Super Jet About to replace my crank seals...

[NorCalSJ]

About to replace my crank seals...
Any tips? lol when I put the new seals in do I need to put grease on them or gasket maker? Any help would be appreciated, about to tear it apart...gonna go rent a harmonic balance puller from kragen right now...hope I dont mess this up :fingersx:

 

[chriselmore_1]

why are you replacing the seals?
pulll the coupler off before you split the cases. And put grease in the lips of the seals

 

[NorCalSJ]

front seal is leaking...im guessing the coupler just pops off dont see any fasteners?

 

[Rickster]

front seal is leaking...im guessing the coupler just pops off dont see any fasteners?

The coupler screws off... Get a big ing pry bar and some heat to make it a little easier....

 

[NorCalSJ]

me so I shouldve taken the coupler off before taking the flywheel off?? :rant:

 

[Tyler Zane]

i would use a flywheel lock, if you dont have a flywheel lock then the flywheel really doesnt matter.

 

[NorCalSJ]

i would use a flywheel lock, if you dont have a flywheel lock then the flywheel really doesnt matter.

Yeah I got one from cold fusion, I just put the flywheel back on without the bolt and flywheel lock, now trying to get the coupler to budge, need another person to sit on my motor to hold it in place while I use my 5 foot breaker bar lol...

 

[Pablo]

heat

 

[NorCalSJ]

Prybar wasnt working even with a 5 foot breaker bar...so just used a hammer and knocked the coupler loose. Bottom case says torque 2.8kg is that 6 in/lbs or 6 ft/lbs? I searched 2.8kg and it just says it converts to 6 pounds so is that in or ft?

 

[StandupEd]

did you use any heat?

 

[kev.t]

2.8kg/m= 20.651739393lbf/ft

 

[NorCalSJ]

did you use any heat?

nope few good smacks knocked it loose

 

[NorCalSJ]

2.8kg/m= 20.651739393lbf/ft

So 248in/lbs? Multiple by 12...Isnt that really tight, my torque wrench tops out at 250in/lbs does that sound right?

 

[kev.t]

have a look here. 2.8kg/m converts to 28Nm
http://www.unitconversion.org/unit_converter/torque.html

 

[NorCalSJ]

have a look here. 2.8kg/m converts to 28Nm
http://www.unitconversion.org/unit_converter/torque.html

Couldnt get any of the converters to work, but thanks 28Nm is 248in/lbs.
What should I do next, just lift up on the crank a little to remove seals? Marine grease around new seals and install. Clean all mating surfaces? What should I use to seal it back together? Heres a couple pics of it apart.

 

[Shadow7874]

You will have to lift the crank a bit to get out the seals. Id try to spin it so the pistons are in the middle so you dont have to worry about the rings popping out if your only moving the crank out an inch or so. I didnt use any grease on the crank seals but it doesnt sound like it would hurt. Definitely clean the mating surfaces as good as you can. Yamabond/hondabond/threebond is what you need for sealing it all back together.

 

[kev.t]

threebond 1211 for me on the mating case surface. apply a very thin bead to one side only.

 

[JetManiac]

You will have to lift the crank a bit to get out the seals. Id try to spin it so the pistons are in the middle so you dont have to worry about the rings popping out if your only moving the crank out an inch or so. I didnt use any grease on the crank seals but it doesnt sound like it would hurt. Definitely clean the mating surfaces as good as you can. Yamabond/hondabond/threebond is what you need for sealing it all back together.

We use 'Yamabond/hondabond/threebond' on the cases and on the outside of the crank seals.

 

[Mark44]

we use 'yamabond/hondabond/threebond' on the cases and on the outside of the crank seals.

x2

 

[Proformance1]

ahhh I see you are doing the gasket install only. forget my pm about cleaning the crank then, that would be difficult all together lol