| Author |
Message |
Pat (64.12.96.235)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 21, 2003 - 3:51 pm: | |
I need help on solving a starter problem
I have had three 24V starter placed on my bus. The year is a 1987 Prevost with 2 new starting batteries just replaced after the 2nd starter The starters keep burning up
I just had the 3rd starter put on and I went out to start the bus. It starts ok, but after 5 minutes of running the starter is very hot to the touch. There is a hissing sound it sound like its shorting out. When I shut off the 24v batteries, the sound stops. Did I say this is the 3rd starter? This 3rd starter was load tested before it was put on ,the repair shop says it is not the starter. I can't find a mech who know how to solve this problem. Does any one have an answer |
Geoff (Geoff) (66.238.120.2)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 21, 2003 - 5:05 pm: | |
It doesn't sound that hard to figure out-- you must have a relay switch to the starter solenoid hanging up so the starter motor stays engaged even after you release the start button/switch. To fix it you need to disconnect the wire to the solenoid, hit the start button and see if the current stays on even after the start button is released, if so, then you need to backtrack and find what is hanging up-- like a relay switch in the starting system wiring.
--Geoff
'82 RTS CA |
Marc Bourget (209.142.38.81)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 21, 2003 - 5:07 pm: | |
Can you put an amp meter on the starter cables to see if they're still pulling power at 5 minutes after starting the engine?
I'm getting the idea that the solenoid or something like is stuck and keeps supplying power to the starter. (The hissing sound that stops with Batt disconnect)
This is a high torque motor which also generates a high back EMF, more than sufficient to overheat a starter that is designed for maybe 30 revolutions typical max
Onward and Upward
Marc Bourget |
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