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THM 125-C max line and no governor pressure

 
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bbuss2 bbuss2
User | Posts: 72 | Joined: 06/11
Posted: 01/15/12
08:07 AM

THM 125-C after rebuild seems to have max line and no governor pressure.
When the trans is run on a dynoat about 2200 RPM there is no shift and line pressure is at max pressure. I didn't see the pressure gage myself.

With governer cover and governer removed governor feed oil dosn't squirt aut of the case.
I would think governor feed oil would hie the ceiling.

Interesting couple of weeks
Last week had a 440 T4 and a 125-C.
This week a powerflite and another 125-C.

Thanks Bob  

 
440t4 440t4
Guru | Posts: 869 | Joined: 04/09
Posted: 01/15/12
01:13 PM

Maybe the wrong vb gaskets?  

 
bbuss2 bbuss2
User | Posts: 72 | Joined: 06/11
Posted: 01/15/12
05:18 PM

I could be wrong but I think there is only one set for the 125 but the auxilary body does take one of 4.

i will let you know when we find out.

Bob  

 
bbuss2 bbuss2
User | Posts: 72 | Joined: 06/11
Posted: 01/16/12
04:27 PM

From what I here the problem was with the inner pr spring.
works fine now

Bob  

 
440t4 440t4
Guru | Posts: 869 | Joined: 04/09
Posted: 01/17/12
12:10 AM

Thats a weird one.Never ran into that but i  haven't done a 125 in at least 10 years. Did you find the problem or change the vb?  

 
bbuss2 bbuss2
User | Posts: 72 | Joined: 06/11
Posted: 01/17/12
07:00 PM

This is how it works here.

1  Transmission goes to teardown.
2  After teardown it is evaluated and parts are ordered.
3  Parts are cleaned.
4  I get a pile of parts to rebuild.
5  Our valve body guy goes over the valve body.
6  I put the valve body on.
7  Trans goes to the dyno.

Sound like fun?

Bob  

 
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