Hydraulic adapter plates - 65 and 165

sdsherer · Feb 7, 2016

Hi, folks. I just picked up an old front end loader for my 165 that I'm starting to install. I was pleased to see that it came with the front auxiliary pump and adapter plate. Unfortunately, the pump came off a 65 (3-hole plate) and mine's a 165 (4-hole plate). So, I have a question about where to go from here. Can I drill out the 3-hole plate in the 4-hole pattern and use the available bushings (Part No: 1400022M91) to finish the job? Or, is there anyone out there with a 4-hole plate that would trade for my 3-hole plate? The 4-hole plate tends to be more pricey, but we could make it right. Thanks.

Rkh · Feb 8, 2016

I added a loader to my 65, but couldnt add a front pump because the steering tie rods get in the way of the
shaft, so check your steering linkage to see if you can do this. I ended up with a pto pump.

Bob N.Y. · Feb 9, 2016

One plate is for the Continental gas engine and the other is for the Perkins diesel. Can't remember which is which. It's been about 45 years since I got into that.

Bob N.Y. · Feb 9, 2016

You must have an early 65. The solution for your problem is to replace the arms on top of the spindles with the later style which are shorter. Then the center arm doesn't have to move as far to steer the tractor. We learned that the hard way.

Bob N.Y. · Feb 9, 2016

The steering linkage is NOT a problem on a 165.

Rkh · Feb 9, 2016

Where do i find these shorter arms? Does that mean your turning radius is shorter?

Bob N.Y. · Feb 9, 2016

Considering the age of these tractors, the best bet is probably used parts. It doesn't change the steering radius but does make the ratio quicker.

ptfarmer · Feb 9, 2016

I think the 3 bolt adaptor plate can be made into 4 hole plate. Another way would be to take the crank pulley off, then drill, and tap it to take the 4 bolt plate. I've never ran across a 4 bolt plate, but I would imagine the bolt circle would be the same. It's not something I would try to do on a drill press.

ptfarmer · Feb 9, 2016

I mean drill, and the pulley to take a 3 bolt plate.

sdsherer · Feb 12, 2016

(quoted from post at 22:19:20 02/09/16) I mean drill, and the pulley to take a 3 bolt plate.

Bob N.Y. is right - the steering linkage is not a problem on the 165.

ptfarmer - As for the adapter plate, the 4-hole plate is part number 708639M1 and seems to be widely available online and is the one called for on the 165. I never thought of drilling and tapping the pulley to take the 3-hole adapter. I know new parts for old tractors can be expensive, but the cheapest I can find for this plate is around $115 with shipping. Wish I could find a used one out there. Any ideas for where there might be a 165 being parted out or a used parts house?

As for making a 4-hole out of the 3-hole plate, it appears to be hardened steel and my local machine shop would be more expensive than buying new. I don't have bits to do the job.

ptfarmer · Feb 13, 2016

A 3 bolt adaptor plate seems to be about $30.00 cheaper than a 4 bolt (I paid $80.00 for a new 3 bolt, the 4 bolt is around $110.00). The cheapest way would be to take the pulley off, then drill, and tap it for a 4 bolt. But it may not be the easiest way depending on how much room is in-front of the pulley. I put a new 3 bolt pulley on my 135 because the old pulley was different, and couldn't be drilled. I had to block the tractor up, take the hood/grill off, and move the front axle support forwards to change it. A new pulley cost about the same as the adaptor plate

Bob NY · Feb 13, 2016

Is your tractor gas or diesel? The difference in the pulley is not a difference between the 65 and 165. It is the difference between the gas and diesel engines.

ptfarmer · Feb 13, 2016

Perkins offers a 3 bolt, and 4 bolt pulley for the diesel.

sdsherer · Feb 14, 2016

Mine's diesel. Thought it was a 65 vs. 165 difference, but gas vs. diesel makes sense. I just ordered a 4-bolt. Thanks.

ptfarmer · Feb 14, 2016

The 65 didn't come from the factory with the FEL on it so whoever put it on there either had to put a different pulley on it, or used the pulley it had on it. A lot of tractors without a FEL usually comes with a pulley that can't be drilled for the adaptor plate.

Hydraulic adapter plates - 65 and 165

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