[The Appalachian]

Can you guys recommend proper banjo fittings for the cooling ports? Do these transmissions take the fitting with the extension and one regular fitting, or 2 regular fittings?

 

[sixsix]

I have not heard of "banjo fittings" being used on trannys.

 

[Bikley]

I got these in a kit but didn't use them because mine are threaded.

On a side note, I love a good banjo. 😃

 

[The Appalachian]

My objective is to rout the cooling lines to the rear of the van where i will have a cooler mounted. I want the ports to be at a 90 degree angle coming out of the transmission.

 

[Bikley]

My objective is to rout the cooling lines to the rear of the van where i will have a cooler mounted. I want the ports to be at a 90 degree angle coming out of the transmission.

You can't do that. The transmission needs all the cool fresh air it can get to keep cool, that's why coolers are always at the front. Unless you plan on some exotic duct work.

 

[gwd]

The fittings that go into the radiator have special tapered thread.
Even if you measure the the thread the regular cut threads do not fit properly.
I just went through that problem with the fitting.
The best solution to keep it professional and factory looking is to use same type of pipe end pieces that can be bent 90deg.
Route the piping down to an additional slim oil cooler at the bottom were cool air blows or just add additional one along the back of the radiator.
By adding an additional oil cooler with the factory rad unit will allow the oil to have more time to cool.
Make sure the lines inside are as big as the factory ones or as close to as possible.
A number of them cheat and have large fitting ends but reduce inside causing a pressure build up. Not good for tranny pump.
Use the factory lines to keep new additional lines ridged and in place better,
It is not recommended to be mounted at the front if you have air-conditioning as it will shorten the air compressors life and not cool as much in hot weather.

 

[The Appalachian]

I have a derale transmission cooler with it's own electric fan that i plan on using. I also have a derale transmission pan with cooling tubes and 2 quart increased capacity. I'm pretty sure that will be enough to handle the heat, though i am no expert.

 

[sixsix]

I have a derale transmission cooler with it's own electric fan that i plan on using. I also have a derale transmission pan with cooling tubes and 2 quart increased capacity. I'm pretty sure that will be enough to handle the heat, though i am no expert.

Never heard of anything like that for our 'Humble Vans'...

What and where are your roads - interplanetary?

And as a side note... Is it possible to be running "too cool" ?

 

[The Appalachian]

The fan has a thermostat that kicks on the fan at 180 and off at 160.

I live on one end of Appalachia and my dad lives on the other. I don't want to have to worry about heat while climbing mountains in summer heat.

 

[gwd]

The best way to know how cool the transmission runs to to add a temperature gauge on cooling line.

There's More To Coolers Than You Think

It's no secret that heat kills automatic transmissions. And in high-performance street-strip applications, the problem is especially acute. Small diameter torque converters coupled with stop-and-go traffic greatly increase the heat level in an automatic transmission. In most cases, the extra performance heat under the hood can have the same effect as heavy loads, trailer towing and desert conditions.
How hot is too hot?
The ideal operating temperature for automatic transmission fluid is between 175 and 225° F. At approximately 240° F, important additives in the ATF begin to cook. The result is the formation of varnish inside the transmission. At approximately 260° F, internal transmission seals (which are typically manufactured from a polyacrylate material) begin to harden. The end results are leaks, both internal and external, simply because the seals lose their elasticity. At approximately 295° F, transmission clutch plates begin to slip because the oil is breaking down further. At approximately 315° F, seals and clutches effectively burn out. Carbon forms in the oil and for all intents and purposes, the transmission is junk. Just for your information, a typical transmission will die within 2000 miles if subjected to 300° F+ heat.

 

[The Appalachian]

I guess my real question is, how do i get the transmission lines face the rear of the vehicle?

