| Author |
Message |
Jerry (198.81.26.38)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 30, 2003 - 8:16 pm: | |
Well, it is nearly winter time and thoughts wonder to what should I be doing to my ongoing bus conversion project. I finally to changeover to an automatic (v730) in my 4106 about the only project I wasn’t going to do myself (thanks Luke!). Like many I noticed a warmer than usual (looked like 190-210 over the normal 170-180 as indicated on the OEM engine temp gage) engine temp during my one 1000 miles or so trip home even though I wasn’t driving at all in hot ambient air temps – 50-70's. I’ve been thinking about the routing of the coolant flow hooked up to the transmission heat exchanger and wonder what is the coolant route other ‘06's use. Mine: one line hooked to a port at the suction side of the engine pump the other to an access plate/port on the engine block. As I see it the hottest coolant from the exchanger output gets sucked into the pump and once the engine thermostats open is then routed through the engine block and back to the exchanger again – hence this “hotter” coolant never gets routed directly through the radiator – it mixes with the coolant within the engine block and eventually works its way through the radiator. What I’m guessing is that my engine block temp would be cooler if this “hottest” coolant wouldn’t be doing its mixing within the engine block. I was thinking perhaps a separate electric or mechanical coolant pump and / or different routing would force this “hottest” coolant through the radiator – and / or separate transmission cooler cooling either the coolant or transmission oil. Any other ways ye all have tried to solve this problem? |
Frank Allen (152.163.252.163)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 01, 2003 - 12:45 am: | |
disconnect the heat exchanger put the engine cooling back like it was, add a transmission oil cooler and electric fan on the right side, id also add a temp gauge.
Frank Allen
4106 |
Bill Gerrie (216.185.73.251)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 01, 2003 - 8:46 am: | |
Jerry
I did like Frank said only I left the orginal cooler after talking with Allison as they said you needed it to warm up the tranny to start with. I put the cooler I got from Haden in series with the orginal one. I went to the wreckers and got an electric fan from an auto and hooked it in with a temp switch to make it come on at 185*. That was 13 years ago and I still run the same tranny. Touch wood. Hope this helps you . Bill |
Frank Allen (152.163.252.163)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 01, 2003 - 12:11 pm: | |
Bill, does you engine run cooler with this set up?? whatv size haydon are you running?? fan pull air in or out?? , thanks
Frank Allen
4106 |
jerry (198.81.26.38)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 01, 2003 - 8:19 pm: | |
Bill -- I too would like to know the size haydon cooler & where did you mount it. The biggest challange I see is mounting in a place one can have access to ambient air instead of that within the engine compartment |
Bill Gerrie (216.185.73.251)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, December 03, 2003 - 12:33 am: | |
Jerry and Frank
I cut an opening in the door on the tranny side and covered it with the expanded metal like on the rad side. I mounted the cooler with a fan pushing the air outward. I thought about drawing in air from outside but you would be fighting the air from the engine fan. I really didn't think a little car fan would win against a 30 inch monster. I put a temp switch in the output of the tranny to turn on the cooler fan at 185*. The cooler was the largest one I could get to fit in the opening I had cut. It had 3/4" in and out lines and was about 12" x 16" x 1 1/4" thick. I had the oil come out of the tranny convertor into the Hayden cooler then into the original cooler than back to the tranny. This took some of the heat out of the oil before it got to the water cooled one. The tranny runs about 10* warmer than the engine. I know you are useing the engine compartment air to cool the tranny but you can't fight the big fan. The best thing I ever did to cool the engine was to make sure the air intake was totally free on any obstruction. Mainly lint or junk on the screen on the louvered air intake. I even made the louvers bigger so that the total free area was as big as possible. I had so much air going in that when I had a new muffler installed they had to put a 5" in and out to keep the back pressure down. I hope this helps you guys. Bill |