Knock Bolt.

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Glyn.G
To the on ramp
Posts: 207
Joined: Fri May 30, 2014 5:41 am
Country: UK
Suzuki 2-Strokes: Suzuki GT380 B- Yamaha FZ1
Location: High Peak Derbyshire.

Knock Bolt.

Post by Glyn.G »

Hi All,
I have finished my GT380 project and have now started helping a mate with his Honda CB200 project. I know it's not a 2 stroke but my question is of a general nature.
Does anyone know what a Knock Bolt is as the manual keeps referring to them especially on the camshaft sprocket. I've tried googling them but all I get is woodworking fittings. Are they different from a standard bolt.

Regards,
Glyn.
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tz375
Moto GP
Posts: 6212
Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: Knock Bolt.

Post by tz375 »

I believe that they are referring to the stepped bolts that retain the cam sprocket. They are not a simple 6mm bolt in that they have a precise length and diameter of the plain part that goes through the sprocket. They are also much harder/tougher than stock bolt so that can withstand the repeated back and forth forces inherent in a cam.
Glyn.G
To the on ramp
Posts: 207
Joined: Fri May 30, 2014 5:41 am
Country: UK
Suzuki 2-Strokes: Suzuki GT380 B- Yamaha FZ1
Location: High Peak Derbyshire.

Re: Knock Bolt.

Post by Glyn.G »

Cheers tz375,
That makes a lot of sense to me now. Better get some ordered.
Regards,
Glyn.
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akendall1966
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Joined: Sat Jun 28, 2014 1:22 am
Country: United Kingdom
Suzuki 2-Strokes: T500_MKIII

Re: Knock Bolt.

Post by akendall1966 »

A 'shoulder screw' is the generic term here in the UK
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tz375
Moto GP
Posts: 6212
Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: Knock Bolt.

Post by tz375 »

Shoulder screw..... :shock:


That sounds typically British style kinky? :roll:

Or it may be what the bone doctor has in mind for my worn out shoulder :(
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