The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-28-2012, 05:47 PM   #1
murdoc3
Registered User
 
Join Date: Dec 2011
Location: Oakland, Ca
Posts: 18
Newbie help. Do I ned to replace my carb?

As I was driving back from the hardware store yesterday I heard a loud clank come from the engine. Fortunately I was pretty close to home. The truck seemed to be driving fine, and when I got home I popped the hood and took this video.

http://tinypic.com/r/xnrymg/6
(Note: the audio is not coming from the truck)

Any thoughts?
murdoc3 is offline   Reply With Quote
Old 05-28-2012, 08:37 PM   #2
bonacker
Registered User
 
Join Date: Feb 2012
Location: Jacksonville, Florida
Posts: 24
Re: Newbie help. Do I ned to replace my carb?

Usually, gas dripping out like that is from the float in the carb bowl being "gas logged" and therefore not shutting off the gas when the bowl is full. Second choice would be something (dirt) stuck in the needle valve and not letting it close properly. Carb float is connected to the needle valve. Might need to rebuild the carb but not need a new one. What type of carb? The video looks like the linkage/choke look like clean and fairly new. Above all, don't drive it until you fix it---fire hazard!!!! (obviously). Good luck.
bonacker is offline   Reply With Quote
Old 05-28-2012, 08:48 PM   #3
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,865
Re: Newbie help. Do I ned to replace my carb?

I had a shop dyno my 350 and had a new Edel 1405 carb. Had problems with my needle hanging up in its bore and would oveflow out the top and onto the manifold. He polished the needle with like some very fine sandpaper and no trouble after that.

Heres a question: Do you know where the leak is exactly?
rideblue00 is offline   Reply With Quote
Old 05-28-2012, 09:04 PM   #4
murdoc3
Registered User
 
Join Date: Dec 2011
Location: Oakland, Ca
Posts: 18
Re: Newbie help. Do I ned to replace my carb?

Quote:
Originally Posted by bonacker View Post
Usually, gas dripping out like that is from the float in the carb bowl being "gas logged" and therefore not shutting off the gas when the bowl is full. Second choice would be something (dirt) stuck in the needle valve and not letting it close properly. Carb float is connected to the needle valve. Might need to rebuild the carb but not need a new one. What type of carb? The video looks like the linkage/choke look like clean and fairly new. Above all, don't drive it until you fix it---fire hazard!!!! (obviously). Good luck.
Thanks bonacker. It's an edelbrock 1406. It looks like a rebuild kit is only around $30. Is it simply taking the carb apart cleaning it up and replacing the parts that are included in the kit?
murdoc3 is offline   Reply With Quote
Old 05-28-2012, 09:05 PM   #5
murdoc3
Registered User
 
Join Date: Dec 2011
Location: Oakland, Ca
Posts: 18
Re: Newbie help. Do I ned to replace my carb?

Quote:
Originally Posted by rideblue00 View Post
I had a shop dyno my 350 and had a new Edel 1405 carb. Had problems with my needle hanging up in its bore and would oveflow out the top and onto the manifold. He polished the needle with like some very fine sandpaper and no trouble after that.

Heres a question: Do you know where the leak is exactly?
Nope. Only what you can see in the video.
murdoc3 is offline   Reply With Quote
Old 05-28-2012, 09:45 PM   #6
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,865
Re: Newbie help. Do I ned to replace my carb?

Well before you take the carb completely apart, you have to know where the leak is. Take the air cleaner off and run it again to see.
rideblue00 is offline   Reply With Quote
Old 05-28-2012, 10:50 PM   #7
murdoc3
Registered User
 
Join Date: Dec 2011
Location: Oakland, Ca
Posts: 18
Re: Newbie help. Do I ned to replace my carb?

Quote:
Originally Posted by rideblue00 View Post
Well before you take the carb completely apart, you have to know where the leak is. Take the air cleaner off and run it again to see.
will do.
murdoc3 is offline   Reply With Quote
Old 05-28-2012, 10:55 PM   #8
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,865
Re: Newbie help. Do I ned to replace my carb?

Becareful tho of the fire danger of course.
rideblue00 is offline   Reply With Quote
Old 05-28-2012, 11:20 PM   #9
MOTOIMPAIRED
Registered User
 
MOTOIMPAIRED's Avatar
 
Join Date: Jan 2011
Location: Orlando Florida
Posts: 315
Re: Newbie help. Do I ned to replace my carb?

Just be very careful when you put the top back on that style carb you dont have the metering rods installed or you are guarenteed to bend them. Put the rods ib last after the top is on..
MOTOIMPAIRED is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:25 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com