Dave Houser wrote:
>
> Getting closer to the problem now.
> Took float bowls apart to check measurements on float level. Noticed
> front carb had more gas in it than the back one. Made a mental note.
> Put things back together and took for ride to see if I was still losing
> power and stumbling at 3500.
> Couldn't find a suitable stretch of road to sustain that speed so pulled
> off road and held throttle to 3500.
> Didn't take long. Sure enough problem still there. Car stumbled and lost
> power. Shut down and released hood to check on which carb was the
> culprit. Only saw pool of gas under car between both overflow pipes!
> Started car and from engine compartment held throttle, revving engine.
> Again, short time later, gas pouring out of front overflow pipe, car
> losses power, then comes to life again.
> So, what do I look for? BTW, these have grose jets in float bowls, so
> don't tell me they are not floodable!
My guesses:
Needle valve failing to stop overflow.
Possible sources:
1) Bit of crap stuck in needle valve, keeping it from closing.
Solution: carefully remove float pivot pin, float and valve from valve
body. pump a tiny bit of gas through, replace.
2) Worn-out needle valve.
Replace with new needle-valve and seat assembly.
3) Punctured float, has gas inside it.
Replace float assembly.
4) Too high fuel-pressure, overpowering needle valve.
Purchase and install inline fuel-pressure regulator (abt $15) and set at
2 pounds or less.
-Rock
--
Rocky, JJ Cale Band & Pratchett Books: http://www.rocky-frisco.com
Rocky's Mini Cooper Page: http://www.geocities.com/MotorCity/6437/
Mini Books: http://www.geocities.com/MotorCity/6437/rockboox.html
|