Was not sure where to post this but as it was in a Grove Rough Terrain guess this will do!
Last year was involved in this crane when came to our plant with engine problem. I told them I thought there was some internal problems the way this Detroit sounded. I have overhauled everything from 3-53's to 16V-71's since back in the early 1970's but management now want to farm out most engine work. Outside contractors came in and partially disassembled the 6V-53 in this crane and as I suspected it had one or more bent rods from coolant getting in cylinder from cracked head and or leaking injector tubes. Another branch of our company was allowed to rebuild the engine and after a minor problem with oil pump installation error seemed to run great. Well a few weeks ago I was told the engine was trashed!:eek: Then I w as told the guy who had rebuilt it messed up big time and it had mismatched rods and other unexplained problems. Asked if machine was being scrapped, no the outside contractor that had helped remove and re-install it last summer was fixing it. This contractor is one I have lots of faith in, owner is a guy I have know since mid to late 1990's. I was hoping to have a chance to talk to him about it next time I saw him. Well today was my lucky day. I was at a sister plant to work on a D6D Cat and just as I got there this guy was coming down the driveway going the other way. He stopped to say Hi. So I asked him what's the story on that crane engine? He told me that the story about it was last fall where ever it was the "operator" was trying to get it to start and kept putting the starting fluid to it with no luck. They said it had lots of fuel but would not start<?>. Then early this year the contractor was asked to look at it, after it still not starting with lots of starting fluid! Right off he finds the emergency shutdown flapper was tripped!:Banghead That corrected it did start but did not run right. While disassembling he found water in exhaust manifold not sure if any was in cylinders as it had finally run. Further disassembling found a couple bent rods. They did replace all six cylinder kits and replaced rods with a couple good used ones. Now I plan to be sure to tell everyone I can that the problem was not the guy who had rebuilt it but having someone who does not know the proper operation of a machine and people too eager to grab the spray bomb starting fluid. If someone who knew even a little about Detroits had been called in at the first sign of the failure to start it would have taken a few seconds to reset the shutdown flapper and it would have been good to go. Instead I would love to know how many thousands the second repair cost and how many times a crane had to be rented while this one was down for repairs that could have been avoided:Pointhead But these days management likes to think they can just ship equipment from place to place and anyone who has a crane licence can run them. Days gone by we had dedicated operators for equipment like this.
Last year was involved in this crane when came to our plant with engine problem. I told them I thought there was some internal problems the way this Detroit sounded. I have overhauled everything from 3-53's to 16V-71's since back in the early 1970's but management now want to farm out most engine work. Outside contractors came in and partially disassembled the 6V-53 in this crane and as I suspected it had one or more bent rods from coolant getting in cylinder from cracked head and or leaking injector tubes. Another branch of our company was allowed to rebuild the engine and after a minor problem with oil pump installation error seemed to run great. Well a few weeks ago I was told the engine was trashed!:eek: Then I w as told the guy who had rebuilt it messed up big time and it had mismatched rods and other unexplained problems. Asked if machine was being scrapped, no the outside contractor that had helped remove and re-install it last summer was fixing it. This contractor is one I have lots of faith in, owner is a guy I have know since mid to late 1990's. I was hoping to have a chance to talk to him about it next time I saw him. Well today was my lucky day. I was at a sister plant to work on a D6D Cat and just as I got there this guy was coming down the driveway going the other way. He stopped to say Hi. So I asked him what's the story on that crane engine? He told me that the story about it was last fall where ever it was the "operator" was trying to get it to start and kept putting the starting fluid to it with no luck. They said it had lots of fuel but would not start<?>. Then early this year the contractor was asked to look at it, after it still not starting with lots of starting fluid! Right off he finds the emergency shutdown flapper was tripped!:Banghead That corrected it did start but did not run right. While disassembling he found water in exhaust manifold not sure if any was in cylinders as it had finally run. Further disassembling found a couple bent rods. They did replace all six cylinder kits and replaced rods with a couple good used ones. Now I plan to be sure to tell everyone I can that the problem was not the guy who had rebuilt it but having someone who does not know the proper operation of a machine and people too eager to grab the spray bomb starting fluid. If someone who knew even a little about Detroits had been called in at the first sign of the failure to start it would have taken a few seconds to reset the shutdown flapper and it would have been good to go. Instead I would love to know how many thousands the second repair cost and how many times a crane had to be rented while this one was down for repairs that could have been avoided:Pointhead But these days management likes to think they can just ship equipment from place to place and anyone who has a crane licence can run them. Days gone by we had dedicated operators for equipment like this.
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