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I operate a fleet of engines that each engine operates nearly 3000 hours per year. Weak materials make themselves evident in very short time. Being specific about materials has greatly improved my fleet reliability. The best material is a combination of longevity, cost, and most importantly...

If it's riveted or bolted seams that are leaking you could consider sand blasting the seams and painting on a polyurethane or epoxy coating that completely covered the entire seam, rivets, and overlaps onto the surrounding metal. You can't spot repair lapped seams because it's impossible to tell...

Canvas? 303 Fabric Guard was the best product for boat canvas. A little expensive, it requires reapplication annually here in California. Maybe more frequently in areas with more rain? I do not know the specific material you are trying to seal.

The problem is that there is no circulation so the heat stays at the highest point where it does the most damage, in the heads. Without flow your temperature sensor may not even see this heat. I would minimize the amount of time you run this engine in this condition. A few minutes at idle power...

The only thing about the OEM filters is that there has recently been a Chinese knockoff introduced. You used to be able to go to any parts house and buy their house brand filter for $15 and under their sticker would be the Stanadyne nameplate. Now, most of the parts store filters re $25 and are...

Good news is that Viton does not have a shelf life like other seal materials.

You would certainly do well to select Viton. There are some variations of Viton but they're all excellent for diesel fuel service. The next choice is the hardness. Shore A 75 durometer will be correct for most o-rings. The first problem, however, is going to be identifying the sizing standard...

Please don't say, an o-ring is an o-ring. The material is extremely important to consider to get longevity and low seepage. There are also multiple sizing conventions including SAE, ISO, JIS, DIN. McMaster-Carr has 13,304 different o-ring part numbers.

I see a heck of a lot more square body Chevies on the road than pre-2000's Fords.

If the old housing is letting air in you simply need to renew the seals. Use Viton where you can.

You really should install dowel pins after doing this.

You should probably order a drive gear ahead of time. https://www.aspwholesale.com/starter-parts/delco/drives.html?page=all I think yours is a 40MT but not sure.

Starters have a clutch between the motor and stater gear. When this clutch fails it allows the motor to turn without turning the engine.

I think the rating requirements only apply to P series tires, P315/85R17 and not LT series, LT12.5/37R17 for example.

The VRV and modulator work together to set trans pressure relative to engine torque. Without the VRV you would have one trans pressure over all conditions which would result in two results. You will have hard late shifts at part throttle or slippery early shifts at full throttle. If you use an...

Late to the game here but Crater 2X is the go to wire rope lube. Crater is sold under the Texaco/Havoline names. Chevron sells it as NC 100. The Navy Towing Manual has all of the information for wire rope lubrication...

Interlux InterZinc is an inorganic zinc primer in a rattle can. It's available to boating supply stores.

These engines are very good at starting if you have a working glow plug system. If the starter is spinning the engine you either have bad glow plugs or the injection pump is stuck in shutdown. Do you see white smoke from the exhaust?

Because you're going through the effort of blasting you should consider using an inorganic zinc primer as a first coat for best rust protection. I'm starting to see them available in rattle cans, I'll try to post a product number tomorrow.

There are two Cat Yellow paints. Up to 1979 was called Hiway Yellow. After 1979 is just Cat Yellow or New Cat Yellow.