From: Mike Maynard (mike@wesleyscott.com)
Date: Fri Jun 17 2005 - 20:03:51 PDT
I think Dave has nailed it on the head here... One other thing I want to
add, is I think you should investigate why it stalled too. I know it sounds
like horrible news, but if a bearing went bad (or ring, etc) that may have
caused it to stall, could be causing it to turn over hard now.
Mike
-----Original Message-----
From: MV [mailto:MV@dc9.tzo.com]
Sent: Friday, June 17, 2005 10:57 PM
To: Military Vehicles Mailing List
Subject: Re: [MV] M880 Woes.......slow starter
If you lose a winding in the armature or if a high resistance develops
in one of the starter connections, it can heat up and the result is less
torque output from the starter. Generally they just finally melt down
due to the increased heat, and increased resistance, plus the fact that
frustrated owners tend to try to crank the engine over anyway, even
though it goes very slow.
I generally stop only after smoke starts billowing out of the old
starter. Then I start to feel better! (;->)
See if you can put a voltmeter on the starter when you crank it. If you
have something close to 18 volts on a 24 volt system or 9 volts on a 12
volt system when you are cranking the starter is probably trying hard to
crank the motor but it isn't moving, or is mechanically hanging up. If
you have less than half system voltage when cranking, then it is
probably screwed up and is in the process of melting down.
Check to make sure that the engine is free by attempting to turn the
crankshaft via the fan blades. (With the ignition off!)
Other than that, remove the suspect starter and have it load tested by a
starter shop.
Dave
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Cliff S wrote:
> Does anyone have a clue as to why a starter would be slow, all of a
> sudden. Is it just that time has caught up with it or has someone done
> some sabotage to it (it sits near a main road and peole stop all the
> time by it) in some way?
>
> I cleaned all the posts and connections to the battery, dist, coil and
> starter. I did not see a body to engine grounding strap. Is there
> one? I have the manuals (on CD) but they are a pain to look through,
> but that will be on the list this weekend of things to do.
>
> Could someone have put something down the gas tank that would slow the
> starter down that much, cause its REALLLLLLYYYYY slow. The oil and
> tranny fluid LOOK good still. It fired right off like usual last time I
> ran it, but stalled out after about 5-10 minutes. I was talking to a
> neighbor and left it stalled while we finished our converstation. Could
> the result of the stall, left, be a burnt ignition
> something?????.....after I left it with the key on while we talked????
>
> I am hoping that the starter has just died and that is the easy fix.
>
> I have done all this trying WHILE a new Optima battery was installed
> (and another 6TL before) and jumpers cables were going to try to get as
> much juice as possible.........still no joy, slow, even with the jumper
> cables.
>
> Any ideas guys/gals??????
>
>
>
> Cliff Smith
> SSgt USMC
>
> M880 (4 sale, still, not that you want to buy it with this post!!!!!!)
> M274A5
> 6K GenSet
>
>
>
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This archive was generated by hypermail 2.1.4 : Fri Oct 28 2005 - 22:47:29 PDT