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-   -   Anyone have a 1.6L flywheel laying around they can measure? (https://www.miataturbo.net/general-miata-chat-9/anyone-have-1-6l-flywheel-laying-around-they-can-measure-10426/)

y8s 06-12-2007 03:23 PM


Originally Posted by akaryrye (Post 122363)
I got one sitting in the backyard and a digital caliper in the closet, ill brb with the measurements after I read thru the recent posts

holmes you win the motherfuckin prize! ...after you read thru the recent posts.

keinayo 06-12-2007 04:41 PM

I have my original 1.6 flywheel. Let me know if you want to meet and measure it.

y8s 06-12-2007 04:50 PM


Originally Posted by akaryrye (Post 122363)
K, got some measurements for u, I was not exactly sure what you needed, but hope it helps.
158mm ID of friction surface
276mm OD of friction surface, however there is 117mm of usable material beyond that until the edge of the disc (not counting the teeth obviously) The pressure plate bolts are less than half of an inch inward of the edge of the flywheel. Also I dont have any way to really measure how thick the metal is at the friction surface

this is for a 1.6? hmmm.. seems kinda large for what i was thinking.

thanks tho!

neogenesis2004 06-20-2007 11:47 PM

Whelp, I got my used tilton in from ebay and put it on top a spare 1.6 flywheel. The friction surface will need to be machined back about 1cm ish and the entire area outside of the friction surface will need to be milled down so that the step is 0.100" tall. Also the machine shop would need to center the cover on the flywheel and drill/tap holes to mount it.

If you look carefully you will see that the ID of the friction surface is already the perfect diameter for the tilton clutch discs. The discs that came with this used clutch is a 3 plate sintered metallic package. I am ditching it and have already ordered a new PP that goes with the 2 disk rally setup and will be ordering custom clutch discs from clutchnet like matt (y8s) did. I was quoted an estimated $45 for the job after describing what needed to be done over the phone. He said to him it just sounded like a custom resurface, which other than drilling/tapping it is. It might run a bit more because they would charge by the hour for the work but he said it would be 2 hrs max (so $90 max).

I will be dropping it off by monday along with my block/pistons.

Here are the pics:
http://filebox.vt.edu/users/gouldmab...1807_17501.jpg
http://filebox.vt.edu/users/gouldmab...1807_17502.jpg
http://filebox.vt.edu/users/gouldmab...1807_17511.jpg
http://filebox.vt.edu/users/gouldmab...1807_17512.jpg
http://filebox.vt.edu/users/gouldmab...1807_17521.jpg

y8s 06-20-2007 11:57 PM

too cool. any idea what the spring in the cover is? does it have a code on it?

neogenesis2004 06-21-2007 12:08 AM

I havent looked, do I have to take off those little nuts to find out?

y8s 06-21-2007 09:52 AM

no, and dont. that's a lot of spring pressure to release.

it should be on the fingers near where the release bearing rides. probably a 3 letter code. BUF, ORA, GRN, etc.

neogenesis2004 06-21-2007 11:43 AM

It is a grey spring.

y8s 06-21-2007 12:16 PM

so it's about 30% more pressure than mine. that's probably not too bad. probably hold 400 ft lbs with organic disks and the high ratio pp.

neogenesis2004 06-21-2007 12:37 PM

You just gotta gimmie those disk spec now so I can call clutchnet up :)

dedonderosa 06-21-2007 10:42 PM

i my still have one


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