lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Big Block Talk!
Big Block Talk! Everything about swapping a big block engine into your cart!



Post New Thread  Reply
Thread Tools Display Modes
Unread 02-23-2014, 04:08 PM   #11
Not Yet Wild
 
Join Date: Sep 2011
Posts: 29
Default Re: intermittent dead cylinder issue- vanguard 23hp

oh ok, 2 bbl carb from the factory

all four valves are right at .004"

i have had this motor for about 2 years but just in the past couple of months i have actually had the chance to start cranking it and test the engine setup

jason
wuntunearlybko is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 02-23-2014, 04:18 PM   #12
Gone Wild
 
Join Date: Oct 2010
Posts: 6,730
Default Re: intermittent dead cylinder issue- vanguard 23hp

How much throttle do you have to give it for that cylinder to fire and warm up? If it runs good with just a tiny bit of throttle, it sounds like the pilot jet hole, in front of the throttle butterfly, for that cylinder is plugged. Can you post a pic of the top of the carb?
1989Marathon is offline   Reply With Quote
Unread 02-23-2014, 04:30 PM   #13
Not Yet Wild
 
Join Date: Sep 2011
Posts: 29
Default Re: intermittent dead cylinder issue- vanguard 23hp

its intermittent all the way through the throttle, i can put my hand in fronf of the exhaust and can feel it cool off and get warm again. i'm not sure it ever does get warm.

i dont have a quick way to get a pic of my motor but here is one that looks identical to mine.

http://www.weekendfreedommachines.co...335/186399.jpg

jason
wuntunearlybko is offline   Reply With Quote
Unread 02-23-2014, 04:36 PM   #14
Gone Wild
 
Join Date: Oct 2010
Posts: 6,730
Default Re: intermittent dead cylinder issue- vanguard 23hp

Can you get the model number off the tag on the fan shroud? I can look it up.
It should be something like 38xxxx-xxxx-xx
Also, if you remove the plug wire from the spark plug on the bad side, and install another plug in the wire to check for spark, does the plug have consistant spark throughout the entire throttle range.
1989Marathon is offline   Reply With Quote
Unread 02-23-2014, 04:51 PM   #15
Not Yet Wild
 
Join Date: Sep 2011
Posts: 29
Default Re: intermittent dead cylinder issue- vanguard 23hp

386447-0079-G1

i gotta run for now, but i will check the spark as soon as i can. realistically tomorrow once i get off work but if i can get back in the shop tonight i will try that

thanks for all your help!

jason
wuntunearlybko is offline   Reply With Quote
Unread 02-23-2014, 05:03 PM   #16
Gone Wild
 
Join Date: Oct 2010
Posts: 6,730
Default Re: intermittent dead cylinder issue- vanguard 23hp

If the spark is consistant, it is likely a fuel delivery issue to that side of the motor. The main jets are removeable on that carb. Make sure you can spray into the hole in the jet, and see fuel coming out of another hole in the carb venturi, You can do the same with the pilot circuits.
1989Marathon is offline   Reply With Quote
Unread 02-24-2014, 07:24 PM   #17
Not Yet Wild
 
Join Date: Sep 2011
Posts: 29
Default Re: intermittent dead cylinder issue- vanguard 23hp

ok i swung through autozone and picked up a spark tester (el cheapo but it seems to work) and just test both sides, they both seem to be firing consistently. i watched for a good 5-7 minutes per side and never noticed a missed spark. it HAS to be the carb. i am gonna pull it off again and go through it with a fine tooth comb (literally).

thanks for all the help!

jason
wuntunearlybko is offline   Reply With Quote
Unread 02-24-2014, 07:28 PM   #18
Gone Wild
 
Join Date: Oct 2010
Posts: 6,730
Default Re: intermittent dead cylinder issue- vanguard 23hp

Good deal. Get a can of carb cleaner and use the small plastic hose that comes with it. Spray into the main jet on each side, and see where it comes out at. It should be the same for both sides. Do the same with the low-side(pilot) circuits.
1989Marathon is offline   Reply With Quote
Unread 02-24-2014, 07:52 PM   #19
Not Yet Wild
 
Join Date: Sep 2011
Posts: 29
Default Re: intermittent dead cylinder issue- vanguard 23hp

just did... carb cleaner through all ports and i went one more step and used torch tip cleaner to hit the ports i could without damage.

i'm either blind dumb or both, i dont see an air/fuel mix screw anywhere on this carb! what am i missing? every carb i have ever worked on has at least two mix screws

jason
wuntunearlybko is offline   Reply With Quote
Unread 02-24-2014, 08:24 PM   #20
Gone Wild
 
Join Date: Oct 2010
Posts: 6,730
Default Re: intermittent dead cylinder issue- vanguard 23hp

The screw should be under these plugs. Since you don't have access to them, they shouldn't need to be adjusted. I would look somewhere else.
BTW, my 2-barrel carb has no adjustment except for the needle I installed.

1989Marathon is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Big Block Talk!


Thread Tools
Display Modes


Similar Threads
Thread Forum
18hp vs 23hp Vanguard from CPP Big Block Talk!
23hp Vanguard won't start Big Block Talk!
Questions about 23hp Vanguard Big Block Talk!
23hp Vanguard Install ???? Big Block Talk!
Oil over full on my Vanguard 23hp Big Block Talk!


All times are GMT -5. The time now is 02:49 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.