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Massey Harris & Massey Ferguson Tractors Discussion Forum
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135 Diesel Pump RR

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Flyguy

02-01-2007 19:30:27




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As soon as the weather warms up here in Ohio I need to remove the injector pump and injectors on my 135 and send them out for overhaul. This is on a Perkins AD3-152 three cylinder, CAV pump. Lots of experence with gasoline ignition systems but this will be my first time pulling an injector pump. Any tips or tricks to get it back on and timed properly? I do have the IT manual but it doesn't say much about it. Anybody know of a good shop to send it to? I'm in southern ohio midway between Dayton and Cincinnati. Thanks in advance.

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arfaname

03-13-2007 03:46:16




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
what is it that makes you think the injector pump is the problem? I have exactly the same problem with my mf40 with the same engine.

regards

Sean



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Flyguy

02-03-2007 16:51:17




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
Thanks guys for the replys. It sounds easy enough to do once it warms up here. What it's doing is this: the engine starts instantly even when it's been sitting for weeks and is cold. Idles fair but lots of times it's VERY slow to accelerate. From idle to about 1200RPM it takes a very long time then from 1200 or so it takes right off. Sometimes when mowing and under increasing load the engine will bog down, sometimes the governor catches it, most times it doesn't and I have to disengage the clutch to keep it from stalling. A new transfer pump has been installed and is working good, all filters are clean, no air leaks that I know of in the system. No excessive smoke. The engine is in otherwise excellent condition, uses no oil. I've had the tractor for 7 years now and it ran just fine until the middle of last summer. The tractor has right at 5000 hours on it and as far as I know neither the pump or injectors have been touched.

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Dean

02-02-2007 16:48:35




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
FlyGuy:

The others have given you good instructions as to how to remove and reinstall your pump.

The major injection service shop in Cincinnati is Diesel Injection Service on Reading Road. They are expensive but do good work. You can Google them up.

Dean



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TomTX

02-02-2007 06:00:46




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
Would be interested in what is suspected wrong with the pump? Tom



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master tech01

02-02-2007 01:32:58




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
A hooter girl can do this one...shut off your fuel (shut offis at the bottem of the tank)Remove all of your lines on the pump.don't be concerned about the inj lines they can only go on one way.disconnect linkage.thier is a small cover directly in front the pump ,remove it behind it thier is three bolts 5/16 takes 1/2 socket.(don't drop them) then remove the three bolts that mount the pump(thier is A scribe mark on the pump and the several on the front cover (be sure they get put back exactly the way it came off) thier is A pin that matches the gear to the pump you can't mess it up. the gear can not jump a tooth even though it will be loose in the cover. but thier is no need to set the engine on t.d.c Massey F:has admitted that when the front covers were made that the marks on the cover were not always right thier is a tool (that no one has) that lines up the pump to the to the cover in the front.and it is A good posibility that the local dealer my not even know about unless they have been M.F training schools but if you reinstall it the way it came off you will be fine. one other thing you can do is buy A diesel timeing light (about 500$)If you are like me and want it exactly right P.S are you sure thier is a failure in the pump?

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richard in nz

02-02-2007 01:29:19




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 Re: 135 Diesel Pump RR in reply to Flyguy, 02-01-2007 19:30:27  
Identify and remove the pipe work from the pump, a photo may help you for reassembly. Remove the throttle and stop contols. Remove the circular plate from the front of the timing cover directly in front of the pump, remove the 3 bolts 1/2" socket size. Look at the pump flange where it bolts on to the timing cover, near the securing nut nearest you there should be a scibe line and another on the timing cover that are normally lined up, if they dont or there are no marks put your own on with a sciber or dot punch. Remove the 3 nuts holding the pump to the timing cover and lift the pump away, seal the open ports. Ensure you make it so nobody can turn the engine over with the starter, the timing gear cannot come out of mesh and you will see that the gear has a peg which goes in a corrisponding hole in thepump drive so you cannot mis-time the pump. When refitting put the peg in the hole and line up the scribe marks or the marks you made when you removed the pump, it will be timed to the engine exactly as before.

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