D1105 failure to start - need ideas

[hagrid]

I knew I saw this somewhere. Turns out, t'was right chee-ah:

OrangeTractorTalks » Kubota’s Super Three Engine Series

www.orangetractortalks.com

 

[Kubota_Mac]

Great that you have it running now.

I know that on my old L185 it would fire off turning slowly when battery was weak. I eventually replaced the battery and the starter and it would spin much faster. The old starter was just so bad that it couldn’t be rebuilt. I think you might be able to get the gear reduction type starter if you want, I didn’t even know to ask about that though so mine is still the old school version.

Does that model tractor have any way to release the compression during cranking which helps mine spin up and then start easily.

What are you going to do to get it spinning faster or do you have any plans other than just happily listening to it running for some time now?

From the behavior of how it finally took off and started, I believe that there may have still been some pockets of air in the injector lines that could not be flushed out with the slower-turning engine. Once it "hit" on a cylinder, the RPM increase helped boot-strap the other lines to clear until all three cylinders fired. The reason I believe this is because, after the first run, I no longer needed any auxiliary batteries or chargers to start the engine at all. The small original battery turns the engine just a portion of a revolution and she starts right up. I now have no blow-by or smoke out the tailpipe! I am ready for another season of mowing. Thanks again for all the information.

 

[North Idaho Wolfman]

From the behavior of how it finally took off and started, I believe that there may have still been some pockets of air in the injector lines that could not be flushed out with the slower-turning engine. Once it "hit" on a cylinder, the RPM increase helped boot-strap the other lines to clear until all three cylinders fired. The reason I believe this is because, after the first run, I no longer needed any auxiliary batteries or chargers to start the engine at all. The small original battery turns the engine just a portion of a revolution and she starts right up. I now have no blow-by or smoke out the tailpipe! I am ready for another season of mowing. Thanks again for all the information.

You might be exactly right!
It should serve you well for many a year!