Quote:
Originally Posted by FJ40Jim
There's a slight glitch in one vac hose. The AC idle up is connected to the emmission spaghetti pipe. Try connecting AC to the AC vac solenoid.
For the spark knock, try swapping the vac hoses on the advance can. That will reduce the vac advance from 18* to 7*.
Just outta curiosity, is there an electric fuel pump right beside the mechanical pump? Which one is in use & why?
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Thanks Jim. I switched the hoses on the dissy and it fixed the knock at 1900RPM. So I'm gonna run a good check on the HAC valve to make sure it passes the tests in the emissions manual.
Oh and thanks on the A/C idle up hose - I missed that one!
Yes I installed an electric pump because my last carb had a leak and all the fuel would empty out of the bowl So I figured I would install a pump to fill it up so I wouldn't have to crank the engine for so long to get fuel back into the carb bowl...don't need it now with the rebuilt carb.
Thanks again for all the help Jim - the motor really runs nice now.