the problem I found was the screws were already soft (you don't want to anneal them) I stayed away from heat because I thought it would distort the panels. some screw heads broke (not many)....so I drilled them off with a cobalt bit then grabbed the threads with a vice grip and turned them out. I used a cutoff wheel that was about the width of the clutch head opening and cut in line with the length of the clutch head depression. (clear?) the freeze off is a CRC product. the same guys that produce brake cleaner. found at part stores and some Wal-Mart stores. it contains penetrant and CO2 spray the fastener ,insert the driver and tap with a hammer. Try to turn it, if the head strips....get the die grinder out I have a 42 1/2 ton short bed. it's down to the frame now. I'm working on rebuilding the suspension and of course driveline bearings and seals. this is my first attempt at a torque tube rebuild so I'll be seeking advice from my fellow bolters. Mark
________________________________ From: Tom Johnston <john...@whidbey.net> To: old-chevy-truck@yahoogroups.com Sent: Thursday, June 13, 2013 6:43 PM Subject: [old-chevy-truck] clutch-head screw removal Thanks Mark I'll try that. What is CRC freeze off? What size die grinder bit did you use? I was about to apply heat directly to the screw head. I doubt that will loosen the screw but it might anneal the steel to make it softer and easier to drill. Tom What 42' do you have? I have a 41' 1/2, a 42 3/4, and a 46 3/4. Tom, I just went through the same thing with my 42. I found cutting a slot in the head with a die grinder and using a big slotted screw driver and plenty of penetrating oil and or CRC' s freeze off worked about the best be patient Mark ________________________________ From: Tom Johnston <mailto:johnstn%40whidbey.net> To: mailto:old-chevy-truck%40yahoogroups.com Sent: Thursday, June 13, 2013 6:03 PM Subject: [old-chevy-truck] clutch-head screw removal HI Dismanteling interior of 46' pickup interior. Some of you have been there. Have worked all day and have 7 screws our and three with ruined heads (cammed out) which I can't get out. The problem is rust. I am using a fresh clutch head bit in a 1/4 inch drive ratchet. I don't have enough power in my hands to use a straight driver. I douse each screw several times with Kroil penitrant. I take it slow and use as much downward pressure as I can. Some are so frozen that either the bit starts to twist or the bit cams out ruining the screw head. I tried Alden Grabit bolt and damage screw extractors to no avail. I tried drilling but the screw head is really, really hard. I dull a fresh HSS drill in about 20 seconds. Should I buy a left hand drill? A carbide drill? Should I use heat on the screw head? Should I take a die grinder and carbide bit and grind off the head and hopefully deal with the remaining stub somehow? Has anyone here been there - done that? Tom [Non-text portions of this message have been removed] ------------------------------------ Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: mailto:old-chevy-truck-unsubscribe%40yahoogroups.comYahoo! Groups Links ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3345 / Virus Database: 3199/6407 - Release Date: 06/13/13 [Non-text portions of this message have been removed] ------------------------------------ Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscribe@yahoogroups.comYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) <*> To change settings via email: old-chevy-truck-dig...@yahoogroups.com old-chevy-truck-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
