sr20 in s14 transmission dust boot issue - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Catch240 · 06-07-2011, 10:40 PM

Ok. So I recently installed a redtop sr into my s14. I forgot to remove the dust boot from either the driveshaft or transmission. I drove the car with them still on for about 2.5 miles before I figured out what was going on and headed back home. I removed the dust boot on the trans and the dust cover on the driveshaft.

My problem is that I am still having a grinding/screeching noise coming from the rear section of the trans, where the slip yoke fits up. Im wondering if anybody else has had this problem.

Im wondering if I ruined something in the tailsection of the transmission or if the problem could be the driveshaft going bad. A lot of heat was cause from the two dust covers rubbing.

thanks for any help. I did search just couldnt find anybody with the exact problem.

codyace · 06-07-2011, 11:12 PM

you don't need that big round 'dust seal'...only the rear trans seal is important.

grinding? have you checked for bad U joints or something rubbing against the driveshaft?

Catch240 · 06-07-2011, 11:31 PM

the big dust boot is removed so is the little metal shield on the driveshaft. It doesnt look like anything is rubbbing, but it does sound like it.

The noise will go away and come back, but is pretty constant at low speeds.

Havent checked for bad U joint on the driveshaft yet, will do that tomorrow. Not really sure how to check. How much lateral movement is acceptable?

Catch240 · 06-08-2011, 04:22 PM

to the top...
very little play in u joint
anybody with the same issue?

codyace · 06-08-2011, 06:56 PM

not to much an issue, you'll know the u joint being bad if you have servere play, or if you remove the shaft you can feel it being 'notchy' sort to speak.

E brake cables arnen't laying on the shaft are they? dust shields rubbing anywhere?

-CA

Catch240 · 06-08-2011, 10:04 PM

nope nothing is rubbing.

are there any bearing in the rear section of the trans. It sounds like something in the tail section (bearing) is bad and scraping?

Well Ive bought a spare sr trans and spec stage 3 clutch in hopes of fixing the problem. I guess ill find out in a couple of weeks where the problem was.

codyace · 06-08-2011, 11:10 PM

Main Shaft bearings are known to fail in the sR transmissions, so that could be it...it's usualy the first main bearing though, near where the bellhousing and case meet up. Never had a rear one fail on me, but that's not o say it's not impossible hehe.

Catch240 · 06-09-2011, 10:15 AM

Quote:

Originally Posted by codyace

Main Shaft bearings are known to fail in the sR transmissions, so that could be it...it's usualy the first main bearing though, near where the bellhousing and case meet up. Never had a rear one fail on me, but that's not o say it's not impossible hehe.

can I get to the rear bearing without dropping the whole trans

06-07-2011, 10:40 PM	#1
Catch240 Zilvia Member Join Date: Dec 2006 Location: Delray Beach, FL Age: 39 Posts: 187 Trader Rating: (5) Feedback Score: 5 reviews	sr20 in s14 transmission dust boot issue Ok. So I recently installed a redtop sr into my s14. I forgot to remove the dust boot from either the driveshaft or transmission. I drove the car with them still on for about 2.5 miles before I figured out what was going on and headed back home. I removed the dust boot on the trans and the dust cover on the driveshaft. My problem is that I am still having a grinding/screeching noise coming from the rear section of the trans, where the slip yoke fits up. Im wondering if anybody else has had this problem. Im wondering if I ruined something in the tailsection of the transmission or if the problem could be the driveshaft going bad. A lot of heat was cause from the two dust covers rubbing. thanks for any help. I did search just couldnt find anybody with the exact problem.

06-07-2011, 11:12 PM	#2
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	you don't need that big round 'dust seal'...only the rear trans seal is important. grinding? have you checked for bad U joints or something rubbing against the driveshaft? __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

06-08-2011, 06:56 PM	#5
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	not to much an issue, you'll know the u joint being bad if you have servere play, or if you remove the shaft you can feel it being 'notchy' sort to speak. E brake cables arnen't laying on the shaft are they? dust shields rubbing anywhere? -CA __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

06-08-2011, 11:10 PM	#7
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	Main Shaft bearings are known to fail in the sR transmissions, so that could be it...it's usualy the first main bearing though, near where the bellhousing and case meet up. Never had a rear one fail on me, but that's not o say it's not impossible hehe. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

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06-07-2011, 11:31 PM	#3
Catch240 Zilvia Member Join Date: Dec 2006 Location: Delray Beach, FL Age: 39 Posts: 187 Trader Rating: (5) Feedback Score: 5 reviews	the big dust boot is removed so is the little metal shield on the driveshaft. It doesnt look like anything is rubbbing, but it does sound like it. The noise will go away and come back, but is pretty constant at low speeds. Havent checked for bad U joint on the driveshaft yet, will do that tomorrow. Not really sure how to check. How much lateral movement is acceptable?

06-08-2011, 04:22 PM	#4
Catch240 Zilvia Member Join Date: Dec 2006 Location: Delray Beach, FL Age: 39 Posts: 187 Trader Rating: (5) Feedback Score: 5 reviews	to the top... very little play in u joint anybody with the same issue?

06-08-2011, 10:04 PM	#6
Catch240 Zilvia Member Join Date: Dec 2006 Location: Delray Beach, FL Age: 39 Posts: 187 Trader Rating: (5) Feedback Score: 5 reviews	nope nothing is rubbing. are there any bearing in the rear section of the trans. It sounds like something in the tail section (bearing) is bad and scraping? Well Ive bought a spare sr trans and spec stage 3 clutch in hopes of fixing the problem. I guess ill find out in a couple of weeks where the problem was.