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Wisconsin T-Head Restoration Log


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Old 11-24-2010, 01:59:20 PM
tharper tharper is offline
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Photo Wisconsin T-Head Restoration Log

Thought I would start a log showing my progress in bringing this big beast to life again. Or more apropriatly my painfully slow progess.

Just a bit of background: My engine is a Wisconsin Model PT circa 1926. (s/n 1145) It was original equipment in a 10 ton Lombard Model N Tractor built in Waterville, ME. (Unfortunatly I don't have the tractor to go with it!)

Specs are as follows:

6 Cylinder (cast in pairs)

5-3/4" bore x 7" stroke

1091 CID. (17.9 Liters)

4 Main bearings (2-5/8")

4 bolt rods

bronze backed babbit bearings

100% Full pressure lubrication (the oil pump is actually two seperate pumps in one - Service & Scavange. A full length baffle-plate seperates the crankshaft from the oil pan)

How many of these engines Wisconsin produced is not known. It was eventually replaced by the Model D which still featured cylinders cast in pairs but was an overhead valve design.

Anyway, I aquired it in November of 2007 and have been working off and on since. This engine last ran in 1933 and was abandoned in northern Maine. All the bronze fittings were removed many years ago with not much regard to damage inflicted to the rest of the engine.

So with that said here is progress to date:

As found - note the slinky springs!


Thankfully it wasn't stuck after 74 years
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Old 11-24-2010, 02:07:27 PM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

The valves were bent so they could remove the bronze lifter guides
I had to cut them to get them out. They are 2-5/8"dia. 1/2" stem and 8" long



This is one of the 12 lifters and guides. Two survived and the others were aquired with the engine (thankgoodness!) I had to make two new lifters to replace a couple that were beyound salvage.



These are the new valve guides. We machined these from gray cast iron
They are 4 inches long. The old guides were well worn and broken when the valves were bent. The originals were cast as one piece but we made ours two piece - the large boss was turned seperate and press fit against a shoulder.

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Old 11-24-2010, 02:12:29 PM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

Like I said earlier - all the bronze fittings were salvaged many years ago in a most brutal fashion. Here is the smashed oil pump drive housing - it runs off the exhaust cam. Next to it is the pattern and corebox for a replacement.


Here is what it will look like when finished
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Old 11-24-2010, 02:17:45 PM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

The valve stems were enclosed in two piece alluminum shrouds. Like everything else these went missing a long time ago. Thankfully Don (the gentleman I aquired the engine from)
had a pattern and corebox fabricated and had cast a bunch of them. I have 10 pairs and will need to cast only two more.




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Old 11-24-2010, 02:31:10 PM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

The crankcase is a 500 lb manganese bronze casting.

Why it didn't get melted down is speculation. But I suspect the remote location (Churchill Lake now part of the Allagash Widerness Waterway) It took a heck of a lot of scrubbing to get it nice and shiney!

I apologize for the poor photo.




Here is the oil pump ready for installation. Fortunatly the 6 bronze impellers were ok.



More photos to follow as progress inches forward

Best regards,

Terry
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Old 11-24-2010, 05:22:20 PM
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Default Re: Wisconsin T-Head Restoration Log

Thanks for starting this build log, I will be following along. Perhaps I will pick up some pointers on how to fabricate lost or broken parts.

-Steve
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Old 11-24-2010, 06:33:54 PM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

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Thanks for starting this build log, I will be following along. Perhaps I will pick up some pointers on how to fabricate lost or broken parts.
Thanks Steve,

Iam learning a lot of new things too as this moves forward. Pattern making, machine work etc. Isn't that what hobbies are for? (LOL)

Heres a good great site to learn about casting, pattern making etc.

http://www.backyardmetalcasting.com/

Checkout the Forum. Lots of good stuff!

The next few month's Iam devoting to making my patterns and core boxes - then come warmer weather I can start casting. This weekend I will be starting the patterns for the intake manifold and hopefully make some progress on getting the new valves machined.

Here are a few more photo's:

My engine did have a starter. It was a big Leece-Neville as seen in the photo below. This one is mounted on a 4 cylinder Wisconsin setup for marine use.Needless to say if you have one kicking around let me know!




This is the governor. Its a unit made by Pharo. to date I have not come across another like it. This, like just about everything else with this engine , needs work and will need a new casting to replace the broken resevoir. I keep telling myself its worth all the effort because its a real cool engine!



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Old 01-11-2016, 11:04:58 AM
OldJalopy OldJalopy is offline
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Default Re: Wisconsin T-Head Restoration Log

Quote:
Originally Posted by tharper View Post
The valve stems were enclosed in two piece alluminum shrouds. Like everything else these went missing a long time ago. Thankfully Don (the gentleman I aquired the engine from)
had a pattern and corebox fabricated and had cast a bunch of them. I have 10 pairs and will need to cast only two more.




