• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
  • When posting a classified ad, you MUST select a prefix from the drop-down next to the subject line. If you don't you will get an error and your ad will not be posted!
Tips
Tips

TR2/3/3A TR3A Vapor Lock

Share this page

Howdy Folks,

Well; Yesterdays test drive "Did`nt" go as planned.

I`m buying a "Re-Build" kit for the Feul Pump today. That should solve the problem.

"Thanx" to All for the Input.

See Y`All back here soon with my `57 TR3.

Regards, Russ
 
Howdy Folks,

I`ve done just about everything relative to the "Feul Flow"; New Mech. Pump, Wrapped the line, re-set carbs etc etc (No clothes pins yet). I still get an intermittent feul flow especially going up an incline.

Has anyone here installed an "In-Line" pump while still using the existing "Mech. Pump"? I`m concerned about flooding the carbs but just may generate enough flow to overcome any "Vapor Lock" happenings????????

Thanx,

Russ
 
Sounds to me like you have a problem other than vapor lock. Vapor lock will shut an engine down totally most of the time as no fuel can get to the carb due to the air lock. Also you say it does it more while climbing an incline, (hill). Sounds like a vacuum problem to me, either in the distributor or carb and possibly both. Is the engine timing right on? A wobbly shaft in a distributor will drive you crazy with all kinds of symptoms also. My 72 "B" did that until Jeff rebuilt the distributor and all the problems went away. PJ
 
Perhaps I missed it; why do you even think this is fuel related?

Personally, my first step would be to connect a fuel pressure gauge at the front carb. Add a long enough length of line that you can lead the gauge out from under the hood and prop it under a wiper, so you can read it when the problem is actually happening. That should instantly confirm or deny that your problem is fuel delivery to the carbs.

Most vacuum test gauges will also read fuel pressure, eg, https://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93547
 
tdskip said:
TOC said:
Or, good old-fashioned wooden clothespins on the line.
Click to expand...

Is the idea being that these take the heat out of the fuel line???
Click to expand...

I've been driving Flathead Fords since 1965.
Still. Even this morning.

One of the "old-timer" tricks was clothespins on the fuel line.
They preferred older "hickory" wooden pins, if I remember correctly.
They act as heat sinks, kinda like hemostats on an electronic component when soldering.

How in the world wood would be effective (wood would?) I ain't perzactly certain, but I STILL see old wooden pins on fuel lines from time to time.
 
TOC said:
How in the world wood would be effective (wood would?) I ain't perzactly certain, but I STILL see old wooden pins on fuel lines from time to time.
Click to expand...
Just a WAG, perhaps the moisture in the wood (absorbed from the air when cool) evaporates when they get hot and provides a small cooling effect.

Or maybe it's just a myth (like water flowing too fast through the radiator). But like TOC, I've seen old cars with clothespins, sometimes many of them, on the fuel line.

O'course, I've also seen voodoo dolls hanging from the hood prop
grin.gif
 
I had similar problems;
Did the coil change, moved it temporarily to the fender- no help-
rerouted and insulated the fuel feed line-no help
When I removed the fuel inlet line to the fuel cutoff valve, I notice that I had very little flow! I blew through the line, and presto- a gusher-
Apparently some trash in my tank blocked the fuel outlet. It would come and go, sometimes working perfectly.
I remove the fuel outlet fitting, installed a short 1/2" pipe to raise the fuel pickup level inside the tank, and no more problems.
Let me restate that- no more fuel delivery problems
Good luck, Emmett
 
Good Morn`n Folks,

Feul Flow Up-Date on My Bugeye.

Yesterday I installed an "In-Line" pump with the Mech. Pump still connected. She ran just like a "Rolex Watch".

I`ll be posting a pic of my "New/Old" `57TR3 that I`m picking up Sat. 12-05.

Man; Now I have to change my "Avatar" again.

Let the TR3 Restoration begin (Can`t Wait)!!

See Y`All Later,

Russ
 
Back
Top