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-   -   Anyone have lifter bore specs? (https://www.miataturbo.net/engine-performance-56/anyone-have-lifter-bore-specs-43604/)

webby459 02-04-2010 11:09 AM

Anyone have lifter bore specs?
 
My fsm is on the home computer. Trying to get my engine builder moving. Can someone check out lifter bore diameter specs in their manual, if it's there, '99/'00, BP4W head?

If I end up getting it before someone replies, I'll put the specs here and lock the thread.

Thanks in advance, brohams.

webby459 02-05-2010 09:20 AM

Update, I didn't find any lifter bore dia/tolerance info in the 93 or 99 fsm, nor in the Haynes NA manual. One of the fsm's just stated to ensure the lifter traveled in the bore without sticking.

gospeed81 02-05-2010 12:15 PM

I forgot to check my Williams disc last night, but I don't remember seeing a spec either.

Will look this afternoon.

Want me to measure mine? It's a 1.6L in pristine condition, at least something to compare to. Head's disassembled on workbench.

webby459 02-05-2010 12:19 PM

If you don't mind and remember to check the disc, report back. Don't bother measuring the 1.6, he also has my 1.8 hydro head that he can measure, and it's just about perfect, as well. Thanks.

gospeed81 02-05-2010 04:21 PM

Ok...my Mitchell (not Williams) repair disc gave me this for the lifter bore spec on the '99:

1.1811-1.1821 (30.000-30.025)

webby459 02-05-2010 04:33 PM

1.181-1.182", thanks a lot, man. I really appreciate it. It checks out.

gospeed81 02-05-2010 04:51 PM


Originally Posted by webby459 (Post 518539)
1.181-1.182", thanks a lot, man. I really appreciate it. It checks out.

yeah, sorry, missed a 1 there.

No problem, glad it's all good.


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