stockracer Posted October 16, 2009 Report Share Posted October 16, 2009 I had a set of heads worked, had screw in rocker arm studs installed. When i tried to put the stud girdles on, one of the heads seemed to be drilled crooked. I pulled each of the studs on #1 cylinder in toward each other about 1/4 of an inch to get them in the slots on the girdle. Can anyone tell me if this is too much, is it going to break the casting in the head or the rocker arm stud? Any help is much appreciated. Link to comment Share on other sites More sharing options...
Danielsen Motorsports Posted October 17, 2009 Report Share Posted October 17, 2009 You could have a stud failure real easy because you are bending it to where it should be. You should also double check your stud girdle to make sure its true and level. Be careful how you adjust your valves. If you are loosening your stud girdle to adjust your valves and then the studs are bending when the girdles are being reapplied then you are changing your valve lash. I have also learned this as well it turned out to be our stud girdles. Even though the GM bolt holes werent perfect the girdles were causing them to bend too much. Link to comment Share on other sites More sharing options...
thomasghamilton Posted October 17, 2009 Report Share Posted October 17, 2009 I had a set of heads worked, had screw in rocker arm studs installed. When i tried to put the stud girdles on, one of the heads seemed to be drilled crooked. I pulled each of the studs on #1 cylinder in toward each other about 1/4 of an inch to get them in the slots on the girdle. Can anyone tell me if this is too much, is it going to break the casting in the head or the rocker arm stud? Any help is much appreciated. Check also the rocker studs them selves. Some cheaper brands will have lots of runout. Loosen them and see if they are true when screwing them in or out. Also make sure the chamfer in the head matches the stud. Link to comment Share on other sites More sharing options...
kemac66 Posted October 18, 2009 Report Share Posted October 18, 2009 Either faulty stud girdles or crappy machine work, see if they fit properly on another head, are they misfit on both heads if you swap sides, is it the same cylinder that don't match up. if so its the machine shop screwed up Link to comment Share on other sites More sharing options...
stockracer Posted October 19, 2009 Author Report Share Posted October 19, 2009 I tried the stud girdle on the other head, fit just fine. I took hte studs out of the cylinder in questoin and removed the guide plate, put the studs back in hand tight, everything lined up fine. I found some stuff that looked like clear RTV, but thicker and harder, under the guide plate that was causing it to sit at an angle on the head. I cleaned this off, reassembled with loktite, everthing is good now. Link to comment Share on other sites More sharing options...
champkrt1 Posted October 19, 2009 Report Share Posted October 19, 2009 I tried the stud girdle on the other head, fit just fine. I took hte studs out of the cylinder in questoin and removed the guide plate, put the studs back in hand tight, everything lined up fine. I found some stuff that looked like clear RTV, but thicker and harder, under the guide plate that was causing it to sit at an angle on the head. I cleaned this off, reassembled with loktite, everthing is good now. Good information to know, thanks for sharing! Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.