Weber 40 IDF is dripping Options

[malcolm2]

Nice day for a drive yesterday.... Drove some, filled up with gas and drove a bit more.



Woke up this morning to smell gas in the garage and noticed a pool of fuel on the floor.

I removed the air filter and see a drip in one barrel. 1 barrel is very wet and even has a pool sitting on one side of the plate. The others are wet, so they could be dripping, but less frequent. You know gas, it will evaporate pretty quick.

looks to be coming from the center of #14, Aux Venturi. I removed the Main Jet on that barrel (47 - 50), hoping to get it to stop dripping. I think it stopped.

What is causing this? (IMG:style_emoticons/default/WTF.gif)

I should add that Dual Carbs are new, set up at AC.net... now out of business. Last summer I fully adjusted, and sync'd them. Had been running really well, parked for about a month. Total of about 800 miles on the whole rebuild.

[malcolm2]

new question here tho.....

anyone use a QFT pressure regulator?

This one is giving me trouble. At first I could not get it to go down...... Now I can't get it to go up.

Been trying to see how 2.5 psi does. 1.5 is about as high as I can get it. in the pix below, the engine is idling.

Any tips on what is going on? Is this a crappy regulator? What might be better? Does it take a long time for a SCREW turn to register on the gauge?

I think I will remove it and see what the electric pump puts out on it's own.

I can then maybe take it apart and see if there is something in it....

Other than that, I guess I need to try a better model.

[porschetub]

new question here tho.....

anyone use a QFT pressure regulator?

This one is giving me trouble. At first I could not get it to go down...... Now I can't get it to go up.

Been trying to see how 2.5 psi does. 1.5 is about as high as I can get it. in the pix below, the engine is idling.

Any tips on what is going on? Is this a crappy regulator? What might be better? Does it take a long time for a SCREW turn to register on the gauge?

I think I will remove it and see what the electric pump puts out on it's own.

I can then maybe take it apart and see if there is something in it....

Other than that, I guess I need to try a better model.

Looks like a knock off of the Holley LP one ?,with the adjuster set like that you will be getting full pump pressure , however it maybe ported in a differant way ,unlikely but what happens when you screw it out ? if no result just replacing it would be better ,the Holley 12-804 will suit your needs and a well proven unit , just make sure your pump pressure isn't exceeding the range of the regulator by too much ( 1-4psi ) , by all means remove the regulator as it will give you a better picture and also indicate your gauge is ok .
Good luck ,cheers.
Edit ...what is your pump pressure ?