I don't use the seal, just apply a small amt of RTV when installing the guide.
To make them install easier, grind a litte champfer on the sharp edge on the top of the guide, put a little slim on the rubber makes it easier to install. WaltCan some one look at the picture I have attached and see if I have the rubber o ring and the valve guide retainer at the correct areas for assembly? It is my understanding this is the intake valve guide. Is that correct?