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Wheel Horse 416 engine replacement


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#1 KC9KAS OFFLINE  

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Posted June 18, 2016 - 09:01 AM

My brother has a WH 416 with a bad engine. It is not going to be cost effective to rebuild it.

I found a Onan B48M-GA 018/3475A 18 hp......Will this work as a replacement engine?

Thanks



#2 glgrumpy ONLINE  

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Posted June 18, 2016 - 09:51 AM

Check shaft size and think would be about the same. Maybe diff carb and air filter??  Don't think much differences in these, much the same as changing old K engine sizes. Base plate holes should be same?? Does it run off the flywheel side? Might need the drive coupler off the old engine if so.



#3 mtoney OFFLINE  

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Posted June 21, 2016 - 06:35 AM

A WH 416 is a sidewinder belt drive.  As long as the PTO clutch assembly and drive pulley for the transmission belt will fit the crankshaft ok, then it should work fine.  Was it a B or a P series that came out of the 416?  A B series Onan has points and the P series has electronic ignition control.  Either will work but there are minor wiring differances between the two engines.   Make sure you adjust the valves and decarbon the heads and piston tops before you install the used Onan.  Valves being out of adjustment and carbon build up are the 2 big reasons for popped valve seats and broken rods.  Onans need thier valve lash adjusted every 200-250 hours of use.  Mike


  • limebuzz said thank you




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