Onan Oil Pressure Switch & Engine Compartment Temperature

bdub

Well-known member
Aug 31, 1998
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Lake Brownwood, Texas
www.bdub.net
Thanks Ken

I've corrected and updated the FAQ at:
http://www.web-access.net/~bmassey/gmc-faq.html

bdub

>Onan Oil Pressure Switch:
>
>Today was my day to replace the 4KW Onan's oil pressure switch. Equipped
>with the recent postings about same, and with the old one in hand, I went to
>NAPA.
>
>For whatever reasons -- typos/mislabeled boxes/etc.-- the information on the
>net was somewhat scrambled; i.e., half right and half wrong. Here's what a
>good parts man and I got from the NAPA cross references:
>
> NAPA # OP6074 = Borg Warner # S510 NOT FOR US!
> Light Type (contacts closed at low pressure) 2.5 - 6.5 psi
> 1/8 x 28 BSPT (British Standard Pipe Thread) => WILL NOT FIT
>
> NAPA # OP6282 = Borg Warner # S310
> Light Type 3 - 8.3 psi
> 1/8 x 27 NPT
> Chrysler 62 - 78 & 82 - 85
> Jeep 55 - 59
> Numerous other Chrysler products circa 70s - 80s
>
>I installed the OP6282 -- see how easy it is? I just had to correct my own
>error "OP6283"! -- today and it works fine. The switch cost $5.99; the
>socket to install it cost $4.99. Don't forget to get the socket 'cause it's
>almost impossible to install the switch without it & easy with it.
>
>Hopefully that's all corrected now!
>
>Engine Compartment Temperatures:
>
>As of about a year ago, Gene Dodson of Motorhone Enhancements (the new GMC
>windows guys) had his engine compartment extensively instrumented for
>temperatures. I don't have an EMail address for him and don't think I've
>ever seen him on GMCNet, but he'd probably give you good definitive data if
>you called him at (704) 482 - 2098, his business number.
>
>
>
>