AMC86Kid Posted April 18, 2020 Share Posted April 18, 2020 Ok so I finally hooked up the electric choke hoping I would see it move once it was connected to the battery but nothing happened, I then proceeded to play around with the screw pin that’s behind it and that seemed to have helped a lot I loosened the screw and the rpms dropped to around 800 (I’m going off of sound since my tachometer doesn’t work) Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 18, 2020 Author Share Posted April 18, 2020 Basically what I learned was the choke has a metal coil in it and the power allows the metal coil to heat up and loosen the flaps so that they can move with less resistance So by turning the screw out I got the rpms lower which is great because it will make it easier to see the timing with the light but I’m still not sure about how to make sure that it’s set correctly ? Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 18, 2020 Author Share Posted April 18, 2020 DCFF9FA9-5F9B-4CAB-A0D4-9ABF3EEFF211.MOV Link to comment Share on other sites More sharing options...
Eagle Posted April 19, 2020 Share Posted April 19, 2020 Timing should be set with the engine at warm idle speed -- which for that engine I think is around 700 RPM. If you set the timing when it's "idling" at 2000 RPM, the timing will probably be way out of spec.. Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 19, 2020 Author Share Posted April 19, 2020 yes Eagle i agree thats why i was playing around with the carb to see if i could get it to idle lower ok so now i looked up as much info as i could about the carb and here is what i know so far this is the vacuum control for the distributer this is the fuel bowl vent (i connected it to the charcoal canister) this is the rear idle mixer screw there one in the front too this I'm not to sure what its for ??? this is where the gas comes in at Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 19, 2020 Author Share Posted April 19, 2020 is the vacuum port on the passenger side of the carb for the PCV ? Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 20, 2020 Author Share Posted April 20, 2020 does anyone use a Pressure Regulator with there carb ? Link to comment Share on other sites More sharing options...
Green Mesa XJ Posted April 22, 2020 Share Posted April 22, 2020 does anyone use a Pressure Regulator with there carb ? I do have a pressure regulator set up, plenty don’t bother. If your electric pump is in spec it’s not a big deal. I ran for years without a regulator only added one when I changed out the old Weber for a new one because of erratic idle (probably a clogged jet). Could have rebuilt it instead but didn’t have the time. When I swapped it out I added the regulator to be sure the fuel pressure was right on the money. Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 22, 2020 Author Share Posted April 22, 2020 Right on I feel like mine runs a little rich Link to comment Share on other sites More sharing options...
Eagle Posted April 22, 2020 Share Posted April 22, 2020 3 hours ago, AMC86Kid said: Right on I feel like mine runs a little rich Do you know how to read spark plugs? https://www.wikihow.com/Read-a-Spark-Plug https://www.onallcylinders.com/2012/12/20/reading-101-how-to-read-your-spark-plugs/ https://www.dragstuff.com/techarticles/reading-spark-plugs.html https://www.hotrod.com/articles/mopp-0612-reading-spark-plugs/ Link to comment Share on other sites More sharing options...
watchamakalit Posted April 22, 2020 Share Posted April 22, 2020 I want to start off by saying I am for sure not a carberator guru. I have spent my shjare of hours leaned over a fender scratching my head just like you are. It sounds to me like you need a vacuum guage, a tachometer and a fuel pressure guage, and a manual or at bare minimum a parts breakdown for that carb. before you will get much farther with success. It also sounds like you would benifit from some reasearch on how to properly set a carb. I am not trying to tell you how, I just know that continually moving screws when you don't fully understand what they do will not help. To the best of my ability and guesswork: The screw behind the choke is an idle adjustment. It will help you to adjust the idle. To get the idle adjusted properly you first need to adjust the air fuel mixture. Its been a long time but this is best done with a vacuum guage IIRC. The 2 mixture screws are probably Low speed mixture and High speed mixture. I can't tell you which one is which, but a manual will. The other port is probably a full time vacuum for a break booster or somthing similar. I hope all this helps. And I am sure someone on here with more carb experience than me can help some more. Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 22, 2020 Author Share Posted April 22, 2020 Yeah I checked my spark plugs but I’m not sure what the proper gaping should be my plugs are dry but all look like they have been powered coated black and yes I do need to get a tach and figure out how to hook it up Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted April 22, 2020 Share Posted April 22, 2020 4 hours ago, AMC86Kid said: powered coated black Rich Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 22, 2020 Author Share Posted April 22, 2020 Oh the temperature matters too on the plugs , I did not know that I’m running around 170 right now Link to comment Share on other sites More sharing options...
Eagle Posted April 23, 2020 Share Posted April 23, 2020 14 hours ago, AMC86Kid said: Oh the temperature matters too on the plugs , I did not know that I’m running around 170 right now Coolant temperature doesn't make much difference to the spark plugs. What's important is running plugs that ere the correct heat range for the engine. Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 23, 2020 Author Share Posted April 23, 2020 whats the proper amount a gaping for the plugs ? Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted April 23, 2020 Share Posted April 23, 2020 Going purely off memory its 0.035? Don't worry about gap right now. If you are trying to read the plugs for rich versus lean the color is all that matters. Look at the porcelain part right below the electrode. I was always told this should be a "camel tan" color and as uniform as possible. Anything else will tell you how to change your carb adjustments. Link to comment Share on other sites More sharing options...
MJCARENA Posted April 23, 2020 Share Posted April 23, 2020 Just wondering, does your choke open up all the way? Link to comment Share on other sites More sharing options...
AMC86Kid Posted April 24, 2020 Author Share Posted April 24, 2020 Yes I believe it does open after it’s warm Link to comment Share on other sites More sharing options...
marcial88 Posted March 10, 2022 Share Posted March 10, 2022 (edited) Does anybody have pictures for reference on how to install this weber card. What's is and isn't used from the comanches 2.8 engine. Too many hoses. Edited May 6, 2023 by marcial88 Typo Link to comment Share on other sites More sharing options...
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