Ford 1500/1700 injector pump

[drakefamily2]

I also have one of the pumps with no plugs. Have always wondered how to do maint. but didn't have a clue. After finding your web site finally decided to give it a try. Loosened bolts on end plate and pried the bottom open, just a few dribbles of very thin looking oil came out, maybe a half ounce. retightend plate bolts and added 2 ounces of oil. started up and checked for leaks, looked fine, thanks a lot guys.

 

[JC-jetro]

I also have one of the pumps with no plugs. Have always wondered how to do maint. but didn't have a clue. After finding your web site finally decided to give it a try. Loosened bolts on end plate and pried the bottom open, just a few dribbles of very thin looking oil came out, maybe a half ounce. retightend plate bolts and added 2 ounces of oil. started up and checked for leaks, looked fine, thanks a lot guys.

cool Glad you were able to sort out information needed out of 1700 related archives.

JC,


ps. Welcome to TBN Blue

 

[RobertBrown]

I notice that I had exactly the same Diesel kiki pump on an Iseki I sold a few years back. Great little tractor, just too hard to get parts for.
Anyway, my pump had drain and fill ports. It was specified to hold 4 oz of oil. If you read the thread you will find that everytime I changed the oil it was thin, depleated, and smelled bad, although the pump was working fine. The conclusion was the fuel lubricated the pump.
This pump was for a 2 cylinder Isuzu.
http://www.tractorbynet.com/forums/iseki/63097-injector-pump.html#post704702

I think this underscores the importance of using offroad or avoiding lowsulfur diesel fuel in older tractors as it could ruin your injector pump.
I did look into a rebuild for this pump and if I remember corectly it would cost about 300$ with shipping.

 

[JC-jetro]

I notice that I had exactly the same Diesel kiki pump on an Iseki I sold a few years back. Great little tractor, just too hard to get parts for.
Anyway, my pump had drain and fill ports. It was specified to hold 4 oz of oil. If you read the thread you will find that everytime I changed the oil it was thin, depleated, and smelled bad, although the pump was working fine. The conclusion was the fuel lubricated the pump.
This pump was for a 2 cylinder Isuzu.
http://www.tractorbynet.com/forums/iseki/63097-injector-pump.html#post704702

I think this underscores the importance of using offroad or avoiding lowsulfur diesel fuel in older tractors as it could ruin your injector pump.
I did look into a rebuild for this pump and if I remember corectly it would cost about 300$ with shipping.

2 oz is exactly what I get when I drained my injector pump on several occasions. I do fill it up to overflow hole in the middle. Good point about the less lubricity of low sulfur diesel. I do use power service additive to the tune of 2 oz per 5 gallons to help it out.

JC,

 

[drakefamily2]

If anybody needs a pump there is one on Ebay now for $495. Item 110721690113

 

[teachag]

I too have one of the plug-less pumps. I stumbled on this thread when I was trying to figure it out. I called my local New Holland/Ford dealership and talked to the service manager. He said he would look into it and sent me the following email.

Good afternoon, The 1700 Ford tractors that were produced after 12/1980 did not all have the drain plug on them,and there can be a few before 1980 as there is no clear date of production change. The pumps without a drain plug are lubricated by the engine oil (pressure) and do not require the oil to be replaced as it is continualy circulated by the engine oil pressure.

I am not sure that I totally trust it, but there it is for what it is worth I am currently trying to decide if I just go with it or if I try to change the oil.:confused3:

 

[old1500]

I don't trust it. I know the only way oil can get into and out of my pump is either by accident, or if I change it. I do not see and cannot find any path for the engine oil to get into or out of the pump. I drilled-n-tapped both the fill and drain-plug bosses and installed pipe plugs. It may very well lubricate itself buy magic, but it does not hurt to drain it and change it either.....can't hurt anything. If it's somehow true that the pump oil gets to and fro into the crank case....that's okay by me, but I installed the plugs.

 

[JC-jetro]

On this particular injection pump there is no physical evidence that crankcase is lucubrating it and is corroborated with parts diagram in NH website and service manual. I can only see if the pump shaft leaks then there might be some oil drain from the pump (not from crankcase to pump) in to timing gear cover and then getting in to crankcase thru timing gear cover. Drilling and tapping is just fine. One can drain it also by cracking the back plate a bit open to drain, use the fill on top and put 2 oz oil that is recommended.

JC,

 

[JC-jetro]

I admit to being way down on the list of tractor experts and most of what I have learned has been off this forum and the school-of-hard-knocks. I can only say that I have some pictures that came off one of these threads that show the oil seal on the injector pump-shaft where it sticks through the housing. There being no other physical connection between the pump and the motor....oil can't get past that seal.

The pump is bolted to the backside of the timing gear cover and not to the block. Then there is timing gear cover, so if the pump shaft seal leaks then there is the possibility of pump oil to drain in to timing gear cover. The housing that you saw is not part of engine block. go thru the thread and reexamine the pic. I hate to duplicate the pic again. I can do it if you are not convinced enough.

JC,

 

[John85259]

Bringing this back to the top, I have a Ford 1500 tractor with the original Diesel Niki fuel injection pump. The original pump is in very poor shape. I took it to a local shop that rebuilds them and they said it needs a lot of parts and would be expensive to rebuild and that I might look around for a used pump. I've found one pump that might work. The number on the pump from my tractor is 4302-657. The number on the used pump that "may" work is 4302-419. Are these two pumps equivalent?

I asked the local rebuilding shop if the used pump (4302-419) is correct for my tractor and he wasn't sure. He said it would fit and the tractor should run, but he didn't know enough about the numbers on these to know if there are any small internal differences between the two pumps. I'm assuming he means that one pump might flow a slightly different amount of fuel or something like that.

I noticed that the 1700 pumps that are shown earlier in this thread have numbers of 104302-4190 and 104302-4191. Unfortunately, I did not see any 1500 pumps with legible numbers.

Any thoughts on whether the used pump would be functionally equivalent to the original pump would be appreciated.

John