Problem with Massey 1433

Jim Wolf · May 5, 2015

I got this tractor new and have had it about 10 years. I am generally happy with it. BUT the bolts where the frame is connected to the engine block keep coming loose. I have had the dealer put red locktite on them but this did not help. I have two questions. Is this a known problem with these tractors and does anyone have a solution other then constant checking?
Thanks.
Jim Wolf

GVSII · May 5, 2015

If the red loctite is the right grade and not out dated and the threads are good all around it should hold.If the problem persists you may have to drill the bolt heads and go with safety wire.

JMS/.MN · May 5, 2015

A spot of weld after torquing?

Steve@Advance · May 5, 2015

It can happen to any of them. Likely the bolts were left loose from the factory. The problem wasn't discovered until they had worked and wallowed the holes, the flatness of the sheetmatal, and the flatness of the engine bosses. At this point not a really practical way fix it other than pull the engine, weld pads on the frame, machine the bosses on the engine flat again.

First though I would try cleaning the holes with carb spray, get some grade 8 bolts or 10.9 if metric, some grade 8 flat washers. If you can, grind off any burs or protruding areas to let the engine sit as flat as possible.

Then red loctite everything, tighten as tight as you dare without stripping or splitting the bosses.

Spook · May 5, 2015

(quoted from post at 11:56:29 05/05/15) I got this tractor new and have had it about 10 years. I am generally happy with it. BUT the bolts where the frame is connected to the engine block keep coming loose. I have had the dealer put red locktite on them but this did not help. I have two questions. Is this a known problem with these tractors and does anyone have a solution other then constant checking?
Thanks.
Jim Wolf

I'd post this question over at Tractorbynet .com. More stuff on modern tractors there.

RCP · May 5, 2015

I would suggest using grade 8 or 10.9 studs, hardened washers and nuts. Clean the threaded holes with ether, use red Loctite on the studs and run them to the bottom of the holes. Use as many washers as you can fit and then torque the nuts to the manufacturers recommendation plus 10%. This has worked for me on problem joints in the past.

Rich

Brendon-KS · May 5, 2015

I'd agree - add as much spacer as you have room for and use longer bolts. Plenty of shank length to allow for bolt stretch is always a benefit for keeping hardware torqued.

Jim Wolf · May 6, 2015

Thanks.

"may have to drill the bolt heads and go with safety wire."
Can you say more about this. What is safety wire and how do I use it?

"Plenty of shank length to allow for bolt stretch is always a benefit for keeping hardware torqued."
I don't follow this.

Jim

caterpillar guy · May 7, 2015

I have never had a bolt that was big enough for the job come loose. I would guess they are not big enough to do the job.

showcrop · May 7, 2015

I agree with being sure that the holes are clean. I had a situation on an implement a few years ago where bolts holding a replaced frame part kept loosening. I kept tightening, and then hung a 7/8" wrench on the implement and tightened every time I hooked onto it. Finally after about six tightening so it got tight enough to stay tight. Safety wire won't help in this situation. it will keep a loose bolt in place but won't keep it from backing off just enough to allow the hole to get wallowed.

Problem with Massey 1433

Jim Wolf

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GVSII

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JMS/.MN

Well-known Member

Steve@Advance

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Spook

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RCP

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Brendon-KS

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Jim Wolf

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caterpillar guy

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showcrop

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