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Shade Tree Mechanic
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I have a 49 engine That I bought has three bent push rods and two broken intake rocker arms push rods in question are larger around than the rest of push rods I wonder if they are out of a 235 ?
Anyone have any Ideas.
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The damage was caused by stuck intake valves.
Gene Schneider
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If your car has been set up for a long time you would be wise to remove the valve cover and us a small hammer to strike the pushrod end of the rocker arm to see if the valve moves. If one or more are stuck you may have luck spraying WD-40 or any other type of lube directly on the valve through the layers in the ring and continue to gently strike the rocker arm with your hammer.  
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Could this have been caused by a stripped timing gear?
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The 216 isn't an interference engine so I don't think so. Stuck valves is almost always the issue. I went through the same thing with my '38 only I didn't break any rocker arms, just bent pushrods.
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1938 HB Business Coupe
1953 210 Sedan
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Joined: Jan 2002
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Yes, I didn't tthink of the stripped timing gears. Remove the distributor cap and turn over the engine if possible. If the rotor does not turn the gears are stripped. A common failure on old engines.
Gene Schneider
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Joined: Dec 2017
Posts: 69
Shade Tree Mechanic
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OP
Shade Tree Mechanic
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I done that rotor turns looked to be in time, The car it was in had sat for a long time, Looks like with the fat push rods it could have had a problem before. I was wondering if the replaced push rod could be to long?
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Joined: Jan 2002
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ChatMaster - 25,000
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ChatMaster - 25,000
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Compare "fat push rod" length to the thin pushrods.
The 216 push rod is 10 7/16" long.
The fat push rods probably are replacement type hollow push rods. A much better push rod the the Chevrolet thin type. I ran them in my '39.
Gene Schneider
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Joined: Dec 2017
Posts: 69
Shade Tree Mechanic
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OP
Shade Tree Mechanic
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I done that rotor turns looked to be in time, The car it was in had sat for a long time, Looks like with the fat push rods it could have had a problem before. I was wondering if the replaced push rod could be to long?
I aired Cylinders in question up with air balance tester we used on airplane engine and they all held 73 over 80 cold so valves are holding
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Joined: Dec 2017
Posts: 69
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2017
Posts: 69 |
Thanks , I will check them.
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