| [GMCnet] distributors [message #220028] |
Mon, 26 August 2013 18:27  |
mjbourgon
Messages: 259
Registered: May 2010
Karma: -1
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Senior Member |
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Good afternoon all.
My friend Gary has been having a problem with his engine. He was
running on seven cylinders and could not find out what the problem was.
We decided to pull the distributor cap and take a look. The pin on the
cap for #7 cylinder was just about gone. Inside the cap the connection
was pulled down and not making any connection to the rotor. This was
almost too simple but had been overlooked by several mechanics. We
replaced the cap and the coil and voila, all is now good. Some times we
overlook the simple things and think we need to attack our old beast
with more expensive fixes. As a trouble shooter when I was in the air
force the rule was start with the simple things first. Rule one K.I.S.S.
Just a thought. Somebody has already invented the space shuttle
Marcel in El Paso
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| Re: [GMCnet] distributors [message #220041 is a reply to message #220028] |
Mon, 26 August 2013 21:09  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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There is no substitute for a goid visual inspection. He should change oil and filter as it may be diluted with fuel from misfire
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Distributor [message #224529 is a reply to message #220028] |
Fri, 04 October 2013 13:21 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I have the 403 with a 3:70 and tow a cargo trailer. When I bought my new Springfield Ignition from Dick Patterson he set it up for my coaches engine, final drive and the trailer, the performance is awesome.
Ray Erspamer
78 Royale
Sent from my Galaxy S®III
-------- Original message --------
From: D C _Mac_ Macdonald <k2gkk@hotmail.com>
Date: 10/04/2013 11:38 AM (GMT-06:00)
To: GMC Mail List <gmclist@temp.gmcnet.org>
Subject: Re: [GMCnet] Distributor
And Dick Patterson told me at Branson that the advance curves also are different for different final drive ratios.
I'm reasonably certain that my final drive is a stock 3.07. I hope to go to a 3.70/3.73 ratio eventually. Dick said that a distributor set for the 3.07 would suffer when coupled with a 3.70 but that one set up for the 3.70 would only suffer slightly if used with a 3.07.
With that info, I bought one there that he already had set up for my hoped for eventual 3.70 drive.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> Date: Fri, 4 Oct 2013 09:17:52 -0700
> From: jamesh1296@gmail.com
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Distributor
>
> They are both physically the same dimension, so physically they can be
> interchanged, but for optimal performance, the advance curves SHOULD BE
> optimized for each engine. Their torque curves are different. Dick Paterson
> has published MUCH INFORMATION on this.
> Jim Hupy
> Salem, Or
> 78 Gmc Royale 403
> On Oct 4, 2013 9:08 AM, "Charles Boyd" <covered-wagon@comcast.net> wrote:
>
> >
> >
> > yes
> >
> >
> > Wander Inn wrote on Fri, 04 October 2013 12:05
> > > Are 403& 455 distributors interchangeable?
> > >
> > > Mike
> >
> >
> > --
> > C. Boyd
> > 76 Crestmont
> > East Tennessee
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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