broken starter bolt
Moderator: Kurt Lesser
- unclesamsurplus
- Sergeant Major of the Gee
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- Location: mississippi
broken starter bolt
if anyone has broken a starter bolt on ther hummer, here is my experience.
my 86 hmmwv made a terrible sound yesterday when i turned the key like RRRRRRRR. i drove it home and shut it down, went to start it and the sound got worse. it wouldn't even roll over.
i got under the truck and rapped on the starter with a pipe but no difference. i took a good look at the bolts and noticed there was only 1 bolt holding the starter on. so i removed it thinking i could go up to the hardware store and buy another but as with most mechanical work, it's never that easy. the second bolt had broken off in the block.
so, i drove up to lowes hardware to pick up a bolt and an easy-out and discovered the bolt was metric and they didn't have one. so i headed over to bay bolt and screw. (a mom and pop shop with every bolt, screw and fastner in the world.) i bought a grade 5 metric bolt identical to the original for $1.50 and a left handed drill bit for $5.00.
got home, shot it wit PB blaster penetrating oil, hit it with a center punch a few times and put the left handed drill bit in reverse.
in 10 seconds the broken bolt pulled right out, 15 minutes to reinstall the starter, shim, wires, and flywheel cover and i was back on the road.
if anyone else out there breaks a starter bolt, hopefully you will have similar ease as i did.
btw: i have always driven ford trucks and never would have had this problem with a ford motor. 3 horizantal bolts seems to me a better design than 2 vertical bolts with a shim but i still would not trade my hmmwv for a ford.
my 86 hmmwv made a terrible sound yesterday when i turned the key like RRRRRRRR. i drove it home and shut it down, went to start it and the sound got worse. it wouldn't even roll over.
i got under the truck and rapped on the starter with a pipe but no difference. i took a good look at the bolts and noticed there was only 1 bolt holding the starter on. so i removed it thinking i could go up to the hardware store and buy another but as with most mechanical work, it's never that easy. the second bolt had broken off in the block.
so, i drove up to lowes hardware to pick up a bolt and an easy-out and discovered the bolt was metric and they didn't have one. so i headed over to bay bolt and screw. (a mom and pop shop with every bolt, screw and fastner in the world.) i bought a grade 5 metric bolt identical to the original for $1.50 and a left handed drill bit for $5.00.
got home, shot it wit PB blaster penetrating oil, hit it with a center punch a few times and put the left handed drill bit in reverse.
in 10 seconds the broken bolt pulled right out, 15 minutes to reinstall the starter, shim, wires, and flywheel cover and i was back on the road.
if anyone else out there breaks a starter bolt, hopefully you will have similar ease as i did.
btw: i have always driven ford trucks and never would have had this problem with a ford motor. 3 horizantal bolts seems to me a better design than 2 vertical bolts with a shim but i still would not trade my hmmwv for a ford.
- dilvoy
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broken starter bolt
unclesamssurplus, The bolts for the diesel starters are hardened and have a nurled portoin on their shank so they fit tight in the starter bolt holes. The diesel bolts are stronger than the "same looking" gas engine starter bolts. Does your Humvee still have the starter support bracket at it's forward end?
George D. Paxinos
M998
M1123A2
M998
M1123A2
- unclesamsurplus
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- dunsbr
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Uncle Sam,
As well as the support braket at the front not being fastened, another source of starter motor bolt failure is incorrect shimming of the starter.
Did you notice if your starter had a shim fitted?
(Its a long plate with an angled end and 2 holes in it)
If so, was it under both bolts?
(They often go askew while being fitted giving an assymetrical load on the bolts.)
Cheers
As well as the support braket at the front not being fastened, another source of starter motor bolt failure is incorrect shimming of the starter.
Did you notice if your starter had a shim fitted?
(Its a long plate with an angled end and 2 holes in it)
If so, was it under both bolts?
(They often go askew while being fitted giving an assymetrical load on the bolts.)
Cheers
Brad Dunstan
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
- unclesamsurplus
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- dunsbr
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That's good.
How about the little brace at the front of the starter?
One of the Aussie owners had both bolts break and the starter dropped onto the chassis rails and shorted out! This in turn melted his battery terminal. As all this happened in the outback he had to jack up the truck get a rock and chunk of wood to prop the starter in place while he lowered the truck. The rock and the wood held the starter with enough pressure that he could get the truck started!
He then removed the wood & rock, insulated the starter connectors and drove home without turning the truck off till he got home 8 hours later!
True story!
Cheers
How about the little brace at the front of the starter?
