Factory relieved 80" flathead cylinder

theory behind the gas travel paths

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thepigstye
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Re: Factory relieved 80" flathead cylinder

#16

Post by thepigstye » Mon Sep 10, 2018 12:44 pm

Thanks. I need to dychem and lay out for the paths



kitabel
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Re: Factory relieved 80" flathead cylinder

#17

Post by kitabel » Mon Sep 10, 2018 3:01 pm

The critical spot is where the outer edge of the valve seat fades into the relief. You should not feel anything when you slide your finger across, the relief replaces the factory machine cut.

thepigstye
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Re: Factory relieved 80" flathead cylinder

#18

Post by thepigstye » Mon Sep 10, 2018 3:05 pm

I'll make sure that happens

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Re: Factory relieved 80" flathead cylinder

#19

Post by RUBONE » Mon Sep 10, 2018 7:55 pm

These were the factory's specs for KR. Click on the pic and it will give you chopped off portion.
Attachments
KR relief specs.jpg
KR relief specs.jpg (321.96 KiB) Viewed 200 times
KR relief specs 2.jpg
KR relief specs 2.jpg (307.17 KiB) Viewed 200 times

thepigstye
Posts: 157
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Re: Factory relieved 80" flathead cylinder

#20

Post by thepigstye » Mon Sep 10, 2018 11:13 pm

Awesome. no other info needed now !!!! That says it all. Thanks
Mutt

kitabel
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Re: Factory relieved 80" flathead cylinder

#21

Post by kitabel » Tue Sep 11, 2018 2:46 pm

Neither the dimensions, the positions, or the shapes shown are applicable to a UL directly.

thepigstye
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Joined: Sat Oct 06, 2007 3:18 pm
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Re: Factory relieved 80" flathead cylinder

#22

Post by thepigstye » Tue Sep 11, 2018 2:55 pm

that's understood, but I really just needed to know, as I plan on using it on WL cylinders. I just thought of the 80 cylinders relief before thinking about the KR

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