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Old 03-30-2009 | 09:36 PM
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dualrevos
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Default Erratic high idle.... (Video link in post #8)

I'm having a problem with my revo 3.3. It had a high idle problem so I did the leak test and found that my front bearing was leaking BAD. I bought the bearings today, dissassembled the motor... replaced the bearings and did a quick blow on the fuel line and heard no leak at all from the front bearing area. I didn't do a thorough check on the backplate and carb, and I wish I had now, but either way I started the truck up and this time the idle screw actually dropped the idle low enough that the truck didn't move on it's own.... for a little bit. After a few passes, I checked to make sure the HSN was set right, and it seemed perfect... decent smoke and shifting nicely, but then I brought it back in and the idle was high again and this time it was erratic. It seems to me like it's leaking air again, but I also know it could be in the tune. What causes a high and erratic idle, lean or rich LSN? This thing is really really starting to frustrate me.... I have a blast with it, it's just the idle and inconsistant acceleration that bugs me. I'll be driving it for a few minutes and when it's warming up it gets peppier and peppier, then it just starts getting doggy on the low end... GRRRR

PS- I'd post a video of it, but apparently I don't have enough posts on this forum..... again... GRRR

Last edited by dualrevos; 03-31-2009 at 02:08 PM.
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