Hydraulic lifter -- valve lap -- grind?

[a_kelley]

Got a '97 Kia 2.0 DOHC I'm fixing for my wife.. PO overheated and warped the seats a little (.001 - .003).. I got the valves to seal again by lapping them in (yeahhh.. probably should've dropped it off at a machine shop but the last one was $250)

Question is: I cannot find clearance spec for the valves with the hydraulic lash adjusters. I know the adjusters/lifters only take up so much, and I know the valves must have some clearance (with lifters not built up) or they will hang open.. So, if someone has built one, what clearance should I shoot for? .012? .006? It's actually a Mazda motor, but it seems those mazda guys are always just trying for more HP so its all hi-performance done, and farmed out for valves.

any help is appreciated

 

[Croatan_Kid]

A few thou isn't going to make a different to a hydraulic lifter. I'd just put it together and roll with it. While I had it apart, I might drop some new lifters in it though. If anything, you'd make up your difference with different length pushrods, but chances are there aren't any readily available in different lengths for that particular motor like there would be for, oh, say a GM LS based engine.

 

[transman731]

it's overhead cam, there is no pushrods

you are actually supposed to measure valve height, there is technically no adjustment with the hydraulic lifters.

give me a few minutes and i will find the measurements

 

[transman731]

 

[a_kelley]

thanks Lee! that is exactly what I was looking for.

 

[Croatan_Kid]

Whoops...forgot we were working on an overhead cam

 

[a_kelley]

Well.. I guess I did something right. It runs good.