M57 s/n 1338 only shuts down with air end on

by Robert
(Hinckley, CA, usa)

Only shuts down with air end on. Sometimes in 30 seconds and sometimes, up to 1 & half mins. Air discharge temp ranged from 121F to 169F. I stuck the temp probe in cold water & no shut down. I'm suspecting a faulty switch. Engine coolant temp was 141F @ coolant temp switch. No problems with engine @ high idle, w/o air end on. What is your opinion?

Comments for M57 s/n 1338 only shuts down with air end on

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Aug 31, 2017
M57 shuts down
by: Doug in s.d.ca.

A bit confusing about what temps - switch you're referring to.

You realize air end off means essentially no load, right?

You may be right about the temp switch. Is the radiator clear/clean and working? Thermostat?


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