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post #1 of Old 07-13-2019 Thread Starter
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Universal m-18 won’t start sometimes

I have a Catalina 27 with a universal m-18 diesel motor in it. I replaced the glow plug switch about 6 months ago as the previous one was pretty sticky and wouldn’t disengage anymore

Now I have a separate hut possibly related problem: Today I ran the motor for 90 mins while cruising and got to the dock and shut it off for 10 mins. I tried to start it up again and nothing happened. No motor turning over or grumbling - no anything. I waited a minute and tried again and it started right up no problem. This has happened to be a few times now. I’m wondering if my starter switch could need a replacement?

After only sitting for 10 mins after being ran for so long, the glow plugs should not need to be used so I don’t think it’s a glow plug problem but I’m not sure.

Any thoughts?
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