send the housings to RB to get lapped[/quote]
You can take out the stationary gears and rub the housings together using valve grinding compound.
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From: NJ
Originally Posted by 13BAce' date='Jun 20 2002, 01:20 PM
[quote name='vosko' date='Jun 20 2002, 02:58 PM'][quote name='13BAce' date='Jun 20 2002, 12:53 PM'][quote name='vosko' date='Jun 20 2002, 02:44 PM']i rechecked my other engine. i think the old sidehousings can be resused so hard part list needed for the engine is two rotors and two rotor housings . got any lying around ? we can try those new hurleys on the spare engine
sounds good to me. hmmm maybe i'll send the housings to RB to get lapped[/quote]
You can take out the stationary gears and rub the housings together using valve grinding compound.[/quote]
i'll let you do that :P i might have found two 89 rotors + two 89 housings for $400 we'll see what happens. actually if its $400 i'm better off getting another jspec for $650 and selling the parts off this one