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I couldn't get out of the driveway with my 900s. I lowered the air pressure until I had substantial squat and drove right out. Be careful when airing them back up. Keep your body parts out of the path of the lock ring.
I understood that and the coolant was replaced. It looked more like there was a short circuit between the actual element and the copper housing as it burned a 1/8" hole through through the housing.
I installed the block heater, refilled the coolant. It sizzled for a second or two and made a popping sound......
I guess that there could have been an air bubble in the water pump but I am still a bit surprised (and disappointed) at how short lived it was.
My truck has had the 331 and 400 gas engine, and now the multifuel. A few of the gasser shortcomings can be easily remedied. The hot start can be fixed by using a better carburetor (Holley 320 cfm economaster) and a 12V armature spins it ove much faster. Electronic ignition and a civilian...
I bought a set of used tires. Two of which have deep tread cuts and more minor sidwall damage. One of the two still has a bolt stuck into the tread. How concerned should I be about being able to safely use the tires?
This will be my last post, I promise.
I agree that a vacuum pump is not EXACTLY the same as an engine. The vacuum pumps that we use do not have any one way valves (turbo, diffusion, cryo, roughing, etc).
Let's look at the case where the intake is open, exhaust is closed, and the piston is...
To a first approximation engines are air pumps and, with the butterflies closed, are vacuum pumps. Obvioulsy, a closer look complicates the analysis. My point is simply that there are no real pumping losses for an engine or pump which is not pumping anything.
No, it still works. The intake valve opens as the piston is on the downward stroke, the chamber is at a pressure less than atmosphere (it takes work to to pressurize ambient atmosphere), the intake closes, the piston moves on the upward stroke which is aided by higher ambient atmospheric pressure.
Sorry, but this is wrong. We have numerous types of roughing and high vacuum pumps at my job. Some of them allow monitoring of instantaneous power. Power drops with pressure. Maintaining a vacuum takes very little power. There are no pumping losses if you are not pumping anything. Whatever...
I don't agree. In my experience, a vacuum pump has much lower loss when operating at a high vacuum. It isn't pumping anything.
To think of another way... Think of the diesel engine compressing the air like compressing a spring. The engine rotates compressing and releasing, compressing...
Maybe this has already been answered but I have not read through all of the posts. I have an old codified law book somwwhere and the requirement did exist for a mechanical connection. I suspect that this was quietly repealed to allow for drive-by-wire.....
Try a local big truck shop; ours had it on the shelf in the showroom. Either way, don't lose sleep about it. I doubt that the military would use 90wt if it was severely detrimental to the transmission life.
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