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Joined: Mar 2006
Posts: 60
Trainee
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hi guys whats the size of the nut on the 2 stroke engines rotary 2 on the fly wheel under neath the motor oon a 160 2 stroke graham gsau22@yahoo.com.au
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Joined: Jan 2012
Posts: 1,391 Likes: 4
De-registered
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1/2" BSF 16 is the old size, but I only know mowers up until the mid 60's. Id like confirmation as to if and when they changed.
Either the ODK online store might have a listing, or your mower shop should know.
Its not a size youd find at The hardware or even specialty fastener shops in single form or on the shelf.
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Joined: Jan 2012
Posts: 1,842 Likes: 14
Moderator
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On the full crankshaft 160cc engines, as Blue says, that's the thread size. The nut hex size is 1" AF/SAE, on those 160's.
The half-crank Powertorque engine uses ISO Metric threads, and the corresponding nut hex sizes. For that nut, the thread is 14mm, but dunno what pitch or exact hex size - it will be one of the common metric hexes though.
But I haven't worked on a Powertorque, and have no particular desire to do so!
Cheers,
Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
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Joined: Jan 2012
Posts: 1,391 Likes: 4
De-registered
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Thankyou Gadge.
I was Sure all 125 and 160 full cranks used this size,but wanted confirmation:)
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Joined: Jan 2013
Posts: 956 Likes: 20
Moderator
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Not sure on the pitch on the powertorque but the hex size is 24mm
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