Quote:
Originally Posted by andy_1100
Hi Martin.
Regarding the donor tx, if you want to install it just for the time you will be rebuilding your original tx....
If it looks OK from outside, and you don't see any visible oil leaks I'd leave it as is. You can replace the o-rings on dipstick, pressure control cable and modulator valve, these are easy to replace. Pull the oil pan and inspect the condition of the oil, if it's clean then just replace the oil and filter.
I'd check the modulator valve and pressure control cable to make sure there's no vacuum leaks and I'd do it at the ends where they connnect to the engine to ensure rubber connectors are goos as well.
I can't tell you for sure, but if you have an older tx there are a number of upgrades to be done, i think B2 piston is one of them.
Good luck
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Thanks Andy
The donor Transmission looks good. The oil was clean and the seller was confirming that trans worked well before removed. So I could be lucky.
I'll probably get it in sealing at the exterior and done. Not sure if it is worth pulling the primary pump and seal it...look if the pump looks fine?
The transmission to be renovated is a 1992 722.354 , at least this is what I thought. But cleaning the old piece that came out last weekend I saw that the aluminum case was sprayed over in grayish color. They sprayed over modulator, kick down solenoid and plugs/covers...
It looks like this was a re-builder's paint job? I don't think the original trans would be spray painted.
Any hints here?
Probably it does not matter much. It all depends on the inside condition of the parts I guess. If the planetary gears and other hardware are fine it should be rebuild-able.
As the damaged transmission had a few symptoms of dysfunction I'd like to understand why it did behave like it did (before I found the steel chips and chewed up spring in the pan.)
I got a 'Precision' Banner Kit for the 722.3 ..out of interest what is inside.
And I am not very convinced that the frictions are the best available. I'd probably get Borg Warner frictions for the rebuild. I am not sure and I have no idea/experience with friction disks.
You are mentioning updates... like the B2 update... yes...where do I get these parts from?
steel plates are available too but not sure if they are needed for a rebuild
Brake bands B1 and B2 should be installed new or are the old ones typically fine?
Valve body: I think I need to open this one up and clean it from any debris/steel chips inside?
Martin