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1994.5 - 1997 7.3L Power Stroke Diesel  

Zf5 leaking/crack inside bell

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Old May 11, 2021 | 02:37 PM
  #1  
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Zf5 leaking/crack inside bell

Driving my truck today, the trans was whining, almost sounded like a supercharger lol, when I parked it for a half hour it puked out all the trans fluid.
so I opened the cover under the bell and behind the clutch and flywheel, there is a crack into the resiovior, ie: draining all of my fluid.

it almost looks like a plug or plate in that spot but it looked fixed to the housing. Can anyone help as to why or what did it. I’m gonna end up dropping the trans and investigating more in the next week. Either I diagnose it and try to get it welded or I’m shopping for a new ZF5

thanks guys
 
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Old May 11, 2021 | 05:18 PM
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Thats strange. You should try and snap a picture for us. Never heard of it doing that before.
 
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Old May 11, 2021 | 05:26 PM
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Originally Posted by Edgethis
Thats strange. You should try and snap a picture for us. Never heard of it doing that before.
sure thing, give me a minute.
 
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Old May 11, 2021 | 06:52 PM
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Originally Posted by Edgethis
Thats strange. You should try and snap a picture for us. Never heard of it doing that before.


this is looking inside the cover, behind the clutch and flywheel, on the trans. Sorry if it’s hard to understand where it’s at, it’s a weird spot

the input shaft is right above it
 
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Old May 11, 2021 | 06:57 PM
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Thats really odd. Seems like it was struck from behind. Not sure what's exactly behind that spot.

Definitely doesn't look good. Epoxy might work for a but unless something on the other side is flopping around.
 
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Old May 11, 2021 | 07:00 PM
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Originally Posted by Edgethis
Thats really odd. Seems like it was struck from behind. Not sure what's exactly behind that spot.

Definitely doesn't look good. Epoxy might work for a but unless something on the other side is flopping around.

yea that’s what I was thinking but I’m not too sure what the internals are like so I’m not sure what to expect.
 
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Old May 11, 2021 | 11:46 PM
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If it sounded like a blower, you have massive internal damage. BTDT when I rebuilt mine. Below the input is the counter shaft, someone could have gone in there before and failed to install something properly. OR could have seated the bearing race too hard and fractured the case.

Clutch pedal up and in neutral still spins the input shaft and the counter shaft. I would not start nor run that truck at all to limit the internal damage as it will not hold any ATF.
 
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Old May 12, 2021 | 09:16 AM
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Time for a new transmission, or a new front case and a rebuild. Either way $$
 
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Old May 12, 2021 | 11:43 PM
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Originally Posted by nateairman
Time for a new transmission, or a new front case and a rebuild. Either way $$


Yessir. $$$.
 
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