posted                             

quote:

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Originally posted by NEIGHT:
Throwout bearing nigga.

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quote:

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Originally posted by Blind:
I'd check the ujoints/bolts at the pumpkin

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I was thinking it was maybe a terrible backlash setting on the gears. I'll try to check the ujoints and bolts at pinion flange. I hope it's not the clutch. I don't want to pull this tranny. I just got the sumabitch back running.

BTW there are no sounds when the car is in neutral. Hopefully I can have it up in the air tomorrow night.

[ April 10, 2012, 12:09 AM: Message edited by: 90FoX ]

posted                             

quote:

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Originally posted by 90FoX:

quote:

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Originally posted by NEIGHT:
Throwout bearing nigga.

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Wouldn't a throw out bearing make a whistle or something? Not a clunk right?

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posted                             

quote:

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Originally posted by 90FoX:

quote:

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Originally posted by NEIGHT:
Throwout bearing nigga.

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Wouldn't a throw out bearing make a whistle or something? Not a clunk right?

quote:

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Originally posted by Blind:
I'd check the ujoints/bolts at the pumpkin

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I was thinking it was maybe a terrible backlash setting on the gears. I'll try to check the ujoints and bolts at pinion flange. I hope it's not the clutch. I don't want to pull this tranny. I just got the sumabitch back running.

BTW there are no sounds when the car is in neutral. Hopefully I can have it up in the air tomorrow night.

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in my `97's old solid rear axle I broke the crush sleeve/washer in the rear end, it would clunk going on/off the throttle and every time I shifted. It had a lot of play, I jacked up one side leaving the other tire touching, e-brake off, and with it in gear I could rock one tire back and forth and watch the driveshaft pop back and forth.

that's why I did the IRS swap


--------------------
89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi

posted                             

quote:

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Originally posted by nitrous_bob:
You said bell or rear of trans....did you mean bell or rearof engine?

If its the rear of the trans its output shaft related or u joint I would guess.

Start by wiggling the DS and look for excessive play either in tne tail shaft or either u joint

I wouldn't count out the TO bearing tho....the stock retainer is aluminum and gouges...it could be causing a ruff engage/disengage and making a pop

If the trans comes out do a steel bearing retainer ALWAYS

Does the clutch seem smooth or choppy?

And does it shift well otherwise?

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quote:

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Originally posted by Blind:

quote:

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Originally posted by 90FoX:

quote:

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Originally posted by NEIGHT:
Throwout bearing nigga.

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Wouldn't a throw out bearing make a whistle or something? Not a clunk right?

quote:

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Originally posted by Blind:
I'd check the ujoints/bolts at the pumpkin

---

I was thinking it was maybe a terrible backlash setting on the gears. I'll try to check the ujoints and bolts at pinion flange. I hope it's not the clutch. I don't want to pull this tranny. I just got the sumabitch back running.

BTW there are no sounds when the car is in neutral. Hopefully I can have it up in the air tomorrow night.

---

in my `97's old solid rear axle I broke the crush sleeve/washer in the rear end, it would clunk going on/off the throttle and every time I shifted. It had a lot of play, I jacked up one side leaving the other tire touching, e-brake off, and with it in gear I could rock one tire back and forth and watch the driveshaft pop back and forth.

that's why I did the IRS swap

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How did you break the crush sleeve? Over tightening it?

Haven't tested to see if it makes the sound when i let off the throttle or step on the throttle. I'll check next time I take her out. I hope that's not the case. I recently replaced a pinion seal and I tightened the pinion flange bolt to about 24 in lbs rolling resistance. I forget the exact number but it was close to this.

If it is the gears then I'll just pick up some FRPP 3.73's. I had these richmond gears in there for years and I'm sick and tired of the whine. (Richmond are known to whine a lot)


I'll touch base here after I take a look. Hopefully it's obvious and won't require too much time to diagnose.



[ April 11, 2012, 10:11 PM: Message edited by: 90FoX ]

posted                             

quote:

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Originally posted by outlawdragger:
Mine tho kinda sounds like some one hitting some solid part under my car with a rubber mallet.not bad just a kinda "thud" sound

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Yea that's basically what it sounds like

posted                             

quote:

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Originally posted by NEIGHT:

quote:

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Originally posted by 90FoX:

quote:

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Originally posted by NEIGHT:
Throwout bearing nigga.

