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Joined: Nov 2011
Posts: 62
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2011
Posts: 62 |
I ran a compression test on my 1957 235 engine today, number 4 cylinder shows 0 compression. What might be the problem and how to check? It is pushing air out of the exhaust.
DOC
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Jan 2008
Posts: 828 Likes: 6
ChatMaster - 750
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ChatMaster - 750
Joined: Jan 2008
Posts: 828 Likes: 6 |
I would start with removing the valve cover and see if you have a valve stuck open, then next back off the valves on that cylinder to make sure they are closed and put air in the cylinder. Air out the exhaust valve bad out the carb valve bad into the crankcase rings or hole in piston. If you can hook up a air compressor to that be careful the engine will turn over some if that piston goes to the bottom of the cylinder.
Dens Chevys 1927 Speedster 1928 coupe 1941street rod 1947Fleetline 4 door 1949 1/2 ton Pickup (sold) 1954 210 4 door 1972 Monte Carlo 2003 Corvette convt..
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Joined: Nov 2011
Posts: 62
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2011
Posts: 62 |
Thanks for the information.
DOC
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