Mark3395
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- Location
- Geneseo Illinois
M1079 Right Front hub failure update... and more
OK, I have a good update of the long saga of the troubled recovery of my M1079 van. I need more parts but the main battle is won.
Picked it up at Ft. Riley... and it was noisy as I drove. Seemed to be a lot of noise (of which more later) and lotsa noise from knobby tires. Nice and new. Little did I know that masked in the new tires and unfamiliar new truck, the hub was quickly eating itself up in protest for total lack of lube in the right front hub.
It took a while to learn about that. We drove to a gas station to top off and noted some oil leeking. Found 3 pan bolts missing, a bolt supposedly passing through a water pipe clamp and the front cover ahead of the fuel pump, fan loose, alternator loose, and belts turning on themselves. Fortunately the Son of the woman working the station is a Diesel mech and he fixed the fan and straightened the belts. They tightened up as the fan was tightened but the alternator wasn't in it's full outward position because its bracket was missing. It seemed tight enough to progress though. More of this later.
Two miles further down the road the van suffered massive grinding in right front hub and I ground to a halt. Removing the cap revealed a massive collection of steel shavings that had previously been parts of my planetary gears. They were toast. Bottom line is that those hubs need to be filled with lube... not being familiar with the lmtv I didn't check. Was advised the truck had just come out of the Ft Riley rebuild shop (good reputation from what I'm told) but I suspect it was coded out as not economically repairable due to the front axle.
![Hub.jpg Hub.jpg](https://www.steelsoldiers.com/data/attachments/365/365204-8603ad1a6ba12f2eda0f06742594274c.jpg)
Got the truck recovered to the mechanic's shop but then needed to get the hub repaired. NPT provided good info re axles and saved much trouble.
Ironplanet responded well to my call for a claim. They paid a bit over $1900 after the $750 deductible. That paid for the mechanic, towing, and an axle that provided all parts needed... plus others of course.
Turns out there was more.
The mechanic (Tony Moseby) switched out the planetary gears (and more) and we filled the hub.
I'd bought bolts to replace the missing ones and had a friend fabricate a new alternator bracket, but upon shifting the alternator Tony found the missing one hidden under the alternator. The homemade one was based on dimensions found on PartsTarget and would have worked fine, but it was good to have the original. We took the truck out for a short test drive.
And that's where we learned why the loose alternator, fan, and the missing bolts were as we found them... the water pump gasket failed. Seems that it had been replaced or was being worked on, and getting to it required loosening/removing some parts. Sooooo.... we cut and installed a new gasket.
Seems we used too much Right Stuff to get it to seal... as soon as I hit I-70 and got to full speed that gasket blew and the engine heated up and the red STOP light came on. I obeyed.
OK, we then went to the nearest Cat dealer and got a proper gasket. Cat doesn't glue that gasket in, and we didn't either.
Took the truck out for another test and the pump gasket held at full temp and speed... life was good. We headed out. The truck drove well, if not a bit bouncy at times. Nice vehicle.
Got to the western end of Kansas City rail yards and all **** broke loose. Buzzer alarmed and the STOP sign came on again. I noticed that engine oil pressure quickly reflected 0. John in the trail vehicle noted the oil blow and I had the truck stopped very fast. Oil all over the road and engine, rain falling, light fading, traffic whizzing by on the overpass. Not good. Couldn't see what happened.
A quick look at the Iphone found a towing outfit just across the tracks... Midwest Towing as I recall. They recovered at a reasonable price and let me store it for a week... bad weather was moving in so we retreated 400 miles home. Came back a week later with my M915A1 and hooked up to the van and towed it home. 420 miles. Slow. The hookup was actually quite good though, and the tow was safe if unfamiliar. Had plans A, B, and C for various elements of the tow and it was a good thing as plan C for tail lights... 12 volt trailer lights hooked to a battery in the van... was needed. Made it home in about 11 hrs.
When the oil was off the engine the cause of the oil leak was easily found... a "tube assembly", figure 29 item 35 connecting the fuel pump/governor or whatever all it is fractured and oil spewed out. $25 and a trip to Cat got it replaced in minutes, along with the seals under it.
So today the truck starts and runs... no leaks. Sorta knocks for a few seconds upon starting.
And as to the bouncy ride? Might have something to do with the two stabilizer bushings that hook the top of the stabilizer bar are missing. See figure 182 of TM9-2320-365-24P, item 13. I'm now on the look for two of them.
I'll post pics and contact info for Tony Moseby. He's about 30 miles East of Ft. Riley and I recommend him.
