Kohler Generator stalled and won’t start

[Robert Connolly]

Kohler 15.5EOZ, 2005 with 1,350 hours cut off on me while offshore the other day. Could not get it to restart, It cranks strong but will not catch. I’m assuming something with fuel. I changed the primary Racor (which looked fine) and the secondary engine spin on just to be sure. That didn’t help. I cracked one of the injectors on the engine and cranked – no fuel came out. I worked my way backwards from there and found a line from the fuel feed pump to the engine spin on. I took that line off and cranked again – no fuel came out. I’m assuming I have a bad fuel feed pump, but was hoping someone could confirm before I order one. Thanks!

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[Robert Connolly]

Well it wasn’t the fuel pump

Had changed the filter in the Racor, but got some advice to take it apart. Found this lovely little algae snake in where the ball check valve is. All good now,

1 user thanked author for this post.

Rob Schepis

[Robert Connolly]

Thanks Tony

I followed the service manual testing procedure for the fuel feed pump and that seems like the culprit. New one arrived yesterday and plan to swap them out early this week.

[Tony Athens]

No fuel = No start.. Install an outboard type in-line squeeze bulb just before the left pump–Pump away while cranking and see what happens.. You may have to bleed the system too

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