If somebody running an 4 stroke engine without thermostat, will it harmeful to the engine.

I need some helpfull informations about general grinding precedures. any tip will be helpfull for me .

we have a 4-53 diesel engine i am not much of a diesel person, but this thing has a miss/ low power it is in a log skidder, i was wondering how to test the injectors this is what the owner suspects.

This is really a troubleshooting question: A personal friend who works at this plant brought this up in a casual conversation and made me curious as to what can be done about it.

Are there any kits out there that inject LPG in liquid form so that when it changes state to the gas, it removes the latent heat from the charge air (turbo application) and...

I may try to go pure propane eventually, but for now I want to use propane assist so to speak.

Here is another puzzling one. The engine is a v-twin, dual overhead cam, 4 valve configuration - designed from a clean sheet of paper - not really a copy of anything.

what type of material would be required for such pistons and block to make it tight enough to prevent oil blow by?