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By actuator, you mean the solenoid in the center of the housing? if so, they aren't meant to be disassembled. They are removed from the jake housing from the top side by removing the little hold down.There are no factory settings on them. The only adjustable part is where the mechanic sets the...

Heads won't matter, they are the same. To put the 350 injectors in the 250, you need to find out if the cams are the same, the cam is another one of those CPL or performance parts. As for the jakes...turns out? What mean that? They are set with a feeler gauge to .018. You do realize that you...

^^This. It WILL fit, exact same bolt pattern and dimensions, but it won't work very well.

Holset is a better turbo than the VT50. They, the VT50 are known for constantly pushing oil into the intake. The only thing you should need is a drain line conversion and an adapter for the pressure line.

If you are asking if it will fit, yes it will. If it will work, maybe, enough to get you off the road. The biggest difference between a pump for the NHC and NTC is no turbo. The NTC pump has what is called an AFC, Air Fuel Control. This part is needed to let the pump make fuel pressure. As the...

The coppers are the copper sleeves in the head that are at the bottom of the injector bore. Coolant is on the other side of them, it is thin copper to cool the injectors. If the cooling system has been neglected, the same type of cavitation, erosion, electrolysis can happen to the copper where...

Coppers, air comp head, rain water....

A tappit/cam failure will make a chuffing sound in the intake or exhaust. A loose or tight overhead set will cause the same symptom. Easiest thing to do is pull the lid and take a peek at things. See if you can spin the pushtubes on the cylinders with closed valves, this will show a bent...

Nope, the pump needs to come off, but not disassembled. the drive can be pushed out of the front cover by removing the drive coupling and lightly tap the drive gear/shaft out. Let me look around, there might be a set of tac drive parts in my box here or at work. There is a tool to remove the...

I had one too but only at 35-40 and on a dirt road. This is ONE of the reasons I sold my truck. At least the truck above had power steering, there was some control before wadding it.

Is the 350 a small cam or BC1?

Like what parts?

They, the cooling nozzles, are inserted into the block from the exhaust side at the main oil rifle, from the outside. Internal nozzles didn't happen until the L10 series came into being. The NHC IS an 855. there were also other 855's produced that were turboed and had no piston cooling nozzles...

If the rpm is staying steady and road speed is falling off, you have a trans issue. When road speed falls off, the engine rpm should follow it to the downshift point. if you start up a hill and the rpm is say 2000 and as you climb the rpm stays at 2000 and the road speed falls there is a drive...

The throttle shaft comes straight out of the pump. the throttle lever can be moved to whatever position is required on the shaft. Just remove the nut and bolt, use a flat blade screwdriver to move the lever positoition you need

The unloader is probably carboned up. High idle hours does this. ATF can de carbon the unloader, it is high detergent. You can try removing the inlet hose and pour a teaspoon of ATF in the hose, let it sit overnight. the ATF should loosen the carbon and free up the unloader discs/valves. The...

Get a couple of lines for the supply and return, run them into a bucket of clean fuel and see what happens. If the issue goes bye-bye, the issue is in the delivery or supply circuit, the lines like recommended above. If it still happens, there is too much throttle leakage in the pump.

It takes a special tool, not so much to get it out, but to get it in w/o damaging it.

Oops!

Here's what I have seen. This engine is used heavily in the vocational market, lots of trash trucks run them. For some reason, one of the local companies likes to use starting fluid, a lot of it! on 2 of 5 that ware brought in in this condition, stuck rings from over either injection, I have...