checking recon head valve work/seal

[steveo3002]

i have a reconditioned head i plan to fit due my old one having valve issues

the work looks fine but id like to confirm the valves are sealed before fitting , youtube suggests filling the port with white spirit /petrol and see if it leaks out is the way to go , is that the best way a home user can check theyre seated well or what?

[Mignon]

https://www.pistonheads.com/gassing/topic.asp?t=98...

[steveo3002]

yeah lots of arguing that you shouldnt lap them after machine work

i just want to check its a good job , dont know who did it so would rather spend an hour checking its good first

[Mignon]

steveo3002 said:

yeah lots of arguing that you shouldnt lap them after machine work.

The only opinion you want to take any notice of in there is Pumaracing's.