Duke
It is normal for the carb to percolate; I'm not sure about the
filter, mine is a steel canister at the engine. If you have one of those
clear fuel filters with the replaceable elements; get rid of it. A friend
of mine had one of those burst on his 68 Mustang; fortunately the engine was
cold. Apparently the clear section does not heat cycle well over time. I
have one on my Tiger but it is before the fuel pump and is not subjected to
high heat. I also had that filter clog up with paint flakes at the inlet,
the flakes never got to the white filter section so I did not see the
problem until I took everything apart.
I would also make sure that there is not a vacuum forming in the
fuel tanks; this is a vented system and the pump will not work against a
vacuum. There is a vent hole at the bottom of the fuel cap; you must be
able to suck air through it or a vacuum will form.
As with any problem; never assume anything until you have checked it
out thoroughly.
Ron Fraser
-----Original Message-----
From: Duke Samouce [mailto:wsamouce@kc.rr.com]
Sent: Friday, June 27, 2008 9:40 AM
To: rfraser@bluefrog.com; tigers@autox.team.net
Subject: RE: [Tigers] Had to abort the drive to Big Bear :>(
Thanks all for the multiple return comments to me personally. Some great
information!
There has been some questions asked and here is some more info.
Coolant temps - I have my radiator recored recently and have done most of
the proven modifications to the cooling system. My coolant temps did not
get above 185 at any time during the trip. I am very happy with the engine
cooling.
Fuel peculation/vapor lock...etc. I am sure that the fuel is vaporizing in
the line because when I was having these problems I opened the hood and
looked at the clear fuel filter in the engine compartment. I could see lots
of vapors being forced into the filter from the fuel pump side. I have
noticed this happening here in Kansas when the car sits after it is fully up
to temp and high ambient temps. Its is like an old coffee pot with the clear
top, it peculates like that. When the car would flat out stall at very slow
speeds, I would check the filter and it would be completely empty. This is
after replacing the fuel pump. The pump I installed is a 30 gph 4-6 psi
pump. There was not any restriction in the old fuel pump filter and I have
never seen any contaminants enter the filter in the engine compartment.
Thanks again for the comments and encouragement guys! It helps take the
sting out a bit.
Duke
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