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Would it be a thread hijack if the owner of the truck participated in the redirect? hahaha. Hydraulic layout can be chaotic, especially when there are design problems like what happens on military contracts. Designer A doesn't talk to Engineer B and assembler C has to figure out a way to make...

TM's for the m809 series 5 tons http://www.steelsoldiers.com/showthread.php?121483-TM-s-for-M809-Series-5-Tons

Exhaust brakes have been available for decades, might be able to find one in a scrap yard. They are not engine specific. The exhaust valve springs on a multifuel are strong enough for a exhaust brake. Jake brakes are engine specific and none are made for a multifuel. Only engines that they are...

For the older m39 series trucks there is no jake brake available for the engines they used. A exhaust brake will work and is relatively cheap. The electric brake looks like another option but has 2 challenges over a exhaust brake. 1. Cost. 2. Mounting location. With the shorter wheelbase of...

That would be a fun daily driver

Would love to see that. Do you think modifying a standard wrecker bed to become an excavator would be a viable option? I glanced at used excavators in my area and the cost is about 30k on average for a rough unit of proper size. I have a picture in my head of a modified crane (standard 816...

Yea hydraulic setups can become chaotic the more systems you add. With the drilling rigs I worked on there was 2 separate systems. 1 for the top drive running 2 1/2-3" hoses and the other was a "smaller" PTO powered pump running to a different valve bank with between 12-18 valves. Each valve was...

How much would it cost to get a replacement wrecker bed? Figuring the weight of the bed is somewhere in the 16-18k range a bed swap is doable with another wrecker using the boom supports. I wonder how feasible it would be to modify a wrecker crane into something like a truck mounted excavator...

Remote mounting the pump would be pretty simple. A hydraulic pump only has 2 hoses running to it. Low pressure coming from the tank and the high pressure leaving the pump. The 90 degree gear box would be replaced by a 2 port hydraulic swivel (current hoses are probably long enough to be reused...

Those electric lift pumps from the manufacturer only have enough suction if the fuel filters are full and the fuel lines have absolutely no air leaks. Once the lines are about 6-12 months old they can't prime a empty system anymore. Alot of my roadside calls as a mechanic was for that...

Your luck lately has been bad, no other way to put it haha. If it is the tcase and you want to save some money I have a T138 sitting here from that dump truck I've parted out, shoot me a pm or text if interested. Hopefully it's just a ujoint though. As for doing the swap to a 10 speed, I would...

Here's fine

It's a proven method for priming the fuel system. Even on brand new class 8 trucks and equipment.

Last time I was in Arizona I took a look at the rear winch setup on a m936. Same exact winch as the m816 but one big difference. on the m936 the gears on both the hydraulic motor and the winch are the same size, kind of small. On the m816 the PTO drive gear is small like the m936 but the gear on...

In my experience working on the hydraulic systems in the oilfield it's normally not the cylinders that start leaking. Usually the hoses or the fittings are the culprit. When the cylinders did fail it was usually because crap got stuck in the seals and being that the telescopic cylinder is inside...

possibility as time goes on. The initial idea with the on board hydraulics is to power a trailer. Going to take whats left of the m51a2 I parted out and turn it into a trailer with multiple platforms, similar to Soni's FEMMT build. Dump bed, water hauler, whatever is needed. If I start making...

Yea theres a bunch of PTO shafts/linkages on the m816 wreckers. Really funny part is I'm going to add 1 more on mine haha. Got my hands on the subframe/components from another m51a2 dump truck and going to remove the pump/valve from the subframe and relocate it to the m816, powered from the rear...

Tried messing with it a few times. When loosened off at the tcase then it doesn't catch at all. Plenty of material on the shoes and the mechanism appears to be moving correctly. Kind of a moot concern on this particular wrecker though since it's sitting like this and will remain immobile until...

http://www.roscommonequipmentcenter.com/TM%209-2320-260-34-2.pdf Chapter 15 covers the different beds on the m809 series trucks. Should at least have a diagram on there. Haven't found this TM on this forum. We have volume 1, but not volume 2. Diagram on page 514 starts to cover it. TM calls...

No. My stock parking brake has proven to be too unreliable. With an 1/8 of a turn on the lever in the cab it goes from zero clamping ability to requiring a 18" cheater pipe to get the lever to move all the way up, which flexes the floor of the cab from pulling so hard. Can't tighten the cable on...