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351 motor help

Justin Lee

New member
I recently aquried a boat with a 351w in her...
Im tearing her down soon to rebuild but wanted to see if she would even turn over??
There not being a starter a grabed a bih socket stuck it on the crank and tried rotating her....got a bit of turn...I heard the compression inside sounded good...but then i got to a point where it locked up amd would go anymore....so i tried the other way...with the same affect after some turning i got to a point where it stops....

The turning was very hard and is it bad that it stopped?

Thanks for the help...id poat pics but i cant figure out hpw to load picture...
 
First...... be very careful when using the crankshaft bolt to rotate the engine!
You do not want to risk breaking this bolt!

Are you attempting to turn the engine over with the spark plugs removed?




.
 
Nope...see already I realize the compression was building with the spark plugs in right?
I need to remove the plugs anyways so ill try that today...
Im ordering new topend gasket kit, spark plugs, wires, new hi performance coil,
And a new holly 4bbl carb
 
Nope...see already I realize the compression was building with the spark plugs in right?
I need to remove the plugs anyways so ill try that today...
Im ordering new topend gasket kit, spark plugs, wires, new hi performance coil,
And a new holly 4bbl carb

Ayuh,.... Is it still hooked up to it's transmission,..??
If so, separate 'em to see which is seized,...
If it's the motor, yer gonna need more than a top-end kit,...
 
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