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Well, I guess I'm gonna rebuild the carb(update)

B

blue65coupe

Well-Known Member
Got the car out last night and had the same problem as before just not as bad. Instead of waiting 10 minutes on the side of the road, I could fire the car up after it died. It would stumble and hesitate still but nothing like before. Weird problem but is "better".

New fuel tank, pump and filter. Cleaned carb but not rebuilt. New wires, plugs, cap, button and coil. Removed e-fan. Instead of sputtering very badly now it just kinda dies. It will start right back with a rough idle and will come back to a smooth run for a little and then die again. Not as bad as it was but still not driveable. I'm making progress :toot
 
Re: Well, I guess I'm gonna rebuild the carb

What carb are you running? Im sure you mentioned it before, but my memory sucks.
 
Re: Well, I guess I'm gonna rebuild the carb

Sounds like vapor lock maybe......check the position of the fuel line being close to the engine block.
 
Re: Well, I guess I'm gonna rebuild the carb

I'm running a "standard route" line. From pump up the corner of the engine, between the dizzy and carb (steel line), then goes into rubber line to filter sitting over ps valve cover and into carb. There is plenty of clearance and nothing is touching. Not much other way of routing. If it's vapor locking, I'd have to find a completely different routing method. Considering it's not as bad, is there a definitive way to tell between vapor locking and carb starvation without process of elimination?
 
Re: Well, I guess I'm gonna rebuild the carb

I have taken a wet rag and cooled the fuel line to see if it made any difference. Even if it does not touch, it can still get pretty hot. Could you do a temporary line with rubber fuel line to see how that works? Route it away from everything.

When the car stops, remove the air cleaner, pump the accelerator linkage as you look into the carb. See if there is gas shot into the carb. If you have gas there, it should not be a delivery problem. Be careful and protect yourself from splashing fuel.
 
Re: Well, I guess I'm gonna rebuild the carb

Gotcha. I gotta mow grass today and have ordered the rebuild kit already so it looks like I may not have a chance to see. I'm gonna go ahead and pull carb and r&r tomorrow when the kit gets in. We'll see what happens. Thanks.
 
Re: Well, I guess I'm gonna rebuild the carb

Duane,

Don't let the whole "carburator rebuild" thing intimidate you. I rebuilt my first carb when I was 16.... an old 4V Rochester from a '65 GTO. Follow the directions within the kit and you'll be fine. Heck, if a dumb HS kid can rebuild an old 4V, you should have no problems...
 
Re: Well, I guess I'm gonna rebuild the carb

"daveSanborn" said:
Duane,
Heck, if a dumb HS kid can rebuild an old 4V, you should have no problems...
Click to expand...

I didn't think Duane was that young...
 
R & R'ed the carb. No dice. During one of the stalls I popped the air cleaner off and hit the throttle. No gas came out of the pump jets at the front of the carb. Hit it again and some came out. Don't know if that's indicative of vapor locking or not. I'm sure someone will chime in. If so I guess I'll re-route the fuel line. I've got an extra set of hands coming over Friday so I imagine I've said "screw it" till then. Filter is still hot enough to where you can only hold onto it for about 5 seconds. If it is locking, why now when nothing has really changed?
 
So you didn't find any trash in the carb?

How bout posting a pic that shows your fuel feed line to the carb? Pictures may help.
 
Rick, the proper spelling would be "you're" not "your". You're = you are Your is possessive :bird

Anyway, just got back from another unsuccessful run. Started missing AGAIN and when I got down the drive it was acting AGAIN like it was running on less than 8 cylinders. Temp went up to about 210 at this point. Almost like the timing is dumping. Don't have time to fool with it anymore today. I ain't touching it again 'till I have some "know how" here. Maybe some news come Friday.
 
"blue65coupe" said:
R & R'ed the carb. No dice. During one of the stalls I popped the air cleaner off and hit the throttle. No gas came out of the pump jets at the front of the carb. Hit it again and some came out. Don't know if that's indicative of vapor locking or not. I'm sure someone will chime in. If so I guess I'll re-route the fuel line. I've got an extra set of hands coming over Friday so I imagine I've said "screw it" till then. Filter is still hot enough to where you can only hold onto it for about 5 seconds. If it is locking, why now when nothing has really changed?
Click to expand...

"Chiming in......." If there was no gas at the carb on the first pump, it could very well be vapor locking.
 
"AzPete" said:
"Chiming in......." If there was no gas at the carb on the first pump, it could very well be vapor locking.
Click to expand...
I'd have to agree, hot + no gas, usually = vapor lock. It is the stock/original style mech. fuel pump? Aluminum intake? Spacer under carb? any pics of your arrangent?
 
He still hasn't figured out how to take and then post pictures.
 
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