I have a 1980? Yanmar 2002d, it just started blowing white smoke out of the blow by hose which led me to think about checking/cleaning the fuel injectors. Thanks for posting this video, looking forward to seeing what you do with yours.
Matt, on the toothpick idea..I picked up a set of wires, I think from welding tip servicing years ago?? and there are a nice variety of diameters for the hard wires. They work great on other nozzles and very small orifices so I'm thinking I'll try these to clear the holes in the injector. They don't break or bend either! Wouldwork
I appreciate your video, I wish you would do one on how to get them damn things out of the head when it’s off the engine!!! I’ve done the slide hammer with a Pitnum arm puller till my arms are worn out!! Gonna try to find a socket or something to slip over it, find a bolt with the same thread n diameter of the return line banjo bolt but long enough to make it out of the top of the socket, and use it with washers to make my own puller. Wish me luck. Great little video you did here, thanks
I just wiggled them out of the head. I DON'T recommend this, but some guys pull the decompression lever disconnect the fuel lines and and then bump the motor over. They should pop out. I make sure they don't fly out and hit the ground.
Did you happen to come across what the pop pressure was for those injectors? I have three on my tractor and I bought new inserts and needles. One of the three was working properly I believe in popping around 2400 PSI. The other two were just peeing out. After replacing all three inserts, all three of them are popping at a pressure around 1400 PSI. Which I think should be higher but I can't find a spec for it anywhere. They are popping consistently now but I may have to play with them to increase the pressure if I can find it specs anywhere. Thanks a lot.
Yes. I made this video about it: ua-cam.com/video/meM8tGPHqv8/v-deo.html These exact injectors pop at about 2275 PSI or 160 kg sq cm. 1500 PSI is wayyy too low! What tractor model do you have? I have service manuals. I can tell you the opening PSI. You have to get OEM Yanmar shim packs and re-shim them. The paper-thin shims will raise the pressure by 100's of PSI.
I watch your video from pop testing. The Yanmar shims information wasn't in the remarks. But I zoomed in and got the number and ordered a pack. That video helped a lot.
This style injector is not held in by threads but with the hold down bracket. I blow mine off with compressed air then soak overnight in penetrating oil before trying to remove. After removing nuts on the side of hold down bracket and fuel screw on top, use a 17mm open end on top part of injector wiggling sideways back and forth while pulling out with pliers or hand. This should work however as last resort you can throw a heavy cloth or something similar over it and turn the engine over and let the compression blow it out. It can come out with force this way so don’t stand in the line of fire. Also watch out for the washer at bottom of injector. Most of the time they will stay in bottom of injector hole but can stick to bottom of injector when removing and fall off later
That Yanmar Injector looks very much like mine in a 3GM30F. Thank you for confirming the process and assembly.
You're welcome. If the injector looks like this it should be the same.
I got a lil yAnMaR ym 165 bought it for $400 had to clean the injectors this helped me a lot thanks got her going goot
NICE! I need a cheap 4x4 one to play with!
I have a 1977 Yanmar tractor that doesn't look like that, but the injectors do! So, thanks for the video. Yes, I subscribed.
Cool, thanks. I am sure they use these injectors in many different model engines.
I have a 1980? Yanmar 2002d, it just started blowing white smoke out of the blow by hose which led me to think about checking/cleaning the fuel injectors. Thanks for posting this video, looking forward to seeing what you do with yours.
Thanks for the yanmar videos . I have the same motor. Looking forward to the rebuild videos.
You're welcome thanks for watching.
Matt, on the toothpick idea..I picked up a set of wires, I think from welding tip servicing years ago?? and there are a nice variety of diameters for the hard wires. They work great on other nozzles and very small orifices so I'm thinking I'll try these to clear the holes in the injector. They don't break or bend either! Wouldwork
I appreciate your video, I wish you would do one on how to get them damn things out of the head when it’s off the engine!!! I’ve done the slide hammer with a Pitnum arm puller till my arms are worn out!! Gonna try to find a socket or something to slip over it, find a bolt with the same thread n diameter of the return line banjo bolt but long enough to make it out of the top of the socket, and use it with washers to make my own puller. Wish me luck. Great little video you did here, thanks
I just wiggled them out of the head. I DON'T recommend this, but some guys pull the decompression lever disconnect the fuel lines and and then bump the motor over. They should pop out. I make sure they don't fly out and hit the ground.
Did you happen to come across what the pop pressure was for those injectors? I have three on my tractor and I bought new inserts and needles. One of the three was working properly I believe in popping around 2400 PSI. The other two were just peeing out. After replacing all three inserts, all three of them are popping at a pressure around 1400 PSI. Which I think should be higher but I can't find a spec for it anywhere. They are popping consistently now but I may have to play with them to increase the pressure if I can find it specs anywhere. Thanks a lot.
Yes. I made this video about it: ua-cam.com/video/meM8tGPHqv8/v-deo.html
These exact injectors pop at about 2275 PSI or 160 kg sq cm. 1500 PSI is wayyy too low! What tractor model do you have? I have service manuals. I can tell you the opening PSI. You have to get OEM Yanmar shim packs and re-shim them. The paper-thin shims will raise the pressure by 100's of PSI.
@@MattsShop it's a John Deere 850 or I believe otherwise known as the ym2500.
Has the 3t80j engine in the jd850 if that helps.
I found a shim set for a different Yanmar injector. Are they all the same or do I have to order a specific one? Thanks for all your help.
I watch your video from pop testing. The Yanmar shims information wasn't in the remarks. But I zoomed in and got the number and ordered a pack. That video helped a lot.
Thanks!
Welcome!
where did you get the socket organiser you are working on? looks great
It is an older Craftsman socket organizer. It fits regular sockets great, but the thicker black impact sockets don't fit in the holes.
Very cool
It’s the exact one I have to get out of my boat. How did you remove it from the engine block?
You take the clamps off and wiggle it back and forth.
Thanks for the info!!
Any time!
thanks man
Any time
will those injectors work on a 730 case tracktor
No clue. I do know a John Deere 950 is the same engine as this tractor and they will work in that
How did you get the injector out of the tractor?
Unbolted th two bolts on the top plate holding it in, and disconnected the metal fuel line. I just pulled the injector out after that.
This style injector is not held in by threads but with the hold down bracket. I blow mine off with compressed air then soak overnight in penetrating oil before trying to remove. After removing nuts on the side of hold down bracket and fuel screw on top, use a 17mm open end on top part of injector wiggling sideways back and forth while pulling out with pliers or hand. This should work however as last resort you can throw a heavy cloth or something similar over it and turn the engine over and let the compression blow it out. It can come out with force this way so don’t stand in the line of fire. Also watch out for the washer at bottom of injector. Most of the time they will stay in bottom of injector hole but can stick to bottom of injector when removing and fall off later
What do you use to clean them?
Any kind of solvent. Acetone, brake cleaner etc...
Great video!!!! Interesting...are there more videos of this repair ? ... new at this !!!! Thanks .. Tony.....
I have a couple videos out on the tractor right now. Check out my channel for them. I'm about to film the next part taking the engine apart!