'82 is cold blooded..bad
Nov 1, 2019 | 09:02 AM
#1
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'82 is cold blooded..bad
My '82 runs pretty good overall but is cold blooded as hell. I've been parking it in the garage lately and it doesn't get that cold in the garage.
It has a manual choke and when I want to start it I choke it all the way and still have to rev the engine for a couple minutes before it will idle
without stalling. No idea how many actual miles are this engine and it has a rebuilt Weber 32/36 on it.
Is this normal or are there some adjustments I can make to the carb to fix it? By next year I will be parking the truck outside and we frequently
get single digit temps here in the winter.
Thanks
It has a manual choke and when I want to start it I choke it all the way and still have to rev the engine for a couple minutes before it will idle
without stalling. No idea how many actual miles are this engine and it has a rebuilt Weber 32/36 on it.
Is this normal or are there some adjustments I can make to the carb to fix it? By next year I will be parking the truck outside and we frequently
get single digit temps here in the winter.
Thanks
Nov 4, 2019 | 03:29 PM
#3
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Joined: Jun 2017
Posts: 237
Likes: 54
From: Crawlorado
Unfortunately, there is not a lot of instruction from Weber on how to tune a manual choke but they're pretty simple. The main thing is to make sure that your choke butterfly is at full close with the choke knob pulled out and full open when the knob is pushed all the way in. With a manual choke there is no idle kick down or high idle circuit. Just your hand changing the knob/plate and the plate changing your air-fuel ratio.
If it won't idle for you around 1400-1500 RPM with that plate completely closed, and assuming your warm idle speed is around 900 RPM, then you may need to adjust your carb for lean best idle again or even change a primary idle jet.
You could have a slightly clogged idle jet, your idle speed screw could be screwed too far in, you could have a vacuum leak somewhere that's bigger when it's cold, etc.
What is your timing set at?
And finally, Weber's are not as favorable in cold weather as a factory carb. The factory setup is designed to immediately route heat from a number of places toward the intake side of the engine when the temperature is so cold outside. When you add a Weber you immediately toss all that mysterious crap out and marvel at one's own engineering prowess. And yes, it may be freezing on the drive to work now and yes it cost more in gas now to get there, but who cares damn it! It's louder and you're pretty sure it's faster! And that means it's all worth it!!
If it won't idle for you around 1400-1500 RPM with that plate completely closed, and assuming your warm idle speed is around 900 RPM, then you may need to adjust your carb for lean best idle again or even change a primary idle jet.
You could have a slightly clogged idle jet, your idle speed screw could be screwed too far in, you could have a vacuum leak somewhere that's bigger when it's cold, etc.
What is your timing set at?
And finally, Weber's are not as favorable in cold weather as a factory carb. The factory setup is designed to immediately route heat from a number of places toward the intake side of the engine when the temperature is so cold outside. When you add a Weber you immediately toss all that mysterious crap out and marvel at one's own engineering prowess. And yes, it may be freezing on the drive to work now and yes it cost more in gas now to get there, but who cares damn it! It's louder and you're pretty sure it's faster! And that means it's all worth it!!
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