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Lots of blow-by when running makes me think a piston has a hole in it. Did the truck have a large amount of blow-by from the draft tube before? There were a few bulletins advising to crank the multifuel over with the shut off rod pulled to the off position due to the older head gaskets leaking...

Working Man's Truck Up for consideration is an old school M923 that still hauls the mail! It has performed many helpful recoveries from the Iron Planet yard in Albany, GA and has attended 3 Georgia Rallies and participated in 3 Leesburg, GA Christmas Parades. 1 with the Proud American Gun...

I agree with above prognosis and diagnostic procedure. My Deuce had good brakes but an extremely hard to push brake pedal. My results to the above test felt exactly the same with or without air. Changed my air pack and I could lock the rears without lifting off of the seat and regular braking...

I'd check as suggested earlier and ensure the transfer case is in low range. The lever between the drivers seat and passenger bench seat needs to be on the floor. 1st detent from there is neutral, all the way up is high range. My deuce would go slower than my walking speed in low range, 1st...

Ken, You surprised me! I'm glad you have your build sheet as well. Please do as I did and post the RPO Codes and what is typed next to them. Most I could figure out but some cut off short in the description...

Data is always good so here is some from my M1028. I've posted pictures of the build sheet but never close enough to provide any detail. Below are the option codes that apply to my truck. A52: SEAT ASM-BENCH CMD: CHEVROLET FLINT ASM C6T: GVW RATING 9400 LB D1U: GEAR-SPEEDOMETER DRIV E25...

Solid tip Wes. When my injection pump was rebuilt, the shop provided a plug and advised that the injection pump is plenty capable of self priming as long as the fuel filter was full. They were right, it fired up within 30 seconds of cranking after installation.

Mr. James has helped quite a few of us over the years. He's one of those "salt of the earth" members that I'm Proud to call a friend. He even allowed my convoy of Welder1 and PCTrans by on the way home from the GA Rally last year. I think he probably wanted to roll a little slower because I...

The only application that I used non-detergent oil in was the transmission on my M35A2. It has been posted that running 40W nd oil will help lower transmission temperatures by M35Tom. Since he seems to have quite a bit of experience rebuilding and modifying the transmissions in these trucks I...

I voted for Tinwoodsman but it was a difficult choice for me. I love BigMike's Wrecker being a fellow recovery vehicle operator myself but I also love the little Jeeps. I can't afford either but if I had a pile of disposable income, I'd have a Jeep.

Like Simp posted, emergency side on an M809 series truck will have air pressure to the emergency side gladhand anytime the truck has air pressure and the valve just before the gladhand is in the open position. Air pressure sent to the service side is controlled by the air pack which receives...

Plus 1, this was my problem with the exact same symptoms. It feeds air to the "secondary" system once above 60 psi. Your air governor is on the secondary side so when this valve stops working the governor doesn't see system pressure and the compressor runs constantly. Luckily there is an...

ISO Bed? As far as I know only the USMC trucks had those. We only have about 5 or so left locally that have not gone to auction. I'll watch and if one goes I'll drag it home! None of them are runners so they will likely go low.

Blew a birds nest out of the stack and took the truck for an hour drive in the countryside. Truck only sat a week, birds are working quickly around here.

Air system appears normal. I would be more concerned that the voltage gauge stays the same whether the truck is running or not. It appears to have a charging system issue that needs to be addressed.

I've never seen or owned a completely leak free deuce or any other military truck from that era. If it's not bad enough to hit the ground, it's part of the rust-proofing package and messing with it could make a bigger mess of the issue. My deuce kept an oiled passenger side block due to a...

I like being a do it yourself type but when my pump went out 2 years ago I took it to a local shop. It was actually hard to find a shop that would touch an obsolete PT fuel pump around here. They charged $325 to go through it. I took a rusted take off PT pump that I got for free apart and it...

Top speed will increase, acceleration will decrease slightly due to basic leverage. I run 14's on my 5 ton and love the extra speed gained over the 11's. When I wear these tires out the question is whether I give up some top speed with 395's or will it make enough power to run 16's? If you...

I'm trying to picture the allen plugs you're talking about. If they are there to get grease into the knuckle, excess grease gets pumped into there each time you grease the upper and lower kingpin bushings.

Bad treadle valve for both of the above posters is the first place I'd look. Mine does it as well. When your truck is off, press slightly on the brake pedal and see if it stops. There is an adjustment possible and remedied most of my problem. Simp said he'd send me one but stays so busy that...