Im currently finishing a restoration on my 3010 diesel. I was installing the injection pump today according to the manual. The issue im having is with the engine at 10° btdc i drop the pump in and in order to get the timing window lined up on the pump, I have to turn it all the way until im out of adjustment and the lines dont quite line up. They are very close but not perfect. I had the pump tested but to my knowledge it wasn't taken apart. The oil pump is installed correctly with a 15° off set. Also it is a 3010 pump. Not sure if it has ever had any work done to it though.
matthies
Well-known Member
- Location
- Stanton Nebraska
NO.
3010 pumps originally had no built in timing advance. The instructions in the John deere service Manuel are for timing that pump. All replacement pumps for the past 50 years have a built in advance and are timed differently. The static timing instructions were included with the updated pump. I don't recall what the timing they call for is. I'm sure someone will chime in with the correct timing answer.
Fixingfarmer
Well-known Member
So I’ve had the pump shaft fall out of a 500b pump which should be the exact same as a 3010/20
if you pull the shaft out the bottom and rotate 180 then reinstall it your line likely should line back up like it’s supposed to. I didn’t know that until it happened to me on accident
It likely shouldn’t be all the way at an end of an adjustment slot
if you pull the shaft out the bottom and rotate 180 then reinstall it your line likely should line back up like it’s supposed to. I didn’t know that until it happened to me on accident
It likely shouldn’t be all the way at an end of an adjustment slot
How would I know if I have an updated replacement pump? The identification tag on it is stamped with the correct john deere part number for a 3010
It's highly unlikely that you have the original pump on your 3010. In the 50 years I've been dealing with these tractors I've only seen one original pump. I think your timing should be around 4 degrees advance, but I'm not sure.
Generally speaking, any of those RoosaMaster/Stanadyne injection pumps are timed correctly near the center of the adjustment slots, NOT extreme one way or the other. There seems to be some confusion as to whether you have an original pump or an updated pump. Had you checked the actual pump timing before you disassembled the engine, you what know at what number it was timed at. If I saw your pump from 50 feet away I could tell you if it had a "timing advance" feature (updated pump) or not. I hope you don't have the oil pan on yet, as I feel you need to change the oil pump one tooth.
I did look at timing before disassembly. Unfortunately did not write it down and cant remember for certain. It was months ago. Also the pump drive slot is at the 15° angle the book calls for. Moving it one tooth would move it way to far
I have 3 diesel 3010s. 1 has the updated pump and 2 have original. I have an picture of an original. Basically round with a rectangle on the side to the rear of the tractor. Updated pump has an extra round bump on the front side of the pump. I had similar trouble setting a pump once. Took several rotations of the engine to get the slack just right. The pump can only go in one way . So as long as the V on the gear in the engine housing is close to the 11 o'clock position you should be there. It always depends on the angle you look at the timing mark on the flywheel versus the reference mark on the block it can look different.
Attachments
Dieseltech
Well-known Member
- Location
- Akron, Indiana
Pump suffix AF on the tag is original, AJ is the updated speed advance pump. 3010 AF is 10 BTDC, AJ is 4 degrees BTDC. The 4010 AF is 14 BTDC and AJ is 8 degrees BTDC.
I worked on a 4010 and my flywheel had marks for the pump with the advance that someone had stamped
Dieseltech
Well-known Member
- Location
- Akron, Indiana
Pump is the updated one WITH speed advance.
Post 15 says my pump is updated with speed advance. I was just asking for my own knowledge how he can tell
used red MN
Well-known Member
- Location
- Coon Rapids, MN
The part circled in the photo. Look at craigco’s pump in reply 11, it doesn’t have that.
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