PerformanceTrucks.net Forums - Another 4L80E Rebuild Thread

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Another 4L80E Rebuild Thread

... before I start I would like to get this out of the way. I am using blown3qtr's thread for tips and tricks...

https://www.performancetrucks.net/fo...d.php?t=396429

OK, you can see disassembly of a 4L80E on blown3qtr's thread but I have a few more pics and questions...

Jig I made up for my engine stand... thinking about making these for a part time job:D

http://i190.photobucket.com/albums/z...80E/4L80E1.jpg

http://i190.photobucket.com/albums/z...80E/4L80E2.jpg

http://i190.photobucket.com/albums/z...80E/4L80E3.jpg

Some check ball wear... pro's, this OK?

http://i190.photobucket.com/albums/z...80E/4L80E4.jpg

http://i190.photobucket.com/albums/z...80E/4L80E5.jpg

Bushing wear looks good, eh? (BTW, others look no worse)

http://i190.photobucket.com/albums/z...80E/4L80E6.jpg

http://i190.photobucket.com/albums/z...80E/4L80E7.jpg

http://i190.photobucket.com/albums/z...80E/4L80E8.jpg

http://i190.photobucket.com/albums/z...0E/4L80E12.jpg

Intermediate clutch... little action on the steels... frictions look good.

http://i190.photobucket.com/albums/z...80E/4L80E9.jpg

Collection of "dirt" on the valve body...

http://i190.photobucket.com/albums/z...0E/4L80E10.jpg

Work area... anyone got any recommendations for something to wipe with that has little to no lint? Costco terry towels are the worst...

http://i190.photobucket.com/albums/z...0E/4L80E11.jpg

More pics and progress after I get some parts :)

Bill :)

Go buy a big ol' 12-pack of brake cleaner. Rinse everything and then blow out with compressed air fed through a moisture trap. Rags just shed lint like you've already noticed.

The internals look very good.

That checkball wear that you are looking for will be on the separator plate, not the case. The only time the checkball hits the case is on a disengagement, or "exhaust" of a clutch pack - and there not much pressure behind that. When a clutch pack engages you have a surge of fluid under line pressure impacting the checkball with the seat in the separator plate. That's what to check for wear.

Nice choice of brew, I'd even say "flawless".

Lookin good, Bill!

I like your tranny holder. Hell, I would have bought one from ya. They charge too damn much for those things.

Quote:

Originally Posted by blown3qtr (Post 3750580)

Lookin good, Bill!

I like your tranny holder. Hell, I would have bought one from ya. They charge too damn much for those things.

Thanks bro... your thread has been an inspiration... really. Transmissions have been a black box in my mind... I got time and I want to learn. We'll see how it works out for me. I went out and bought a nice 4L80E... and also have purchased everything except convertor for a total swap. I aquired a 4L60E with no known history for nothing. I don't have a vehicle, CURRENTLY, requiring a transmission. So, I like to tinker...something to keep the mind busy:D

... and Thanks James... Newcastle hits the spot... when I can't have a micro brew. Alaskan Amber is DA BOMB!

grippy, it's all good bro... havin fun:D

Bill :cheers:

Well, looks good so far. Plus your taste in beer is good too.

Quick Update...

... got all my parts in from Vince at FLT including my 300M shaft and PI Vig 9.5" 3200 stall verter! Big thanks to Vince and Chuck at FLT and Terry at Precision Industries!

I completed my valve body with the Transgo HD2 kit... just a tiny bit more drilling on the 4L80E than the 4L60E... but real simple :) I had soaked my valvebody several times and carefully picked at the "sediment" in the bottom of the passages. This actually took considerable time to clean. It makes since that the valve body hangs upside down normally and some passages get buildup that requires soak and pick... soak and pick. But then again I don't have a 200F solvent spray steamer cleaner either. No matter... just took a few extra Newcastles :D

Any way a few more pics :D

Pump is coming apart... and documenting bushing health :)

http://i190.photobucket.com/albums/z...0E/4L80E14.jpg

http://i190.photobucket.com/albums/z...0E/4L80E15.jpg

... other misc parts getting disassembled and ready for a kersosene bath :D

http://i190.photobucket.com/albums/z...0E/4L80E16.jpg

http://i190.photobucket.com/albums/z...0E/4L80E17.jpg

http://i190.photobucket.com/albums/z...0E/4L80E18.jpg

... and finally my Harbor Freight 20 gallon parts cleaner loaded up :)

http://i190.photobucket.com/albums/z...0E/4L80E20.jpg

More to come,
Bill :)

Can't say anything about the tranny, don't really know what I'm looking at. But that is a nice floor............. :secret2:

If you need pic's of ANYTHING...let me know. I took pic's of every single bolt removal and every step along the way. (literally 100's of pic's).