| Author |
Message |
Calli Whiteman
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 15, 2005 - 9:26 pm: | |
Hi all: I had to remove the drivers side radiator for some repair work to the rad. supports. I finished the project, and put the rad. back in, put 15 gal. of coolent back in, and started the engine to check for leaks. I ran the engine for about 45 min. to bring it up to temp. It finally reached 185-186 deg. I went back to check the rad. again, the drivers side was cool, and the passenger side was hot. I guess my question is..Is this normal?
8V71 MCI-8
Calli Whiteman |
Marc Bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, November 16, 2005 - 12:21 am: | |
Air Lock? |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, November 19, 2005 - 12:26 pm: | |
Hello Calli.
The hot feed to each rad comes from each bank of engine, controlled by the respective bank's thermostat. You have two.
So, perhaps a stuck or missing thermostat, either open or closed in one or the other?
45 minutes to warm up, unless it is cold where you are, is a long time.
On Marc's suggestion: Did you purge the air from the cooling system, both on the cross-over pipe above the water pump, as well as the top of the engine at the other end, on the pipe leading to the front defroster and heater?
Let us know what you find!
happy coaching!
buswarrior |
Calli Whiteman
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 20, 2005 - 12:45 pm: | |
Hi All: Thank you for the suggestions. I purged the air on the crossover pipe, I then took off the upper hose from the overflow tank and blew it out. I had the pipes shut off to the front radiator. I now start it up and it still takes about 20 min. to warm up to 185-187 in there. I felt the radiators. Both of the upper pipes that go into the radiators are warm to hot, the upper portion of the radiators are warm and then gradually get cold as the coolent reaches the bottom of the core. The lower pipes that return to the pump are cool. I hope this is the way they function. I am a woman that is learning more as time goes by. You people have really helped me. I have bult the coach from a bus, and it is really nice to live in now. I love my bus and it is a trip to drive. Thanks again for everything.
Calli Whiteman....MCI-8 |
Richard Bowyer (Drivingmisslazy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 20, 2005 - 4:05 pm: | |
Cali, it is almost impossible to get a Detroit Diesel hot just by letting it sit and idle. It must be out on the road and working for the temperature to come up to operating range. Take it out for a 30 minute test drive and then check it if you are still concerned.
Richard |
R.C.Bishop
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, November 20, 2005 - 11:09 pm: | |
There is an original label on my radiator access door that states "bleed heater cores and radiator by running the engine at 1500 rpm, leaving the radiator access open. When fluid runs freely out each bleed line, fill (radiator) and close all drains...."
Mine is a pancake style engine and VERY difficult to totally bleed of all air.
FWIW.
RCB |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 22, 2005 - 10:05 am: | |
Hello Calli.
Sounds good to me!
happy coaching!
buswarrior |