Hello; Some low-life stole the valve covers off my Wisconsin 4 cyl: Have you had your covers cast and if so can you tell me who did it and cost? Thank you.

ron
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Old 12-16-2010, 11:40:13 PM
Enar Drugge Enar Drugge is offline
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Thumbs up Re: Wisconsin T-Head Restoration Log

Gee, I have been on Churchill Lake several times as I canoed the Allagash. I didn't see this engine or I would have put it in my canoe and lugged it home! Are there any engines up by Eagle Lake? I have seen the big locomotives up there, but never spotted a one lunger (or six lunger) that I can recall.
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Old 12-17-2010, 09:19:40 AM
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Default Re: Wisconsin T-Head Restoration Log

Hello Enar,

Yes, there is not much there now. Up-until the early 70's there was still a lot of stuff.

When I first went there in 1974 the tractor shed was till standing and there was a big pile of make & breaks etc. behind the warehouse.

During one of thier "Back-to-Nature" phases, the Department of Conservation burned the tractor shed the following year. Thankfully, a guy operating a skidder was nearby and hauled the last of the Lombard's out before they lit it.

Both are now in a private collection. My engine came from one of them when he replaced it with a complete and running Wisconsin that came from a pumping station.

Unfortunatly a treasure trove of artifacts went up in flame - a boom boat with a big Palmer? (the engine was saved) bataux's, sled runners, and shelves of parts.

Later the state hauled all the old make & breaks away. There was one at Tramway - or I should say the pieces of one. It was a Samson with a beaver logo cast into the hopper. Unfortunatly a few years ago somebody stole the hopper.

Ironicly, now the State is trying to gather artifacts etc. and has developed a small museum. Sort of putting the cart before the horse.

Churchill Depot Tractor shed 1974


Discarded engine - Churchill Depot 1975


Here are some older photos

The engine I have came from this tractor - Churchill Depot 1969


Inside the tractor shed - Churchill Depot 1969
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Old 12-30-2010, 09:47:53 AM
tharper tharper is offline
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Default Re: Wisconsin T-Head Restoration Log

Now that the busy Christmas season is past and the days are short, the snow is deep and its too darn cold outside. I have been spending some evenings in the shop.

After teaching myself how to use a lathe I managed to make the first pattern for the intake manifold. I started with one of the tees.

The big problem was I kept getting mezmorized watching the wood peel away and then before I know it I had turned the piece undersize! I am such an amature....

Anyways like the original, these will be cast in bronze and connected with brass pipe. I turned the core prints to the inside diameter of the pipe. During machining the ends will be counterbored to the outside diameter of the pipe to provide a smooth passage. I could use a stepped core but with the finished wall of the fitting only .125" thick I didn't trust that I could be that accurate with the core placement.

Now its onto the core box.

The finished pattern


The pattern is split to facilitate casting


Here is a sketch of the complete manifold. The pattern above is for the shaded fitting


Best regards,

Terry
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Old 02-01-2011, 08:22:30 PM
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Default Re: Wisconsin T-Head Restoration Log

Thought you might like to hear what my engine will sound like when its finally one.

This is a short clip of my friend Don's 10 ton Lombard Model N tractor. The engine I have came from this tractor. Don had swapped it for a complete and functioning Wisconsin PT. The noise is fantastic! Sorry for the shakey camera work...

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Old 02-01-2011, 09:25:43 PM
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Default Re: Wisconsin T-Head Restoration Log

Nice!! Hope yours sounds as good when your done. I've got to admire you and anyone else who goes to such lengths to fabricate and rebuild parts for these engines. By the way,what's up with the track inside the track? Did that do away with the road wheels(guide wheels)? Also is the rear gear the drive gear in the track?

Last edited by MarkBillesbach; 02-01-2011 at 09:36:54 PM.
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Old 02-01-2011, 10:35:51 PM
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Default Re: Wisconsin T-Head Restoration Log

Quote:
what's up with the track inside the track? Did that do away with the road wheels(guide wheels)? Also is the rear gear the drive gear in the track?
Hello Mark,

good question. Lombard used roller chains to tranfer the weight of the tractor to the track. There are 4 chains - 2 per side. With very few exceptions he used this design in one form or another from his very first steam log hauler in 1900 through to the end of production in 1936. It actually proved to be a very durable and smooth system. If operated on snow as most of these tractors were the roller chains could last up to 7800 miles on average.

In answer to the second question - Yes the drive is taken by the rear sprockets.

Here are a couple of his 1917 patent drawings to help explain how it works. Note the patent drawins show the roller chains running around idlers on the sprocket shafts while the chains on the tractor in the video do not. This was a odd variation. We think the purpose was to take some of the stress off of the cross-shafts. However, it meant that wear in the rollers and the runner could not be compensated for.

Lombard did use rollers/idlers on a few tractors including the Model 'T' and the CSS88. Both were meant for use in the construction industry - mud, dirt etc. while the roller chain was used on tractors used in the logging industry - snow & ice







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Old 02-01-2011, 10:43:55 PM
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Default Re: Wisconsin T-Head Restoration Log

Here are a few more photos to illustrate Lombard's unique track system.








This one is pretty cool. Its the remains of a Lombard that was cut in two. Here you can see the runner with the roller chains and track laid-out beneath it.

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