recommened torq specs

[andrewterri]

On a '95 GTX I was wondering what you guys think for the torque on the jugs and head. The factory torque is too light and water comes out around the head bolts. 50 foot pounds maybe???

 

[racerxxx]

On a '95 GTX I was wondering what you guys think for the torque on the jugs and head. The factory torque is too light and water comes out around the head bolts. 50 foot pounds maybe???

Uh, No. Most engines only get torqued to 17 FT/LBS. I wouldn't exceed it.

Is it pitted under the heads of the screws? Did you replace the o-ring in the head? Is the channel the oring resides in good, no split walls, corroded? Later in Seadoo's life they started putting Loctite 242 under the heads of the screws, I would do that and re-torque the head make sure you start from the inside and more outward crossing back and forth.

 

[andrewterri]

It did not appear pitted. I can not figure out for the life of me how the engine keeps taking in water. When I torqued to the factory spec's, which 17 ft/lbs sounds right, the engine just wont seal. I used new gaskets and have went through 2 sets and still have water coming through the head bolts. When I tighten them water comes out through base gasket. I think I over tightened and lifted jugs up. I have went through the manual and verified the cooling system is hooked up correctly. All of this is happening after a top end job on a ski that was never put in the water when I got it. When I bought the ski it ran and I checked compression. The compression was low so I did a rebuild. Do you have any thoughts on what could be causing this?

 

[tkarvelis]

It sounds like your head or cylinders are warped. I had a DI that had both warped.

 

[mikidymac]

If you have water coming out of the base gasket you have something else wrong, not a torque issue.
Either.....
1. The cases or cylinder surface isn't clean or is pitted.
2. The cases or cylinder surface isn't flat.
3. The wrong gasket is being used.

If you did torque the cylinders to 50 ft/lbs you could have warped the cases.

Are the sealing surfaces clean and smooth?
Are the threads chased and clean.
Are you using grease on the heads and thread lock on the threads of the 8 bolts?

 

[andrewterri]

No I did not use grease on the heads? where does the grease go?

 

[mikidymac]

Get the service manual online and follow it exactly.
Thread lock on the cylinder bolt threads and grease under the bolt heads. It helps obtaining the proper torque.

I literally just did mine 10 minutes ago

 

[andrewterri]

I will do that thank you very much for your help.

 

[mikidymac]

No problem.