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06-02-2002, 01:58 PM
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#1 |
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Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Rochester 2G Leaking
My Rochester 2G, manual choke, is leaking around the throttle butterfly shaft. It stops and dries up when the engine is running due to vacuum in the throat but when the engine is off it begins to leak from both sides and will actually pool some gas on the intake manifold. I guess it is probably just worn out but anyone ever have this problem...there was nothing in the rebuild kit to address this...or did I just miss it. Are there o-ring seals on this shaft?
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) |
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06-02-2002, 02:00 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Time for a new one.
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06-02-2002, 04:02 PM
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#3 |
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Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Now I wish I had not rebuilt it...LOL!
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) |
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06-02-2002, 04:38 PM
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#4 |
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Account Suspended
Join Date: May 2002
Location: Olathe, Kansas
Posts: 929
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If you can locate a used one, simply swap the base plate.. assuming the used one is better than yours lol. There was a kit sold for reboring the throttle shafts and inserting a bushing (I still have the kit) but they no longer supply the bushings
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06-03-2002, 12:40 PM
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#5 |
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Senior Member
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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Don't give up!!!
I assume you're talking about the base plate main throttles right? You unscrewed the brass screws, pulled out the round throttle plates, and pulled the rod out, and it was loose?
Luckily mine were still tight, but if they were loose (and this is a general rule of thumb for the air horn throttle plate and the accelerator pump arm) I would have taken the piece to Carburetors Unlimited in Kent (east valley highway just south of 43rd St. and 180th on the west side of the street) and have brass bushings pressed in to make them tighter. Chances are if you go out looking for an old replacement you'll find the same thing. I got lucky. Mine was still in good shape. I mention this because you do live in Kent, and Carburetors Unlimited bailed me out when my choke pull-off bracket broke!!! Good luck.
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
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