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#1 |
Registered User
Join Date: Mar 2014
Location: Houston, TX
Posts: 44
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66 Carb Questions
Ok, so I've rebuilt a motorcycle carburetor before, but I just got my very first project truck (whoop!) and realized that I don't know all that I thought I knew.
I just got a 66 C10 with the "aftermarket" Target Master 292. I've done some research and it looks like it has the Rochester B 1bbl carburetor on it. What in the world is this hard line for? I can't find any information anywhere about what it is, is not, could be, or shouldn't be. It's the bottom one in the attached picture. The hard line has a hose attached at the end with a machine screw inserted in the hose. This seems really, really stupid and not OEM. Thoughts, anyone? |
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#2 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,217
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Re: 66 Carb Questions
The 5/16 line at the top is the fuel inlet tube. The small one at the base is for dist vacuum advance. It should have a hose connecting it to the vacuum chamber on the dist.
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#3 | |
Registered User
Join Date: Mar 2014
Location: Houston, TX
Posts: 44
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Re: 66 Carb Questions
Quote:
Thanks for the help! |
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#4 |
Post Whore
![]() Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
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Re: 66 Carb Questions
There's a vacuum advance booster on the distributor, its on the front side on the bottom of it. You should hook that back up...you'll notice a major difference in performance when you hook it back up. Here's a picture of where it hooks up. You can see it barely in the picture...but its the little chrome booster on the bottom of the distributor.
__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw |
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#5 |
Registered User
Join Date: Jul 2013
Location: Bradenton Fl.
Posts: 52
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Re: 66 Carb Questions
How do you know its a Rochester carb ? I have one that looks like your and need a rebuild kit for it. Thanks Doc
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#6 |
Registered User
Join Date: Mar 2014
Location: Houston, TX
Posts: 44
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Re: 66 Carb Questions
Just based on product manuals and all the rebuild kits/replacement parts out there I know it's a Rochester carb. Also, the number on the side of the carb base matches Rochester numbers.
Checked last night and the distributor doesn't even have a vac advance... No wonder the tube is plugged. |
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#7 |
Registered User
Join Date: Oct 2012
Location: Crosby, Tx
Posts: 300
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Re: 66 Carb Questions
Mine is 65 and they are correct.. That line is for vacuum advance on the dist.
If you like I could post up a couple pics. Mines still got it. Oh and we are only a few miles apart ![]()
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1965 C10 Project |
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#8 |
Registered User
Join Date: Mar 2014
Location: Houston, TX
Posts: 44
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Re: 66 Carb Questions
Thanks for all the info y'all. I never would have guessed about vac advance. To be honest, this is my first multi-cylinder engine to ever really work on haha.
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#9 |
Post Whore
![]() Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
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Re: 66 Carb Questions
No biggie. lol I will say that once you get it hooked up you'll notice a huge difference in performance.
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__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw |
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#10 |
Registered User
Join Date: Feb 2009
Location: southeasternfoothillsofusa
Posts: 1,557
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Sounds like you face 1 of 2 situations. Either (1)someone has removed/rigged/modified-for-performance(?) the vac. adv. from your oem dist. & plugged the vac. adv. tube; OR, (2)possibly a p/o has installed an after-market dist. which was designed w/out a vac. advance at all--kinda like a newer-engineered dist. with full mechanical/centrifugal adv. [and possibly also be electronic to replace the original, points-type dist]. You may just be the owner of a rare, performance dist. for a "292": may luck be on your side.
Oh, welcome to the forum. Hope it means as much to you as it has to me. There's a bunch of gracious and knowledgeable guys here--a bunch of future friends awaiting chances to meet and help you...and hopefully learn from your background, too!!! sam |
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