Possible Weber float height problem...?

sen2two · 08-24-2014, 08:25 PM

I rebuilt and turbo prepped my 51 IDA Weber and attempted to start it. It did not feed any fuel. I am assuming at this point that it is my float setting.

Here's my current tune on my street ported 12a:

*Will eventually go blow through turbo

37mm chokes
3.2 Glass ball needle valve
60f10 idle jet
120 idle holder
195 main
150 air corrector
f-3 turbo e-tube

My question is, can I set my float height without removing the Weber? The way I set the height before involved hanging it upside down.

730RWHP12A · 08-29-2014, 06:36 AM

yes, you can set the float with the carb installed. there is a small hole in the top of the carb right above the float, use a small piece of safety wire or a paper clip to measure the height and adjust accordingly.. or they sell a IDA float measuring tool that's pretty trick

https://www.google.com/search?q=webe...rs%3B720%3B568

sen2two · 08-29-2014, 05:54 PM

I got it somewhat figured out now. The car starts up just fine. And I ordered one of those float height sight things from JayCee yesterday. That will help get the float height dialed in.

But the car is so damn rich, it idles for at least 30 seconds after I shut the pump off. Lol...

Any tips in a better starting point?

12a street port turbo

51mm IDA Weber
Black plastic float
37mm chokes
3.2 Glass ball needle valve
60f10 idle jet
120 idle holder
195 main
150 air corrector
f-3 turbo e-tube

730RWHP12A · 08-29-2014, 05:58 PM

what motor is it on? my motor liked F11 E tubes.. N/A p-port

sen2two · 08-30-2014, 02:17 PM

12a street port. As soon as it's running good NA, it's going blow-through turbo. I already prepped the Weber and made a plenum. But I want to make sure it's running clean NA before I tackle the blow-through tuning.

730RWHP12A · 08-30-2014, 02:27 PM

n/a streetport I would run f7 or f11 E tubes and bring your air jet up to 190.. that will be good for n/a

sen2two · 08-30-2014, 07:30 PM

Have any blow-through recommendations? Your the guy to ask...

730RWHP12A · 08-30-2014, 10:25 PM

Quote:

Originally Posted by sen2two

Have any blow-through recommendations? Your the guy to ask...

when you put the turbo setup on, let me know, but for now lets get your car running good N/A

13x · 08-31-2014, 12:04 AM

very interesting .. similarity to the direction I want to go but have yet to get dialed in as NA so everything on hold

tom93r1 · 10-02-2014, 04:42 PM

Do you have fuel pressure regulator? I didn't have one on my DCO for years because I read that with the Carter fuel pump a weber shouldn't ever need one! That was here:
http://www.racetep.com/webfuelspark.html

Well after years of battling fuel dripping into the throat of my carb I finally put in a nice Holley FPR and set it down to 4psi. Wouldn't you know it, the dripping stopped and nearly all the problems I had been battling since I put the weber in were solved.

08-24-2014, 08:25 PM	#1
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	Possible Weber float height problem...? I rebuilt and turbo prepped my 51 IDA Weber and attempted to start it. It did not feed any fuel. I am assuming at this point that it is my float setting. Here's my current tune on my street ported 12a: Will eventually go blow through turbo 37mm chokes 3.2 Glass ball needle valve 60f10 idle jet 120 idle holder 195 main 150 air corrector f-3 turbo e-tube My question is, can I set my float height without removing the Weber? The way I set the height before involved hanging it upside down. __________________ what I have:* 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

08-29-2014, 06:36 AM	#2
730RWHP12A Rotary Fanatic Join Date: Mar 2008 Location: chatsworth, california iTrader: (8) Posts: 349 Rep Power: 17	yes, you can set the float with the carb installed. there is a small hole in the top of the carb right above the float, use a small piece of safety wire or a paper clip to measure the height and adjust accordingly.. or they sell a IDA float measuring tool that's pretty trick https://www.google.com/search?q=webe...rs%3B720%3B568 __________________ rotaryshack.com

08-29-2014, 05:54 PM	#3
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	I got it somewhat figured out now. The car starts up just fine. And I ordered one of those float height sight things from JayCee yesterday. That will help get the float height dialed in. But the car is so damn rich, it idles for at least 30 seconds after I shut the pump off. Lol... Any tips in a better starting point? 12a street port turbo 51mm IDA Weber Black plastic float 37mm chokes 3.2 Glass ball needle valve 60f10 idle jet 120 idle holder 195 main 150 air corrector f-3 turbo e-tube __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

08-29-2014, 05:58 PM	#4
730RWHP12A Rotary Fanatic Join Date: Mar 2008 Location: chatsworth, california iTrader: (8) Posts: 349 Rep Power: 17	what motor is it on? my motor liked F11 E tubes.. N/A p-port __________________ rotaryshack.com

08-30-2014, 02:17 PM	#5
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	12a street port. As soon as it's running good NA, it's going blow-through turbo. I already prepped the Weber and made a plenum. But I want to make sure it's running clean NA before I tackle the blow-through tuning. __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

08-30-2014, 02:27 PM	#6
730RWHP12A Rotary Fanatic Join Date: Mar 2008 Location: chatsworth, california iTrader: (8) Posts: 349 Rep Power: 17	n/a streetport I would run f7 or f11 E tubes and bring your air jet up to 190.. that will be good for n/a __________________ rotaryshack.com

08-30-2014, 07:30 PM	#7
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	Have any blow-through recommendations? Your the guy to ask... __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

08-31-2014, 12:04 AM	#9
13x SinCityRotary Join Date: Feb 2010 Location: Sin City iTrader: (0) Posts: 207 Rep Power: 15	very interesting .. similarity to the direction I want to go but have yet to get dialed in as NA so everything on hold __________________ WHiV8 in the works!! May 2015 Email

10-02-2014, 04:42 PM	#10
tom93r1 Rotary Fan in Training Join Date: Feb 2008 iTrader: (0) Posts: 45 Rep Power: 0	Do you have fuel pressure regulator? I didn't have one on my DCO for years because I read that with the Carter fuel pump a weber shouldn't ever need one! That was here: http://www.racetep.com/webfuelspark.html Well after years of battling fuel dripping into the throat of my carb I finally put in a nice Holley FPR and set it down to 4psi. Wouldn't you know it, the dripping stopped and nearly all the problems I had been battling since I put the weber in were solved. __________________ 74 REPU big port 13b Weber 48 DCO 93 RX7 R1 76 Suzuki RE5