Carb Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jeffnohio · 10-08-2007, 10:48 PM

OK so I was putting new intake exhaust gaskets on the 1967 in-line 6 and thought, hmm.. Maybe if I tighten the bolts on that old single barrel carb it might help the small leaks it had on it.. OK so I hit em all with a screw driver .. and also the one on the very top toward the back.. it was very loose.. OK I kept turning and turning it and it would not get tight.. That is when I said uh oh .. I bet that is a float screw or idle circut screw.. Well I put her all back together hoping that it was nothing and that I got it close to where it was but no such luck .. the thing wont run but about 5 minutes then dies.. and I can't find any info on this carb on the net on how to set them up or anything.. It was running fine before I messed with it.. as usual lol

If anyone knows how to set this screw or what it is and could let me know I would surely appreciate it ..

Jeff

jeffnohio · 10-09-2007, 07:28 AM

bump for the morning guys

I will post up a pic in a bit of the screw........ tried to find the inline 6 pics thread to post up a pic but couldn't find it again

bayer20 · 10-09-2007, 07:55 AM

Can you buy a rebuild kit for this carb?

68gmsee · 10-09-2007, 08:39 AM

What type of carburetor is it? Rochesters were the most common, but I've hear of other makes being used.

Can't figure out which screw you're talking about, though.

jeffnohio · 10-16-2007, 04:06 PM

Here is the carb and the screw I put a arrow too..

I am still not sure what kind of carb it is though ..

68gmsee · 10-17-2007, 01:51 PM

It's a rochester carb. That's just a springloaded vent cap for the bowl. Shouldn't attach to anything on the bowl. The rebuilt carb that I bought didn't have one.

Here's the top and bottom pics...

68gmsee · 10-17-2007, 01:55 PM

Just took another look at you pic and noticed that it is different than mine. Maybe there is something it attaches to. Take it apart and check...

10-08-2007, 10:48 PM	#1
jeffnohio Registered User Join Date: Oct 2007 Location: NW Ohio Posts: 58	Carb Help OK so I was putting new intake exhaust gaskets on the 1967 in-line 6 and thought, hmm.. Maybe if I tighten the bolts on that old single barrel carb it might help the small leaks it had on it.. OK so I hit em all with a screw driver .. and also the one on the very top toward the back.. it was very loose.. OK I kept turning and turning it and it would not get tight.. That is when I said uh oh .. I bet that is a float screw or idle circut screw.. Well I put her all back together hoping that it was nothing and that I got it close to where it was but no such luck .. the thing wont run but about 5 minutes then dies.. and I can't find any info on this carb on the net on how to set them up or anything.. It was running fine before I messed with it.. as usual lol If anyone knows how to set this screw or what it is and could let me know I would surely appreciate it .. Jeff __________________ Jeff 1967 GMC 3/4ton LWB, Orginal Straight 6, 4 on the floor Project truck

10-09-2007, 07:28 AM	#2
jeffnohio Registered User Join Date: Oct 2007 Location: NW Ohio Posts: 58	Re: Carb Help bump for the morning guys I will post up a pic in a bit of the screw........ tried to find the inline 6 pics thread to post up a pic but couldn't find it again __________________ Jeff 1967 GMC 3/4ton LWB, Orginal Straight 6, 4 on the floor Project truck Last edited by jeffnohio; 10-09-2007 at 07:43 AM.

10-09-2007, 07:55 AM	#3
bayer20 Registered User Join Date: Apr 2007 Location: Fayetteville, NC Posts: 83	Re: Carb Help Can you buy a rebuild kit for this carb? __________________ There is no replacement for displacement!

10-09-2007, 08:39 AM	#4
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Carb Help What type of carburetor is it? Rochesters were the most common, but I've hear of other makes being used. Can't figure out which screw you're talking about, though.

10-16-2007, 04:06 PM	#5
jeffnohio Registered User Join Date: Oct 2007 Location: NW Ohio Posts: 58	Re: Carb Help Here is the carb and the screw I put a arrow too.. I am still not sure what kind of carb it is though .. __________________ Jeff 1967 GMC 3/4ton LWB, Orginal Straight 6, 4 on the floor Project truck

10-17-2007, 01:51 PM	#6
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Carb Help It's a rochester carb. That's just a springloaded vent cap for the bowl. Shouldn't attach to anything on the bowl. The rebuilt carb that I bought didn't have one. Here's the top and bottom pics... Attached Images Last edited by 68gmsee; 10-17-2007 at 01:53 PM.

10-17-2007, 01:55 PM	#7
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Carb Help Just took another look at you pic and noticed that it is different than mine. Maybe there is something it attaches to. Take it apart and check...



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