Anyone ever popped a FRONT apex seal??
#1
I came, I saw, I boosted.
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Anyone ever popped a FRONT apex seal??
OK... why is it ALWAYS the real rotor seals that go when the engine blows?????
I'm not just talking about turbos, because I know that the fuel cut functions on the rear rotor only, causing a lean condition, but even on N/A's, when the motor blows for whatever reason, it's almost always the real rotor. Even with stuck seals, or other problems.. it still always seems to be the rear rotor.
Anyone have any theories???
I know the rear injectors are after the front on the fuel rail, but that shouldn't cause a lick of difference unless you are totally taxing the fuel pump!
Maybe something to due with a little more heat buildup? Harmonic frequency different beacuse of the flywheel?? Oiling discrepencies?
WHY???
I'm not just talking about turbos, because I know that the fuel cut functions on the rear rotor only, causing a lean condition, but even on N/A's, when the motor blows for whatever reason, it's almost always the real rotor. Even with stuck seals, or other problems.. it still always seems to be the rear rotor.
Anyone have any theories???
I know the rear injectors are after the front on the fuel rail, but that shouldn't cause a lick of difference unless you are totally taxing the fuel pump!
Maybe something to due with a little more heat buildup? Harmonic frequency different beacuse of the flywheel?? Oiling discrepencies?
WHY???
#4
Eats, Sleeps, Dreams Rotary
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Try searching. Damn newbies!
https://www.rx7club.com/forum/showth...hreadid=164694
In case you're wondering I blew my front rotor.
https://www.rx7club.com/forum/showth...hreadid=164694
In case you're wondering I blew my front rotor.
#7
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Did I just get called a newbie??????? Don't know what that's supposed to mean, oh well.
Anyways, That poll supports my point....
I thought about heat retention, via the output shaft and tranny/clutch... who knows.
Anyways, That poll supports my point....
I thought about heat retention, via the output shaft and tranny/clutch... who knows.
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#8
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Bambam, It's due to the fact the rear rotors coolant Is much more constant (hotter) than the front. Remember, the coolant follows the U path and finds It's way back to cooler temps In the Rad and repeats. The U being the bending point of the direction of collant flow and where the rear rotor Is.
#9
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I was just razing you because there was a very recent post on the subject (near the top of page 2). It was also a shot at the fact that newbies always get hell for this kind of stuff. It's not nessisarly fair.
#10
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I didn't know about the recent post... I don't spend as much time on this forum as I used to! Usually only to search for things.
As fo the coolant path.....that was one thought I had... wow.. I guess the difference in temp is substantial!
As fo the coolant path.....that was one thought I had... wow.. I guess the difference in temp is substantial!
#12
BDC Motorsports
It's largely due to two things:
1) There's a factory EGR passage that runs through the rear rotor housing and up near the lower intake manifold, heat-soaking the rear secondary runner
2) The factory fuel system on the Turbo II is in sequential flow (where there's pump, RP FP, FS, and lastly RS injectors, then FPR) vs. parallel rails. A slight drop in pressure by the time fuel volume hits the rear secondary injector will run the rear chamber slightly leaner.
B
1) There's a factory EGR passage that runs through the rear rotor housing and up near the lower intake manifold, heat-soaking the rear secondary runner
2) The factory fuel system on the Turbo II is in sequential flow (where there's pump, RP FP, FS, and lastly RS injectors, then FPR) vs. parallel rails. A slight drop in pressure by the time fuel volume hits the rear secondary injector will run the rear chamber slightly leaner.
B
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Re: Anyone ever popped a FRONT apex seal??
Originally posted by Bambam7
Anyone have any theories???
WHY???
Anyone have any theories???
WHY???
Oh my '91 has a blown front apex seal.
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I dont have any theories but I got an 86 na with no compression on the fron rotor. Then last week my TII dropped one of the apex seals on the front rotor.
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