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Print in friendly format Send this term to a friend  Bowling Green
Bowling Green, KY, is the location of the Corvette assembly plant since 1981. From 1954-1981, Corvettes were assembled in St Louis, MO.

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Re: 700R4-4L60 Build Up Part 2
Guru Newb
Joined:
2009/12/14 23:08
Posts: 2
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Quote:

PeteK wrote:

Thanks JD.
When I am done, they really are remanufactured, rather than rebuilt. Every piece I use must be new, equal to new, or restored to new. It is critical to do all bushings to maintain oil pressure and volume throughout the box. As you get closer to the center of the trans, they wear less. If the bore guage indicates less than .001 of new, I will make an exception and reuse it. Unlike an engine, the trans bushings are not manufactured to the same tight standards. Occasionally, a new bushing will come in slightly looser than a used bushing.
Anyhow, blueprinting is key.

One thing I have noticed in the ATSG manual is a lack of specs for some of things you have mentioned above. I use to work in the helicopter indistry and what I mean by this is there is not a lot of given measurments for when something is servicable (range and/or recommended/target measurment) or when it should be discarded/shimmed/etc. I've noticed you have supplied some (eg; total servo cover movement, range: .080"-.100", target: .090"). Where can I find specs for bushings, bores, shaft diameters, etc? This is done on engines but is it necessary for transmissions aswell, am I getting too carried away? I've also noticed with clutch stack ups (for example) there is a range given .040"-.063", do you try to go on the tight side, loose side, right in the middle or if it's in the range it's "good enough".

Thanks for answering my questions Pete!

Posted on: 2011/4/25 21:13
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Re: 700R4-4L60 Build Up Part 2
Guru Newb
Joined:
2009/12/14 23:08
Posts: 2
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Hey Pete getting ready to do my transmission rebuild and was wondering if you could clarify or go into more detail on some things. I have a few questions through out your build up threads so instead of PM'ing you I am going to post them incase others have similar questions...

Quote:
The new servo checkball capsule is installed carefully using a 2 1/2 inch long bolt, 3/8 inch diameter. Although the shop manual states it should be installed at 1 5/8, it is actually a pinch deeper:

[IMG]http://i161.photobucket.com/albums/t221/vrodpete/100_4916_00.jpg[/IMG]


What is the actual installed depth? ATSG says 1 5/8" as well.


Quote:
[IMG]http://i161.photobucket.com/albums/t221/vrodpete/100_4966_00.jpg[/IMG]

End play is set to approx .125" by dimpling the very center of the cap. Once set, a retaing clip from a turbo 350 is installed for extra security:


How is this end play measured/checked?

Posted on: 2011/4/11 2:58
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