wm_reed Posted July 5, 2016 Share Posted July 5, 2016 Replacing the head gaskets on my 92 Loyale. Engine is removed, stripped down, cylinders are removed and on the work bench. A couple of questions as I progress....... 1. On the cam tower I have read to ensure the use of the metal reinforced O'rings on the cam tower (P/N 13089AA010). Is it just one O'ring per tower? 2. Looking at the Miles Fox video (#21) it shows a large O'ring for the whole cam tower being covered with Permatex grey. Is that O'ring purchased or made? Special material? 3. Are the alignment pins on the cylinders and block removable? Removing them would make it easier to clean the surfaces for the new head gasket. Should I remove them? Suggested technique for removal? 4. Seven Hydraulic Lash Adjusters (HLA's) spin freely by hand, while one is different (spins real hard, sticky, feels like metal to metal contact when it is turned). Seems like it needs replaced. Suggested technique for removal of this Hydraulic Lash Adjuster (HLA)? Can I replace just one? Happy Independence Day! Bill Quote Link to comment Share on other sites More sharing options...
DaveT Posted July 5, 2016 Share Posted July 5, 2016 1 o ring per side. Cam tower to head is anaerobic sealant, not oring. Except the pair I carved that groove out for one, and made oring for it. I never pulled the alignment pins. If you try, getting the block heated up to 190f will make it easier. Sometimes the lash adjusters get stuck in the sleeves. Quote Link to comment Share on other sites More sharing options...
MR_Loyale Posted July 5, 2016 Share Posted July 5, 2016 Sometimes the lash adjusters get stuck in the sleeve because the sleeve develops a slight lip the keeps it from coming out. The machine shop had to deal with that before they would come out when I did my engine two years ago. Quote Link to comment Share on other sites More sharing options...
wm_reed Posted July 7, 2016 Author Share Posted July 7, 2016 Thanks for the feedback. I appreciate the help Dave T and Mr. Loyale. 1 Quote Link to comment Share on other sites More sharing options...
Mack Truck Posted July 8, 2016 Share Posted July 8, 2016 i replaced all of my hydrolic lifters. they were like 4.00 a piece. how worn are your rockers? I had Delta Cam in Tacoma Wa reserface mine for 4.00 a peice too. cuz they get that worn spot in the center. Quote Link to comment Share on other sites More sharing options...
DaveT Posted July 8, 2016 Share Posted July 8, 2016 All of the ones I remeber have a "line" worn on them. I don't think I have seen any with less than 100k miles on them however. I just put them back in. Quote Link to comment Share on other sites More sharing options...
wm_reed Posted July 14, 2016 Author Share Posted July 14, 2016 Rockers do have the "line" worn on them. I intend to leave them as is. I have refurbished lifters coming from Mizpah. Once I have the lifters in hand I will remove the others from the head. Quote Link to comment Share on other sites More sharing options...
wm_reed Posted July 22, 2016 Author Share Posted July 22, 2016 Once the lifters showed up from Mizpah I learned how easy they are to take apart to clean and inspect. I did so and fixed the one that was giving me problems. 1 Quote Link to comment Share on other sites More sharing options...
DaveT Posted July 22, 2016 Share Posted July 22, 2016 What was making it stick? Gunk build up or wearing / burr? Quote Link to comment Share on other sites More sharing options...
wm_reed Posted July 23, 2016 Author Share Posted July 23, 2016 The check valve retainer cap had become separated from the piston. I cleaned it and put it back together. Quote Link to comment Share on other sites More sharing options...
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