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Broken rocker shaft #1268760 07/16/12 02:41 PM 07/16/12 02:41 PM
Joined: Jul 2006 Posts: 395 campbell river B.C M mopartoby OP enthusiast
mopartoby OP enthusiast M Joined: Jul 2006 Posts: 395 campbell river B.C	Im running b1ba heads with comp stainless rockers and hardened shafts. A year ago the centre shaft bolt broke, i lost my lash and messed up a couple adjusters and push rods. Skip forward a year and i decide to put it back together. When i took the shaft off i never dissassembled it. I just layed it in my valve cover. So i pull it out change 2 adjusters put the new push rods in and when i went to lay my shaft and rockers on i notice my shaft bolts are not in line!!! Uh oh!! It looked like my shaft was twisted. I gave it a twist and i now have 4 paired rockers! I'm far away from coil bind, so what caused this? Its a comp solid roller .686 lift with matched springs do you think my shafts arent up to the high spring pressures?

Re: Broken rocker shaft [Re: mopartoby] #1268761 07/16/12 05:43 PM 07/16/12 05:43 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Shaft is probably bent, when you broke the center bolt it bent

Re: Broken rocker shaft [Re: mopartoby] #1268762 07/16/12 06:50 PM 07/16/12 06:50 PM
Joined: Jan 2003 Posts: 75,094 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,094 A Banana Republic near you.	Quote: Im running b1ba heads with comp stainless rockers and hardened shafts. A year ago the centre shaft bolt broke, i lost my lash and messed up a couple adjusters and push rods. Skip forward a year and i decide to put it back together. When i took the shaft off i never dissassembled it. I just layed it in my valve cover. So i pull it out change 2 adjusters put the new push rods in and when i went to lay my shaft and rockers on i notice my shaft bolts are not in line!!! Uh oh!! It looked like my shaft was twisted. I gave it a twist and i now have 4 paired rockers! I'm far away from coil bind, so what caused this? Its a comp solid roller .686 lift with matched springs do you think my shafts arent up to the high spring pressures? what are your spring pressures and are those comp rockers bushed ? Depending on the pressure the rockers may not be up to the task either .

Re: Broken rocker shaft [Re: mopartoby] #1268763 07/16/12 08:39 PM 07/16/12 08:39 PM
Joined: Oct 2004 Posts: 354 Livonia Michigan 440dart enthusiast
440dart enthusiast Joined: Oct 2004 Posts: 354 Livonia Michigan	Quote: Im running b1ba heads with comp stainless rockers and hardened shafts. A year ago the centre shaft bolt broke, i lost my lash and messed up a couple adjusters and push rods. Skip forward a year and i decide to put it back together. When i took the shaft off i never dissassembled it. I just layed it in my valve cover. So i pull it out change 2 adjusters put the new push rods in and when i went to lay my shaft and rockers on i notice my shaft bolts are not in line!!! Uh oh!! It looked like my shaft was twisted. I gave it a twist and i now have 4 paired rockers! I'm far away from coil bind, so what caused this? Its a comp solid roller .686 lift with matched springs do you think my shafts arent up to the high spring pressures? I run BS-B1 heads, and I had one of the hold down bolts back out, and the shaft broke right where the bolt goes through. Yes I live in Michigan, so there is still 1 light on

Re: Broken rocker shaft [Re: 440dart] #1268764 07/16/12 08:43 PM 07/16/12 08:43 PM
Joined: Dec 2006 Posts: 3,667 Arizona C Chris'sBarracuda master
Chris'sBarracuda master C Joined: Dec 2006 Posts: 3,667 Arizona	Quote: Quote: Im running b1ba heads with comp stainless rockers and hardened shafts. A year ago the centre shaft bolt broke, i lost my lash and messed up a couple adjusters and push rods. Skip forward a year and i decide to put it back together. When i took the shaft off i never dissassembled it. I just layed it in my valve cover. So i pull it out change 2 adjusters put the new push rods in and when i went to lay my shaft and rockers on i notice my shaft bolts are not in line!!! Uh oh!! It looked like my shaft was twisted. I gave it a twist and i now have 4 paired rockers! I'm far away from coil bind, so what caused this? Its a comp solid roller .686 lift with matched springs do you think my shafts arent up to the high spring pressures? I run BS-B1 heads, and I had one of the hold down bolts back out, and the shaft broke right where the bolt goes through. You can run the shaft broken.. Done it many times.. My spare shaft is broken.. It can't move if the bolt/stud is tight.. Chris..

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