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Old 10-04-2009, 04:15 PM   #16
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Originally Posted by j_blaze14 View Post
was there a point where the plug burned out?
Yes - I had to replace the glow plug - what does this mean?
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Old 10-04-2009, 04:27 PM   #17
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I am totally confused and very frustrated. I don't know where to turn for help or guidance.

I reassembled the engine and on the first run, the con rod broke where it connects to the crankshaft.

I have just wasted hundreds of dollars and have learned nothing in the process. I clearly have no idea what I'm doing. It seems everyone I talk to has a different opinion. Some say tune the high speed needle first, some say low speed needle. Some say right = richen and some say left = richen. Some say take the temperature at the side, some say at the top, some say the glow plug. When I ask how to know when the high speed needle is at its ideal position, no one can answer that except by saying that it should sound right. When I ask how to know when the low speed needle is set appropriate, I again am told it just sounds right. Unfortunately this doesn't help someone who doesn't know what to listen for.

All I know is I had a new racing engine which couldn't keep up with a used cheap generic engine that had been tuned by the previous owner.

I am no closer to knowing how to tune an engine or even how to start tuning an engine and I am now out a new racing engine.
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Old 10-04-2009, 04:36 PM   #18
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it's very hard to tune an engine over the forum, i take for granted what i know about tunning. i would try to find someone at your local track to help tune. your not over your head, just a stumbling block.
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Old 10-04-2009, 04:52 PM   #19
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Originally Posted by jrwoodchuck View Post
it's very hard to tune an engine over the forum, i take for granted what i know about tunning. i would try to find someone at your local track to help tune. your not over your head, just a stumbling block.
Is the engine salvagable or is it better to start again. For example, the conrod will be ~$40. If I have to replace any other pieces, it will probably be better to start again.

Thoughts?
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Old 10-04-2009, 05:06 PM   #20
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if it's just the rod, i replace it and try again. just make sure you put it in correctly. i don't know that engine so i can't help with proper instalation.
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Old 10-06-2009, 07:10 AM   #21
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What does it mean when the glow plug burns out? Is it too lean or too rich?

Someone mentioned that the top of my piston looked charred, is this related to the glow plug burning out?
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Old 10-06-2009, 09:46 AM   #22
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If filament is not distorted its too rich.
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