Weber Carb....Won't idle at all anymore! Do I need a fuel regulator???? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Weber Carb....Won't idle at all anymore! Do I need a fuel regulator????

Introducing MONSTALINERô UV Permanent DIY Roll On Bed LineJeep speedometer gears at rockridge4wdTeraFlex Now at Rockridge 4WD! BEST DEALS around!

Reply
Unread 06-14-2003, 11:27 PM   #1
saint152
Registered User
 
Join Date: May 2003
Posts: 156
Weber Carb....Won't idle at all anymore! Do I need a fuel regulator????[FIXED!!!]

I have searched for some answers to my problem on this forum finding a few maybe's......but here's what happened to me today:

I did the weber install a few months ago and was thrilled with the outcome!.....My jeep ran GREAT!!....but today I the smell of fuel was pretty strong so I looked under the hood with the engine running. I noticed that fuel was leaking past one of the lines on the back of the fuel filter..... so I replaced the old spring type clamp with a stainless screw clamp.....that stopped the fuel leak but immediately afterwards....I started my jeep and it would not hold the idle!.... It would just die.... I drove it around the block and it seemed as smooth as before..... but it stalled at every stop....

Here's what I'm thinking..... since I tightened the fuel line I got more pressure building up...... Do I need a fuel regulator?....

I've got no vaccum leaks!

1990 YJ 4.2 liter
coil and ditributer cap upgrade

Can someone PLEASE help???

Thanks in advance!


Last edited by saint152; 06-15-2003 at 02:32 PM..
saint152 is offline   Reply With Quote Quick reply to this message
Unread 06-15-2003, 11:33 AM   #2
pmpislander
Registered User
 
Join Date: Oct 2002
Posts: 107
I am having a similar problem. The jeep ran good for the first two weeks, then after that at an idle it seems to want to die. If you find out what the outcome is then let me know.
__________________
89 islander
il6 258
accel coil
flomaster exhuast
jvc and pioneer stereo and components
alarm
4" suspension lift
soa
35 in. super swamper tsl tires
steel horse hard top
9,000 pnd warn winch
custom made front bumber w/grill gaurd
webber carb
pmpislander is offline   Reply With Quote Quick reply to this message
Unread 06-15-2003, 02:27 PM   #3
saint152
Registered User
 
Join Date: May 2003
Posts: 156
FIXED IT!!!

OK....here's what I did.....

changed the fuel filter........(didn't help)

I added a "Mr Gasket" adjustable (1-6 psi) fuel pressure regulator ($30)..... set the regulator to 4 psi
(solved the problem with fuel leak in the return line)

I finally noticed that I had a whistling sound when I revved up the motor.....so I took the carb off of the plates and found out the the lower plate (lays right on top of the manifold) was loose....the bolts had come untorqued.

I tightened it down and put it back together(about 30minutes)

after adjusting the mixture and idle screw.....It runs smoother than ever!!!!! I can barely tell that it is running when it's idling!

I hope this helps others!!
saint152 is offline   Reply With Quote Quick reply to this message
Unread 06-16-2003, 11:20 PM   #4
pmpislander
Registered User
 
Join Date: Oct 2002
Posts: 107
I put the fuel regulator on there and put it at 4 psi, then checked the bolts on the carb like you did and they were loose also. So i tightened them up and it works a heck of a lot better then it did. I still have to adjust the mixture and idle screw, but i still noticed a big difference. Thanks for the help!
__________________
89 islander
il6 258
accel coil
flomaster exhuast
jvc and pioneer stereo and components
alarm
4" suspension lift
soa
35 in. super swamper tsl tires
steel horse hard top
9,000 pnd warn winch
custom made front bumber w/grill gaurd
webber carb
pmpislander is offline   Reply With Quote Quick reply to this message
Unread 06-16-2003, 11:37 PM   #5
saint152
Registered User
 
Join Date: May 2003
Posts: 156
No problem pmpislander

I'm glad somone got someuse out of my info!

UPDATE:

I took her out for a little wheelin' today and noticed that with some hard accelleration uphill....the motor was bogging as if it were not getting enough gas.... I changed the regulator to 5 psi....it helped a little but did the same thing......

I ended up removing the regulator and the bogging dissapeared...and ran flawlessly!!

i will be performing the "Nutter Bypass" tomorrow....hopefully everything goes well......

Now only if I can figure out how to get my SYE installed!....lol

I think I might just take it to the shop and let them do it for $200 and $250 for a CV driveshaft!
saint152 is offline   Reply With Quote Quick reply to this message
Unread 06-16-2003, 11:57 PM   #6
smok3y
Registered User
 
Join Date: Jun 2003
Posts: 398
ok guys ive got KINDA the same problem, my idle sux and it stalls if i dont rev it, BUT this isnt the only thing, if im drivin, it shifts fine blah blah, but say im in a gear(1-5) and i push the clutch in and pull it into neutral, let off the clutch, boom 0 RPMs and it stalls, i was told it was the idler jet in my carb was either clogged or somthin, i have 1990 islander, same exact engine as u do pmpislander im goin nuts guys i havent had it for more than 1 week and im forkin out $$ like no other ina day or so to get this stuff fixed
thanks
__________________
1990 YJ/ 31x10.50 Maxxis Mudders/Removed Sway bar,Rear trac bar/tow hooks. 2" straight pipes from manifold back

[COLOR=white]White Jeep Club #73,999,999[/COLOR]
smok3y is offline   Reply With Quote Quick reply to this message
Unread 06-17-2003, 01:06 AM   #7
LoOpY
Registered User
 
Join Date: Apr 2002
Location: Green Bay, WI
Posts: 888
If i may ask, where exactly did you get this regulator? and how does it attach?

