4l60e oil pump bushing worn - LS1TECH

Go Back   LS1TECH > CHASSIS, SUSPENSION, APPEARANCE > Automatic Transmission
Sign in using an external account
Register Forgot Password?
Search


Automatic Transmission
4L60E | 4L80E | TH350 | TH400 | TH2004R | Powerglide | Converters | Shift Kits
Sponsored by
PerformaBuilt Transmissions


4l60e oil pump bushing worn

Reply
 
Thread Tools Search this Thread
Old 08-19-2012, 05:42 PM   #1
Registered User
 
Trader Rating: 0
Join Date: Aug 2012
Posts: 3
Default 4l60e oil pump bushing worn

So I was driving down the road when I noticed that I was in 2nd gear cruising 50mph. haven't seen 3rd or 4th since. No symptoms prior to the incident. Fluid level and condition ok. No codes no cel. Pulled trans expecting to find burnt 3/4 pack but found plenty of clutch remaining. Found that the oil pump bushing had been worn away resulting in a severed lower nylon oring on input shaft. I plan to replace the nylon seals, input housing and shaft, oil pump bushings and associated gaskets. My question is this, should I be looking for the cause of the worn bushing or is this a normal failure of these trans? End play is within specs, everything seems fine.
gmworldclasstech is offline   Reply With Quote
Old 08-19-2012, 07:28 PM   #2
Moderator
 
mrvedit's Avatar
 
Trader Rating: 0
Join Date: Aug 2010
Location: Ann Arbor, MI
Posts: 4,391
Send a message via AIM to mrvedit
Default

Quote:
Originally Posted by gmworldclasstech View Post
So I was driving down the road when I noticed that I was in 2nd gear cruising 50mph. haven't seen 3rd or 4th since. No symptoms prior to the incident. Fluid level and condition ok. No codes no cel. Pulled trans expecting to find burnt 3/4 pack but found plenty of clutch remaining. Found that the oil pump bushing had been worn away resulting in a severed lower nylon oring on input shaft. I plan to replace the nylon seals, input housing and shaft, oil pump bushings and associated gaskets. My question is this, should I be looking for the cause of the worn bushing or is this a normal failure of these trans? End play is within specs, everything seems fine.
My understanding is that a misaligned stator shaft to oil pump housing will cause this problem. The stator shaft is pressed into the housing and if even a sliver of metal gets between the two, there will be a problem. The most likely cause of this was a previous rebuild.
mrvedit is online now   Reply With Quote
Old 08-19-2012, 07:28 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Prothane front Control Arm Bushings Anybody LS1MUNN Suspension & Brakes 7 04-16-2015 09:42 AM
which LS2 pilot bearing/bushing 3rdCoastPowerSports Manual Transmission 5 07-16-2012 02:51 PM
Bad pilot bushing problem fixed. Valuable tip inside. wrd1972 Manual Transmission 7 04-04-2012 04:37 PM
can you sleave the input shaft 3rdCoastPowerSports Manual Transmission 8 01-08-2012 09:34 PM
Tranny help!!! bad input shaft bearing? dave70 Manual Transmission 16 02-03-2010 05:37 PM


Tags
4l60e, al4, burnt, bushing, bushings, fluid, input, loctite, oil, oring, pump, shaft, trans, transmission, worn


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 07:31 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details