Does a remanufactured engine come with a new oil pump?

Does a remanufactured engine come with a new oil pump?

Does a remanufactured engine come with a new oil pump?

I'm thinking about buying an engine with a new oil pump, and then re-installing the old one, since it's going to be cheaper and easier than buying a new one.

Thanks. I just checked. I'm not sure if this is a good idea, but you might be able to use the existing oil filter with the new pump. Just run it through the engine to test it before you put it back together. If you have an oil pressure gauge on the engine, it will help verify that the pump is working.

If you decide to keep the old pump, you'll probably want to replace the seals and gaskets as well. The old ones are probably leaking.

Thanks for the info. I'll probably use the original, but I may swap out the gaskets and seals to make sure it's not leaking.

A few questions: What kind of oil do you use in the Ford engine? What is the difference between the SAE 10W40 and SAE 10W30 oils? Is the 30 better? How do you know what kind of oil to use? Do you measure your oil and mix it yourself, or do you get it premixed from an oil supplier? I would suggest using a Synthetic.

Are remanufactured engines any good?

We had a 2026 Ford E350 (touring motor) that just had it's remanufactured engine replaced. The seller did not say anything about the engine, but we did hear that it was "like new".

The motor has a new transmission with the dealer installed, and the air filter changed. The only problem we have is that the idle won't stay constant, it's a little rough and noisy. When the engine is cold or warmed up, the idle is good.

Can anyone tell us if they think the motor is any good? We plan on using it for our home project, and we will be adding a set of wheels and tires. Thank you When new, I'd expect the motor to burn maybe 3-4 gallons per hour during the worst. That's just an estimate based on my own experience with other reman motors. Most manufacturers now do their best to produce as small a combustion chamber as possible. All that size combustion chamber does is increase heat and pressure. You must remember this thing burns diesel. It will only go 100 MPH with a small volume of fuel going into a large, highly efficient combustion chamber. The larger the chamber, the more fuel is required to spin the engine. A bigger/more efficient combustion chamber produces much less torque than a small chamber, so you'll need more horsepower to get the car moving at all. As you add more horsepower, you also add more weight.

So when you compare new and reman engines, keep that fact in mind. In the case of your E350 the reman engine has never been taken apart from the frame or the cylinder head. It's like new, in fact even the transmission has been replaced. But the problem is, the engine could not spin at the normal rpm without a gear reduction. If there was a gear reduction (in this case a 5th gear), and you wanted to move the car (without adding an electric motor) and drive it 100 MPH. You'd need more horsepower than it produced. So even though it was perfect, it's only worth 80 MPG.

There is no reason to buy one if you can't add the missing components to make it a full performance engine. My engine has a 5th gear, and I have a 3rd gear. The reman engine doesn't make sense. If you don't have the gear, why would you buy a reman?

Thanks for the reply, that makes sense.

WMCW Admin

Reporting on news on topics such as used car industry prices, automobile recalls, site news and updates, opinion pieces about the used car market, and other appropriate automotive information.

Prev Post

Is DPF delete legal in the UK? Nov 5 2026