Carburetor questions

[rblote]

Hi all, I hope that one of you know how to solve my problems
This is the carburetor I ordered. It's exact the same as my old one.

s-l500 by Renee Blote, on Flickr

This is the carburetor I got today.

s-l1600 by Renee Blote, on Flickr

It fits really well. Looks great etc etc but it has a return??? line outlet?? I did not see this till I wanted to start the car and noticed fuel pi$$ing out that outlet thing.
I presume it is a return line or something like that. My fuel pump has 3 lines. I presume that there will be a return line as well. However I have no idea what to do.

I have asked the seller to send me the right 1 but and they might do or do not do this but that's a different thing all together. 

However I am sure that some of you smart people out there can tell me what to do to make this work.

Thanks a lot!!

[ToolsnTrack]

Without a full diagram its hard to say. Also you mention your pump has 3 lines? Realistically it should have one in and one out.

Do you have any more pictures of what you have? If your original pump and carb set up is designed to run with no return you *might* get away with blocking the return on the new carb as i would surmise the pressure offered in supply can be stopped by the float in the carb, but this is all conjecture. To test is simple enough, run a small hose with a blocked bung on the end and see if she runs ok.

I suppose running a return would be out the equation?

[ToolsnTrack]

Actually, did this carb model ever run on twin carb set ups?

Have you got pictures of the carb mounted on the engine?

[vincento]

I’m assuming the original didn’t have a return ? Try connecting a short piece of fuel hose to where it’s coming out of the new carb and bung it with a suitable bolt and try running it. There may be too much fuel pressure and it may flood the carb by overcoming the needle valve/fuel float. If so you’d have to run the hose back to a return on tank or pump.

[Dez]

The third line on the carb and pump will probably be to a avoid the carb airlocking due to fuel evaporation.
Given your location/climate that’s what I’d expect anyway. My Lincoln has a similar setup.

[rblote]

Thank you all guys.
I will try the "bolt/bung" method first.
I'll get some more photo's later.

Happy New year to you all!

[rblote]

AWESOME!!!! The beast runs!!! Is not dribbling!! The "bolt/bung" method works great!!
Thank you very very much!!!!!!

Okay wazzizzit?

old carb by Renee Blote, on Flickr

This is my old carb. You see that round thing with the 2 wires coming out. It ends in that green plug. There is also a little
kind of switch on the side of the carb (follow the blue wire and you will find it)
What does this round thing do?

That green plug connects to this plug near the alternator.
plug by Renee Blote, on Flickr


This is my new carb. Again there is this round thing but this time with only 1 wire and a wrong plug.
new plug by Renee Blote, on Flickr

The car runs great(ish) and appears not to need that round thing. What is the use of that thing?
Thanks again.

[Phil H]

The old 2 wire/new 1 wire device looks very much like an idle shutoff valve to me (stops it running on)?

[Rich]

My SJ413 had an idle up solenoid for when you increased the electrical load. The 410 I had didn’t have it but that was an earlyish Spanish built Santana Landrover one, and being a soft top didn’t really have electrics to ‘load’ the system. I wonder if that’s what it is?

[Phil H]

Jan 1, 2020 10:09:31 GMT Rich said:

My SJ413 had an idle up solenoid for when you increased the electrical load. The 410 I had didn’t have it but that was an earlyish Spanish built Santana Landrover one, and being a soft top didn’t really have electrics to ‘load’ the system. I wonder if that’s what it is?

That would actually make more sense, especially if it’s running without it connected!

[vincento]

Will the solenoid and connectors swap across onto the new carb ?
Just had a quick read on it and as rich says it’s an idle valve. Cuts fuel on over run too I believe.
ETA.
It’s fuel cut off solenoid to stop engine running on when ignition switched off. The idle up valve rich mentions is a vac controlled valve fitted to different models.