I ask because I am interested in putting a bored out 4.0 throttle body on my 2.5, but obviously with more air i need more fuel, so im toying with ideas to bump my fuel pressure up a few PSI

thanks
-TiM
LoOpY is offline   Reply With Quote Quick reply to this message
Unread 06-17-2003, 07:42 AM   #8
yeep
Registered User
 
Join Date: Dec 2002
Location: coolidge, georgia
Posts: 165
the regulator limits fuel pressure. webers like 5 psi, american mechanical fuel pumps deliver 10-12 psi. if you want more fuel pressure, you need a fuel pump.
__________________
Blue Jeep Club Member #4.2
Follow Me To Certain Death Jeep Club Member #34


90 YJ V-8, big *** tires, cut, streached, locked.
yeep is offline   Reply With Quote Quick reply to this message
Unread 06-17-2003, 01:57 PM   #9
LoOpY
Registered User
 
Join Date: Apr 2002
Location: Green Bay, WI
Posts: 888
not to completling derail this train of conversation, but no I dont need a fuel pump. the jeeps fuel pump is capable of delivering 80PSI quite easily (though slightly overworked) by simply crimping off the rubber return line above the tank. (dont ask, long story) so essentially im looking for a way to cause a controlled restriction on the return side allowing me to bump my fuel pressure up from 40 to about 50 if needed. so i was just curious if it could be installed inline somehow
LoOpY is offline   Reply With Quote Quick reply to this message
Unread 06-18-2003, 03:28 PM   #10
pmpislander
Registered User
 
Join Date: Oct 2002
Posts: 107
started to have the same problems with the fuel regulator, but i have not taken it off yet. If i go over like 40mph then it starts to kick and buck like it is running out of gas. So i am going to take it off tonight and then take if out for a run and see how it does. Mine is still not running perfect but what can i say its an 89 with 195,xxx miles on it.
__________________
89 islander
il6 258
accel coil
flomaster exhuast
jvc and pioneer stereo and components
alarm
4" suspension lift
soa
35 in. super swamper tsl tires
steel horse hard top
9,000 pnd warn winch
custom made front bumber w/grill gaurd
webber carb
pmpislander is offline   Reply With Quote Quick reply to this message
Unread 08-11-2012, 08:20 AM   #11
Brucifer42
Registered User
1986  
 
Join Date: Aug 2012
Location: Austin, tx
Posts: 1
Same problem ish same solution

Put in a new weber 32/36 carb in my 86 suzuki sammi never did any adjustments to the carb becuase it ran me down the road just fine. now realizing ive been running rich the whole time, and when i started to hear a hissin noice form the carb area, sammi would eventually cease idleing and stall out everytime i left my foot off the gas. sop after reading, i tyried to adjust the idle mixture and idle speed screws. sammi would run with gas buit still wouldnt idle. took the carb out found the loose screews holding the adapter gasket was making the noise, tightened them, hooked the carb back on (30minutes), then sammi would idle! adjusted the mixture screw 1 3/4 way out and adjusted the idle speed screw 1 1/2 turn in once making contact. Sammi is soo quiet i still think she has stalled at lights, but shes just soo quit now. runs beter than ever, THANK YOU FOR POSTING U SAVED MY WEEKEND AND MY WALLET!!!
Brucifer42 is offline   Reply With Quote Quick reply to this message
Unread 08-12-2012, 04:32 AM   #12
Gohot
Registered User
 
Join Date: Jul 2012
Location: Morven, NC.
Posts: 44
Ok this is sort of from left field, but some years past, VW people were running 45 & 48 IDA's and stuff on Hotrod Bugs and Sand Rails. A good VW shop or tuning Guru might share some info with you or tune yours...?
Gohot is offline   Reply With Quote Quick reply to this message
Unread 08-12-2012, 06:39 AM   #13
90DesertTanYJ
Registered User
1990 YJ Wrangler 
 
Join Date: Jun 2012
Location: Jacksonville, FL
Posts: 750
And once you cant stand it anymore, the Weber adapter plate will fit 2 bbl Holleys! Well the ones that are 1-7/8"X3-5/8" anyway. Holley was used on just about everything at one time or another. I saw a write up on a 2v from a 73 Coronet 400 ci. The guy rebuilt/down jetted it some but was extremely happy with his $25 JY find. I like a Holley cuz they are easy to work on and one will find its way to the top of my manifold as soon as some other pressing issues are solved. Who knows I may figgur out that dam DFEV yet.
90DesertTanYJ is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.