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| | | | Joined: Mar 2017 Posts: 326 'Bolter | | 'Bolter Joined: Mar 2017 Posts: 326 | I just replaced my Rochester for a Carter, and todays short test drive went well, but I have a couple of questions. One; on the base of the Rochester there is one hole that has to line up with the opening in the proper gasket, but in the Carter there are two. If I use the gasket that came with the Carter, one hole is exposed; if I use the gasket from the Rochester (which is still good), the other hole is exposed. So which gasket should I use? For todays run, I went ahead and used the gasket for the Rochester and had no problems.
The other question is about the choke/throttle hold down clamps; the Carter did not come with the clamp (the one that screws down with one of the top bolts on the back of the carb), so I did a little bit of modification and was able to hook up the choke with the clamp from my Rochester (the cable clamp off the Rochester is dual duty, it clamps both the choke and the throttle cables). The problem is that due to the hold down screw on the Carter being closer to the air inlet, it is no longer lined up at all with the point where the throttle wire runs through the hole where the foot feeder throttle attaches to the arm on the carb ( when you step on the gas peddle, it cannot slide up the throttle wire due to the angle). My question here is does anyone know how the throttle cable attaches to the Carter carburetor? I have not taken any pictures yet, but I should have time tomorrow to take some and post.
To be clear, I have a 1956 235 with the original Rochester now changed to a Carter 2100S.
Thank you,
Lee
1956 Chevy 3200, 235 w/3 speed
| | | | | Joined: Feb 2004 Posts: 29,742 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,742 | Use an X-acto knife or a paper punch to modify the new gasket to expose both holes- - - -problem solved. If you're tinkering with the cable bracket, just make whatever modifications you need to make sure all the cables line up properly- - - -it's most likely possible to fabricate an add-on piece to avoid making permanent modifications to anything in case you decide to swap back. Not likely, as most people who make the Rochester to Carter swap can't believe how much better the engine runs with a Carter carb.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Lee - use the mounting gasket we sent with the carb; it is what Carter recommended.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: Mar 2017 Posts: 326 'Bolter | | 'Bolter Joined: Mar 2017 Posts: 326 | Thanks Jon, I was going to call you on Monday and get your input. I’ll swap it out tomorrow.
Lee.
1956 Chevy 3200, 235 w/3 speed
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