Can I block PG cooler line fittings?
 

What happens if I just block the oil circulation from the cooler? Does something break or what? My tranny guy told me that powerglide is designed so that if cooler gets filled with trash, particles etc, the tranny still works.

Original tranny case and I think it's original pump.

You circulate from the trans into the cooler and then out to the trans so, the only place the cooler can pick up any debris is thru the fluid coming into it. If you got debris that is going to create circulation problems in the cooler, you have bigger problems in the trans. If you eliminate the trans cooler, your trans temps are going to get ridiculous and your trans is not going to like that either.

Re: Can I block PG cooler line fittings?
 

maybe he meant he blocked the cooler bypass off ??

No, I meant just what I wroted on the first post. I didn't have cooler in my PG with last 150 passes, changed oil every 50 passes and it seemed to be ok. Tranny temp never got over 180F.

I have just line that goes out and then back in the case and that line has leak so I thought maybe I could just block the cooler line fittings completely.

It has to still be looped for the fluid to move if not you'll have major issues.

I got to ask why would you not want to run a cooler? Is this a car that is towed to the line with very little run time to build any type of heat? You would still want a loop for circulation purposes but that is just my opinion.

X3 you've got to loop them.

To me, looping the transmission "COOLING" lines would be the equivilent of looping the radiator hoses, it's never a good idea to take the cooler part of the equation, wheter you "THINK" you need it or not.

If your tranny is only running 180 degrees then think how cool it would be if you did have a cooler? You might not even have to change the fluid then? It for sure would last longer, it only takes a small cooler to do alot of work and IMO installing one would be, by far, one of your better investments.



JM> 2 cents, Cp

Its your decision whether or not to run a cooler, but the cooler you can keep that glide, the better. DO NOT plug the inlet and outlet. You must run a loop or you're headed for problems.

X2

What kind of problems?

I'm not kidding, please tell me what kind of problems to expect.

You will create problems with the internals as the pump will not function properly unless it was altered to allow for your flowing circuit to be eliminated.

I am not certian about a glide, but on most auto. trans. the cooler return oil is the source for lube oil in the gear train. If that is the case you would experience smoked bushings and planetaries in verry short order.

If it were to work at all there will be no lube to the gear sets that means big heat oil out the vent on to the track and some very mad racers behind you a cooler is the best investment on any trans

You're half right, half wrong, I found this with google, http://www.google.fi/search?hl=fi&so...meta=&aq=f&oq=

here it says:

http://books.google.fi/books?id=SOIY...bypass&f=false

"Externally cooled units were equipped with a cooler bypass valve, that opens when cooler pressure reaches 27psi. This fluid is bypassed directly to the lubrication circuit. In the air cooled units, the bypass valve was eliminated, directing the oil directly to the lubrication circuit"

Now the question is, what kind of cooler bypass valve my oil pump has. Original, removed or blocked.

I ended up to buy new hoses to loop the lines, but the answer to the main question is:

Yes you can block the cooler lines completely if you remove the cooler bypass valve from your oil pump.

Gee, thanks for letting me know that. 8)

Re: Can I block PG cooler line fittings?
 

me too :D

This is what you get with a weak english skills, sorry. But problem solved and it's 6 weeks for the first race! 700hp feels good on the strip after driving around all winter on ice with 60hp :D