[Spits] Sputtering when hot above 50 mph

[Greg Stull]

I have a Weber carb. Do they have a strainer? I'll have to check.

I'll do your test as soon as I find a helper. Thanks.

Greg
1978 Spitfire 1500

----- Original Message ----- 
From: "Douglas Braun" <doug at dougbraun.com>
To: "Greg Stull" <gastul at roadrunner.com>; "Spitfire Group" 
<spitfires at autox.team.net>
Sent: Wednesday, July 21, 2010 2:04 PM
Subject: Re: [Spits] Sputtering when hot above 50 mph


> Did you ever resolve the potential fuel flow issue?
>
> If not, here is one test to do:  Disconnect the fuel line at the carb
> input and route it to a  jar or can.  Disconnect the ignition so the
> engine cannot possibly run,  Have a helper crank the starter for a few
> seconds.  You should see a series of solid spurts of fuel from the end
> of the line as the engine cranks.  Even at cranking RPMs, the pump
> should be able to supply more fuel than the engine would consume at
> full power.
>
> Also check for any crud blocking the input fitting on the carb.  I
> think the Strombergs have a strainer there.
>
> Doug