Allis Chalmers 170 and 175

[ArlyA]

My boss just pick up a bunch of used tractors which he will be selling. These two Allis's have around 3000 hours on them, the 170 is gas and 175 diesel. I was thinking offer to buy the 170 for him. What is your thoughts? Stupid idea?

 

[Paystar]

Grab them both now!!

 

[Paystar]

Just check where the valve stem is in the rear rims and make sure they are not starting to rot. The rear rims are about the most expensive pieces you would ever have to replace on those tractors.

 

[LittleBittyBigJohn]

My in-laws have a 170 that looks pretty similar to that one but with a Perkins diesel. I bush hog 40 acres a time or 2 a year with it. Does a good job. The high-low range selector makes it work a lot like a live PTO. The foot clutch disengages the PTO and transmission but the brush hog will still drive the transmission through inertia so you may not come to a stop as soon as you would like. N on the hand selector lets the PTO still be powered and disengages the transmission. Breaks may or may not work well going forward and work a lot less in reverse since they are band brakes. You will have a bit of trouble fitting it down your trails . It's a big heavy tractor, I like it.

 

[ArlyA]

Yes the Perkins was the diesel option. I thought tractor data said the PTO was live?

 

[tacticalturnip]

It's the best bad idea you've had in a long time.

 

[LittleBittyBigJohn]

It's entirely possible that there could be something wrong with his, but my experience is that the foot clutch disengages both the transmission and PTO from being driven by the engine but the transmission and PTO are still mated together. Meaning the PTO and tires are either both spinning or neither spinning. The bush hog inertia absolutely drives the wheels of the tractor with the foot clutch pushed in.

But, like I had said earlier, the hand clutch/ range selector does let the PTO remain driven while clutching the transmission, and the bush hog does not push the tractor around. Maybe that is why it's listed as live on Tractor Data? It's actually a pretty good setup that woks well. I usually use 3rd gear to cut. In the thick stuff or for turns I use low range and lighter stuff or open areas I slide it into high which I think is called 5th. The range selector/ hand clutch can be operated on the fly and you can feather it just like a foot clutch. So you can ease up to something at a snails pace then add pressure up to the range selector's detent to speed on up to the full gear speed.

 

[ArlyA]

He wants 6500 and 7500 for them.

 

[Harry in Ky]

My boss just pick up a bunch of used tractors which he will be selling. These two Allis's have around 3000 hours on them, the 170 is gas and 175 diesel. I was thinking offer to buy the 170 for him. What is your thoughts? Stupid idea? View attachment 822336View attachment 822337

He wants 6500 and 7500 for them.

Just opinion here, but the Perkins 236 is hands down a better engine than the gas AC motor. Unless there's major problems with the 175, I'd seriously try to go that way.

 

[LouNY]

It's entirely possible that there could be something wrong with his, but my experience is that the foot clutch disengages both the transmission and PTO from being driven by the engine but the transmission and PTO are still mated together. Meaning the PTO and tires are either both spinning or neither spinning. The bush hog inertia absolutely drives the wheels of the tractor with the foot clutch pushed in.

But, like I had said earlier, the hand clutch/ range selector does let the PTO remain driven while clutching the transmission, and the bush hog does not push the tractor around. Maybe that is why it's listed as live on Tractor Data? It's actually a pretty good setup that woks well. I usually use 3rd gear to cut. In the thick stuff or for turns I use low range and lighter stuff or open areas I slide it into high which I think is called 5th. The range selector/ hand clutch can be operated on the fly and you can feather it just like a foot clutch. So you can ease up to something at a snails pace then add pressure up to the range selector's detent to speed on up to the full gear speed.

Yep, correct it is a live pto but the "Power Director" makes it similar to an independent pto.
It functions similar to the older Allis with a hand clutch as well as a foot clutch.
The foot clutch stops the tractor drive and the pto drive but inertia can keep things moving, while the hand clutch or Power Director would allow the tractor to stop with the pto still delivering power.

 

[Paystar]

He wants 6500 and 7500 for them.

There are no 175 diesels listed on Machinery Pete, but 3 170's and they range from $5900 to one that doesn't look any nicer than the ones you showed Arly and they want $12,500 for it.

I also like to use Mecum Gone Farming auctions web site and see what auction prices ranged over the years.

 

[ArlyA]

Just to be clear, with a live PTO, when you push the clutch in to shift gears, the PTO stops? I thought "live" meant it kept going.

 

[Paystar]

One thing I should have added. If you register and use Mecum's site to search past sale prices on tractors, it gives you as good "real" value before all these covid pricing dreamers came into the picture.

Today people tend to pic the highest sale price they have ever seen on a museum piece and that is what theirs is worth, even if it has no wheels and doesn't run, LOL

 

[LouNY]

Some "live" pto tractors have a two stage clutch, where the first stage is the pto and then using more pedal gets the drive clutch.

From tractor data.com;

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Power Take-Off (PTO) Types​

There are three basic types of PTO control on a farm tractor:
Transmission
The simpliest, and earliest, form of PTO is the transmissionPTO. The PTO shaft is directly connected to the tractor's transmission.The PTO is only working when the tractor's clutch is relased, so if you take the tractor out of gear while slowingdown the PTO will stop working. This is a disadvantage in applicationssuch as mowing.

An overrunning clutch is often needed with a transmission PTO.Without it, the driven equipment (such as mower blades) will put aforce on the PTO shaft, and then the transmssion, due to inertia. The equipmentwill "drive" the tractor, and you will still move after using the tractor's transmission clutch. An overrunning clutch prevents this fromhappening by allowing the PTO shaft to freely spin in one direction. In more recent models, this is built into the tractor. Inolder tractors, it is an extra piece of equipment mounted on the PTOshaft.
Live (two-stage clutch)
A live PTO works with the use of a two-stageclutch. Pressing the clutch half-way will disengage the transmissionwhile pressing it fully will disengage the transmission and the PTO.This allows the operator to slow down or change gears while the PTO isstill operating.
Independent
An independent PTO means that the PTO shaft iscontrolled with a separate clutch. As with a live PTO, this allows forfull control over the tractor while separately controlling the PTO.There are two major types of independent PTO; mechanical andhydraulic. A mechanical-independent PTO uses a separate on-offselector, in addition to the PTO control lever. Often the tractor mustbe stopped or off to change this selector position. Ahydraulic-independent PTO uses a single selector.

©2000-2023 - TractorData.com®. Notice: Every attempt is made to ensure the data listedis accurate. However, differences between sources, incomplete listings,errors, and data entry mistakes do occur. Consult officialliterature from the manufacturer before attempting any service or repair.

 

[ArlyA]

Is anyone here using a Allis Chalmers 170 gas?

 

[LouNY]

Not in many years!!

 

[Paystar]

Is anyone here using a Allis Chalmers 170 gas?

Have you been here Arly?

AllisChalmers Forum

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www.allischalmers.com

 

[ArlyA]

Have you been here Arly?

AllisChalmers Forum

This is a forum powered by Web Wiz Forums. To find out about Web Wiz Forums, go to www.WebWizForums.com

www.allischalmers.com

No, seems I belong to to many forums... But i will check it out. I also need to convince the spoucal unit.

 

[Paystar]

No, seems I belong to to many forums... But i will check it out. I also need to convince the spoucal unit.

Lots of Allis knowledge there. And sources for parts.

JUST DO IT!! That's what I do, LOL