Thread: 34 going up on jack stands for a while

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Originally Posted by jerry clayton

I've got one from a firebird ws6 around here somewhere ---I'll try to locate it and take some measurements and pics to email you ---- won't post any pics on here as I'm leading a one man protest about posting pics----------
besides the firebird one there are several varieties used in marine applications----look at some mercury marine stuff

Jerry, are you saying that Pontiac used a transmission fluid heat exchanger mounted in the lower radiator hose on the WS6 Firebirds? I hope that you can find it, because that's one I've never heard of before and I'm wondering why the OEM designers wouldn't have simply used the tried & true radiator HX. Just seems strange. If you find the beast and send info to Jack perhaps he can post pictures of it, unless he decides to make it a two man protest on posting pictures
Can you provide a specific reference to the marine application you're referencing, like a direct link to the web site showing the product? I'm not familiar with any boat engine using a radiator - thought they all did the once through pulling from and exhausting to the body of water they're floating in but I may well be wrong.

You were in the US Navy??????????




just kidding----Mercury used many heat exchangers on various applications plus also there were many closed systems for boats running in salt water that used heat exchangers to keep the salt out of the engine----my twin 454 bbc in my SeaRay both had a tubular oil cooler(heat exchanger) mounted down low near the oil pan--------

Originally Posted by jerry clayton

You were in the US Navy??????????
just kidding----Mercury used many heat exchangers on various applications plus also there were many closed systems for boats running in salt water that used heat exchangers to keep the salt out of the engine----my twin 454 bbc in my SeaRay both had a tubular oil cooler(heat exchanger) mounted down low near the oil pan--------

Yes, I was in US Navy Aviation, I never served on a ship, I've never owned a boat and I never will. I have seen some marine application heat exchangers but nothing that would be anywhere near small enough for the constrained spaces Jack has in his lowboy coupe. I got the impression that you were saying that there is a small, compact heat exchanger that could fit in the existing lower radiator hose and do the job while not impacting the coolant flow for the engine.

I'm not adding any value to Jack's quest here, I was just intrigued by the veiled reference to a readily available HX that I'd never seen before. Jack, I hope that you get your problem solved to your satisfaction and if you do that I expect that it will be top shelf work.

Jerry, no need to go through the trouble. There's no room there either. The lower radiator hose goes through an opening in the front frame spreader, then makes a hard turn to the water pump inlet. I've been discussing my plan with some local people that I trust, and I am proceeding with that. I'll show photos when I'm done. If it doesn't work, it's on me.

Check MrCool marine coolers---as small as 8 in length-----


Pontiac firebird p/s hx 10417037 2108 is stamped on body---aprox10 inches long

98 02 Pontiac Firebird Trans Am WS6 Power Steering Cooler | eBay

. . . and waiting for the last hose fittings, vibration bushings and various small parts.

It's a B&M 70298 w/ plate & fin HX, 175F thermal switch and Spal fan. It's not as close to the differential as it appears, and it's invisible from the back of the car. There's plenty of space above it for air supply (or discharge), depending upon which way I run the fan.

Jack, It looks like you solved the problem! I'm not against pictures so anytime a picture of the simple Cu-coil is available from 34-40 I would still like to see it.

Don Shillady
Retired Scientist/teen rodder

I've at least solved the problem of where to locate a HX, Don. It's yet to be seen whether or not I have solved the transmission heating/cooling problem.

Looks like it should work well Jack. It's a good distance away from the trans and that should also help the cooling.

Don, don't hold your breath!

Do you know what temp you want the trans fluid?????????

Jerry, is that one question or nine?

Jack, that looks good. It's sure better than nothing at all!

@ better than nothing at all. That wasn't exactly what I was going for, but thanks . . . I think

I love all Earl's products except this on. In a tight situation, an aluminum ring press fit in a graphite ring, which is in turn press fit in another aluminum is more than a bit hard to maneuver without falling apart. They did fit in the trash can, though.