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| been kinda watching your threads with your perkins,I have a 214s w/that motor,you may have a small steel line that looks like a fuel line going from a small diaphragm on your injector pump up to your air intake,when idling it creates no pressure but when revved up turbo pressurizes the diaphragm to kick in more fuel at the pump,if that diaphragm leaks excess diesel fuel will reverse into intake manifold when idling causing very rough and over fueled running,they do fail from time to time.you could unhook it and see if it straightens out,i don't know if yours is like that or not,i think they call it turbo boost,hope this helps, | |
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Perkins 4.236 timing - looks good - rats
