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Hit & Miss Gas Engine Discussion

Question re: gib keys w/split hub flywheels


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  #1  
Old 10-15-2019, 05:28:20 PM
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Chris Kirk Chris Kirk is offline
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Default Question re: gib keys w/split hub flywheels

Hello!

I'm going to be reassembling my FM-Z in a few weeks. The flywheels have split hubs with gib keys.

Do I insert the gib keys, then tighten the hub bolts, or tighten the hub bolts then insert the gib keys?

Thanks...

Chris
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Old 10-15-2019, 06:06:32 PM
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Mike Lucius Mike Lucius is offline
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Default Re: Question re: gib keys w/split hub flywheels

Tighten the bolt first then drive in the key. Doing the opposite is a sure way to crack a flywheel.
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Old 10-15-2019, 07:19:20 PM
Dustin D Ehli Dustin D Ehli is offline
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Default Re: Question re: gib keys w/split hub flywheels

You sure they are gib keys, on all the splits I have worked on had a straight key, but either way yes tighten the bolt pretty good before pounding in the key
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Old 10-15-2019, 07:56:21 PM
Tom Gosciminski Tom Gosciminski is offline
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Default Re: Question re: gib keys w/split hub flywheels

Split hub flywheels always use straight key (never a gib key)
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Old 10-17-2019, 11:51:47 AM
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Chris Kirk Chris Kirk is offline
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Default Re: Question re: gib keys w/split hub flywheels

Yes, sorry, they ARE straight keys, NOT gib keys.

Thanks for the responses.

Chris
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