Rb25 output shaft seal keeps leaking - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ANVIL · 05-07-2019, 08:29 PM

Rb25 trans keeps leaking at the output shaft seal. Ive replaced the seal twice in a year, less than 1k miles. Parked my car again today to notice its leaking again. First time i used a napa seal, this last time i used an OEM seal and its been less than 500 miles. What can cause repeated failure of this seal? Any tips or tricks? I uninstall with a prybar and tap new seal in flush.

feito · 05-07-2019, 10:01 PM

have you checked your tranny breather?

ANVIL · 05-08-2019, 08:34 AM

Quote:

Originally Posted by feito

have you checked your tranny breather?

Have not yet. Just saw the leak and got irritated. Ill take a look under it later today. Check that its not clogged right

jedi03 · 05-08-2019, 09:09 AM

also make sure its not overfilled and last check for play in the tailshaft (wiggle the driveshaft and look for abnormal movement

*brndck* · 05-08-2019, 04:26 PM

+1 for play in the driveshaft or play in the output shaft of the transmission

05-07-2019, 08:29 PM	#1
ANVIL Zilvia FREAK! Join Date: Apr 2005 Location: Anchorage, Alaska Posts: 1,173 Trader Rating: (8) Feedback Score: 8 reviews	Rb25 output shaft seal keeps leaking Rb25 trans keeps leaking at the output shaft seal. Ive replaced the seal twice in a year, less than 1k miles. Parked my car again today to notice its leaking again. First time i used a napa seal, this last time i used an OEM seal and its been less than 500 miles. What can cause repeated failure of this seal? Any tips or tricks? I uninstall with a prybar and tap new seal in flush.

05-07-2019, 10:01 PM	#2
feito Nissanaholic! Join Date: May 2007 Location: Texas Posts: 1,948 Trader Rating: (1) Feedback Score: 1 reviews	have you checked your tranny breather? __________________ Tuners are big bullies

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05-08-2019, 09:09 AM	#4
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,784 Trader Rating: (8) Feedback Score: 8 reviews	also make sure its not overfilled and last check for play in the tailshaft (wiggle the driveshaft and look for abnormal movement