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I have an 1981 and it’s been sitting for six years. I’ve started doing all the replacing stuff. I had the carb built professionally and installed it. It ran fine for about ten minutes then it started flooding. I checked all the lines going to it and after many times restarting it and flooding, my vapor canister got full of fuel. I took the vacuum line from the carb that went to the canister and fuel shot out of the carb where the line was connected. Any ideas on what is going on?
Its been awhile since I've worked on carbs ... but flooding the way you described sounds like the carb is not working right. What does the carb guy say about this ? Even if he doesn't think its the carb, I'd think he'd be able to walk you thru troubleshooting this. After all ... there's only so many places the excess gas can be coming from
The person who did it didn't do it right. The float height is way off or the tech installed the clip on the needle the wrong direction which can make the float hang up.......
The person who did it didn't do it right. The float height is way off or the tech installed the clip on the needle the wrong direction which can make the float hang up.......
Jebby
Jebbysan is RIGHT , carb needs to be sent back to your carb guy .
Steven
I thought it could be an issue so I plugged it off. Vapor canister is full of fuel so I unhooked the carb line to it and it’s still flooding
That doesn't sound right! The vapor canister has a line from the fuel tank that is installed at the top of the tank. The carb hose uses vacuum to draw those fuel vapors from the tank to the canister...if connected correctly and into the carb for combustion. To my knowledge, there are no ports dedicated to the transport of fuel. Maybe I'm missing something...but something isn't connected correctly!
That doesn't sound right! The vapor canister has a line from the fuel tank that is installed at the top of the tank. The carb hose uses vacuum to draw those fuel vapors from the tank to the canister...if connected correctly and into the carb for combustion. To my knowledge, there are no ports dedicated to the transport of fuel. Maybe I'm missing something...but something isn't connected correctly!
I took it back to the guy, he unstuck the float and put in a Teflon filter and after installing it ran but after warmup it’s flooding itself out…gonna check the vacuum diagrams and see what’s messed up
stock mechanical, it’s new with new lines to the carb
Hopefully not an issue, though. Is the return line from the fuel pump connected, and does it have a clear path back to the fuel tank? Is the hose over the frame rail pinched or bent?
Some carbs can be very sensitive to fuel pressure. If your carb guy doesn't want to see you a fourth time, he may want to put a fuel pressure gauge on your car to double check, but it sounds like something was assembled incorrectly, or there is a failed part that needs to be replaced.
Yeah, I agree, I'm no pro but I've ben around some, soaking is not just to make it look pretty, it's to loosen gunk up in small passages.... I use an ultra sonic cleaner-half Mr clean, half heated water. .take out any electric stuff and rubber you want to save and let it rip...Then I give it a blast of LPS-1 after rinsing and blowing out the fluid...It's pretty clean...Handy thing to have around, does a great job on some firearms, trigger assemblies etc...
C3 fuel issue
