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iamalienru's avatar
iamalienru
Explorer
Oct 15, 2013

Onan 7500 quiet diesel

I recently drained the radiator fluid in my onan 7500 as general maintenance. When I repaced the fluid it seemed to take only about a quart of fluid I am pretty sure it is suppose to take about 4.5 quarts. Anyway now when it get up to temp is shuts off. My question is...is there a fluid bleeder on the block of diesel engine? I feel like I could have some sort of air trapped that won't allow the extra fluid. I have read all the posts on the temp sensor and belts to the pump. I just can't figure out why all of a sudden it won't take anymore fluid and if for some reason it is full why it is shuting down
Class A
  • Big_Katuna's avatar
    Big_Katuna
    Explorer II
    Oct 15, 2013
    The capacity is listed on the info panel by the switch. QDs are hard to fill, like burping a baby. You have to fill throughout the cap, not the tank. I used a small hose,1/4 " or so and a small funnel. Needs to trickle in.
  • 2ndhom's avatar
    2ndhom
    Explorer
    Oct 15, 2013
    iamalienru wrote:
    I recently drained the radiator fluid in my onan 7500 as general maintenance. When I repaced the fluid it seemed to take only about a quart of fluid I am pretty sure it is suppose to take about 4.5 quarts. Anyway now when it get up to temp is shuts off. My question is...is there a fluid bleeder on the block of diesel engine? I feel like I could have some sort of air trapped that won't allow the extra fluid. I have read all the posts on the temp sensor and belts to the pump. I just can't figure out why all of a sudden it won't take anymore fluid and if for some reason it is full why it is shuting down


    Did you drain out 4 1/2 quarts??
    :@

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