| Author |
Message |
Rodney Cook (148.63.130.108)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, March 17, 2002 - 10:42 pm: | |
HI
I had a V730 conversion done a few years ago. The transmission cooling is being done though the engine water. I never had a cooling problem until the auto transmission was added. So now I want to separate the two systems. Now for the questions. How large of a transmission cooler did you use? Where did you put it..in front of the radiator or in a different location? I'm tired of pulling off the road to let things cool down so I need to make this change.
Thanks
Rod Cook
4905 GMC
Elizabeth, CO |
JHD4805WI (152.163.201.192)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, March 17, 2002 - 11:37 pm: | |
Rod - The V730 has a tremendous fluid pressure going through the cooler, for that reason find a cooler which is strong, will allow ample flow, and has enough surface to cool the transmission. A friend of mine was able to secure a transmission cooler with 1/2" tubes from a gillig bus which fit in front of his radiator. Simple installation and then ran new fluid lines over to the cooler (same diameter as was hooked up to the oil to water cooler).
Another way is fairly simple. I took a piece of 3/8" x about 5' piece of copper tubing and drilled 1/16" hole in a straight line about 4" apart except in the middle. I then pinched one end and bent it over and put a flare fitting with a male barbed fitting on the other end, bent the tubing like an elongated "U" with the 1/16" holes on one side. I mounted the pipe so the holes faced the radiator and secured it with wire to the radiator shroud. Next I used plastic tubing and hooked it to a skinner valve and to my water tank. Also ran wires to dash to turn the valve on and off when needed. Now I watch temp guage, give the switch a flip and shut off in 15 seconds and watch the temp gauge drop. Guess they call it a desert cooler, crude, but it works and not much invested. Good Luck. John |
Frank Allen (205.188.193.36)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 18, 2002 - 7:03 pm: | |
Hayden makes one you can buy through napa, it is recomended by allison for the 730 the part number is 1-4764, then you need a good elsc fan, or maybe in front of the radiator, mine has a elec fan and is installed in the right hand door of the engene compartment, works good
Frank Allen
4106 2626 |
derv (63.255.96.3)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, March 21, 2002 - 7:21 pm: | |
Rodney,
I've owned three buses with the V-730 and the standard inline cooler. It has been my experience that if you are experiencing overheating problems with this setup, then your radiator is marginal and needs to be rodded out or replaced. I realize that you didn't have the problem until you added the auto, however, they do generate alot of heat until lockup and need the radiator to be near optium performance. This is also the experience of a friend of mine who runs about 35 transits in commercial operation. A new radiator would solve this problem as long as it is one spec'ed for this use. You may recall that the auto transmission was an option the last two or three years for this bus. |
Dwight (67.213.8.221)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, March 23, 2002 - 11:29 pm: | |
Rodney...
assuming you do have the factory trans. cooler, I would first check to make sure you do not have too much oil in the trans. 2 quarts over will raise the temp by 10 degrees, 4 quarts over will cause it to over heat.....experience speaking here...if you do have a trans. temp gauge, I would drain 2 quarts out of the trans. and see if there is a temp change ??? also if it is running that hot the oil does expand a bit, if I put mine at the cold mark once it gets at 180 it is over the hot mark, I have to put mine about 1 1/4" below the cold mark for it to be right when at 180 degrees...just food for thought..... |
rcook (198.207.223.237)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 26, 2002 - 11:17 pm: | |
Thanks for all the input.
Rod |
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