I went through this with my '78 Spit as well.
The gauge only read 1/4 to 3/4. Never went to E or F.
I ended up finding out the sender unit in the tank was
hanging up on the siphon tube that runs down into the
tank from top to bottom.
Actually the trunk side of the tank had been bent in a bit and the
float arm was hitting this feed pipe limiting it's total motion range.
I pressurized the tank to blow it back out into shape.
Viola! E to F plus some!
-----Original Message-----
From: Patrick Baize <speedracre@netzero.net>
To: Atwell Haines <carbuff@nac.net>; Spitfires@autox.team.net
<Spitfires@autox.team.net>
Date: Saturday, March 25, 2000 11:32 AM
Subject: Boy! Am I Rich! Part III (and Question)
>
>Hi All
>I just filled her up and my mileage was 24.6 mpg up from 18mpg. Tail
>pipes are looking cleaner. It is getting there. I'll keep working at it
>Atwell.
>
>I've been driving my Spit With a gallon gas can in the trunk. I've run
>the tank dry to see where the gauge reads when Empty. I still showed a
>little over a 1/4. Any thoughts on this appreciated.
>
>Fortunately , I was about an 1/8 of a mile from an Exxon station and was
>able to sputter in . Put in 8.437 Gallons. Definitely Dry.
>
>Now for the interesting part. I always use Texaco premium. This is the
>first time I used Exxon Premium. The Spitfire ran NOTICEABLY Better. I
>know on long trips I took with my guzzling van, that I had better gas
>mileage when I filled up with Exxon Fuel. (Something to investigate)
>Lets see what kind of mileage I get with this tank.
>
>THnx
>Pat
>63 Spitfire (still waiting)
>74 Spitfire (gauge or sending unit problem)
>68 Chevy C10 (currently working on)
>
>http://www.dol.net/~starborn/artvango.html
>
>
>
>
>Atwell Haines wrote:
>
>> Patrick,
>>
>> When I got my '79 running the ZS carb had a worn jet. Best mileage was
20 MPG.
>>
>> With a "new" used carb (properly rebuilt of course) I'm getting more than
>> 30 MPG.
>>
>> Set your sights higher! :)
>>
>> PS I found I had to re-set the timing once I got the car to idle
>> better. And, I tuned the mixture by checking the plugs. (They should be
>> brownish-white after idling a minute or two.) Change the mixture screw a
>> quarter turn at a time, CW = rich and CCW = lean.
>>
>> Atwell
>>
>> At 08:36 PM 03/23/00 -0600, you wrote:
>> >Atwell
>> > I will check the jet, no one mentioned that. I did replace the
O-ring
>> > , that
>> >was a breeze. What I found was that the previous owner had the needle
cranked
>> >all the way up. This was probably so he could keep the engine running
with his
>> >screwed up carbon canistor hoses 8^}. Anyway , I have the bottom of the
>> >needle
>> >holder in line with the bottom of the piston. Had to readjust the timing
and
>> >Idle.Getting a tan color to the exhaust now, runs smoother at idle. Had
a
>> >half
>> >tank of gas when I made the change. I was getting 18 mpg. When I filled
up it
>> >was 21 mpg. Next Time I fillup, I'm hoping for at least 25mpg.
>> >
>> >It is a Stromberg 150CD
>> >
>> >THnx
>> >Pat
>> >MORE PROGRAMMING AND DOCUMENTATION THAN DRIVING :-(
>> >
>> >
>> >
>> >Atwell Haines wrote:
>> >
>> > > At 08:42 PM 03/16/00 -0600, you wrote:
>> > >
>> > > >Terribly Rich, Black Soot building up on the tail pipes. Avg 18 mpg
>> > > >still better than 8.5
>> > > >
>> > > >Its a rebuilt stromberg. Dash Pot oil keeps disappearing.
>> > > >
>> > > >I know I can adjust the needle down, but what I must do first is get
the
>> > > >seal in the dash pot fixed. Has anyone ever done this? If, so whats
the
>> > > >proceedure to pull the needle and adjusting thing out? My books are
>> > > >vague and I don't want to break anything.
>> > >
>> > > Patrick,
>> > >
>> > > Didn't see an answer to this question...(I'm trying to catch up on
the
>> > mail)
>> > >
>> > > If your engine is really rich you must first look at the needle jet
>> > > hole. Take out the air piston and use a magnifying glass to look at
the
>> > > hole. Should be round, not the least bit egg shaped.
>> > >
>> > > The leaky o ring would cause a lean condition. So if you fix that
you'll
>> > > surely burn you car to the ground!
>> > >
>> > > I have a procedure for replacing the oring if you want it, but check
out
>> > > the jet first.
>> > >
>> > > Is your Stromberg a 150CDE?
>> > >
>> > > Atwell Haines
>> > > "More driving than computing lately"
>> > > '79 Spitfire
>> > > Succasunna, NJ USA
>> >
>> >__________________________________________
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>
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