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HELP: 05 MazdaSpeed Miata Revival

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Old Jan 20, 2020 | 04:42 PM
  #21  
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Originally Posted by HarryB
Mind the sequence, and loosen in steps too.
Definitely, thank you for the reminder!
Old Jan 20, 2020 | 06:20 PM
  #22  
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Pictures with Bearing Caps Removed:





Old Jan 20, 2020 | 06:45 PM
  #23  
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Yeah, looks like you may have survived unscathed. I should have clarified, remove the caps and cams, as the aluminum head bears the brunt of oil starvation. But those look OK. Not great, but ok. Looks like a little scoring but if the head journals are ok, send it.
Old Jan 20, 2020 | 06:53 PM
  #24  
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Originally Posted by curly
Yeah, looks like you may have survived unscathed. I should have clarified, remove the caps and cams, as the aluminum head bears the brunt of oil starvation. But those look OK. Not great, but ok. Looks like a little scoring but if the head journals are ok, send it.
I had a suspicion you meant to remove the cams entirely too, but went with what was said. And yea, like you said, looks passable so far. I’ll remove cams when I get back to the garage and start separating the head from the block as I check for any damage.

If everything checks out I’ll be sending the head and the BP05 Block to a machine shop to get looked over and checked for straightness, then it’ll be time to start putting everything together.

Last thing I need to check today is the condition of the turbo.

Any advice when checking that? I’ve never owned or worked on a turbo car in my life(NA or SC is all I know) so any help with that is greatly appreciated.
Old Jan 20, 2020 | 08:15 PM
  #25  
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Should spin freely by hand and have minimal/zero play radially and axially.
Old Jan 21, 2020 | 09:12 AM
  #26  
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You might want to look for a new set of cams. The lobe tips look like they've got some wear on them.
Old Jan 22, 2020 | 04:16 AM
  #27  
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Originally Posted by themonkeyman
Should spin freely by hand and have minimal/zero play radially and axially.
Will be taking it apart(from manifold and access) and checking condition tomorrow. Was helping out a friend with their Turbo 1.6 today so didn’t get to play with the MSM at all unfortunately.

Originally Posted by Midtenn
You might want to look for a new set of cams. The lobe tips look like they've got some wear on them.
The cams lobes do have some spots where it looks like they got scored/excess heat at a few of the can lobe ends but I don’t think that will affect their performance.

I’ll be getting everything checked over at a machine shop shortly so I’ll know if anything is out of wack that can’t be discerned by eye at that time.

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