Stripped Thread Repair in TO20 Hydraulic Pump

JoeLaFrank · Jan 27, 2017

Need advice on repair of stripped threads (9/16-18 ) for the safety valve in the aluminum block of the hydraulic pump on a 1948 Harry Ferguson TO20. Anyone ever successfully made a repair and if so how? I was thinking of trying a Time-Sert insert due to the thinner wall of this insert. I only have about 1/5 in to outer wall on one side. But local tractor dealer told me no threaded insert would work. I don't understand why when the safety valve screwed into the aluminum threads.

jasinpa · Jan 27, 2017

never had to fix one of them , but i can tell you that time-sert makes a very good insert, have a couple of them kits myself , i
think it would be the best bet. make sure you locktite it in with red or green locker & dont get any in the pump . hopefully the
alum. is of good quality or it my not tap out well but what do you have to loose at this point .

JoeLaFrank · Jan 27, 2017

Thanks for answering. I'm also considering EZ-Lok which would be much cheaper as they don't require a special tool. Specs indicate they are designed for weaker metals like aluminum.

Steve@Advance · Jan 27, 2017

That's going to get really thin with a TimeSert.

There are some Helicoil taps and inserts on Ebay.

Brendon Warren · Jan 28, 2017

I'd ask on the Ferguson forum. I'd bet someone has an old pump
that you could put your parts in.

Stripped Thread Repair in TO20 Hydraulic Pump

JoeLaFrank

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jasinpa

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JoeLaFrank

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Steve@Advance

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Brendon Warren

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