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-   -   Is this crank still okay? (https://www.miataturbo.net/engine-performance-56/crank-still-okay-99007/)

jpnMiata Jan 13, 2019 08:13 PM

Is this crank still okay?
 
Hey all, I recently picked up a 94 1.8l engine that I was doing a refresh on until I tried to remove the timing gear, which was almost glued to the crank snout. I managed to remove the timing gear but the crank snout is a little gacked up. Is this okay to reuse provided I clean up the raised metal or should I look for a used crank. I'm a noob so if I'm being a dumb then let me know
https://cimg5.ibsrv.net/gimg/www.mia...f5909d88b9.jpg

rleete Jan 13, 2019 08:45 PM

Stone it. Use it.

matrussell122 Jan 13, 2019 08:51 PM

I would also use it

jpnMiata Jan 13, 2019 09:03 PM


Originally Posted by rleete (Post 1518671)
Stone it. Use it.

By stoning do you mean a fine grit sandpaper or is there a different method?

Jconn335 Jan 13, 2019 09:24 PM


Originally Posted by jpnMiata (Post 1518675)
By stoning do you mean a fine grit sandpaper or is there a different method?

Sandpaper or emory cloth. Go slow and continally check your fitment with the timing gear. Remember - you can always take off more, you can never take off less! Slight imperfections on the pulley mating surfaces are fine if they're minimal. Mating surfaces for seals and journals are where you have to worry about marring the surface.

jpnMiata Jan 13, 2019 10:03 PM


Originally Posted by Jconn335 (Post 1518678)
Sandpaper or emory cloth. Go slow and continally check your fitment with the timing gear. Remember - you can always take off more, you can never take off less! Slight imperfections on the pulley mating surfaces are fine if they're minimal. Mating surfaces for seals and journals are where you have to worry about marring the surface.

Will do. Thanks for the tip!

rleete Jan 14, 2019 08:07 AM


Originally Posted by jpnMiata (Post 1518675)
By stoning do you mean a fine grit sandpaper or is there a different method?

Sandpaper will work if you use fine stuff, but I really meant a machinist's stone. A knife sharpening stone works in a pinch.

As stated, just take off the burr and no more.


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