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Sullair 185 diesel will turn over but won’t start

Published Categorized as Air Compressor Won't Start, Sullair 10 Comments on Sullair 185 diesel will turn over but won’t start

by Kelly
(Butler MO)

Sullair 185 will turn over but compressor won’t start even by spraying a little starting fluid in breather.

Sullair 185 air compressor
Sullair 185 air compressor

Is there a disconnect at compressor so it won’t pump while trying to start?

Starting fluid should at least make it fire shouldn’t it?

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Sullair diesel no start
by: Doug in s.d.ca

<<< Starting fluid should at least make it fire shouldn’t it? >>>

Yes, although that’s a dangerous thing to do…

Having said that, sounds like no compression.

The airend should be unloaded during start phase,

If it is cranking, and you feel air going in the intake, then it’s either rings or valves or timing gear. Might also be not enough air into cylinder – check the intake filter, or maybe remove it temporarily to test.

You didn’t let it run dry (fuel), did you?


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By Aidan Weeks

A passionate Mechanical Engineer with endless enthusiasm for fluid power - building off the back of over 18 years of high quality contribution and discussion stimulated by Bill Wade here at About Air Compressors. With both practical and theoretical experience in pneumatics and hydraulics, I'm putting my knowledge to work - and working my grey-matter through my research, assistance and publishing work here at About Air Compressors. Feel free to reach out any time! P.S. A HUGE shout out to Doug who really offers such great value to all visitors to About Air Compressors - once again, feeling like I'm standing on the shoulders of GIANTS by getting to work alongside such a great community

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