rockepg

Member
Hey guys, question. I am trying to install the stand pipe on my 135. Is there a trick to getting it into the pump side without destroying the special washer? The o-ring doesn't want to compress enough to get into the hole. Even if i take the washer off and leave just the o-ring it still doesn't want to go in there without a few taps from a hammer. It's a new pump if it matters. Cap side it will slide in with a little wiggle no problem.
 
Is the O-ring the correct one? (3/8" I.D. x 1/16"diameter) Or you could put the o-ring that won't go into pump into the little top cover first then put the tube into the pump.
 
Hi, to add a little to what PT has said;
Make sure that the bottom end of the pipe is round. Many people use a pliers or grips to remove them and flatten
them slightly as a result. Fitting the pipe into the cap first is a sound idea. Gently 'feel' for the engagement of
the pipe in the pump plate and check that the cap is parallel to the cover surface in both planes. It should require
nothing more than a gentle push with your hand a give a very satisfying clunk. Don't forget to fit the PTFE washers
and small O ring between the cap and cover.

DavidP, South Wales.
 
I'd also check that the bore in the pump has been chamfered adequately.
Is it a genuine or aftermarket pump?
Maybe worth a look as I've seen this before......and had the same trouble.
 
The o-rings are genuine massey parts and the correct number based on what is in the book. So i assume they are the correct size. I did fit one end into the cap and it fit nicely with a little wiggling to seat it. Took that end and tried to put it in the pump and would not go. Wiggled, twisted etc and just would not go. Cut the o-ring and broke the washer in the process too. Good thing i was smart enough to get an extra set.
It's an aftermarket pump i got from YT. Sparex i think was the brand. I did notice the hole in the pump does not seem chamfered at all and is kinda sharp. Of course i notice this after its all back together :/
Think i need to take the top cover back off and chamfer the hole a little?
 
(quoted from post at 07:32:11 11/29/16) I did fit one end into the cap and it fit nicely with a little wiggling to seat it. Took that end and tried to put it in the pump and would not go.

I should clarify this a little. The o-ring and washer were fitted on the pipe when i tested the fit in the cap. Did fit nicely so i assume the o-ring is the right size as top and bottom use the same one.
 
That's a problem with a lot of aftermarket parts is that they don't make all the parts like MF did. You have the O-rings so chamfering the hole should do the trick.
 
Ok looks like weather will cooperate tomorrow. Will pull the cover back off and see about chamfering it. Have had other issues fitting this pump too. PTO shaft didn't want to line up nor did the PTO gear. Had to loosen the side pins and move it around until things lined up and tighten the pins down again. Also had to use the old shaft coupler as the new one just would not fit the transmission shaft at all. Is what it is i guess.
 
Ok so got the pipe in there. Tried one last thing before pulling the cover. Left the pipe assembly in the house over night so it was good and warm. Put some assembly lube on the O-ring and washer. With a little wiggling it went right in :)
Tried the cap method with no rings on top. The cap was flat on the cover while the washer was still sitting above the pump. But it is in the pump now and cap is installed with both O-rings and washer just fine. Will fill it up tomorrow and do the final two adjustments. Hopefully i don't get fluid shooting out all over lol..
Question on that though.. The pump sync procedure says to install the tool on the dashpot for this. Is the idea to keep the plunger pinned out like during the linkage adjustment process? Also i don't have an 800lb weight to put on the back for the adjustment. I only have a partially broken drag blade. Is it really going to matter?
 
Yes on the wedge for the dashpot, the MF shop manual calls for 850 lbs of weight. It would be better if you put something on the arms that weighs around 800 lbs. One time I backed up a 1/2 ton pickup behind the tractor so the lift arms would lift the truck by the back bumper, it kind of worked out ok, but not as good as putting a known amount of weight on it.
 

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