[QUOTE=funola;2644248]
Quote:
Originally Posted by layback40
You havent considered the original false assumption that the idle or for that matter at any rpm hottest combustion temp is optimal or is what is best for the motor. It is not.QUOTE]
The diesel engine operates on heat. It is heat that drives the piston downward. You are saying hotter combustion temp is not optimal?
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Please re-read my posts. There NO connection between setting the injection timing for highest temperature of combustion at idle & how the motor runs at normal operating revs.
It is NOT heat that drives the piston downward, it is expanding gas.
Motors start injection prior to TDC & there is some initial compression of the burning mixture. This causes increased temperature of the burning charge. Too much temp increase & the fuel explodes instead of burning.
The fuel must burn in a controlled manner & not explode or go "bang". Best you learn what Centane Number means.
In the case of WVO the combustion characteristics are so poor that you need to preheat the fuel to get it to burn sufficiently as to not gum rings. You may notice that sum advance injector timing to try & help when running on WVO.
Please do not throw these one liners in that have no scientific basis.
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I no longer question authority, I annoy authority. More effect, less effort....
1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving