I am looking to give my bus a little more cooling on the trans.
Reason being is that I will be adding a toad and often pull mountain grades.
Im not sure what transmission my bus has but it does have a lockup torque converter, so that's nice.
What I'm having some trouble with is deciding how to plumb in the trans cooler, and also understanding how the existing water to water trans cooler is functioning.
Here are some pictures of what is under my bus. If someone experienced can answer a few of these questions for me I would be really grateful and you would help me understand how the existing system is working.
Here are picture I took of the water to water cooler.
I dont understand the "flow" through the system.
I also don't understand why there are two filters. One on the cooler, a large filter, and another on the trans, a small one.
Which should I replace or service?
I labeled the lines red for those that carry transmission fluid, and blue for those that carry coolant. If somone could tell me which way trans fluid and coolant are flowing through the system that would help a lot.
Blue line numbered 1 is connected to the bottom of the radiator on the front of the bus. I dont know where blue line 2 goes, but it has a valve on it?
This is the bottom of the trans unit. I actually didint see that there is a marking that reads " from CLR " on the bottom until I looked at the picture with the flash. I will have to trace that hose and see where it is coming from.
This is the trans cooler I would like to install. It's a little small but I have two of them and could install both.
My question is how should i plumb it?
The fitting on it are rather small, ( I think 8mm? ) So I am worried it would be too restrictive to run all the trans fluid through this unit in series. I am considering T-ing it in as a bypass around the water to water cooler and filter. That way part of the trans fluid will go through the W-W and part through the air cooler.
This would hopefully also reduce demand on the primary radiator and let the engine run a few degrees cooler on grades.
Thanks for the help in advance!