I was being nice to my 1969 135 by changing a fuel filter that I am sure has not been changed in 5yrs by the previous owner. I am now bleeding the system and can get fuel to bleed from the two spots on the injector pump but cannot seem to get fuel to the injectors. I have the fuel shut off valve on the injector pump in the open position. I am really at a loss. And yes it was running fine before I changed the filter. Help!!
Make: massy fergerson
Engine: perkins diesel
Hello and welcome to Just Answer,
If you have fuel at the pump fitting then just go to the next connection point in the fuel line and crack it open and then crank it over until you get fuel out of it. Once you have fuel there then move on to the next one and so on. I normally crack open all of the fuel lines at the injectors as well.
Thats the problem I can get fuel to all points except the injectors. I have removed the line from the pump that leads to the injectors and there is no fuel coming from there. It is as if the fuel is shut off at the kill valve. No matter how long I pump there is no fuel. I even ran the engine on a low mist of starter fluid for close to 2 minutes. There is no fuel at the cracked front injector. All was running fine when I shut it off to change the filter. (something I'm starting to think I will never do again!) No dirt or water entered the system.
You still have air in it. Crack the outlet line on the pump and see if you get fuel out of the injection pump. Crack the inlet line at the fuel valve and make sure you get fuel to there. Do the same on the other side of the valve. Let me know.
1/.change filters, and open bleeders on filters,2/.turn fuel on and start priming (yes 2 people will be MUCH easier)3/.keep pumping until a good stream of fuel comes out the bleeder. then pump for a bit more to make shure there is no air still coming through.4/. tighten filter bleeders and open lower one on injector pump. more pumping.5/ now do the same for the top bleeder on the pump.6/. now crack all the injector lined half a turn. open the throttle fully.7/. crank the engine over until all the injector lines have fuel spraying out from around the nut. 8/. tighten injector nuts and follow normal starting procedure, but still use some throttle until the engine starts and picks up revs, then shut the throttle back to about 1/2. if it still wont start, recheck all bleeders for air, then try tightening the injector nuts while the engine is being cranked.you really need to use a bit of throttle to give the pump enough cpacity to push any remaining air through the injector. also have a set of jumper leads handy, because now is when you will find out how good the battery is. never crank the starter for more than about 10 seconds without letting it cool either.
Ok, Back out at the tractor and started bleeding from scratch AGAIN. When bleeding the injector pump with the manual lever on the fuel pump I have fuel squirting out every time I pump. When I bleed with the starter turning the motor over every third squirt is air. Squirt, squirt, air, squirt, squirt, air. Do I continue to turn the motor untill it squirts everytime? I have run turned it a total of 2 or 3 minutes. What gives with that? Also have you worked on the perikins in the 135 or are you converting large diesel experience to what should be happening in the perkins?
I have worked on a friend of mines massey 399 and changed the filters on it. It should be the same setup. If you are still getting air then keep bleeding it until the air is out. The lift pump does not create as much pressure when priming by hand and that is why when you crank it with the starter it still have air in it.
Next question. I cannot get to the large nuts on the fuel lines going into the bottom of the injectors. I can only get one small turn on the front one of them. Is cracking the nuts on the top of the injectors going to accomplish the same thing? Feel as if I'm making some progress
The large nut should be the return lines. I would crack open any line you can to help get the air out of the system.
ok the large nuts to the injectors come right from the injector pump. The small line and nuts on the top return to the fuel tank. Will it be able to bleed thru the return line or do I have to figure out a way to get the large nuts at the injectors loose. And no offense to your help but is there some one there who has actually worked on the 135 so he has an idea of what things look like?
Sorry about that. That large nuts are the feed lines. The small ones are the return lines.
Now to the rest of the question... do I have to loosen the large nuts or can it bleed out thru the return line? Also if you were working on this engine and it would not get fuel to the injectors after 6 days of bleeding and re-bleeding what would your next step be? There is fuel at the injector pump but none coming out of the pump to the injector lines. It seems to me if the pump were faulty I would still be able to manually pump fuel to the injectors
Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help. Yes, I have worked on the Perkins engine in the Massey. I owned one too. You can not bleed the injectors through the return line. You have to loosen the lines at the injector pressure lines. One thing that you do need to do, is verify that the kill lever is actually in the open position. The cable can slip or the lever can come loose and the internal shaft will still be in the stop position. That said, if you can't get fuel to come out the injector lines, the internal linkage in the pump can be stuck in the no fuel position. There is no direct link inside, it only works off a spring. If the internal linkage doesn't move when the lever is moved, it is still in the no fuel position. The cover of the injection pump can be removed and the lever can be moved manually. If it comes to that, be sure and clean the upper cover and get it as clean as you can before removal. Let me know. Thank you.
Thanks. It seems like that is the problem. I loosen the nuts where they come out of the injector pump and I am getting no fuel there. Have a Dr. appt will try it when I get home.
My Massey manual gives no breakdown of he injection pump. Be looking for a light spring when you remove the cover. It may or may not be attached to the cover.
OK It is attached to the cover but I was ready for anything to happen. Springs flyin everywhere etc. Checked to make sure everything moved and then put it back on. Cracked the nuts to the injectors after grinding down an old wrench to make things fit. Got fuel at the injectors for the first time. It actually started!! YEAH!!! Now the injector covor leaks a little bit so will have to solve that. The other thing is it's billowing blue smoke. Ran it for about 2 minutes but is still blowing blue. Checked the nuts and they are tight. Could I have messed up the rings when I ran the light mist of starting fluid to try to get things moving earlier? Considering marvel mystery oil or something along that line. Whats your opinion other then I'm an idiot for the starter fluid?
The old engines don't take well to starting fluid, but I would give it a while and put some hours on it before you declare it dead. I love marvel mystery oil, its good for everything! You could have hurt the engine, but it will take some time to tell. Glad you got it running. You didn't add oil to the diesel did you? Would make it smoke for awhile till all the oil gets through. Have a good day. Thanks!!
YOU MEAN IT'S NOT A TWO STROKE!! ;) Its not dead just smokes ALOT Seemed to be turning more black towards the end. Thanks for your help. I know this is a seperate question so you don't have to answer. The 135 says Multi-power on it but doesnt have the lever. Did they put that on all tractors even if they didnt have it?
Thanks again for your help
It think that was an option, not on all units.
30 years exp. with diesel engines, heavy equipment and forklifts, including lp forklifts
Thanks Curtis, You have no idea how tired I was getting of being told I still had air in the lines!!
Your welcome, its nice to work with you. Thanks again!