From: Bruce C. Beattie (bruce@EECS.Berkeley.EDU)
Date: Sat May 07 2005 - 18:49:55 PDT
Last year I drove my M1008 CUCV up to Oregon carrying a heavy load of parts.
One of my tires decided to imitate my cat and it shed a piece of rubber
the size of a
bagel. I shifted the load around before getting back on the highway to
traverse the last 30 miles.
The minute I got up to 25 MPH it started to occilate and very rapidly
almost tore the whole truck appart. At least that is what it seemed
like. Finally made it into the destination, unloaded, put
almost new takeoffs back on and thought everything was ok (These were
the 36 in M988 bias plys) Went for a test drive, no problems. Loaded the
truck back up, got back on the road
and it started up again. I checked everything I could and couldn't find
anything loose.
Took it to a shop to check the alignment, and it tested out to be good
and tight.
The guy decided to put some new tires on that he had and the problem
went away. I ended up with
some 35 inch all terrain radials at $200 a pop, but when I finally got
back on the road, it drove
like a dream, and that was with a full load. The guy said that he
thought the bias plys were so badly balanced that that is what was
causing the problem. Although I am glad I did get those new tires
since they were radials, I was a little bummed out that the guy didn't
just balance my tires. Ofcourse
he waited until I got the tires before he said anything about the balance.
I would say that the symptoms I was having sound exactly like what is
going on here, so I would
definetely check to see that the wheels are ballanced properly.
Bruce MVPA 23824
Bobby Joe Pendleton wrote:
> a steering stabilizer may help, but it also may be just hiding a real
>problem. The first thing I would do is check all movable joints in the front
>suspension and steering.
>
>BjP
>Southern by the grace of God
>"I...Shall Remain Confederate"
>
>----- Original Message -----
>From: "Chris Brunner" <cjbrunner@optonline.net>
>To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>Sent: Saturday, 07 May, 2005 20:22
>Subject: Re: [MV] CUCV swollen glow plug removal - rear brakes locked up
>
>
>
>
>>In the Jeep world I used to belong to before I got into military surplus
>>we experienced that same Phenomenon and called it Death Wobble. In a
>>Jeep it was caused by looseness in the front end, the axle would move a
>>little bit left to right and the steering would stay static causing the
>>wheels to turn a little left to right. This natural motion would build
>>up a harmonic and set the whole thing off into a giant wiggle that had a
>>really high pucker factor in the front seat. Although I know our trucks
>>are a lot different, I would check out all the hardware around the front
>>end to see if the diff is moving at all side to side that would
>>contribute to this problem.
>>
>>Chris
>>
>>Jeff Gatton wrote:
>>
>>
>>
>>>As for my shaking....I went for a test drive this
>>>morning and paid a little closer attention to the
>>>symptoms. The front end actually started shaking. I
>>>was able to hit the brakes and stop it before it got
>>>too bad. I came home and inspected and realized that
>>>my front steering stabilizer was completely missing.
>>>I bet adding one of them will stop the front end from
>>>shaking uncontrollably.
>>>
>>>Jeff
>>>
>>>
>>>
>>>--- Jeff Gatton <jdgatton@yahoo.com> wrote:
>>>
>>>
>>>
>>>
>>>>I finally got all the swollen glow plugs out. I
>>>>only
>>>>had to pull 3 of them out of the injector holes.
>>>>The
>>>>pulling tool and air ratchet only worked on 1. Good
>>>>ol' vise grips and some wiggling/pulling/cussing
>>>>worked on the rest.
>>>>
>>>>I bought the "super-duper" glow plugs from Kennedy
>>>>Diesel. They are actually Wellman 6A843G050. The
>>>>tab
>>>>broke off one of them (cheap-ass spot weld) when I
>>>>was
>>>>grinding it down to fit my connector.
>>>>
>>>>The swollen ones I removed were Wellman 6A843G070.
>>>>
>>>>After new glow plugs and a new glow plug relay, I'm
>>>>back on the road.
>>>>
>>>>Another funny thing happened....I was doing about
>>>>35mph and hit a dip in the road, all of the sudden,
>>>>the whole truck was shaking and jumping. I think
>>>>the
>>>>rear brakes/axle locked up on me. I stopped and got
>>>>out to see if my axle had fallen off or something,
>>>>and
>>>>everything looked good....it drove fine after that.
>>>>I
>>>>did smell some hot brakes/tires. I didn't try
>>>>hitting
>>>>any dips in the road at that speed yet though. Has
>>>>anyone had a similar experience? I was thinking
>>>>that
>>>>the rear proportion valve might have kicked in when
>>>>I
>>>>hit that dip and locked up the breaks...
>>>>
>>>>I just started driving this truck, so I'm still
>>>>learning his quirks.
>>>>
>>>>Jeff Gatton
>>>>Saucier, MS
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
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>>>
>>>
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>
>
>
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