Author Topic: KEY WEST HEAD NUT TORQUE SPECS  (Read 641 times)

Cheveyo

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KEY WEST HEAD NUT TORQUE SPECS
« on: October 21, 2016, 11:45:07 AM »
Replacing the piston on my Key West. Does anyone know the torque specs on the head nuts in foot pounds? I found a generic manual that says 120-130 kgs cm but I'm having trouble figuring out what that is in foot pounds. Don't want to break the head bolts. Thanks
« Last Edit: October 21, 2016, 12:02:20 PM by Cheveyo »

Cheveyo

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Re: KEY WEST HEAD NUT TORQUE SPECS
« Reply #1 on: October 21, 2016, 11:51:43 AM »
Is 90 to 95 foot pounds sound right?

Cheveyo

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Re: KEY WEST HEAD NUT TORQUE SPECS
« Reply #2 on: October 21, 2016, 12:18:24 PM »
Found a better converter. Seems like 8.5 to 9.5 pounds should do it.
http://www.convertunits.com/from/kg-cm/to/foot-pound+force

harry

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Re: KEY WEST HEAD NUT TORQUE SPECS
« Reply #3 on: October 21, 2016, 12:36:26 PM »
so i use a 3" ratchet and snug it up  usually .
whats most important is that you tighten up in the "x" pattern.

 also did you put in the piston the right way? the arrow points to the exhaust
 not up like many people do and then wonder why the motor doesn't start.

oilyhans

i own a scooter shop  with rentals ,sales& racing parts.
i also appraise scooters for KBB.

2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm  springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide

Cheveyo

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Re: KEY WEST HEAD NUT TORQUE SPECS
« Reply #4 on: October 21, 2016, 02:19:56 PM »
Yes arrow pointing to the exhaust and ring openings on the little pins in the grove. Just wanted to be sure I didn't break a head bolt.

harry

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Re: KEY WEST HEAD NUT TORQUE SPECS
« Reply #5 on: October 21, 2016, 04:50:02 PM »
super... there sometimes is a top ring and a
bottom ring  depending on the mfg of the piston kit..

oilyhans
i own a scooter shop  with rentals ,sales& racing parts.
i also appraise scooters for KBB.

2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm  springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide