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FE Power Forums => FE Technical Forum => Topic started by: FElove on November 28, 2019, 04:48:27 PM

Title: Comment on how you think my engine is running- vacuum seems low (youtube mpg)
Post by: FElove on November 28, 2019, 04:48:27 PM

My idle seems to fluctuate a little and vac seems low.  What do you think?


<iframe width="854" height="480" src="https://www.youtube.com/embed/QUH72dmouRY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

<iframe width="560" height="315" src="https://www.youtube.com/embed/Hzy6Bsd9_wo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Title: Re: Comment on how you think my engine is running- vacuum seems low (youtube mpg)
Post by: Stangman on November 28, 2019, 05:12:22 PM

Sounds like you need a little tuning.  Maybe set the timing at 14-16 and then see we’re you idle is. It sounds like it’s searching. Adjust the idle mixture screws evenly and your idle will probably go up even more. Set it to were you want it let’s say 900 in general. Then after you have everything approximate then if it’s not good you could look for a leak but it seems like the vacuum is going down while the idle goes low. Start from there

Title: Re: Comment on how you think my engine is running- vacuum seems low (youtube mpg)
Post by: Yellow Truck on November 29, 2019, 11:41:22 AM

I think you will get a better response if you provide all the details about your engine, and then ask a more specific question.

Title: Re: Comment on how you think my engine is running- vacuum seems low (youtube mpg)
Post by: My427stang on November 29, 2019, 02:15:59 PM

Agreed need more info, but if the engine is warm, sounds to me like

1 - idle too low, idle a/f adjusted incorrectly
2 - timing is set incorrectly, and go back to #1