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10-05-2019, 07:59 PM
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#1 |
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Registered User
Join Date: Oct 2012
Location: mountain view arkansas
Posts: 1,299
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rebuilt 235 popping through carb
I just got a rebuilt 235 running today. It is popping though the carb bad like an intake valve is open. I double checked my wires and valve adjustment. Everything seems fine and it in the correct order. It will idle but has no power and is of course missing. I did notice one of the lifters did not seem pumped up. I let all of them soak in oil for like a week before installing them. The engine has a worked head new rings and main and rod bearings.Also it has a new carb and a one wire dist. new plugs and wires.
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http://67-72chevytrucks.com/vboard/s...d.php?t=548705 |
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10-06-2019, 11:42 AM
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#2 |
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Senior Member
 Join Date: Jan 2009
Location: huntington beach california
Posts: 975
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Re: rebuilt 235 popping through carb
Check to be sure the distributor is in the right tooth
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Pulatoy |
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10-06-2019, 02:58 PM
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#3 |
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Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,799
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Re: rebuilt 235 popping through carb
Could the cam gear be a tooth off?
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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10-06-2019, 08:14 PM
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#4 |
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Registered User
Join Date: Jun 2016
Location: Phoenix AZ
Posts: 429
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Re: rebuilt 235 popping through carb
When is the last time the tank was replaced or cleaned?
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10-06-2019, 08:39 PM
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#5 |
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Registered User
Join Date: May 2016
Location: Henderson NC
Posts: 975
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Re: rebuilt 235 popping through carb
Check the valve adjustment.
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10-07-2019, 01:31 AM
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#6 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: rebuilt 235 popping through carb
X's 2 on the valve adjustment and recheck the timing making sure TDC is correct as well...
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
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10-08-2019, 09:40 AM
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#7 |
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Registered User
Join Date: Jan 2013
Location: Calgary Alberta
Posts: 1,164
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Re: rebuilt 235 popping through carb
A compression check could help in isolating the problem.
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10-09-2019, 03:15 PM
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#8 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 897
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Re: rebuilt 235 popping through carb
I concur on the compression test.....will help you determine which cylinder is affected.
Please let us know what you find! Thank you. |
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10-15-2019, 08:46 PM
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#9 |
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Registered User
Join Date: Oct 2012
Location: mountain view arkansas
Posts: 1,299
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Re: rebuilt 235 popping through carb
I changed the lifters back to solid and readjusted the valves. Runs fine now
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=548705 |
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10-16-2019, 04:11 PM
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#10 |
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Account Suspended
Join Date: Jun 2015
Location: No longer here
Posts: 1,000
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Re: rebuilt 235 popping through carb
The very first post gave it away... lifter didnt pump up.
Originally the motor had solid lifters.... why were different lifters installed. New cam ? Just wondering...... Posted via Mobile Device |
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