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Joined: Aug 2013
Posts: 2
Grease Monkey
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OP
Grease Monkey
Joined: Aug 2013
Posts: 2 |
my 1949 216 idles fine but chokes when acccelerated and there is poping and snapping in the carb when the rpms are up. I,m a novice mechanic and can,t figure out what to do next. Suggestions appreciated. lee49
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Welcome to Chevy Chatter!! Sounds like you have an accelerator pump issue, and also your carburetor might need a good cleaning and a rebuild.   
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Aug 2013
Posts: 2
Grease Monkey
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OP
Grease Monkey
Joined: Aug 2013
Posts: 2 |
Thanks I try that next lee49
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
Posts: 3,136 |
Your engine timing could be off...Try advancing the timing...Loosen the distributor and rotate in the direction of the advance mechinisum...Drive it around the block and see if it runs any better... That or maybe the advance mechinisum is not working at all...Stand on the passenger side and hit the gas lever and see if the distributor moves at all... You should see the distributor move...Your point gap also effect's the timing...Check it with a "dwell meter" or match book cover...what ever's handy....
Last edited by kevin47; 08/21/13 05:16 PM.
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
You could have sticking intake valves due to bad/old gas. Pour some Marvel Mystery Oil through the carb. air horn as per instructions on the MMo container. Le set over night after drowning out the engine with MMO.....don't for get to turn the key off.
Gene Schneider
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
Posts: 3,136 |
True...You did give rather "scant" details on whether the car has sat for awhile or this is a sudden occurance...Please tell us more...Could be any of the above : lack of fuel/timing/or sticky valves...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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