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> What's causing this mess?, 1973 2.0 with 90,000 miles.
DdHavtech
post Aug 29 2023, 09:05 AM
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I think I know the answer - but seems a bit excessive.

The shifter cover was just removed and cleaned. Doesn't seem like the shift seal is the problem.

Thanks

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Superhawk996
post Aug 30 2023, 08:14 AM
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Answer to the thread’s title question:
lack of maintenance (IMG:style_emoticons/default/lol-2.gif)
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76-914
post Aug 30 2023, 08:25 AM
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That Cv gasket is gone. Usually they will leave a grease line about the undercarriage 90 degrees out from the gasket, which I don't see. I'd inspect it anyway. (IMG:style_emoticons/default/beerchug.gif)
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Superhawk996
post Aug 30 2023, 08:27 AM
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All suggestions above are good - especially the smell test. Need to know if it’s gear oil or engine oil.

There is a lot of oil residue up high on the tail end of the trans. That usually isn’t from engine oil.

I’ve seen this occur when the transmission vent is blocked. Internal pressure inside the trans pushes gear oil out everywhere - input shaft seals, differential carrier seals, speedo gear, gear shift seal, etc., anywhere it can relieve pressure.

Can also occur when the trans is overfilled. Sort of hard to overfill if done properly but I’ve seen them overfilled when filled on the bench or garage floor.
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jhynesrockmtn
post Aug 30 2023, 08:33 AM
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My 70 looked like that and really spewed fluid out once warm. Dropped engine. Both the output shaft seal on the trans and RMS were leaking. Did those and new clutch. Much better now. I won't claim it doesn't leak at all :-)
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JeffBowlsby
post Aug 30 2023, 09:24 AM
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QUOTE(technicalninja @ Aug 30 2023, 06:13 AM) *

QUOTE(Front yard mechanic @ Aug 30 2023, 06:36 AM) *

Coin operated car wash?wtf is that


Where I'm at, if the owner of the self-serve car wash saw you cleaning the undercarriage or individual greasy parts, they will have a SHIT FIT.

You will have a problem on your hands...


Coin ops car washes, in fact traditional drive through car washes, car/truck repair garages and even commercial parking garages are required to have sand/oil separator tanks in their drainage system so this should not be a technical problem. These function similar to septic tanks to contain the contaminant and prevent it from entering the public drainage system.

Individual coin op car wash owners may get excited if you leave chunks of grease on the slab, but they are protected with their sand/oil separator tanks. Just wash the debris into the drain.
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technicalninja
post Aug 30 2023, 09:45 AM
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QUOTE(JeffBowlsby @ Aug 30 2023, 10:24 AM) *

QUOTE(technicalninja @ Aug 30 2023, 06:13 AM) *

QUOTE(Front yard mechanic @ Aug 30 2023, 06:36 AM) *

Coin operated car wash?wtf is that


Where I'm at, if the owner of the self-serve car wash saw you cleaning the undercarriage or individual greasy parts, they will have a SHIT FIT.

You will have a problem on your hands...


Coin ops car washes, in fact traditional drive through car washes, car/truck repair garages and even commercial parking garages are required to have sand/oil separator tanks in their drainage system so this should not be a technical problem. These function similar to septic tanks to contain the contaminant and prevent it from entering the public drainage system.

Individual coin op car wash owners may get excited if you leave chunks of grease on the slab, but they are protected with their sand/oil separator tanks. Just wash the debris into the drain.


In California!
I've worked in 20+ shops over the years. Only 2 had such separators.

I AGREE with what Jeff has posted, It shouldn't matter!

The coin operated carwashes I've been to lately now have signs in the bays "no hand washing" and the owners have gotten far more "controlling" in the last decade.
Every time I've cleaned an engine compartment during the day, I have an argument with the owner who has NEVER been at his car wash at midnight.
Just the scuzzy drug dealers...
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rhodyguy
post Aug 30 2023, 02:18 PM
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OP, do you have to add engine oil on a regular basis? If you should have to deal with transmission lube, loosen the fill (upper one) plug first.
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Rusty
post Aug 30 2023, 07:17 PM
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That's pretty grungy.

Dr Evil used to recommend this for cleaning transmission cases: https://www.dollartree.com/las-totally-awes...lls-32oz/985190

No pressure washing though. You don't want water forced past the seals and into the gearbox.
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GregAmy
post Aug 30 2023, 08:38 PM
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I'm still waiting for the OP to let us know if he's brave enough to taste the mess.

(I do it all the time, especially with stuff I swipe off the ground. My friends recoil in horror when I do that, only to be grateful when I tell them it's justwater from their A/C evaporator...wusses...the tongue knows)
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930cabman
post Aug 31 2023, 05:00 AM
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QUOTE(GregAmy @ Aug 30 2023, 08:38 PM) *

I'm still waiting for the OP to let us know if he's brave enough to taste the mess.

(I do it all the time, especially with stuff I swipe off the ground. My friends recoil in horror when I do that, only to be grateful when I tell them it's justwater from their A/C evaporator...wusses...the tongue knows)


Not me, thank you.

The smell test should work just fine, gear oil has a very distinctive odor
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