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I tore down a multi over the holidays which had a leak on #1 cylinder. The head nuts were all noticeably looser in this area. I know that the new gaskets don't need to be re-torqued. But, would it hurt anything to do so?

It appeared from your post that you were suggesting that the multi was a redesign of the tractor engine and that they were pushing the rpm ratings and horsepower compared to the tractor engine when designed. The multifuel was specifically designed for the application as a multifuel military...

This is complete misconception. The multifuel was a nearly complete redesign of a Continental series of engines; NOT a redesign of a tractor engine; and NOT a modified gas engine. The tractor came decades later. The engines from which the multi was derived had similar horsepower and operating...

My son and I took my bobbed deuce to a local tractor show. I have full rear exhaust and we were able to drive at 55 mph without ear protection and converse without yelling at each other; just speaking in a loud voice. When we drove into town, I began to hear this obnoxious racket. I thought...

I'd be curious to know if they are any quieter.

Many gas engines had positive crankcase evacuation systems at least as far back as the 1940s. This was the first environmental control implemented and started in California.

The turbo part number for the late LDS427-2 is 109126384 / 4D454C. If you search, you can find one on a popular auction site using 10912638. Looks to have an archaic turbine design.

None of the new ones that I have purchased from ebay made anything but a whirring sound.

Don't flex too bad. The fan was into the side of the radiator. Thankfully the fan belt was a little loose.

I put the hella H4 lights in my truck and it was a complete plug and play.:confused:

Out of curiosity, what caused the failure?

It played a small part in it. They were new injectors from "Memphis Equipment" not recommended. Still not following how timing caused or contributed to the failure of the injector. Who is the manufacturer of the injectors?

A good overview can be found here: http://www.fastenal.com/content/feds/pdf/Article%20-%20Screw%20Threads%20Design.pdf

Fastenal has a line of grade 9 nuts with Ecoguard coating that withstands 1000 hours of salt spray. However, the thread class is 2B.

OK, it was just a injector failure; nothing to do with timing.

It takes 3k+ psi to open an injector; how does an engine develop enough combustion pressure to force it open and damage both the injector and line?

Thanks. It's a 3B.

I am doing head gaskets on an LDT and thinking about replacing some of the rustier nuts. Anybody know what class of threads the stock nut has? 2B, 3A or ?

Yes, it is an OH200. A very nice engine. They seem hard to find but I do know where a few new ones are. Hard to say on fuel consumption; probably depends more on load than anything else. The guy I bought it from had one in a Reo truck that he drove on the interstate to truck shows. I don't...

I've had good luck with Olsons for my reo 400. However, it should be easy to make a gasket this simple.