"E.Claure" wrote:
>
> Hi list, well it was a great day today because I finished installing my
> standard cam, fixed the oil leak on the front engine cover and installed a
> new crank pulley. I set the valves, put new coolant, fresh oil and plugs. I
> turned the car until I got oil pressure and fired her up. After adjusting
> idle to 900rpm it idled like a dream very soft and steady. I ran the cam
> in and then took the car for a drive. After about five block the engine got
> a bit rough and lost power massively while making a pop pop pop kind of
> noise like a Harley bike as if a cylinder was not firing. Strange thing is
> the oil pressure never dropped and engine never heated above norma op
> temperature. I did mess a bit with the weber carb mixture screw. Could
> this be the problem? engine also diesels a bit when I turn it off. If I
> let the car sit a few minutes it will start fine go a few blocks and then
> loose power. Thanks for any advise. Enrique
My guess: lean mix due to fuel starvation, caused by restricted fuel
flow.
Disconnect the fuel hose from the carb and stick the end in an empty
jar, then power the fuel pump and watch the flow. I'm guessing it
will be less than full flow. If so, might be the pump, a pinched
metal fuel line or clogged fuel filter.
My reasoning: enough fuel flows for idle, keeping float chamber
full, but when you cane it, there's not enough fuel flow to keep the
float chamber full, so it eventually leans out and then finally
kills the engine.
-Rock http://www.rocky-frisco.com
--
Red Dirt Rangers (Rocky on piano): http://www.reddirtrangers.com
JJ Cale Live (w/Rocky): http://www.rocky-frisco.com/calelive.htm
The Luggage Fan Club: http://groups.yahoo.com/group/luggage-fans
///
/// mgs@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
///
|