More later. Mark3395 BTW, if you have a source for those bushings please advise.
OK, I have a good update of the long saga of the troubled recovery of my M1079 van. I need more parts but the main battle is won.
Picked it up at Ft. Riley... and it was noisy as I drove. Seemed to be a lot of noise (of which more later) and lotsa noise from knobby tires. Nice and new. Little did I know that masked in the new tires and unfamiliar new truck, the hub was quickly eating itself up in protest for total lack of lube in the right front hub.
It took a while to learn about that. We drove to a gas station to top off and noted some oil leeking. Found 3 pan bolts missing, a bolt supposedly passing through a water pipe clamp and the front cover ahead of the fuel pump, fan loose, alternator loose, and belts turning on themselves. Fortunately the Son of the woman working the station is a Diesel mech and he fixed the fan and straightened the belts. They tightened up as the fan was tightened but the alternator wasn't in it's full outward position because its bracket was missing. It seemed tight enough to progress though. More of this later.
Two miles further down the road the van suffered massive grinding in right front hub and I ground to a halt. Removing the cap revealed a massive collection of steel shavings that had previously been parts of my planetary gears. They were toast. Bottom line is that those hubs need to be filled with lube... not being familiar with the lmtv I didn't check. Was advised the truck had just come out of the Ft Riley rebuild shop (good reputation from what I'm told) but I suspect it was coded out as not economically repairable due to the front axle.
![Hub.jpg Hub.jpg](https://www.steelsoldiers.com/data/attachments/365/365204-8603ad1a6ba12f2eda0f06742594274c.jpg)
Got the truck recovered to the mechanic's shop but then needed to get the hub repaired. NPT provided good info re axles and saved much trouble.
Ironplanet responded well to my call for a claim. They paid a bit over $1900 after the $750 deductible. That paid for the mechanic, towing, and an axle that provided all parts needed... plus others of course.
Turns out there was more.
The mechanic (Tony Moseby) switched out the planetary gears (and more) and we filled the hub.
I'd bought bolts to replace the missing ones and had a friend fabricate a new alternator bracket, but upon shifting the alternator Tony found the missing one hidden under the alternator. The homemade one was based on dimensions found on PartsTarget and would have worked fine, but it was good to have the original. We took the truck out for a short test drive.
And that's where we learned why the loose alternator, fan, and the missing bolts were as we found them... the water pump gasket failed. Seems that it had been replaced or was being worked on, and getting to it required loosening/removing some parts. Sooooo.... we cut and installed a new gasket.
Seems we used too much Right Stuff to get it to seal... as soon as I hit I-70 and got to full speed that gasket blew and the engine heated up and the red STOP light came on. I obeyed.
OK, we then went to the nearest Cat dealer and got a proper gasket. Cat doesn't glue that gasket in, and we didn't either.
Took the truck out for another test and the pump gasket held at full temp and speed... life was good. We headed out. The truck drove well, if not a bit bouncy at times. Nice vehicle.
Got to the western end of Kansas City rail yards and all **** broke loose. Buzzer alarmed and the STOP sign came on again. I noticed that engine oil pressure quickly reflected 0. John in the trail vehicle noted the oil blow and I had the truck stopped very fast. Oil all over the road and engine, rain falling, light fading, traffic whizzing by on the overpass. Not good. Couldn't see what happened.
A quick look at the Iphone found a towing outfit just across the tracks... Midwest Towing as I recall. They recovered at a reasonable price and let me store it for a week... bad weather was moving in so we retreated 400 miles home. Came back a week later with my M915A1 and hooked up to the van and towed it home. 420 miles. Slow. The hookup was actually quite good though, and the tow was safe if unfamiliar. Had plans A, B, and C for various elements of the tow and it was a good thing as plan C for tail lights... 12 volt trailer lights hooked to a battery in the van... was needed. Made it home in about 11 hrs.
When the oil was off the engine the cause of the oil leak was easily found... a "tube assembly", figure 29 item 35 connecting the fuel pump/governor or whatever all it is fractured and oil spewed out. $25 and a trip to Cat got it replaced in minutes, along with the seals under it.
So today the truck starts and runs... no leaks. Sorta knocks for a few seconds upon starting.
And as to the bouncy ride? Might have something to do with the two stabilizer bushings that hook the top of the stabilizer bar are missing. See figure 182 of TM9-2320-365-24P, item 13. I'm now on the look for two of them.
I'll post pics and contact info for Tony Moseby. He's about 30 miles East of Ft. Riley and I recommend him.
More later. Mark3395 BTW, if you have a source for those bushings please advise.
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