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-   -   bad apex seals? (https://www.rx7club.com/general-rotary-tech-support-11/bad-apex-seals-609866/)

S5Timmy 12-31-06 03:18 PM

bad apex seals?
 
what are some signs of bad apex seals??

Rocking Rotary 12-31-06 04:07 PM

no compression on two faces of the rotor.

GoodfellaFD3S 12-31-06 04:18 PM

low vacuum that oscillates regularly, shaking motor, exhaust note sounds like a lawnmower. Usually happens after a redline 3rd gear pull with too much boost in my experience ;)

S5Timmy 12-31-06 05:01 PM

well what could be the reason my car smokes really bad when i start it and it smells like anti freeze. im pissing away anti freeze from the over flow, it seems like im buring it.

Rocking Rotary 12-31-06 05:07 PM

Thats a bad coolant seal. That also qualifys you for a rebuild.

GoodfellaFD3S 12-31-06 06:45 PM


Originally Posted by S5Timmy
well what could be the reason my car smokes really bad when i start it and it smells like anti freeze. im pissing away anti freeze from the over flow, it seems like im buring it.

Yup, bad coolant seal. Did you ever run the car hot? I do ports and rebuilds out of a garage in Clifton NJ, PM me if you're interested in some pricing.

S5Timmy 12-31-06 07:46 PM

yea it runs fine when it hot as long as theres anti freeze in it. how much does it usually run to fix that?

GoodfellaFD3S 12-31-06 08:14 PM


Originally Posted by S5Timmy
yea it runs fine when it hot as long as theres anti freeze in it. how much does it usually run to fix that?

PM sent.

JP's 93 fd 01-01-07 03:32 AM


Originally Posted by GoodfellaFD3S
low vacuum that oscillates regularly, shaking motor, exhaust note sounds like a lawnmower. Usually happens after a redline 3rd gear pull with too much boost in my experience ;)

hey my car oscillates but only when i put it in first gear but never in neutal especially when its been driven for a while. can it be the seals, i'm thinking not. you think its a vacuum leak?

diabolical1 01-01-07 05:13 AM

is that when you're engaging first gear? if so, it's probably bad mounts (engine, tranny or both). if you had a bad apex seal, the car would idle different (at the least) and you would have noticed a marked decrease in power.

diabolical1 01-01-07 05:26 AM

double post.

Rocking Rotary 01-01-07 12:45 PM


Originally Posted by JP's 93 fd
hey my car oscillates but only when i put it in first gear but never in neutal especially when its been driven for a while. can it be the seals, i'm thinking not. you think its a vacuum leak?

Check your TPS and if that dosn't fix it. You may have a vacum leak.

JP's 93 fd 01-01-07 09:03 PM


Originally Posted by Rocking Rotary
Check your TPS and if that dosn't fix it. You may have a vacum leak.

TPS???? I'm not sure what that is but if you know where i can find it on the car, i can use all data to pin point where exactly where it is. What does tps stand for? thanks.

Rocking Rotary 01-01-07 10:24 PM

Throttle position sensor search the forum for a write up on how to adjust it.

GoodfellaFD3S 01-01-07 10:39 PM

It's located on the rear section of the throttle body near the firewall. If you have a power fc and commander you can check the voltage to see if it's out of spec and if so, adjust it until it's within spec.

JP's 93 fd 01-02-07 01:25 AM

thanks for the help!!!

nocomply24 01-02-07 03:27 AM

how do you check with the power fc to see if the voltage is out of spec?

GoodfellaFD3S 01-02-07 08:55 AM


Originally Posted by nocomply24
how do you check with the power fc to see if the voltage is out of spec?

It's tough to remember w/out a commander in front of me, but I believe it's under the 'etc' menus, listed as 'sensor/sw check.' You can check the voltages across many sensors, including the OMP and TPS. If it's out of spec, it will be highlighted. If you have deleted your secondary fuel rail (ie running top feed 1680cc injs) then you'll see your fuel temp sensor highlighted b/c it's no longer on the car.

nocomply24 01-03-07 12:01 PM

hey i just checked mine and a few things had the little circle filled in next to them.

1.NTR...?
2.APR...?
3.CCN...?
4.FPD...?

what does that mean? or where can i go to see what that means, casue i know your a busy man.

mods are: dp,mp,dual n1, fmic, koyo rad, power fc.


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