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Restoration of Rumely # 6153

Jerred Ruble

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To avoid hijacking the Rumely 36/40 big engine list thread further, I decided to start a separate thread for the restoration of my 36 Rumely. I let you know when I make updates to the restoration pages.

At the moment I am in the process of getting bids on the gearing. I plan to have all new gears cast and machined. I am wondering if any of the other 36 Rumely owners are in need of any gears. If so, now would be the time to get them made. Send me a PM and I can provide the cost estimates as soon as I get them.

Jerred
 

A Martinson

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Last Subscription Date
03/09/2009
Can't wait to see more of your 36, Jerred. This should put me over the top on getting down to Heritage Park for the first time.
 

Brad Hauck

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Last Subscription Date
10/10/2016
Seems like I heard that Larson machine made the extensions for the one at Rolag? Not sure if you want extensions some day, but maybe they still have the pattern for the hub?

Brad Hauck
 

KRHough

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Age
36
Last Subscription Date
01/15/2014
Good evening friends
I finally got around to downloading these photos from my camera. These photos are from a couple of months ago. The collar on the end of the shaft blew the threads off the end of the shaft. Here I remachined the outer pinion gear bearing surface, and undercut the collar diameter and recut the threads. A new collar was machined to match the new threads. I can't wait to see the rest of the engine... Hope everyone is having a great winter.

KR
 

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Jerred Ruble

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We have been making slow but sure progress on the Rumely. I have not taken the time to update the web site lately, but I thought I would post the fact that according to the stamp on the boiler she is 100 years old today. The 36 Rumely restoration crew plan to have a little birthday party for her sometime today as we continue the putting her back into operation condition again.

Jerred
 

Oilpulled

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Last Subscription Date
12/20/2015
Fantastic! Post 5 shows the exact design as used on the very early Oilpulls. I may need to get new threads cut on my E differential shaft too. More details on gear casting and machining, please.
My E Oilpull will have her or his 100th on 4th January 2012.
 

Jerred Ruble

Registered
Sounds good Jason. My wife Eileen and a couple of my junior helps will be picking up the bull, pinion and intermediate gears tomorrow morning from the foundry in Webster, SD. The engine pinion and spiders just were completed as well. Here is a picture of them.

Jerred
 

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Jerred Ruble

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Well it has been some time since I updated the web site, so over the holidays I took some time and made a few updates. The project was on hold for most of 2012, but we got after it again last month and the restoration crew has made a committment to have it up and running for its 102nd birthday which is coming up on 7/11/2013.

Jerred
 

Farquhar

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I like handling the controls of a 36 Rumely-- everything that is except the steering wheel-- someone else can have that "pleasure".
 

AndyG

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Last Subscription Date
01/13/2014
Thanks for the update Jerred. I really like to follow restoration stories.
 

Jerred Ruble

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The engine proper restoration is in full gear. This link shows a video of the center crank is being ground at Crankshaft Supply out of Minneapolis. Lawrence made a fixture on the disc so the shop could turn it. You can see how much it was out of round by looking at the uneveness of the sparks from the grinding wheel at the beginning of the video vs the end. Notice the clearence of the disc from the lathe rail in the attached picture. The shop wasn't totally sure they would be able to do it until they got it centered in the chucks.

The crank will next be taken to a shop in Ames, IA to true up the crank pin.
 

Attachments

Last Subscription Date
11/13/2013
Jerred,
I went into your website and read what you said about the history of this 36 hp Rumely. You mentioned Kevin Small in the Rumely thread and you mentioned me. Referring to what you referred back to me, I'd mentioned that a Hugo Dobler once had a 36 hp Rumely here at Helena. I received my photo of it (which I can't locate anymore), and the rest of his collection when I was an 8th grader (a few years back, by the way). You sparked a memory in this old bald, head! I now remember that Hugo's Rumely didn't have a skid ring on the right front wheel, just as yours didn't. I love keeping track of some of the big old engines that were hauled out of our state and I think I'm keeping track of another, I'd lost track of! Good luck with the restoration!
Gary;)
PS: Tell Eileen hello!
 

GreasyIron

Subscriber
Last Subscription Date
12/28/2019
Great videos! Does that mean it's still on schedule for a July birthday party?

The videos might be giving me an optical illusion, but it's certainly taking a little iron off the bottom of the bore. Perhaps .030"? Was it all circularity & concentricity or was there some pitting to take up too?
 

Jeff Smith

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Last Subscription Date
08/05/2018
GreasyIron,

I took some similar video once on a project and in my case it looked worse than what was being removed.

I always find it interesting how each region of the country has different names for items also, because my dad taught me how to machine a few items, and he called it "Align Boring" on what we were doing and it was similar to what Lawernce was doing, but I typed them both in youtube after watching the videos and it was about a wash on the name and the process.:)
 

GaarScott

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Age
51
Last Subscription Date
05/26/2009
All,

The bore on the left cylinder was the worse of the two. It took nearly .100 to clean the bore up. Since we had to take that much out to clean her up and the bore was slightly larger than what was called out in Rumely literature, it was decided to punch her out to a whole number. So the final bore on both cylinders will be 8" vs. the documented 7-3/4". Rest assured, there was/is plenty of iron left in the cylinder and steam ports.

Due to the hardness of the cylinders, assuming this was caused by the heating and cooling of the cylinder over time, the bores machined quite hard. For the best results and to keep the chattering down I could only take a few thousands at a time. So you can imagine I had to listen to that motor whine for several several hours in the shop. It took a little over an hours' worth of machining time to machine down the bore. Thankfully the engine frame (cross-guide slides) didn't machine nearly as hard and they cleaned up rather nicely too. I won't have to spend too much time cleaning up machining marks on them. The cylinder bores will clean up quite nicely I'm certain with a little honing. That is today's project.

Lawrence
 

GreasyIron

Subscriber
Last Subscription Date
12/28/2019
All,

The bore on the left cylinder was the worse of the two. It took nearly .100 to clean the bore up. Since we had to take that much out to clean her up and the bore was slightly larger than what was called out in Rumely literature, it was decided to punch her out to a whole number. So the final bore on both cylinders will be 8" vs. the documented 7-3/4". Rest assured, there was/is plenty of iron left in the cylinder and steam ports.

Due to the hardness of the cylinders, assuming this was caused by the heating and cooling of the cylinder over time, the bores machined quite hard. For the best results and to keep the chattering down I could only take a few thousands at a time. So you can imagine I had to listen to that motor whine for several several hours in the shop. It took a little over an hours' worth of machining time to machine down the bore. Thankfully the engine frame (cross-guide slides) didn't machine nearly as hard and they cleaned up rather nicely too. I won't have to spend too much time cleaning up machining marks on them. The cylinder bores will clean up quite nicely I'm certain with a little honing. That is today's project.

Lawrence
.100 diametral; that is a little material! So many "nice numbers" .100 after 7-3/4, (7.850, 7.875, 7.900, 7.9375), yet 8 prevails...... methinks you just wanted an excuse to supersize the monster! :D

Several hours of that would have had me donning noise reducing muffs on top of ear plugs. Thanks for the update, Lawrence!
 
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