Search results

I think I have posted this before, not sure. It is a picture of how I welded channel irons to the back of each support arm anchor on the bed of my wrecker. They are very handy when trying to put the travel support bars into the anchors by yourself. You just center the boom, then lower it enough...

Main bearing problems are heard as a dull thump, usually on start-up and under load, especially with warm oil. Rod bearing noise is a sharper double knock, with the same start-up and warm oil symptoms of the main problem. A wrist pin will not usually change tone with oil pressure unless the...

Might I suggest using the stock pto to drive a hydraulic pump for your power needs? This is done on many civilian applications. The pto's have two speeds, which should do all you need. With the idea you suggest, you need a way to disengage the pump from the drive shaft for road travel or you...

We had problems of no power with my son's M139 5 ton bridge truck. We found two problems. The first was the front wheel bearings were bad, allowing the brake drums to rub the shoes. The second was that several wheels had the brake shoe pivoting anchors stuck with rust, which kept the shoes from...

I machine all of my winch shear pins out of 6061-T6 aluminum bar stock. They have worked well for both 2 1/2 ton and 5 ton winches for many years. I have never gotten the impression they either failed too easily or were too hard. If I fail one, I figure I should have used different rigging...

Bjorn: Hello! How go the projects? There is a fuel filter screwed into the fuel pump - hard to see, gold color. My son gets them at the state Highway. When they get in a new fuel pump, the guys throw the filter away because there is a filter elsewhere on the truck. The noise will get...

I am posting pictures of the welder after we painted it and added a fuel tank. I have also included a close-up of the connector and drive adapter. It works very well, having plenty of power. It is much smoother and quicker on the governor than the Wisconsin VF-4 we had on it before! Regards...

Will the civilian motor pump work with changed pulleys?

It can depend on the theater of operation. You have to research for the theater you want to emulate. Regards Marti

A real help is to open up the intake in a convenient place and get warm air going into it while cranking the engine. The best warm air source is an electric heat stripper gun, next is a propane or acetylene torch and for the worriers and attorneys, the usual fire possibility warnings. A careful...

Thanks for the tips about the starters. One would be nice, but it really starts easily with the rope. I will look into costs. Stonepicker1: We have a fuel tank off the Wisconsin we will use when we get it properly mounted. Right now we are temporarily using a fuel tank off a small engine, but...

Let me know if Karl cannot help you out for some reason; looks like he can get your problem solved quickly. Thanks Marti

I bought a 4A032 engine to drive my DC welder. Several years ago I had put a Wisconsin VF4 on it, but it developed a rod bearing problem so I replaced it. It also did not develop high enough RPM to make the welder reach potential. The 4A032 works really well on it. I made the exhaust pipes and...

I have one on a parts truck, condition unknown at this time. I would have a hard time getting it off right now with the snow conditions we have here. It is at the back of one field, and it would be a devil of a time getting under it with all the snow. I assume you are in a hurry for it...

You got me here, but a suggestion. Can you make a metal cover to cover the pump opening with the pump removed and refill the block to see if you see the leak origin? It has been a long time since I had the pump off one of these, so I don't know if it is possible, but it might help give a clue if...

You can add NAPA's Bio Con algae killer to it to be safe, after you make sure you do not get contaminants in it. Algae shows up as a brown deposit in filters and a cloudy appearance in the fuel you might mistake for fine rust. Bio Con cleared it up in my neighbor's tractor. Regards Marti

Tim, I can't tell you from experience what starter to buy from what application. I can say that a starter for any civilian truck or other application using the engine in the same era would probably fit. I am not sure if they were some 12 volt in that era, probably mostly 6 volt, but we have used...

I don't know all of the numbers, but I have a yoke off the rear pinion from a 1953 M-37 if it will help you. It has the flat four bolt flange. I assumed it was for an M37 since you posted it on the M37 forum. Did you mean for the civilian 8 3/4 coarse spline pinion? Apologies, but reading your...

I agree with Desert Fox and jatonka's 8 point socket. I use a torch to carefully heat around the plug, then rap it with a hammer. These plugs have sealant on the threads, so I doubt there is any space between the threads for any blaster or wax to wick down and release them. Regards Marti

Headers are designed to create a negative pressure pulse at the exhaust valve within specific RPM range. They help in spent gas evacuation from the engine cylinder for better purging, creating more room for the incoming charge. They also, by virtue of the individual tubes, keep the other...