ballooning

[george beardwood]

tom
Please go to your garage stick in that thing called dial indacater in the
inspection hole of the Tranny and one on harmonic balancer and then give us
some positive results words dont do it for me as you know each GM had
indentical problems what mine are is going too be what yours is. 93000 miles
and running strong ! hot air from Can.

 

[mills2]

>George if you know anything about torque converters you should know that
>they balloon and then normally go back to their original size unless there
>is a ctastrophic failure. If you had gone to our last tech session at
>Elora you would have learned a lot about torque converters and this problem.
>
>cool off in Canada george,
>
>a fellow GMcer
>
>tom

just how much do they balloon? And is that more or less than the converter
to flexplate clearance? If it doesn't expand more than the clearance then the
only possible problem is the pressure of the converter pushing off the shaft.
the question with that is how does that compare with the pressure of a clutch
spring pac pushing the crankshaft? I am asking because it has been 25 years
since I last installed one and I don't have any of my reference books at hand.
tnx

Jim
'73 Canyon Lands
Aurora, CO & Havre, MT

 

[jim wagner]

I read an article about the Chevy 454 engines in motorhomes having rear
main seal leaks. In the article it stated that the ones that leaked were
motorhomes without a leveling system. The thought was that the convertor
ballooned while the coach was being driven up a steep ramp to level it.
This caused the crank to move. My thought is, could a change in driving
habits or leveling procedure cause a problem?
The other Jim A HAPPY GMC owner.

 

[george beardwood]

tom
I was not trying to upset you but with your tools and knowlege thought you
could get some calcalions to this subject last night i went to Mossport Race
way asked my friends top car builder wins most races he is also a machinst
(but dos not drive) there was allso a top tranny builder there and thy said
that thy have seen such bad cases of the ballooning that the bolts that hold
on the converter on were INBEDED and that it cood push on the crank and do
damage & these are only family cars hes speeking about this is from the
horse,s mouth as thy say George keeping cool in a/c garage

 

[travism]

> Dont overcool the tranny. It loves to be at 160-210 degrees or so and does
not like to run cold. Therefore if you do add a tranny cooler always have it
AFTER the radiator.

If I'm understanding you correctly as to wanting to keep the transmission in
the 160-210 range, don't you want the cooler AHEAD of the radiator? Thus the
heat exchanger in the radiator tank can warm the fluid if the cooler should
happen to get it too cool; if the cooler is installed after the radiator, it
is quite conceivable on a cold day for the oil-to-air cooler to get the
fluid TOO cold, is it not?

Travis

 

[roger black]

Tom,
This is the best advice for any motor vehicle, IMHO.

"Don't let the coach sit, drive it." At least once a week.

They are made to run, not to sit.

Roger

 

[terry doukas]

I just did a little surfing compliments of goole.com, I put in "torque
converter ballooning" and got several hits. I went to this site and did a
little reading.

http://www.atra-gears.com/crankshaft/

Just more food for thought.
>From the Desk of:
Terry Doukas
http://tadoukas.homepage.com
tadoukas