Author Topic: Hit Miss M92 (Read 2121 times)

Raphael · « **Reply #15 on:** July 13, 2023, 10:22:48 am »

Bonjour Dave,

My engine had already the M3 threaded hole, this is why I tried an oiler, I would not have made a hole by myself to avoid any possible future guarantee issue.

dsenechal57 · « **Reply #16 on:** July 13, 2023, 11:46:54 am »

Thank you.

dsenechal57 · « **Reply #17 on:** July 14, 2023, 08:00:04 pm »

An update:

I believe the issue is in the wiring somewhere. On occasion, I can get the engine to run - sometimes continuously, and other times for 10-15 seconds. Other times, most often, it won't run at all.

I removed the spark plug wire from the spark plug. When turning over the engine by hand and holding the wire a short distance from the spark plug, most often, I do NOT see a spark at TDC. Sometimes I'll see a very faint spark, followed by a "faint-er" spark about a third of a revolution later. On rare occasions, I'll see a good spark.

Not sure what is causing this variation. It does seem to change as I move things around, but that may just be a coincidence.

I've contacted the seller. Hopefully, they'll be able to send me a replacement ignition system.

In spite of the difficulties, I still think this is a neat little engine, and looking forward to having it up and running again.

Appreciate all of the feedback!!

Dave

dsenechal57 · « **Reply #18 on:** July 18, 2023, 04:33:51 pm »

I believe I have found the issue. It appears that there is a defect in the Hall sensor that is causing a double-spark: one at TDC and the other about a third of the way to bottom. I removed the Hall sensor and positioned it higher (so only the bottom would be near the magnet on the rotor), adjusted the timing so the now-single spark would fire at TDC, and it seems to be running like a champ.

On a side note, the folks at stirlingkit had no interest in helping with this, or with providing a replacement ignition system. They only offered me a 15% discount on a future purchase. There are other companies that sell these little engines, so I'd encourage you to patronize them rather than stirlingkit.

I appreciate all of the suggestions and feedback that you folks provided.

Dave

Stoker · « **Reply #19 on:** July 18, 2023, 05:13:49 pm »

Well done on finding and fixing an issue that would have baffled me for much longer!

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Author Topic: Hit Miss M92 (Read 2121 times)

Raphael

Re: Hit Miss M92

dsenechal57

Re: Hit Miss M92

dsenechal57

Re: Hit Miss M92

dsenechal57

Re: Hit Miss M92

Stoker

Re: Hit Miss M92