| Onan Cranking Current. [message #310204] |
Thu, 10 November 2016 14:23  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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Senior Member |
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About Onan cranking current.
Quick answer:
152 Amp peak
91 Amp RMS
There was recently some discussion about this and I happened to have:
This all about a BF (4.0) Onan. I don't know how it would relate to and NH (6.0).
A - An Onan start switch close to the Onan's battery (its a 23).
B - My instrument case in the coach for several reasons.
C - Time to do this experiment.
So, I have an 87 and Bell probe (they are both old, but still good) and I put the probe on the power to the Onan and set the Fluke up to capture. It was cold enough that I hoped the Onan. I got two good 3~5 second cranks before it started.
This was in about 50° weather and with a nice running BF that has had 10-30 Mobil 1 in it as long as I have owned it.
The Onan's battery was new two years ago.
So, if you care, you have that for a data point.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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