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Wouldn't a throw out bearing make a whistle or something? Not a clunk right?

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Lol I don't know I was just throwing shit out.

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wow lol

posted                             

quote:

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Originally posted by 90FoX:
I was thinking it was maybe a terrible backlash setting on the gears. I'll try to check the ujoints and bolts at pinion flange. I hope it's not the clutch. I don't want to pull this tranny. I just got the sumabitch back running.

BTW there are no sounds when the car is in neutral. Hopefully I can have it up in the air tomorrow night.

How did you break the crush sleeve? Over tightening it?

Haven't tested to see if it makes the sound when i let off the throttle or step on the throttle. I'll check next time I take her out. I hope that's not the case. I recently replaced a pinion seal and I tightened the pinion flange bolt to about 24 in lbs rolling resistance. I forget the exact number but it was close to this.

If it is the gears then I'll just pick up some FRPP 3.73's. I had these richmond gears in there for years and I'm sick and tired of the whine. (Richmond are known to whine a lot)


I'll touch base here after I take a look. Hopefully it's obvious and won't require too much time to diagnose.

---

I'm really not sure, when I got the rearend it had just had the gears installed in it and had a really tightly packed clutch setup in it (truck spring, CF clutches, extra friction plates rather than washers). And 4.30 gears.

Move forward 1.5 years of once a month autocross's or open track days and it was making a sharp clunk pretty often. If I shifted fast enough it wouldn't do it, but if I shifted lazy and let the clutch out fast it really made a kind of a crack sound.

When I took it apart after I did the IRS swap I found a lot of wear on the axle splines as well, pretty much everything in the rear end had a lot of play to it. I don't treat the car very nicely at the track I also broke 2 stock rear swaybars, and the first open track day after the IRS swap I bent a rear tie-rod. Held up good now that I beefed up the parts that failed, haha.

--------------------
89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi

posted                             

So finally got underneath the car and the u joints are solid and tight at the rear end but there is a little bit of up and down movement at the rear of the tranny. I have a feeling that might be my mount because the whole tail of the tranny moves with the drive shaft.

Also when I twist the drive shaft it has a lot of play and you can hear that the backlash is way off on the gears. It makes a clunk each way I twist the ds.

So I'm guessing I will probably install new gears or just reshim the carrier to set proper backlash then I'll touch base again. May be quite a while before I get to doing that.

I'll pull the driveshaft and check the ujoints at the yoke.

Thanks for the tips on where to look.

quote:

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Originally posted by Blind:

quote:

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Originally posted by 90FoX:
I was thinking it was maybe a terrible backlash setting on the gears. I'll try to check the ujoints and bolts at pinion flange. I hope it's not the clutch. I don't want to pull this tranny. I just got the sumabitch back running.

BTW there are no sounds when the car is in neutral. Hopefully I can have it up in the air tomorrow night.

How did you break the crush sleeve? Over tightening it?

Haven't tested to see if it makes the sound when i let off the throttle or step on the throttle. I'll check next time I take her out. I hope that's not the case. I recently replaced a pinion seal and I tightened the pinion flange bolt to about 24 in lbs rolling resistance. I forget the exact number but it was close to this.

If it is the gears then I'll just pick up some FRPP 3.73's. I had these richmond gears in there for years and I'm sick and tired of the whine. (Richmond are known to whine a lot)


I'll touch base here after I take a look. Hopefully it's obvious and won't require too much time to diagnose.

---

I'm really not sure, when I got the rearend it had just had the gears installed in it and had a really tightly packed clutch setup in it (truck spring, CF clutches, extra friction plates rather than washers). And 4.30 gears.

Move forward 1.5 years of once a month autocross's or open track days and it was making a sharp clunk pretty often. If I shifted fast enough it wouldn't do it, but if I shifted lazy and let the clutch out fast it really made a kind of a crack sound.

When I took it apart after I did the IRS swap I found a lot of wear on the axle splines as well, pretty much everything in the rear end had a lot of play to it. I don't treat the car very nicely at the track I also broke 2 stock rear swaybars, and the first open track day after the IRS swap I bent a rear tie-rod. Held up good now that I beefed up the parts that failed, haha.

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