20v BT valves choice

[oldeskewltoy]

(05-21-2019 10:52 PM)izanagi Wrote:  

(05-21-2019 04:42 PM)oldeskewltoy Wrote:  Stem and guide "work" together..... the same FSM lists maximum valve/guide clearance. I'd recommend using that before you condemn the valves.

Exhaust valve - 0.1mm (.0039")

Intake valve - 0.08mm (.0031")

If they still are too small..... the choice is yours... replacing OEM valves, with OEM can get pricey, or you go oversize with Supertech....

As to Supertech... OEM valves the intake stem is larger, but with the Supertech the exhaust stem is larger........ not sure why that is....

After checking every valve stem, they are all between 4.92 and 4.93 mm. Inside valve guide is 5 mm.

sounds like you are no more then .08mm.... as long as valve margins are within spec ...it's your call, but I'd likely re-assemble with new seals and call it good.