15 HP EVENRUDE ROD CAP TORQUE

[BRC]

I am rebuilding my engine and just got the crank and the pistons back in and have torqued the piston arm caps back in place but I beleive I have over torqued one. Spec is for 5 to 7 ft-lbs and one of them may be around 10. I am afraid to back it off to re-torque because it is a allen wrench head which is acting like it wants to strip. If by trying to back it off it does strip I am done. Is this not a big deal. I need to know before I go ahead and seal up the case.

 

[OBJ]

Re: 15 HP EVENRUDE ROD CAP TORQUE

Hey BRC....if the allen head feels like it wants to strip, cut the allen head wrench down a little and make it fit better.<br /><br />If the threads feel like the want to strip, then it's already done. Pull the fastener and take a look. Don't take a chance on feel. Know the condition. May save the rebuild.<br /><br />Good Luck and keep us posted.

 

[BRC]

Re: 15 HP EVENRUDE ROD CAP TORQUE

Outboard Jim<br /><br />Its not the allen head that wants to strip or the threads. Its the female insides of where the allen head turns against. Do you think the 3 to 4 ponds of over torque is a concern?

 

[Paul Moir]

Re: 15 HP EVENRUDE ROD CAP TORQUE

I'm not Outboard Jim, but if I were you I would remove the screw with the aid of a vice-grip wrench around the outside of cap screw. This will help the allen bite and the relief.<br />Those are the single most important fasteners on the outboard. 10 ft-lbs is asking for disaster. In fact, I strongly advise you torque them with an inch-lb rating torque wrench for precision. Also, when you do get the fastener out, you should replace it with a new one. If it's already streched it's ruined.<br />Little engines are just like big engines, just smaller. Specs are every bit as critical.<br /><br />Good luck!

 

[bonitoman]

Re: 15 HP EVENRUDE ROD CAP TORQUE

They are cheap enough to buy new. Go to a local dealer and get 4 rod cap bolts. If you do not have the precise fit and torque it will destroy all the good work that you have done on your rebuild to save a lousy $15 for new bolts.

 

[Hooty]

Re: 15 HP EVENRUDE ROD CAP TORQUE

If you're not using all new rod cap bolts, you're asking for trouble anyhow. <br /><br />c/6<br />Hooty