From: l51940@aol.com
Date: Mon Jul 25 2005 - 12:21:35 PDT
This may or may not have some bearing on this discussion but I once had
a Jeep that had a bad vacuum advance. After shutting off the engine,
gasolene vapors would find their way past the broken vacuum advance
diaphragm and into the distributor. When restarting the engine the
sparks would ignite the fumes and blow the distributor cap off.
Dave McConnell
-----Original Message-----
From: Sonny Heath <sonny@defuniak.com>
To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
Sent: Mon, 25 Jul 2005 12:45:47 -0500
Subject: Re: [MV] M series distributor vent system
Think that will smoke in your pipe Joe?
Sonny
----- Original Message ----- From: "Wes Knettle"
<wsknettl@centurytel.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Monday, July 25, 2005 9:52 AM
Subject: [MV] M series distributor vent system
> Based on my experience the vacuum powered vent system on the M series
> autolite systems when disabled or plugged in high temp geographic
areas > tends to shorten the life of the coils. I won't argue all the
goodies a > vent system can do for a sealed distributor but I am
convinced cooling > is one of them. The Army training references I have
found are the system > is there to "vent and to remove moisture from
the waterproof > distributors". Common sense dictates that the act of
venting provides > fresh clean cool air and the result is the purging
of stale contaminated > hot air. Next to incorrect applied voltages and
mechanical ineptitude > heat is the ignition coil's greatest enemy. The
M series sealed > distributors if not vented will build up tremendous
heat levels which > will shorten coil life measurably. Next time you
pull in your driveway > and shut down after a trip put your hand on the
distributor housing!
> > Wes K
> >>
>>> Message-ID: <BAY101-DAV157950DA86FBE0F1CFB824C0CA0@phx.gbl>
>>> From: "Thomas M McHugh" <tmmchugh@msn.com>
>>> Subject: [MV] M38A1 Questions
>>> Date: Sun, 24 Jul 2005 20:14:28 -0400
>>>
>>> I am presently having an M38A1 Engine Remanufactured. The Head &
>>> Block will be Magnafluxed & planed, The Crankshaft will be balanced
>>> & turned if needed, ALL other parts will be new. The cylinders will
>>> be bored out slightly & a new 24 volt system will be installed,
along >>> with a new wiring harness.
>>>
>>> I do not have all the tubing on my present engine, as it had been
>>> made 12 volt.
>>>
>>> Question: Will the coil in the distributor over heat without a >>>
line ??? Are the lines an air system or vacuum system.
>>>
>>> Question: What is a fair price to sell my present engine. Runs >>>
good.
>>>
>>> I just have the opportunity to build a remanufactured engine.
>>>
>>>
>>> Tom McHugh, NJ
>>> 1952 M38A1
>>> M-416 Trailer
>>> MVPA, MTA
>>>
>>
>>>
>>> ------------------------------
>>>
>>> Date: Sun, 24 Jul 2005 21:45:23 -0400
>>> From: joeyounginc@aol.com
>>> Message-Id: <8C75ED1A875C058-864-492FC@mblk-d45.sysops.aol.com>
>>> Subject: Re: [MV] M38A1 Questions
>>> Tom,
>>> The distributor vent lines are not for cooling the
>>> coil, they vent the distributor of gasses that would
>>> cause the points to burn.
>>> Joe Young
>>>
>>>
>>> >>>
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