cedwards Posted Saturday at 08:24 PM Share Posted Saturday at 08:24 PM I've got an e7 350 all mechanical. Took my Bosch injection pump to get rebuilt and it needs plungers and barrels. No one has them as they've been obsolete for awhile. There are still so many of these pumps still in service it's hard to believe there are no options. I'm down to the point of swapping engines out of another truck I have so I can get back to work. What is everyone doing when your pump finally gives up? Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/ Share on other sites More sharing options...
glenbjackson Posted Saturday at 08:43 PM Share Posted Saturday at 08:43 PM could you or a machine shop make them? a small lathe?? i was wondering samething when i goto fix my old pumps and getting parts. Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570953 Share on other sites More sharing options...
880joe Posted Saturday at 11:00 PM Share Posted Saturday at 11:00 PM I thought that the Heinz posted not to long ago that you could still get them from Mack Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570960 Share on other sites More sharing options...
mechohaulic Posted Saturday at 11:50 PM Share Posted Saturday at 11:50 PM I'm assuming Robert ; Not American bosch pump ?? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570965 Share on other sites More sharing options...
cedwards Posted yesterday at 12:13 AM Author Share Posted yesterday at 12:13 AM Says bosch on the tag. Mack number is 313gc 5212p14x Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570970 Share on other sites More sharing options...
fjh Posted yesterday at 12:33 AM Share Posted yesterday at 12:33 AM Is the pump shop a Bosch dealer!? Is it vmac? Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570977 Share on other sites More sharing options...
Joseph Cummings Posted yesterday at 12:38 AM Share Posted yesterday at 12:38 AM Pump should be a Robert Bosch 6P7321. I think you need to find a real pump shop Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570978 Share on other sites More sharing options...
cedwards Posted yesterday at 12:56 AM Author Share Posted yesterday at 12:56 AM 22 minutes ago, fjh said: Is the pump shop a Bosch dealer!? Is it vmac? Not a vmack. They are a bosch dealer. Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570979 Share on other sites More sharing options...
cedwards Posted yesterday at 01:00 AM Author Share Posted yesterday at 01:00 AM Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-570980 Share on other sites More sharing options...
Joseph Cummings Posted 10 hours ago Share Posted 10 hours ago That's the tag on the governor. Do you have the numbers off the side of the pump? Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571011 Share on other sites More sharing options...
cedwards Posted 9 hours ago Author Share Posted 9 hours ago 59 minutes ago, Joseph Cummings said: That's the tag on the governor. Do you have the numbers off the side of the pump? I'll get it from the pump shop in the morning Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571015 Share on other sites More sharing options...
AZB755V8 Posted 8 hours ago Share Posted 8 hours ago 21 hours ago, cedwards said: I've got an e7 350 all mechanical. Took my Bosch injection pump to get rebuilt and it needs plungers and barrels. No one has them as they've been obsolete for awhile. There are still so many of these pumps still in service it's hard to believe there are no options. I'm down to the point of swapping engines out of another truck I have so I can get back to work. What is everyone doing when your pump finally gives up? You are not looking in the right places. I had a few pumps in a Bosch shop several years ago. P3000 & P7100's to have governor and flow calibrations. There were on the shelf for years and wanted them set for a project engine. Fact is there was One Guy in the whole shop that could work on them and limited at that. No Spec's on any of them being all mechanical. I had to tell him the settings I wanted. Of course "Well that seems off" Well then tell me were the settings should be, OK I'll set them to your numbers. Said don't worry about it took the pumps and sent them to Fair Valley Performance in Wisconsin, 608-643-0200. They do AG, Pulling, Truck injection. P3000 & P7100 pumps are their specialty. For stock to full-on smokers. They had everything to rebuild these pumps and more. Send your pump there, almost sure it will come back with new plungers, if bad at a reasonable price and work ready. Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571018 Share on other sites More sharing options...
Joseph Cummings Posted 8 hours ago Share Posted 8 hours ago I'm kinda curious. What was the reason for having it rebuilt? Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571019 Share on other sites More sharing options...
cedwards Posted 4 hours ago Author Share Posted 4 hours ago 3 hours ago, Joseph Cummings said: I'm kinda curious. What was the reason for having This truck has a well service unit built on it, so it spends most its time revving up and down all day everyday. Engine has 35,000 hours and doesn't use any oil between changes. This pump was obviously a mack reman and not original. Over months it has slowly been getting worse about dieing when you let the throttle off. Then hard restart. Once it ran 4 hours there was no keeping it going the rest of the day. It would also idle up, not sound right, inconsistent speed, etc. I replaced all fuel lines, transfer pump, overflow valve and put a clear line with gauge between outlet on transfer pump and inlet on last filter. No air and 38 psi or higher at all times yet die and hard start.i set timing which was 1 degree off on truck and pulled injection pump. The shop I took it to tells me it's got out of spec sticky wore out plungers and barrels. I've wasted a week being down while they tell me they are looking for parts but unable to find. I'm a diy kind of person and I work on lots of my own large equipment this is the first time in 13 years that I've had a problem with this truck and my first time pulling the pump on a mack. Tomorrow I will get the tag from the pump shop and call some of the places suggested. If I find someone who can fix it I'll go pick it up and ship it. This truck is my only income, it's been a tough 4 years. I need to get back to work and if I have to I have an electronic mack I can swap motors to get it done but would much rather just fix my injection pump. I appreciate the help and any suggestions on places to call. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571025 Share on other sites More sharing options...
Joseph Cummings Posted 1 hour ago Share Posted 1 hour ago It really sounds more like a problem in the governor and not something in the pump. The plungers and barrels might be worn, but I don't think that was what was causing your problem. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75259-obsolete-plunger-and-barrel/#findComment-571029 Share on other sites More sharing options...
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