John,
the symptoms you describe certainly correspond to the diagnostics from
Dave, I think.
If the fuel level on the "input" side of your carburettor's venturi is
high, stopping the engine will make the temperature inside your
carburettors increase. If the fuel level is high enough, it will make the
fuel expand inside the carb and it can flow over the venturi - straight
inside the intake.
The result will be an engine that does crank but won't fire any more.
And simple method to get it running (without cleaning the sparkplugs) in
that case is waiting until the fuel evaporates or starting with the pedal
down.
Normally, I don't think you need a carb rebuild, rather a fuel level
adjustment via the floating device regulating the carburettor fuel intake.
Bert Van der Stee
72 TR6
-----Original Message-----
From: Dave Brackin [SMTP:dbrackin@charter.net]
Sent: samedi 16 decembre 2000 19:11
To: John Summers; 6pack@autox.team.net
Subject: RE: It's been a while
John,
Sounds like you have a problem with the carbs especially since it will
start
if you hold the pedal to the floor. One or both carbs are leaking fuel
into
the intake when the car is parked. If you try to start it before the fuel
has evaporated you get the problem. Do you smell fuel in the engine
compartment when having the starting problem? Test this theory by pulling
the air cleaner to see if there is fuel puddling in the carb throat. There
won't be much just a bit. But the point is there should not be any at all.
Bottom line is a carb rebuild is probably in your future.
Dave Brackin
TR250
TR3
Austin Mini
Jag XJ6
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of John Summers
Sent: Saturday, December 16, 2000 12:55 AM
To: 6pack@autox.team.net
Subject: It's been a while
Yeh, it's been a while since I have had a problem. Since I got the seat
belt interlock thing figured out I thought all my starting problems were
over. Until yesterday! I can usually count on at least three "good"
starts per trip. I tried for a fourth and sat in a parking lot for an
hour before it started again. Car turned over vigorously, just wouldn't
fire. Finally on the fourth try (one every 15 minutes) it began to get
interested. The next time when it showed interest I held the gas pedal
down and prayed and it ever so gradually took off. Not the best
technique, but it has worked before.
So, what's the deal? This car has NEVER had more than 3 or 4 "good"
starts per trip and God forbid you drive it 50 miles on the interstate
and stop for gas. Better make sure there is a motel nearby.
Any clues or ideas? Like I said, it cranks vigorously. It starts right
up after it has set for over two hours, just don't do the two senarios
above.
John Summers
'74 TR 6
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