MF285 Hole behind liner?

IFF · Dec 11, 2016

As I pulled the #4 cylinder liner on my 285 last night I noticed residual coolant in the block dripping from the cylinder. There is a hole in the block that appears to be from corrosion. I was not loosing coolant while using the tractor. I am doing a rebuild due to low compression. I am pretty sure the block cannot be saved but there are a lot of you out there that know more than me. Is there anything I can do to save the block?

On a side note, I rigged up a puller using a bottle jack that worked excellent. Didn't take more than an hour to pull all four liners. A 1 1/4" pipe flange fits perfectly as a puck.

Doug
(IFF)

Dieseltech · Dec 11, 2016

Had a Perkins 354 block like that years ago, split about two inch long on five and six, through both sleeve and block. Machine shop bored the block for a repair sleeve, then bored the sleeve to accept the cylinder sleeve, and the flange also. Worked fine after that.

IFF · Dec 11, 2016

It is low in the cylinder bore, just and inch or so up from the bottom. I was wondering if something like Loctite 640 sealer would work when installing the new liner.

IFF

DavidP, South Wales · Dec 12, 2016

Hi, have come across this once before in a MF 595 fitted with a Perkins A4.318. The problem was leaking water into the engine oil. There was a hole well down in the number 4 bore (as I recall) about the diameter of a pencil (8-9mm). Contact coolant had eaten its way through the liner and caused the leak. There is only one way to be sure of curing it and that was to fit a new block. Only the genuine replacement was available in the 80s but non-genuine ones should be available now.

DavidP, South Wales

ptfarmer · Dec 12, 2016

How big is the hole? if its not too big you could possibly drill, and tap the hole (short drill bit with a angle drill, and short tap). Locktite a set screw in place, grind off some of the set screw that sticks out, and its fixed. A machine shop should be able to do it.

IFF · Dec 13, 2016

The hole is not too big, about the size of the tip of a pen. It is a steady drip. I consulted with a local Massey Ferguson factory trained mechanic who said he has ran into this issue a number of times in the past. His remedy was to fill the pit with Devcon and re-sleeve. Apparently there have been no issues in the 10 times he has done this. It sounds too good to be true but he knows his stuff and is widely respected. I wanted to get a reality check from you folks out there. Thank you for your input.

IFF

ptfarmer · Dec 13, 2016

It should be able to be fixed like your local dealer mechanic suggested. Since his fix works I would do it as he suggested, I guess what he is doing is he has a sleeve ready to go in, putting the Devcon in the hole (maybe even push some through the hole), then puts the sleeve in before the Devcon sets up.

MF285 Hole behind liner?

IFF

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Dieseltech

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IFF

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DavidP, South Wales

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ptfarmer

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IFF

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ptfarmer

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