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Post Info TOPIC: Rochester 2bbl 2gc question
Magnus


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Rochester 2bbl 2gc question
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hello,

by repairing my 7012452 rochester carb I found that this connection was open (photo), the one top left above the 2 idle mix screws.

Wonder what is normally connected to it ?

if some of you experts can help please ?

The carb is mounted on a 1958 Laurentian.

Thank you in advance

Magnus



-- Edited by Magnus on Saturday 9th of June 2018 03:44:33 PM

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pontiax


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91C5BB55-8460-4AD7-B419-FF74F04ED870.jpegimage.jpeg



-- Edited by pontiax on Saturday 9th of June 2018 05:08:20 PM



-- Edited by pontiax on Saturday 9th of June 2018 05:09:57 PM

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pontiax- (canadian pontiac X frame)1964 Parisienne 2dr. Hardtop ,lagoon aqua metallic (Q) ,421 cid Dart Industries block and heads. 550 hp. 575 ft lb  of torque.

 
GLHS60


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Hopefully this helps also Magnus.

 

Thanks

Randy

 

 

 

10292154_2014316163521.jpg

 

https://www.ebay.com/itm/2GC-ROCHESTER-CHEVY-CARB-DISTRIBUTOR-VACUUM-ADVANCE-LINE-RAT-ROD-HOT-STREET-1955-/282728633750

s-l300.jpg

 

 



-- Edited by GLHS60 on Saturday 9th of June 2018 07:52:43 PM

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Magnus


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Thank you both very much for the help, much appreciated !

I have a modern electronic ignition system installed that's why this port is not connected what I was not aware of.

What documentation do you recommend in case I run in similar situations like this to help my self ?

What I have is a Pontiac 1958 Maintanance Manual Series 7000 but that is not very detailed, is something only available ? 

Thank you and best regards

Magnus



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Magnus


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Magnus wrote:

Thank you both very much for the help, much appreciated !

I have a modern electronic ignition system installed that's why this port is not connected what I was not aware of.

What documentation do you recommend in case I run in similar situations like this to help my self ?

What I have is a Pontiac 1958 Maintanance Manual Series 7000 but that is not very detailed, is something maybe online available ? 

Thank you and best regards

Magnus

 



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DonSSDD


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What electronic system do you have? If its vacuum driven, you would connect it to this port. If not vacuum driven, you should close this port. Post a pic of your distributor.

I have a stock distributor converted to electronics with a Pertronics, it uses vacuum.

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic
seventy2plus2


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Didn't you hear the vacuum leak from that port?

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 
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