Onan Aux Issue

[Rich Biebel]

David I work on newer machines primarily so we do not keep parts on the shelf for an older machine like that.

I would not worry about the points since that is not likely your problem.

Not sure if anyone even makes a kit to eliminate the points.

I did try to install one of those kits on an old BF but it did not work properly. Had to stay with the points.

You can jump a 12v+ wire to the coil+ terminal and see if it stays running.

That would pretty much tell you the ignition 12+ power is not being supplied after you let go of the start button.

These machines are not complicated by todays standards....

[Davey Summa]

hooked a jumper wire from the battery to the coil: Started right up and ran fine.....LOL....now what do I replace????

[Rich Biebel]

Oil pressure switch....

[Davey Summa]

I installed a new oil pressure switch. Still doing the same. I have to unplug the oil pressure switch and run the hot wire to the coil for it to start and run.

? what might be my next step?

Davey

[voltdr]

I would leave the jumper to the coil and put an oil pressure gauge in place of the switch to see how much oil pressure you have while its running.
Dan

[Rich Biebel]

Yes verify that you have oil pressure with a gauge. Onans rarely lose pressure but it is possible.

[Painter]

I have seen issues with lite weight/synthetic oils in stationery engines and generators. The conditions these units run in, closed compartments limited air flow, long periods of use seem to really like a heavier oil. I prefer a high quality 20w50.