1965 Tri power Choke Question - Pontiac GTO Forum
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post #1 of 9 (permalink) Old 04-14-2019, 12:41 PM Thread Starter
 
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1965 Tri power Choke Question

]Having a problem with my engine running to rich. Tried adjusting the choke but I think something is missing. I have added a picture and as you can see the choke is capped off with a piece of tubing. Has been this way for the 40 years I have owned the car. Does cometning go on the end that is capped off ? Thanks
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post #2 of 9 (permalink) Old Yesterday, 05:33 PM
 
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]Having a problem with my engine running to rich. Tried adjusting the choke but I think something is missing. I have added a picture and as you can see the choke is capped off with a piece of tubing. Has been this way for the 40 years I have owned the car. Does cometning go on the end that is capped off ? Thanks
Ton of images on the internet which will show you. I assume your 1965 Service Manual would show this as well.

I attached a web shot of a '65 Tripower that should answer your question. Just click on the image.
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post #3 of 9 (permalink) Old Yesterday, 05:42 PM Thread Starter
 
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Ton of images on the internet which will show you. I assume your 1965 Service Manual would show this as well.

I attached a web shot of a '65 Tripower that should answer your question. Just click on the image.
Well unfortunately I dont have a service manual, but looking at the picture it doesnt seem that my choke can be working properly. Would like to get more info on how to fix this. Your pic appears that the choke is drawing manifold vacuum
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post #4 of 9 (permalink) Old Yesterday, 05:50 PM
 
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Well unfortunately I dont have a service manual, but looking at the picture it doesnt seem that my choke can be working properly. Would like to get more info on how to fix this. Your pic appears that the choke is drawing manifold vacuum
No, that is the exhaust heat crossover that goes under the carb - no vacuum. You can get a Service Manual on CD or a reprint from Ames Pontiac or even Ebay.
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post #5 of 9 (permalink) Old Yesterday, 10:17 PM Thread Starter
 
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Thank you
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post #6 of 9 (permalink) Old Yesterday, 10:19 PM Thread Starter
 
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One More Thing, I just looked at my manifold, there is no holes for the tubes in the manifold. I must have a different manifold. Maybe a 66
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post #7 of 9 (permalink) Old Today, 07:38 AM
 
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One More Thing, I just looked at my manifold, there is no holes for the tubes in the manifold. I must have a different manifold. Maybe a 66
If you need any parts, call Jon or Mike @ Pontiac Tri Power https://pontiactripower.com. They are super knowledgeable and friendly and will have whatever you want / need for your setup. In addition, they do rebuilds.

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #8 of 9 (permalink) Old Today, 07:51 AM Thread Starter
 
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great info thanks, will call them
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post #9 of 9 (permalink) Old Today, 10:32 AM
 
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If you want it original you have to go that route, but an easy change is to an electric choke, they pop right on one wire to key on power..

Very easy and they run well, heats electrically rather than from the exhaust crossover. A manual choke is easy as well.
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