Subject	You may be able to notice the material strain
Posted by	-Grimm- on July 30, 2015 at 9:27 AM
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In Reply To	I am rebuilding a set of heads for the first time and would posted by z32z on July 29, 2015 at 07:10 PM
Message	in the valve stem, but it would be easier to do as mentioned above and spin the valves on some fixed point (a drill) I know the 1990 heads suffered from CAS misalignment, I cant remember if it is related to the machining of the head (which im fairly confident it was) or the machining of the CAS bracket, but that is probably what you have heard. ------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Est. 400 HP) 1990 300ZX TT 5 Sp (Est. 600 HP) 2004 G35 Sport 6MT (DD) 2008 Honda Civic (DD) 1969 Chevy C10 (Toy) 1969 Chevelle (Toy)
Follow Ups	I am rebuilding a set of heads for the first time and would - z32z 19:10:58 07/29/15 Depends how bent the valves are. Easier to see the bends - zxtuner161 07:52:57 07/30/15 You may be able to notice the material strain - -Grimm- 09:27:11 07/30/15 Thank you for the input. I placed each valve in a drill and - z32z 14:15:48 07/30/15 Most likely thinking of "soft valve" issue w/ 90 (n/m) - FrozTTy 10:25:46 07/30/15 Re: Most likely thinking of "soft valve" issue w/ 90 - wild_maxx 14:34:29 07/30/15 This is great info. Thanks. - z32z 15:45:10 07/30/15 Why not have the machine shop measure the valves? - zellamay 14:28:43 07/30/15 Lap valves - EngineerLV 21:05:31 07/30/15 Not necessarily true - ZXoltan 06:13:25 07/31/15
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