TH700R4 rebuild.

[Gilles]

As I had rebuilt with success my own TH700R4 a friend of mine asked me to rebuild one for him. It's a 85 TH700 from a Corvette that will go on a 32 Brookville roadster project. I ordered a Transtar rebuild kit and a Transgo kit. The transmission is now in pieces in my garage. I follow the procedures of an ATSG  manual (like I did before). I found that the band is worn, making the housing where it apply damaged a little by the rivets. So this part needs to be replaced.
I checked the planetary gear set pinion end play. One pinion play is a little more than  the .024" maximum authorized by the book. I think the planetarys gear sets need to be replaced too.
At this time I didn't take appart the pump so I don't know his condition. Maybe it can be replaced by a new one with the improved design? Or the original suffisant? The engine behind this transmission will be the stock 350 TPI.
Any advice would be appreciated.


Gilles

[Crosley.In.AZ]

1..... IF this transmission is from a corvette , it will NOT have a bolt on area for the tranny mount on the main transmission case.

2.... RE:pump, original design pumps work well. 7 vanes are OK... 10 vane upgrade IF you desire.... not needed in light duty use

3.....RE: planetary unit , use it , run it , it's OK if the side washers are there and NO wear into the main planetary casting.

4.... usually the transmission is behind the engine in the USA.  

5...RE: drum where the band applies.  VERY important that this area is flat for band to properly apply/hold the drum

As I had rebuilt with success my own TH700R4 a friend of mine asked me to rebuild one for him. It's a 85 TH700 from a Corvette that will go on a 32 Brookville roadster project. I ordered a Transtar rebuild kit and a Transgo kit. The transmission is now in pieces in my garage. I follow the procedures of an ATSG  manual (like I did before). I found that the band is worn, making the housing where it apply damaged a little by the rivets. So this part needs to be replaced.
I checked the planetary gear set pinion end play. One pinion play is a little more than  the .024" maximum authorized by the book. I think the planetarys gear sets need to be replaced too.
At this time I didn't take appart the pump so I don't know his condition. Maybe it can be replaced by a new one with the improved design? Or the original suffisant? The engine behind this transmission will be the stock 350 TPI.
Any advice would be appreciated.


Gilles

[Gilles]

Thanks Tony for your advice. It means I can replace only the big drum and keep the pump and planetarys gerar sets.

4.... usually the transmission is behind the engine in the USA.  

Sure I need to improve my English. I will start another English course in september, 4 hours a week until december, 50 hours in total. This way I will be able to discuss more easily in this board! I was in England last week, the practise is harder than to write or read!

Gilles

[Crosley.In.AZ]

I work with many non english speaking co-workers 5 days a week.  

The difference here is you WANT to  learn to communicate better in English.  The Mexican nationals do not want to learn

[tomslik]

I work with many non english speaking co-workers 5 days a week.  

The difference here is you WANT to  learn to communicate better in English.  The Mexican nationals do not want to learn

plus, they want to make US speek their language.


i know cervesa and taco and that's about all i need to know....