A question for someone older than Crosley

GPster · January 10, 2006, 04:36:08 PM

On the old castiron Powerglides ('51 - '54) what is the reason for the ATF cooler in the lower radiator hose? My '53 moved under it's own power when it was still a car. It has even moved under it's own power in its latest truck disguise after it had been under water during the hurrican of 2004. I had to remove the stock cooler because of water leaking externally. First I just had a cooler under the cab and then I went to the trouble of installing lines and in front of the radiator. To check my installation I put a gasline filetr on it to make sure I knew the ins and outs of the flow and see if there was a lot of sediment in the fluid (this thing has no pan and no filter on it,stock). Today I put the rear end of this creation up on jackstands and let it run for about an hour. I had it in all the gears (low and drive) and reverse and let it spin the wheels most of that time. If there's any flow to and through the filter and cooler it's minimal and there certainly no heat. The fluid level in the transmission is up to snuff and the tires spin in the correct direction for the gear and only minimal in neutral. You can tell of the egagement of the gears by the change of idle speed of the engine. Years ago ('74?) I had been told by an old time automatic transmission mechanic that the cooler in the bottom of the radiator was to transfer heat to the ATF to increase it's viscosity. That may have been an idea closer to the technology of this thing. Any ideas? GPster

Bob K · January 10, 2006, 05:09:25 PM

There ain't nobody older than Crosley !!!!!!!!!!!!!!!!

Well maybe one guy.

B

B

GPster · January 10, 2006, 05:32:25 PM

Quote from: "Bob K"There ain't nobody older than Crosley !!!!!!!!!!!!!!!!Well maybe one guy.B B

That was meant as a play on (with?) words. The cars were manufactured in the same period as I looking at but Tony probably wasn't dialed into the transmission technology at that time. GPster

HotRodLadyCrusr · January 10, 2006, 06:28:00 PM

Quote from: "Bob K"There ain't nobody older than Crosley !!!!!!!!!!!!!!!!

Well maybe one guy.

B B

an older then dirt comment coming from a dude older then God

xoxoxox

phat rat · January 10, 2006, 06:36:55 PM

Quote from: "Bob K"There ain't nobody older than Crosley !!!!!!!!!!!!!!!!

Well maybe one guy.

B B

YOU?

?

Crosley.In.AZ · January 10, 2006, 07:24:48 PM

Quote from: "phat rat"
Quote from: "Bob K"There ain't nobody older than Crosley !!!!!!!!!!!!!!!!

Well maybe one guy.

B B

YOU??

Gnomes are immortal

The tranny will not build any heat sitting at idle with tires spinning.

The unit you speak of in the radiator water is a heat exchanger. It warms or cools the fluid as needed. Same thing is done in modern cars. The engine radiator warms the fluid in cold climates to reduce shift complaints .

GPster · January 10, 2006, 09:41:17 PM

Quote from: "Crosley"The tranny will not build any heat sitting at idle with tires spinning.

Thanks for that realization but shouldn't there be flow through the cooling lines or is that a product of the amount of work being done too. GPster

Crosley.In.AZ · January 10, 2006, 09:53:40 PM

Quote from: "GPster"
Quote from: "Crosley"The tranny will not build any heat sitting at idle with tires spinning.
Thanks for that realization but shouldn't there be flow through the cooling lines or is that a product of the amount of work being done too. GPster

should be flow , perhaps clogged?

Bruce Dorsi · January 10, 2006, 11:13:16 PM

Quote from: "GPster"If there's any flow to and through the filter and cooler it's minimal and there certainly no heat.

I may be wrong, but I would guess that the volume of flow would be proportional to pump rpm.

At idle speed, the pump is probably not moving much fluid.

GPster · January 11, 2006, 03:23:30 PM

I write my stuff down here to keep from keeping a scrap book. Today I put a length of clear plastic line in the trans cooler line so I could see if there was flow and what direction it was going. With the truck up on the jackstands I put it in gear and pryed on the emergency brake cables so that the wheels slowed down and then stopped. I could tell that this type of strain had not happened with this trans in a long time because I stalled the engine at first. After playing with it for a while and assuring myself of the direction of fluid flow (which I had wrong) I took out the clear line and re-installed the in-line filter. I let it run for a while in gear with the wheels blocked and it seemed to start bringing all sorts of junk to the surface. It even bubble stuff up the dipstick tube. The fluid isn't even close to that nice red color but I think I'll play with filters and new fluid for a while. Later GPster