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- - Is this lifter noise? (https://www.miataturbo.net/engine-performance-56/lifter-noise-94973/)

oregonmon

Oct 24, 2017 09:15 AM

Is this lifter noise?

Recently rebuilt bottom end, he said he lapped the valves. And checked the clearances, moved a couple shims to get them all into spec, which I'm not sure what spec that it. Ignore the rotrex tension on the throttle blip.

https://youtu.be/vmm-rwBcqE0

https://youtu.be/TlvczX2mFoA

edit. New cam seals, valve seals, head cleaned, and valves lapped.

Forrest95M

Oct 26, 2017 02:23 PM

links are broken

sshamrockk

Oct 26, 2017 08:29 PM

Links work for my on PC, kinda sounds like lifter. how long ago was the work done, and what kind of oil/age.

oregonmon

Oct 27, 2017 03:58 PM

Quote:

Originally Posted by sshamrockk (Post 1448055)

Links work for my on PC, kinda sounds like lifter. how long ago was the work done, and what kind of oil/age.

100+ miles

On 3rd oil change, Royal Purple 5w-30, then Rotella 5w-40, I just switched to Mobil 1 10w-30 to see if there was a difference. It seems quieter with the 10w-30 and hot but still even after nice and hot it's too much noise I think.

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