kelmack Posted March 31, 2009 Share Posted March 31, 2009 i am having a camshaft repaced in a ch 2001 after reading a few posts i was just wondering if mack was coming to the party in replacing them as it sounds like a common problem the motor is a etech470 mack estimate $8000 for the job Quote Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/ Share on other sites More sharing options...
mackdaddy1911a1 Posted March 31, 2009 Share Posted March 31, 2009 KELMACK I HAD A CAM PUT INTO MY 01 CX-613 VISION ALSO BACK IN 07. They told me I need to have an overhead run every 100,000 miles however alot of others on here recommend every 50,000. It cost me 6400.00 for the cam bearing kit, new bolts in the exhaust manifold and to have the heads pressure checked and have all the freeze plugs replaced. Warnig make sure they DO NOT REUSE THE BOLTS FOR THE HARMONIC BALANCER/MAIN CRANK PULLEY. A week after I got the truck back the harmonic balancer broke all the bolts and fell off. Now the dealer paid to have me towed and for all parts and labor....GOD BLESS MACK TRUCKS AND NEXTRANS of Birmingham, AL. . However it shouldn't have been necessary.By the way double check that they tighten every thing back and didn't leave any bolts out . I had one bolt missing on an A/C bracket and the air cleaner mount was loose as well as 2 or 3 hose clamps. Good luck. P.S. my truck has a 427 E-TECH ECONODYNE. 1 Quote THE GREATEST NAME IN TRUCKS MACK TRUCKS Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32867 Share on other sites More sharing options...
rw613 Posted March 31, 2009 Share Posted March 31, 2009 KELMACK I HAD A CAM PUT INTO MY 01 CX-613 VISION ALSO BACK IN 07. They told me I need to have an overhead run every 100,000 miles however alot of others on here recommend every 50,000. It cost me 6400.00 for the cam bearing kit, new bolts in the exhaust manifold and to have the heads pressure checked and have all the freeze plugs replaced. Warnig make sure they DO NOT REUSE THE BOLTS FOR THE HARMONIC BALANCER/MAIN CRANK PULLEY. A week after I got the truck back the harmonic balancer broke all the bolts and fell off. Now the dealer paid to have me towed and for all parts and labor....GOD BLESS MACK TRUCKS AND NEXTRANS of Birmingham, AL. . However it shouldn't have been necessary.By the way double check that they tighten every thing back and didn't leave any bolts out . I had one bolt missing on an A/C bracket and the air cleaner mount was loose as well as 2 or 3 hose clamps. Good luck. P.S. my truck has a 427 E-TECH ECONODYNE.I WOULD SUGGEST PUTTING A NEW BALANCER ON THE TRUCK THEY ARE NOT THAT HIGH THEY ARE ONLY GOOD FOR ABOUT 500,000 THE SHOP MAN WILL TELL YOU HES NEVER HEARD OF SUCH THING BUT YOU WILL NOTICE A DIFFERNCE IN THE SMOOTHNESS OF THE ENGINE AND IT WONT BE AS HARD ON YOUR CLUTH Quote Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32892 Share on other sites More sharing options...
Rob Posted March 31, 2009 Share Posted March 31, 2009 I WOULD SUGGEST PUTTING A NEW BALANCER ON THE TRUCK THEY ARE NOT THAT HIGH THEY ARE ONLY GOOD FOR ABOUT 500,000 THE SHOP MAN WILL TELL YOU HES NEVER HEARD OF SUCH THING BUT YOU WILL NOTICE A DIFFERNCE IN THE SMOOTHNESS OF THE ENGINE AND IT WONT BE AS HARD ON YOUR CLUTHAre the harmonic balancers on these engines a silicone filled type, or just rubber internally? I ask because Detroit Diesel 12V engines have a silicone filled balancer that requires testing/replacement at overhaul time for the same basic reasons you mention.Thanks,Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32893 Share on other sites More sharing options...
Mackpro Posted March 31, 2009 Share Posted March 31, 2009 I WOULD SUGGEST PUTTING A NEW BALANCER ON THE TRUCK THEY ARE NOT THAT HIGH THEY ARE ONLY GOOD FOR ABOUT 500,000 THE SHOP MAN WILL TELL YOU HES NEVER HEARD OF SUCH THING BUT YOU WILL NOTICE A DIFFERNCE IN THE SMOOTHNESS OF THE ENGINE AND IT WONT BE AS HARD ON YOUR CLUTHA Big +1 on that. A new damper will help to keep 3-4 and 3-2 timing fault codes from happening. The newer dampers are also bigger in diameter and will fit all ETECHS style engines 1999 and up. Quote Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32894 Share on other sites More sharing options...
Mackpro Posted March 31, 2009 Share Posted March 31, 2009 KELMACK I HAD A CAM PUT INTO MY 01 CX-613 VISION ALSO BACK IN 07. They told me I need to have an overhead run every 100,000 miles however alot of others on here recommend every 50,000. It cost me 6400.00 for the cam bearing kit, new bolts in the exhaust manifold and to have the heads pressure checked and have all the freeze plugs replaced. Warnig make sure they DO NOT REUSE THE BOLTS FOR THE HARMONIC BALANCER/MAIN CRANK PULLEY. A week after I got the truck back the harmonic balancer broke all the bolts and fell off. Now the dealer paid to have me towed and for all parts and labor....GOD BLESS MACK TRUCKS AND NEXTRANS of Birmingham, AL. . However it shouldn't have been necessary.By the way double check that they tighten every thing back and didn't leave any bolts out . I had one bolt missing on an A/C bracket and the air cleaner mount was loose as well as 2 or 3 hose clamps. Good luck. P.S. my truck has a 427 E-TECH ECONODYNE.The torque on thoses damper bolts are only 45 lbs. Most techs just stick an impact gun on them and over torque them and then they fail. We have done it here more than once. Now everyone here knows the correct torque. Quote Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32895 Share on other sites More sharing options...
mackdaddy1911a1 Posted April 1, 2009 Share Posted April 1, 2009 The torque on thoses damper bolts are only 45 lbs. Most techs just stick an impact gun on them and over torque them and then they fail. We have done it here more than once. Now everyone here knows the correct torque.Thanx MACKPRO68 Like I said they stood behind their warranty and behind MACK's reputation. That made me a customer for life. Quote THE GREATEST NAME IN TRUCKS MACK TRUCKS Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32911 Share on other sites More sharing options...
mackdaddy1911a1 Posted April 1, 2009 Share Posted April 1, 2009 Thanx to everyone for the info to me and KELMAK concerning the balancer. I appreciate it very much. Quote THE GREATEST NAME IN TRUCKS MACK TRUCKS Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32913 Share on other sites More sharing options...
kelmack Posted April 1, 2009 Author Share Posted April 1, 2009 i picked up my truck today you guys were spot on about the balancer they say they have never heard of it beforethe truck was finished when i rang so i will do it myselfyou were also right about loose things a bolt missing of a cover plate on motorexhaust clamp on turbo not done uphorton fan air line not connectedand charged me extra $3300 to fix a few broken bolts in radiatorother than that it seems to be good Quote Link to comment https://www.bigmacktrucks.com/topic/8848-camshaft-failure-on-a-etech470/#findComment-32936 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.