Heads with new guides put in 3000 miles ago have .020" of play?
#1
Heads with new guides put in 3000 miles ago have .020" of play?
I had my heads ported by Lloyd earlier this year, and they have about 3000 miles on them. I had him port them, mill them, put in 2.0" and 1.6" valves, and put in new bronze guides. I'm in the middle of putting on new springs (changing out 918's to pac 1518's) and I noticed all of them seemed lose to me, but I have no idea whats acceptable or not. But now I just got to one exhaust valve, and it seemed VERY lose to me, so I set up my dial indicator real quick, and it has .020" play in it. Is this accepteable? Or am I going to have put pull my heads and have this fixed?
:edit:
I'm not sure if you measure the play at the valve tip, or the base, it has .020" of play at the top, or .013" of play at the bottom of the vavle stem.
:edit:
I'm not sure if you measure the play at the valve tip, or the base, it has .020" of play at the top, or .013" of play at the bottom of the vavle stem.
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#9
Heres a picture showing the geometry. I don't have the intake manifold off yet so I can't put in a solid lifter to check the wear pattern, but when the rocker is on the base circle of the cam it is prety much dead center on the valve. I should have the heads off sometime this week...
http://s86.photobucket.com/albums/k1...t=100_0364.jpg
http://s86.photobucket.com/albums/k1...t=100_0367.jpg
http://s86.photobucket.com/albums/k1...t=100_0364.jpg
http://s86.photobucket.com/albums/k1...t=100_0367.jpg