One of the Aussie owners had both bolts break and the starter dropped onto the chassis rails and shorted out! This in turn melted his battery terminal. As all this happened in the outback he had to jack up the truck get a rock and chunk of wood to prop the starter in place while he lowered the truck. The rock and the wood held the starter with enough pressure that he could get the truck started!
He then removed the wood & rock, insulated the starter connectors and drove home without turning the truck off till he got home 8 hours later!
True story!
Cheers
Brad Dunstan
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
- dunsbr
- G-Lieutenant General
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BTW, he never bothered to refit the little bracket on the front of the starter after he had dropped the starter a year or so prior.
Cheers
Cheers
Brad Dunstan
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
- unclesamsurplus
- Sergeant Major of the Gee
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- Joined: Wed Mar 01, 2006 4:28 pm
- Location: mississippi
thats unreal. i once broke the throttle linkage in my racecar between qualifying and the main event and had to use one of my boot laces, finished the race in 2nd and trailered it home. the next saturday i was loading it back on the trailer and my girl asked me if i'd changed the throttle linkage. i said, "are you crazy? that bootlace is goodluck."
anyways, i dont have a starter brace and don't see where it would mount. got any pics? i can probably make something up.
anyways, i dont have a starter brace and don't see where it would mount. got any pics? i can probably make something up.
- Kurt Lesser
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starter bolts
I was fuelling up one day when I heard a "tink" under the truck. I looked underneath and there was one of the starter bolts laying on the ground!
I've had broken bolts before but attributed it to a missing shim and no front bracket.
I've had broken bolts before but attributed it to a missing shim and no front bracket.
Kurt Lesser
US Navy, 1969-1975
M996A1 Ambulance w/M101A3 Trailer
M274A2 Mule
M151A1 Mutt w/M416B1 Trailer
M890 Crew cab
US Navy, 1969-1975
M996A1 Ambulance w/M101A3 Trailer
M274A2 Mule
M151A1 Mutt w/M416B1 Trailer
M890 Crew cab
- dilvoy
- G-Lieutenant General
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- Joined: Tue May 18, 2004 4:28 pm
- Location: San Francisco, Ca.
Broken starter bolt
I can take a foto tonight and post it tomorrow. The support bracket is held in place at the rear of the square metal engine mount bracket that is attached to the right side of the engine block. It is held in place with the rear two bolts that hold the rubber engine mount (isloator), but the bracket is inside of the square opening of the engine mount bracket. It looks like an upside down "J" and the starter has a bolt that sticks through it. It is just about impossible to see the bracket with the starter installed, but you can if you look through the square engine mount bracket from the front. That's where you would have to go through to attach the nut onto the starter stud.
George D. Paxinos
M998
M1123A2
M998
M1123A2
- dunsbr
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Uncle Sam,unclesamsurplus wrote:thats unreal. i once broke the throttle linkage in my racecar between qualifying and the main event and had to use one of my boot laces, finished the race in 2nd and trailered it home. the next saturday i was loading it back on the trailer and my girl asked me if i'd changed the throttle linkage. i said, "are you crazy? that bootlace is goodluck."
anyways, i dont have a starter brace and don't see where it would mount. got any pics? i can probably make something up.
here's an illustration out of the TM showing the starter.
It's an odd view and takes a minute or two to get the orientation sorted...
( it's drawn as if you are looking through the passenger footwell and chassis rail!!)
But the front bracket we are all talking about is in the "bubble" market "New configuration".
Hope this helps
Cheers
Brad Dunstan
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
- dunsbr
- G-Lieutenant General
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- Joined: Thu Dec 09, 2004 2:53 pm
- Location: Melbourne, Australia
- Contact:
Sounds like it's probably a good PM idea to change the bolts occasionally given the experience of such a large percentage of list members.
Cheers
Cheers
Brad Dunstan
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
RHD '87 M1026
(with 4L80E Trans, 242 T/case, 12K hubs, CTIS, A2 wiring, Air Con, A2 ebrake, 9k Winch,
Serpentine Belt Accessory Drive & Eaton e-lockers)
- unclesamsurplus
- Sergeant Major of the Gee
- Posts: 375
- Joined: Wed Mar 01, 2006 4:28 pm
- Location: mississippi
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- Sergeant Major of the Gee
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When I first got my vehicle and drove it home 540 miles, about three days later the starter would not engage and upon discovery found one bolt missing and the other in bad shape, out of desperation I had it towed to the Chevy dealer in Sonoma and the mechanics had a blast fixing the problem and putting it back in the right way with the right bolts and some good ole' locktite, I still check every now and again but knock on wood no further problems that was November 2001. Happy 4th to all and I am tired of doing all these parades. Semper Fi
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