Originally Posted by
Chris Peralta
Generally if it is revving high when you are jumping it's either a leak somewhere like said above or your tune is off. The easiest way I have ever found to locate air leaks on my engines is to always keep the externals of the engine and carb very clean. If you start noticing wet buildup anywhere you have a leak. This is not necessarily true on the front bearing, that will leak just from running very rich at times.
How much fuel have you run thru the engine? How is the compression? Also if you run 10-15 laps then come into pit lane to let the car idle for 10 seconds what does the idle do? Have you been killing glow plugs at all?
There is not wet build up anywhere on the engine or chassis. I cannot remember how many gallons. I knew as far as idle, it can at times be inconsistant but I am more worried about the high reving when it jumps which is odd because I am off throttle. I do find myself killing glow plugs and my compression if fair to OK. I plan on taking it apart tonight to check the internals