Trucking Factors (Updated with more sweetness and light)

"SilentButNotReallyDeadly...killed by G/O Media" (silentbutnotreallydeadly) 07/30/2019 at 05:00 • Filed to: Tractorlopnik

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This is the diesel injector pump on our Massey Ferguson 65. As you might be able to tell...it is covered in diesel.

The stopper valve in the back left of the rectangular cover is properly leaking (as opposed to merely weeping like other seals on the pump!) and the engine fan is blowing the leaked fuel over the exhaust manifold immediately behind it.

A rebuilt or new pump is somewhere between $800 and $1,100. A seal kit is $50 and the vane pump (right end of the pump) is another $50.

This new shed can not come soon enough. But I have so many other things to do instead of fixing a fu...tractor!!

Update: After watching a hour long video of an expert fully resealing this exact same pump...I bought the kit. And I got it from the guy that did the video as a bit of an anonymous thankyou.

It turned up in the mail this morning. Now the key to this is that Old Mate said that the o-rings that were causing me grief could be replaced without removing the pump from the tractor. All I had to do was remove the top cover. And that looked very doable under our dirt floored lean-to.

And it turned out to be true. However, this was the sort of fiddly tiny spanner work that easily brings out my inner Clarkson. Therefore, I had to pay special attention to maintaining due care and level temperament.

Such diligence paid off. The cover came off easily, I noted which holes the throttle spring was fitted to, I didn’t drop the tiny rivet into the pump body, I didn’t get dirt everywhere, I replaced the o-rings, I replaced the gasket, I lined everything up just so, I bolted it all back together, I bled the air out of the fuel system, I started the tractor, it ran perfectly, I stopped the tractor and it stopped... perfectly. I did a little happy dance and then it began to rain for the first time in nearly a month.

Sweetness and light....

farscythe - makin da cawfee! > SilentButNotReallyDeadly...killed by G/O Media 07/24/2019 at 20:55

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Dya need me to ship you this thingie I found

It was by the side of the road so I think that legally makes it salvage

SilentButNotReallyDeadly...killed by G/O Media > farscythe - makin da cawfee! 07/24/2019 at 21:59

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Hell no!!! Though I appreciate the gesture...

Pat Pfeiffer > farscythe - makin da cawfee! 07/24/2019 at 22:29

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So, I heard of this scam recently where people would see shit in an alley or by the side of a building or what have you... They would make a fake Craigslist ad with a picture of the item being listed for free, so when they got caught taking shit they just showed cops the Craigslist ad 

farscythe - makin da cawfee! > Pat Pfeiffer 07/25/2019 at 02:53

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Lol foo l proof

pip bip - choose Corrour > SilentButNotReallyDeadly...killed by G/O Media 07/30/2019 at 05:11

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well done!

did you get much rain though?

SilentButNotReallyDeadly...killed by G/O Media > pip bip - choose Corrour 07/30/2019 at 05:34

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Thanks.

1 millimetre. It’s shamefully scary how grateful we can be  just for that...it settles the dust if nothing else.

JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t > SilentButNotReallyDeadly...killed by G/O Media 07/30/2019 at 09:14

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Wait, so that has a rotary-distribution pump like a vintage Bosch petrol injection pump? WTF... They build enough pressure with a vane pump for diesel injection? That just seems like its designed to leak... Whats wrong with a piston pump that they decided to go with that design instead... Thats a Perkins engine, isnt it? I thought the Perkins engineers were less.... Um... adventurous than that.

benjrblant > SilentButNotReallyDeadly...killed by G/O Media 07/30/2019 at 13:14

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Agreed! We got just under 20cm of rain for all of last year- it was rough. Wildfires and dust everywhere.

SilentButNotReallyDeadly...killed by G/O Media > JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t 07/30/2019 at 18:44

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Yes... indeed it does. The MF65 came with two diesel engines in its short run in the early 1960s . Both Perkins and both pretty much using the same 203.5 cubic inch block. Only difference is that the earlier version (4A-203) used indirect injection while the later AD4-203 had direct injection. And this engine carried over into the MF165.

This tractor has the direct injection motor.

Both motors appear to have used the same rotary injection pump, made by C.A.V. The injectors are also by CAV. According to the specs...the four hole nozzles (0.24 mm apertures) in this tractor should open at 2,500 psi. That’s not insignificant!

I also bought a spare vane pump when i got the seal kit but haven’t fitted it. It’s a very simple thing...

The thing is though...very little of the fuel system is at pressure. Only once the diesel gets past the vane pump on the far right end does any real pressure build on the seals. The fuel under the top cover is under little more than gravity (actually it may even be negative as the dead o-rings allowed air into the system). The main concern going forward is the primary drive shaft seal on the engine end of the pump. If this goes the diesel will simply drain into the engine sump!!

When the shed is done and I get a chance I will overhaul the tractor as much as possible (especially the steering) and redo the seals in the rest of the pump...

SilentButNotReallyDeadly...killed by G/O Media > benjrblant 07/30/2019 at 18:55

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This area is supposed to get between 700 and 800 mm rain a year. The last two years have been in the mid 300s. That is unprecedented - never happened in almost 100 years of records and this year might be three in a row . We haven’t had median rain since 2012...and yet, on the upside, we still aren’t the most hard hit part of the country.