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Transmission cleaning


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#1 Dadddio

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Posted 10 January 2017 - 11:46 AM

I am in the process of replacing the input shafts bearing and countershaft bearings in my 5 spd.
My question is can I clean the gears and syncrose while I have the case split.
They are pretty nasty....sat for 20 years.
What could I clean it with?
Could i use brake cleaner?
Thanks

#2 Nelsonian

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Posted 10 January 2017 - 11:51 AM

Evaporust is a good starting point. It is safe on all metals and hands body as well as environment.
Nelsonian, San Diego, CA.

#3 Dadddio

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Posted 10 January 2017 - 12:16 PM

Thanks Nelsonian.
It's not rusty at all.
It sat empty and the oil that was there has kinda turned to a thick sludge.

#4 JoeK

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Posted 12 January 2017 - 08:00 PM

Paint thinner works pretty well

1971 240Z - LS1 swap in progress. Just need to: get wheels, drop the car from the rotiserrie, install the motor and trans, rebuild my dash, put in a new interior plus a few more odds and ends (about $10k in incidentals). Should be on the road before my 5 year old heads off to college.


#5 grannyknot

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Posted 13 January 2017 - 04:04 AM

Spray can carb cleaner, paint thinner, Varsol, (just not water based cleaners) and a old tooth brush, blow it out after with compressed air, then oil it again. If you are not completely disassembling everything and feel there is still gunk that you didn't get you can run ATF as the tranny fluid for a day, then drain and fill with proper oil. ATF has alot of detergents and will scrub everything nicely, just don't push it, no hard shifts.



#6 Dadddio

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Posted 13 January 2017 - 04:27 AM

Thanks for the input.
I ended up using 50/50 ATF and diesel fuel.
I figured the detergents in the ATF and oil in the diesel would work well together.
Seems to have cleaned very good.
I still may run some ATF through it anyway.
Thanks,
Chris




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