my trucks at the shop thay said im looking at $4,000 for a pump and dont have that kind of cash to spend now anybody know ware a cheeper place to get a rebuilt one or has them in stock cheeper the better times are tough
i need a 8.3 cummins injection pump
bayou hotshot
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Thanks for the quick reply!!! The engine was serviced with a new Fleetguard filter before I started the trip. With that said, I've been told there might be another fuel filter (secondary). Do you know if there is one for sure and where would I look for it. I went through my past Cummins service bills and I don't see on any of the bills that a second filter was installed.
My intension is to take the MoHo to a Freightliner dealer in Corpus Christi, TX Cummins recommended, but I'm trying to get all the info I can get, like what you suggested so I can finally get this problem resolved. You've been a big help and the best logical information I've gotten in the last year. I wish Cummins did this work when I was there last year when they discovered the fault code. Instead they said to try the new fuel filter, even after I told them I had this problem right after another Cummins oil and lube service. This time I want to be more informed and insistent.
If you have any other suggestions, I would be most grateful.
THANKS!!!
I have no way of knowing how many filters are on your unit without looking at it.
Generally there is 1 filter before the gear pump and 1 filter after the gear pump stage of the injection.
It would be pretty simple to trace the fuel lines and find the second filter, so I'm not sure why Cummins couldn't do so.
Generally there is 1 filter before the gear pump and 1 filter after the gear pump stage of the injection.
It would be pretty simple to trace the fuel lines and find the second filter, so I'm not sure why Cummins couldn't do so.
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cummins 8.3 caps pump
I rebuild the 8.3 caps pumps all the time. I know they said its unheard of but its not that big a deal.We do hundreds of these pumps every year.
I rebuild the 8.3 caps pumps all the time. I know they said its unheard of but its not that big a deal.We do hundreds of these pumps every year.
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More than likely an hourglassed front coupler
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TC2 - Thanks for all you helpful responses. Can you help with the one I am working on?
A friend of mine has a 2004 Peterbuilt with a Cummins ISC 330 engine in it.
The pump works with no power, starting or fuel consumption problems.
I steam cleaned it for him to identify an oil leak that cost him a ricket.
It appears to be leaking oil from what looks like the seam between the flange section and the first plate on the pump. The oil leak is bad enough were after cleaning and idling for 5 minutes the compressor head below is covered.
Couple of questions:
1. Is this common?
2. Can this be repaired without a total rebuild? The pump was replaced by Cummins only 100K ago!!!!
3. If no on item #2, what would it cost for a rebuilt or repair to this one?
Numbers I took off the pump are:
2906110743
4076442RX
Thanks,
Joe
A friend of mine has a 2004 Peterbuilt with a Cummins ISC 330 engine in it.
The pump works with no power, starting or fuel consumption problems.
I steam cleaned it for him to identify an oil leak that cost him a ricket.
It appears to be leaking oil from what looks like the seam between the flange section and the first plate on the pump. The oil leak is bad enough were after cleaning and idling for 5 minutes the compressor head below is covered.
Couple of questions:
1. Is this common?
2. Can this be repaired without a total rebuild? The pump was replaced by Cummins only 100K ago!!!!
3. If no on item #2, what would it cost for a rebuilt or repair to this one?
Numbers I took off the pump are:
2906110743
4076442RX
Thanks,
Joe
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Pump Q
I checked the part #"''s you posted. This is a CAPS pump if there is no fault codes or power problems this is a cheap fix.I'm not sure what you mean by the first plate and flange. If you could supply a picture or more detail I could assist you further. I can reseal one of these very cheaply If thats all it needs. But I need more info.
I checked the part #"''s you posted. This is a CAPS pump if there is no fault codes or power problems this is a cheap fix.I'm not sure what you mean by the first plate and flange. If you could supply a picture or more detail I could assist you further. I can reseal one of these very cheaply If thats all it needs. But I need more info.
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5 Posts
Also tell him to make sure that his oil level is not raising on the stick wich can cause serious engine damage. Diesel entering engine oil.
please see the attached pic. if the leak is between A & B, it should just be a matter of an o-ring and maybe 5 or so hours of labour.
if the leak is between A & D , it would just be 2 special o-rings and a couple hours of labour... but is usually isn't actually leaking there. It is usually leaking from the back side of the cam housing, from where the dowel pins are pressed in. the dowel pins wear and get jammed in the tappet and finally forced out.
even though bad, it doesn't require the entire pump to be replaced. just the cam housing which probably would be $1000 or less in parts, and as much as 8 hours labour.
if the leak is between A & D , it would just be 2 special o-rings and a couple hours of labour... but is usually isn't actually leaking there. It is usually leaking from the back side of the cam housing, from where the dowel pins are pressed in. the dowel pins wear and get jammed in the tappet and finally forced out.
even though bad, it doesn't require the entire pump to be replaced. just the cam housing which probably would be $1000 or less in parts, and as much as 8 hours labour.
