RE: CD 150 & questions

From: Jarrid Gross (JGross(at)econolite.com)
Date: Tue Nov 23 1999 - 10:43:28 CST


Scott,

>The rear carb. on my Alpine apparently also has a leak as evidenced by
>the squirting sound of gas (refilling the bowl?) when the ignition key
>is first turned to the run position (electric fuel pump running). I've
>felt a slight dampness on the underside of the carb. but can't determine
>it's source. Also the rear carb. seems to run rich, at least at idle as
>those plugs tend to get black after prolonged idling. Is this a matter
>of adjustment or a symptom of the leaking carb.? Is a carb. rebuild
>something I should attempt or send out? What is the advantage of Grose
>jets?
>Scott Donnelly
>SV

Your problem is your electric fuel pump.
It puts out too much pressure for the stromberg float, needle and seat.
Most electric fuel pumps produce over 5 psig static pressure.
Stromberg floats dont have much leverage on the seat, and cant
tolerate that amount of fuel pressure.

Get a fuel pump regulator and set it to 1.5 psig.

Jarrid Gross



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