From: chance wolf (chance_wolf@shaw.ca)
Date: Fri Jun 04 2004 - 08:21:38 PDT
----- Original Message -----
From: "Amnon" <amnon@deltaforce.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Friday, June 04, 2004 6:19 AM
Subject: [MV] M1009 started problem
> Crawled under it to see if I can see anything, and lo
> and behold, the rear bolt (the one towards the rear of the vehicle) wasn't
there
> at all.
Yup. Common. I usually retighten mine whenever I do an oil change. What
normally happens is that the bolts work loose, then the starter torque slams
against the bolt body and snaps it off. It's worse if the mounting bolt and
bracket assy on the *front* of the starter are loose or missing too, as the
starter will flop all over the place when you turn the key. The Really Bad
Thing is that when the starter gets loose it becomes misaligned with the
ring gear, and start attempts chew a fair-size chunk off the ring gear (and
the noise wakes up the neighbours.)
> I went and got the right starter bolt from Car-Quest but it didn't find
> any threads to screw in to. I took the other bolt out and it looks like
the
> missing bolt snapped about 1/4 inch inside the hole on the engine.
Looking at
> the new bolt (for those of you who know the bolts) it looked like it
snapped
> right at the begining of the thread, where the wider part of the bolt
starts.
That's where it usually snaps. I've had a few like that, and you can
normally walk the bolt fragment out of the casting by using a blade
screwdriver and a lot of patience. Use new bolts for both sides every time.
The surviving bolt will be weakened due to the death of its partner, and may
even be physically bent.
If you have to drill it out, buy some Reverse Twist type drill bits (Snap On
and friends). When you start drilling and the bit begins to bite, more
often than not the bolt fragment will walk right out on the end of the drill
bit, where a standard drill will tend to wind it in even more. I've also
taken old bits the same diameter as the old bolt and modified the
business-end so that a jagged tip presents itself to the broken off bolt
fragment. Insert it in the hole on the end of your variable speed
reversible drill - operate that drill Reverse, Slow - and the head might
walk itself out. Don't try that with the cheapie one-speed-fits-all style
drills or you'll just make a mess. :)
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