Opinion of wear on these seals?
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 36
Likes: 0
From: australia
Opinion of wear on these seals?
i was hoping somebody could give me an idea as to what causes seals to wear like this?
lowish compression on the rear rotor, front rotor was fine, side seals were all good.
only notable thing was a little wear during the pulldown. a bit of a shamfer where it has worn more, towards each end of the seal, lines up with the exhaust port edges.
did not suffer the same problem on the front rotor seals. no seals seem to be warped, were checked on sheet of glass with feelers. 2,000km in the car @ 20psi. although it was like angry pack rape on the motor with the way i drive
sorry about the pics, i did my best
lowish compression on the rear rotor, front rotor was fine, side seals were all good.
only notable thing was a little wear during the pulldown. a bit of a shamfer where it has worn more, towards each end of the seal, lines up with the exhaust port edges.
did not suffer the same problem on the front rotor seals. no seals seem to be warped, were checked on sheet of glass with feelers. 2,000km in the car @ 20psi. although it was like angry pack rape on the motor with the way i drive
sorry about the pics, i did my best
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 36
Likes: 0
From: australia
my thoughts as well...
but spot the difference between them... i cant see it, or feel it
nothing has been cleaned yet, just wiped down
option a or b?
A)
B)
A is the problem housing
but spot the difference between them... i cant see it, or feel it
nothing has been cleaned yet, just wiped down
option a or b?
A)
B)
A is the problem housing
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 36
Likes: 0
From: australia
talking head
Joined: Apr 2008
Posts: 2,775
Likes: 15
From: Perth, WA, OZ
A
- see the carbon streak where the apex seal is not following the housing
suspect the lip of that exhaust port is lifting the seal up under heat
spec it out and maybe go nuts on both with chamfer
- see the carbon streak where the apex seal is not following the housing
suspect the lip of that exhaust port is lifting the seal up under heat
spec it out and maybe go nuts on both with chamfer
if you say so...
chamfer looks fine to me, seal warpage under various circumstances would be my guess. you can blame it on the seals warping out in the center or you can blame it on a lean condition which is warping the seals out in the center.
easy fix would just be to add water injection, should help prevent whatever is going on.
chamfer looks fine to me, seal warpage under various circumstances would be my guess. you can blame it on the seals warping out in the center or you can blame it on a lean condition which is warping the seals out in the center.
easy fix would just be to add water injection, should help prevent whatever is going on.
Last edited by RotaryEvolution; May 31, 2011 at 02:57 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM
mulcryant
2nd Generation Specific (1986-1992)
10
Sep 9, 2015 05:24 PM