50hp 74' Johnson Crankshaft Bolts

[Chrisravosa36]

I cannot figure out how to get these bolts off!!! I cant deem to find the right rocket, any tips? It looks to be 9.5mm but when I put it on, its to loose? Is there a special tool?

 

[Faztbullet]

It a 12 point 5/16 or you can use a 8mm 12 point.

 

[Chrisravosa36]

Ok thank you very much, I though it was a bigger one!

 

[Chrisravosa36]

Cant seem to get it to budge at all? Any tips? I tried some heat, and then some PB.

 

[F_R]

They are TIGHT by design. Get meaner, they will come out. Don't heat them! You need a pretty high quality socket to stand the strain. Most of us have broken a socket or two.

BTW, the installation torque spec is 348-372 INCH pounds. You must use a decent torque wrench. I don't consider a foot pound wrench to be accurate enough. That's only 2 ft pounds tolerance.

 

[James R]

Try using a bar or torque wrench at least 14" long. They break free easily then.

 

[Chrisravosa36]

Try using a bar or torque wrench at least 14" long. They break free easily then.

I USED A 24' TORQUE WRENCH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ha but I really did, not a single one even bugged on me....

 

[racerone]

A 24' wrench seem too big.--------I use a sn***n 12 point deep socket.-----Used it so many times that it wore down.---Ground off just over 1/8" and it works just like new again.----Never a problem !

 

[Chrisravosa36]

-Ground off just over 1/8" and it works just like new again.----Never a problem !

What do you mean?

 

[racerone]

???---the points wore off inside the socket.---Ground off the worn bits and the socket is like new again.----Used this socket on hundreds of these bolts , taking them off and installing them.---Never a problem !.

 

[Chrisravosa36]

???---the points wore off inside the socket.---Ground off the worn bits and the socket is like new again.----Used this socket on hundreds of these bolts , taking them off and installing them.---Never a problem !.

Oh ok, I thought you meant the bolts, thats what Im having trouble with, they like to slip very easily.

 

[racerone]

????--These are "high tensile alloy " bolts.---The material has a strength of around 180,000 PSI---Not likely to wear the points off the bolts with a quality socket !

 

[Chrisravosa36]

Ok, so it must be my socket, how did you grind yourse down?? ALso, are husky sockets anygood, thats what ive got.