Pertronics and Onan8h

[thomas phipps]

A general question for the brain trust. Is the sole purpose of the Pertronix mod for the Onan just a replacement for the points system?
Or, did I miss something in the years of reading about it's success.
Tom, MS II
--
1975 GMC Avion
KA4CSG

 

[Jim Hupy]

Once the flywheel is modified with the addition of the magnet, and the
pickup coil bracket is mounted, the ignition timing will not change from
that setting.
With ignition points, the ignition timing will change as the points
plunger wears. Not a good thing.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> A general question for the brain trust. Is the sole purpose of the
> Pertronix mod for the Onan just a replacement for the points system?
> Or, did I miss something in the years of reading about it's success.
> Tom, MS II
> --
> 1975 GMC Avion
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[robert mueller]

Unless you remove and then re-fit the fan shroud and its mounting plate. Then if you don't check the clearance between the pickup
and the magnet the flywheel can hot the pickup. Yep, been there, done that!

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of James Hupy
Sent: Thursday, July 13, 2017 9:20 AM
To: gmclist
Subject: Re: [GMCnet] Pertronics and Onan8h

Once the flywheel is modified with the addition of the magnet, and the
pickup coil bracket is mounted, the ignition timing will not change from
that setting.
With ignition points, the ignition timing will change as the points
plunger wears. Not a good thing.
Jim Hupy

 

[Matt Colie]

> A general question for the brain trust. Is the sole purpose of the Pertronix mod for the Onan just a replacement for the points system?
> Or, did I miss something in the years of reading about it's success.
> Tom, MS II

Tom,

Funny you should ask...
I was just about to write another note to a friend about this.

Mine is a BF (4.0) but mechanically similar to the larger NH (6.0) units. It was a bear to keep the ignition timing right. If you set it with a
timing light and turned around, it would have moved and sometimes it didn't wait for you to stop watching.

It was basically an unstable system. The fact that the points wear is the least of the issues.

It is also unfortunate that the system is basically weak. The conversion to Pertronix does not actually help this at all.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit

 

[skip hartline]

I put in the Gary Bovee pertronix set up from JimK, my 6K ran fine before the pertronix, the upgrade was well worth the money to me. Just my opinion
and we all know about opinions. Just the overall running and smoothness and sound improved. And don't have to worry about corroded points in Florida
and on mine the points were not friendly to get to.
Just my 2 cents

Skip Hartline