7500 Onan
I posted this on IRV2 and didn't get much response. My QD7500 Onan is not on a slide and has to be dropped down to take the cover off to gain access to the engine and internal parts. I was wondering ...
Forum Discussion
My 7500 is also not on a slide. I use a hydraulic table to pivot (remove the front mount bolts and 1 on each side in the rear) the unit down for anything other than oil or coolant flush. My unit has a little over 30K hours on it. We had the radiator rebuilt, changed water pump and belt. I'm on my 3rd water pump and belt. I change the thermostat as a matter of habit if I'm that far into it. Link for the table from Harbor Freight - hydraulic table
We also changed the oil pressure sending unit last week. That turned out to be a fairly significant job. We had to pull the radiator, muffler and fiberglass firewall (for lack of a better term) to get to the switch since it's buried in the right rear portion of the block. Of course it was a mess, but we got it all cleaned up and going.
The biggest thing would be not changing any of the characteristics of the cooling air flow. If you do, it will overheat and eventually cause damage. It's like changing the characteristics of a fan shroud. Normally it causes more issues than it's worth. Honestly, I think you'd be better off spending the $170 at Harbor Freight for the hydraulic table for as little as you'd need to remove the top.
We also changed the oil pressure sending unit last week. That turned out to be a fairly significant job. We had to pull the radiator, muffler and fiberglass firewall (for lack of a better term) to get to the switch since it's buried in the right rear portion of the block. Of course it was a mess, but we got it all cleaned up and going.
The biggest thing would be not changing any of the characteristics of the cooling air flow. If you do, it will overheat and eventually cause damage. It's like changing the characteristics of a fan shroud. Normally it causes more issues than it's worth. Honestly, I think you'd be better off spending the $170 at Harbor Freight for the hydraulic table for as little as you'd need to remove the top.