 

[Birdshake]

Wanna run -8 AN Trans Cooler Line? - LS1TECH - Camaro and Firebird Forum Discussion

Automatic Transmission - Wanna run -8 AN Trans Cooler Line? - I hate that my B+M cooler has 1/2 NPT inlet/outlet threads and I have tiny stock transmission cooler lines running to it. I originally spliced off where the metal lines turn to rubber up by the radiator, and ran rubber cooler line to...

ls1tech.com

Looks like it’s a 1/4” NPS thread for the 4L60E side cooler lines. AN conversion fittings and stainless braided hose to the rear of the van for your cooler would probably be the easiest install.

Or remove the stock lines, point them backwards and bend to fit. Install a new c clip and go from there?

 

[The Appalachian]

Wanna run -8 AN Trans Cooler Line? - LS1TECH - Camaro and Firebird Forum Discussion

Automatic Transmission - Wanna run -8 AN Trans Cooler Line? - I hate that my B+M cooler has 1/2 NPT inlet/outlet threads and I have tiny stock transmission cooler lines running to it. I originally spliced off where the metal lines turn to rubber up by the radiator, and ran rubber cooler line to...

ls1tech.com

Looks like it’s a 1/4” NPS thread for the 4L60E side cooler lines. AN conversion fittings and stainless braided hose to the rear of the van for your cooler would probably be the easiest install.

Or remove the stock lines, point them backwards and bend to fit. Install a new c clip and go from there?

I'm pretty sure I'm just going to mount the cooler then take it to a shop to plumb it.

 

[AstroWill]

Are you putting it inline with the factory radiator? Here is the cooler and fittings I used. Astro-Safari-Info - Auxiliary Transmission Cooler

 

[The Appalachian]

No. It's going into a Derale electra cool. I plan on mounting it above the transfer case tail shaft, which is behind the transmission. So, i need to orient the coolent fittings rearward. I'm going to do away with the factory clip system and switch to barbed and clamp fittings. But first i need to come off the transmission at 90 degrees rearward.

 

[AstroWill]

So like a street 90deg and then an adapter to barb? Regular pipe thread, can probably find something in brass at one of the big box stores.

 

[The Appalachian]

My concern with a regular 90 is that it will bottom out facing the opposite direction. If i tighten it to face the correct direction i risk striping or cracking the aluminum, correct? If i loosen to put in the correct position would i not rish leaking?

 

[MechBob]

Well, I think you are unnecessarily concerned, unless you make these trips regularly with a 6 ton trailer.
Plus, in cooler weather, the rad/trans system works to warm up the trans fluid, and keep it from running too cold. A symbiotic relationship.
Just to mention--the off road guys have tried banjo fittings on trans coolers, found them too restrictive on the flow, so what was gained, was lost. Also, things evolve, the new 10 speeds used in ford&chevy trucks run much hotter, by design, and use a expensive hi temp fluid. And hold up very well.

 

[ehbrown1]

Just remember that cooling devices are placed in the front for several reasons. The first being that it's the best place for available cool air allowing them to perform their function. Secondly, they are there to avoid debris clogging their fins and reducing their ability to cool. Thirdly if you mount one underneath or in the rear, you are exposing those coolers to road salt and all the rest of the toxic waste on the highways today. Kick up a stone with an underneath mount and you have a new meaning for the word trouble. Depending on the cooler construction and where it's used, we have seen the fins actually eaten away by road treatments. Lower trans temps are great, but too low and any moisture which finds it's way into the transmission will not evaporate under 212 degrees. It's the same principle that on short trips in cold climates gives you that yellow foam in your crankcase oil fill cap.

 

[The Appalachian]

I appreciate you alls concern and advice. I live in the south so salt is Minimum. Also, i do not live close to anything. Anytime i use the vehicle it reaches operating tep for at least 10 minutes. Another one of my goals is the declutter the engine bay.

Gentlemen, the project continues!.... i just need to know a way to get the fittings to face rearward, correctly. I wrote above that my caution with using a regular 90 is where it lands when bottomed out. If it is bottomed out facing the front i cant turn it the additional 1/2 turn without risking stripping, i assume. And backing it out a 1/2 will cause leaking.

I basically need to know what fittings that are appropriate to make the outlet of the fitting aim at a 10:00 position. Is there a type swiveling 90?