Attachments
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If the leak is between a & d It takes less than one hour to repair and less than $10 in parts. If the leak is between a & b the entire pump must be removed which can be difficult for someone who is not used to removing these pumps.
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183 Posts
Between TC 2 and Cummins Doc...........You guys are performing a great customer service ! It takes time for you to respond to peoples inquiries,usually because they only give you part of the story ,or very sketchy engine information .For example if they quote the HP of an engine [not the model],they could be talking about 3 or 4 different engines . If someone saved me thousands of dollars of cash plus a lot of grief,I'd track them down and donate a healthy Christmas present . Speaking as an EX Detroit Diesel employee ! Thanks again !
I've spent the winter in Mission, TX. On the way down I had the same bucking problem with brand new fuel filter installed by Cummins in San Antonio. It seems to be getting worse especially when going up hill. I have to feather back on the accelerator to ease the bucking. We head home end of this month and I have an appointment with Rush Truck Centers in Pharr, TX that has a Cummins tech there. Have you any experience with this company?
I'm not sure if this reply of "hourglasses front coupler" in in response to my thread regarding to engine bucking. If so what do you mean?
he's talking about an internal injection pump part that is subject to wear.
I suppose it's possible, but it is less likely given the fact that your RV probably doesn't have many hours of run time on the engine.
and no, I haven't heard of that shop, but I've never been south of New York state either
I suppose it's possible, but it is less likely given the fact that your RV probably doesn't have many hours of run time on the engine.
and no, I haven't heard of that shop, but I've never been south of New York state either
Well I'm really getting discouraged!!! This spring I took the MoHo to Rush Trucking in Pharr TX to have a Cummins tech see if he could fix the bucking problem. He said there were no engine faults, but he found water in the fuel separator. However, I drained the fuel filter/separator before I left the RV park to go there. No water. He said he also blew out the fuel line because some times they can get plugged in some of the elbow fittings, etc.he's talking about an internal injection pump part that is subject to wear.
I suppose it's possible, but it is less likely given the fact that your RV probably doesn't have many hours of run time on the engine.
and no, I haven't heard of that shop, but I've never been south of New York state either
I drove from Mission TX to Memphis (970 miles) without one buck. From there it bucked worse then ever "bucking" all the way to Effingham, IL (325 miles). I purchased an extra fuel filter from Rush before I left TX. Installed it at the campground in Effingham. Not one buck for the remainder trip home (300 miles).
I've had the MoHo to three Cummins dealerships and two Cummins techs at other trucking companies. Still have the problem @ $800.00. I have an extended warranty that covers the the injector pump, but that expires next February so I'm scrambling to find the problem.
There is only the one fuel filter.
Sure would like some good advise . . . HELP!
Think I found the problem
Many thanks for all your help!
I think I found the problem. I took the Moho to a Freightliner service center and after running about 5 hours a testing, they felt it was the lift pump. They installed a new on and I asked for the old pump. When I got home I look in the inlet and found about a thimble full of rubber pieces. When I drove home I had no issues at any speed. They checked for a pre-filter and there is not one, but that makes sense because why would there be any bubbler pieces in the inlet. So my question is, do you know of a pre filter screen part that has 50 to 100 micron I can install before the lift pump?
Many thanks for all your help!
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1,227 Posts
NAPA has many remote fuel filter housings and filters that can be mounted in line between tank and fuel pump, bolted anywhere you can find a suitable location. Can get with or without water seperator/drain. The housings/filters are towards the back of there filter cataloge. The cataloge will have the micron and flow rating of the filter. I have larger ones (One inch ports) mounted on my bulk tanks to pre filter fuel as its pumped into vehicles.
http://www.davco.com/pdf/parts/3105.pdf
http://www.davco.com/pdf/sales/F5118-FP382.pdf
I like these. The most coarse filter available is 50 micron.
http://www.davco.com/pdf/sales/F5118-FP382.pdf
I like these. The most coarse filter available is 50 micron.
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