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Just from my experience, if heads and block are straight when checked properly with a certified straightedge and found to be true, no machining needed. I take my hat off to the shop who can prove to me they can set up their head facing machine precisely enough to take exactly .002" off all...

Further information; the manual specifies 90 for 32 degrees F and above, 75 weight for +40 F to -10 F so your 80 would fall roughly into the last temp range. We have never messed with changing oil for the different temps, just using 90 with STP. In cold weather we run the winch PTO with the drum...

My manual TM9-8030 for the truck says one quart each end, GO (gear oil) 90. That is what we use in all of our winches with about 10 to 20% STP mixed in. Regards Martin

After the front has been submerged like this be sure no water and crud got into your front axle, especially at the ends where the steering universal joints are. Check the boots there to see that there are no tears or holes in them. If water and crud got past the boots and into these joints they...

I would first suspect air in the system from somewhere. When you cracked the lines on the injectors did you have all of them loose and crank it long enough to see if fuel came up, 15 to 20 seconds a few times with a pause in between to prevent starter overheating, or just briefly try it? Did you...

The spring people should be able to help you. They can look at your old spring and advise if it has broken or not by the way the end looks. They can advise also about the curve match, new to old. Give them a call or best go visit with your spring. They are the experts (I hope!) Honestly unless...

We use 80W-90 in standard transmissions and differentials in everything including military trucks with Lucas additive. No problems for all my life with it. I do not know where the yellow metal comments/fear got started. we used the same grade without problems without Lucas or other additives in...

This "Made in USA" reminds me that when Japan was known for making cheap stuff years ago they named a city in Japan Usa so they could stamp stuff "Made in USA"!! We had some years of problems getting our plant in China to making good products. Now we have good success, but it has to be...

I do not know for sure, but you might try disconnecting the wire from the sending unit to the gauge on both the gauge and sending unit ends and test for it being grounded somewhere. With both ends disconnected I do not think you should show it grounded when you check continuity to ground. Maybe...

You have to be sure your engine block does not have sediment in it when you install a tank type heater. If when you remove a block drain you have to use a tool to get coolant flow because the hole is plugged with crud beware. This sediment can continue to flow down into the tank on the heater...

We had to remove them from our M35A2 we pull our Ferree 18 ton pintle hitch implement trailer with so we can clear the hitch when turning. As recommended, we made sure to put all of the bolts back in place. I have had to remove them from other trucks also. Over 30 years of using the trucks...

There must be some big differences in both power and speed. A friend of ours used his to tow-bar a disabled M62 wrecker for us. It was slow, foot on the floor going over hills with down shift after downshift and even not able to get up suitable speed on level ground. The truck had no issues with...

Doghead has offered very good suggestions to try. If they do not help I have had gauges that get sticky bearings on the needle that hamper movement. The only cure for that is to replace the gauge. Regards Martin Sacks

We have found that wires on the engine side of the firewall can have corrosion problems right at the end of the connectors where the wire goes into them. The wire can have a short section exposed there due to pulling stress or just old age then corrosion gets in. It can look like the wire is...

Do you remember if you had free play in your clutch pedal? There should be about 1 1/2" of free travel before you feel the release bearing contact the pressure plate fingers. If there is no free play then the relese bearing is constantly in contact with the fingers and will wear out quickly. If...

Do not forget to thoroughly wash out the axle housing where the differential sits and the axle tubes. There may be a lot of metal shavings etc. in there that will contaminate the replacement unit leading to another failure. Regards Marti

Since all else apparently has failed, you might try removing all of the fuel from the tank, go get fuel from another station and try it. We had a real problem like you describe with an M715. We drained the fuel, about 2 gallon left in the tank, put in new fuel and the problem went away. We...

Reference the comments by Another Ahab about a wound from wooden bullets, I have a collection of wartime cartridges stored somewhere. In it I remember a wooden bullet in one of them. I believe they were banned by the Geneva Convention, but that had little deterrence at times! Accuracy had to...

I doubt there is an engine problem but inspecting the cylinder(s) next to the broken stud and the underside of the head will shed more light on it. I would judge the stud was over-torqued or defective. If the stud is broken level or just below the block surface carefully build up a weld bump on...

Phil 2968 is correct. Lapping could destroy the interference valve angle. Checking contact with Prussian Blue as M-35tom says will tell you how the fit is.