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#1
06-15-2006, 10:47 PM
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rear axle leaking
im leaking some fluid from my pinion area, not sure what that means, is there a gasket in there? or is it because the car is leaning downhill? the car has been sitting for like a month and a found a good amount of fluid under it, any suggestions??? other than buying a new posi unit/axle.
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463 Stroker Kit. ross pistons. h beam rods. eagle crank. 62 heads 72cc, port matched Performer RPM-850DP Auburn- 3.55 gear CC HR custom grind |
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#2
06-16-2006, 02:34 AM
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pinion seal leaking
This is a pretty common leak point.. You can replace the seal, but it requires you to pull the pinion gear, which will require you to set the gear lash..
I don't think its that hard, but people are usually intimidated by it, because if you don't set the lash correctly you will turn the gears into boat anchors in about 100 miles. Probably best to have a shop do it.. they'll be done in 1-2 hours, and it will be over. Fred |
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#3
06-16-2006, 11:15 AM
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Fred,
why would he need to pull the pinion? i have always believed that the pinion seal could be replaced without that step. david |
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#4
06-16-2006, 11:30 AM
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i've replaced many over the years and just retorqued the nut and sent them out the door. there's a small chance the pinion will change position on the ring gear, but in my experience i've never seen one cause a problem un less the diff was run without oil.
mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#5
06-16-2006, 11:45 AM
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so remove the pinion, replace the seal, and tork it down? Heres a little info i should add, about 4 months ago, i removed the axle i opened it up just to see what was going on in there cause the car had been sitting for like 5-6 yrs maybe more, and rempved the pinion then snd the gears were moved around and stuff..... should i get it checked for lash??or w/e that thing is..
__________________
463 Stroker Kit. ross pistons. h beam rods. eagle crank. 62 heads 72cc, port matched Performer RPM-850DP Auburn- 3.55 gear CC HR custom grind |
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#6
06-16-2006, 12:37 PM
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so clarify the above, you had the pinion yoke off of the diff recently?
or did you just pull the cover off of the rear? the above typos, make it just tough enough to read i want some clarification. mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#7
06-16-2006, 01:22 PM
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oops, well to clarrify i removed the entire 10 bolt from the car. opened the cover, removed one of the axles (out of curiosity), and took the pinion off while the 10 bolt was out of the car . while one of the axles were out i started to play around with the gears, with the pinion off, i was curious to taking the gears off but i knew it would lead to a problem because i would have to take it to a shop for lash and all that good stuff. so then i put it back together as it was and through it back on the firebird and now im leaking. Hope it make sense this time.
__________________
463 Stroker Kit. ross pistons. h beam rods. eagle crank. 62 heads 72cc, port matched Performer RPM-850DP Auburn- 3.55 gear CC HR custom grind |
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#8
06-16-2006, 03:15 PM
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when you disturb the pinion position, particularly with the carrier out, that means you should have changed the seal and crush sleeve. That is why it is leaking now. no reason ever to pull out the carrier unless a bearing is bad or you are doing a gear change.
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#9
06-16-2006, 03:23 PM
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so i need to get the crush sleeve re-done and put a new seal?, hmm less money in my pocket, maybe i should go look for a posi unit somehwhere.
__________________
463 Stroker Kit. ross pistons. h beam rods. eagle crank. 62 heads 72cc, port matched Performer RPM-850DP Auburn- 3.55 gear CC HR custom grind |
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#10
06-18-2006, 11:11 PM
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Quote:
this sounds like a case of curiosity killed the diff. engineer's advice above is sound. at this point it'd make sense to rebearing the diff as preventative maintenance when it's apart. the carrier needs to come out to do the crush sleeve right. mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#11
06-19-2006, 01:30 AM
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yea i was thinking that, do you know what i can look forward to paying? that way i can try to work overtime and pay it off.
__________________
463 Stroker Kit. ross pistons. h beam rods. eagle crank. 62 heads 72cc, port matched Performer RPM-850DP Auburn- 3.55 gear CC HR custom grind |
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