Paul
There are many things that could be reducing your gas mileage.
Brakes hanging up; check to see if any wheel is hotter than the rest
after run on I-90.
The C-4 is slipping; check and change the fluid if needed.
I found one report on ATF that states ATF fluid is good for 50,000 miles and
then it is about shot and if the running temperature of the ATF is above 210
degrees ( I think thats the right temp) the ATF degrades at a very steep
rate.
The distributor is not giving you the entire advance it should;
check mechanical advance and vacuum advance curves. You can do this with
a dial back timing light and a tach reading meter by turning the RPM's up
and reading the advance change on the timing light. You should see total
advance of around 36 degrees by 2000 to 2500 rpm.
The centrifugal advance could be hanging up or the vacuum advance is
not working properly.
Check the vacuum on the engine and check for any vacuum leaks; the
more vacuum the more vacuum advance you should get. Full vacuum on the
highway can pull the total advance to 50 degrees.
There is an article in www.fordmuscle.com under Tech Dept; Ignition; "Timing
is everything"; I highly recommend reading it plus there are other good
articles in there too.
The carb maybe jetted to rich or the carb is leaking some at the
gaskets. If it is an Autolite carb and you have the carb Tag numbers I can
probably tell you what jets should be in the carb and some of the other
settings.
What type of carb is on the engine?
Do you know what size jets are in the carb?
Do you know what year 302 engine it is?
My Autolite 2 bbl carb has given me from 19 to 27 mpg; depending on
traveling conditions and gas quality.
Ron Fraser
-----Original Message-----
From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net] On
Behalf Of Almjeld, Paul
Sent: Friday, October 10, 2003 10:07 AM
To: tigers@autox.team.net
Subject: looking for some advice
Hi all: I recently bought an Alpine/Tiger clone. '64 Alpine body with
Tiger
II front axle and steering assembly, Tiger II drive train with 2.88 rear
axle.
The engine is a 302 with a 2 barrel carb. The tranny is a Ford C4 automatic.
I expected to get decent performance coupled with gas mileage in the 18-20
mpg
range. The performance is just fine. The mileage is more like 10-11 mpg
while cruising at 65 mph on Interstate 90.
Good plugs, plug wires, Pertronix ignition, timing is correct. No
difference
in mileage whether I use 87 octane or 91 octane.
ideas? Thanks!
Dr. Paul Almjeld
Professor of Music
Dakota Wesleyan University
paalmjel@dwu.edu
605 995 2658 wk
605 995 6171 hm
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