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How tight engine bolt nuts ?

Posted: Thu Mar 26, 2020 3:07 am
by operonalan
Probably on here somewhere but can’t find it in any search .

How tight should your main engine Bolt nuts be ...running 230 cc Monza engine ...too tight or too slack would be a Potential source of vibration / poor handling ?

Thanks

Re: How tight engine bolt nuts ?

Posted: Thu Mar 26, 2020 4:40 pm
by Scooterdude
I don’t think it’s an exact science but I found if to tight I get a bit to much vibration, so tighten up and back off slightly works for me.

Re: How tight engine bolt nuts ?

Posted: Thu Mar 26, 2020 6:59 pm
by HxPaul
However tight you fasten them,make sure you fit the rear shocker first.If you tighten them first,when you lift the engine to fit the rear shocker the rubber inside the silent blocks will be stretched.

Re: How tight engine bolt nuts ?

Posted: Thu Mar 26, 2020 8:30 pm
by Tractorman
Sticky's new manual recommends 50ftlds.

Re: How tight engine bolt nuts ?

Posted: Fri Mar 27, 2020 12:47 am
by operonalan
Thanks for that .... no figure in the red or orange editions ....👍

Re: How tight engine bolt nuts ?

Posted: Fri Mar 27, 2020 10:16 pm
by coaster
I was going to say Tight but make that Fekin Tight if you are using offset cones

Re: How tight engine bolt nuts ?

Posted: Tue Mar 31, 2020 10:40 pm
by rosscla
Yes what coaster said - the inner shell should pull in against the cone and compress into the frame - with concentric cones it's not the end of ten world if they rotate a bit - though they shouldn't - with offset cones you do not want them to turn under any circumstances.

Re: How tight engine bolt nuts ?

Posted: Tue Mar 31, 2020 11:48 pm
by coaster
rosscla wrote:
Tue Mar 31, 2020 10:40 pm
Yes what coaster said - the inner shell should pull in against the cone and compress into the frame - with concentric cones it's not the end of ten world if they rotate a bit - though they shouldn't - with offset cones you do not want them to turn under any circumstances.
A smear of bearing lock fluid is a good idea too but not too much as you dont want it to get on the bolt.