Mystery Crankshaft
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Topic author - Posts: 3327
- Joined: Sat Jan 12, 2019 12:11 pm
- First Name: Mark
- Last Name: Chaffin
- * REQUIRED* Type and Year of Model Ts owned: 1911 Speedster, 1927 Lake Roadster
- Location: Lake Elsinore
- MTFCA Number: 31705
- Board Member Since: 2001
Mystery Crankshaft
I located this beautiful counterbalanced billet crankshaft and would like to see if anyone may know who may have manufactured it. I was unable to locate a name on the crankshaft other than a faint number 1103. The main journals measure 1.625. The rod journals measure 1.480. Stroke is 4". The journals are protected by a protective coating. It appear to be in new condition. Thanks for your assistance.
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Topic author - Posts: 3327
- Joined: Sat Jan 12, 2019 12:11 pm
- First Name: Mark
- Last Name: Chaffin
- * REQUIRED* Type and Year of Model Ts owned: 1911 Speedster, 1927 Lake Roadster
- Location: Lake Elsinore
- MTFCA Number: 31705
- Board Member Since: 2001
Re: Mystery Crankshaft
Also forgot to mention. It has been cross drilled for oil pressure.
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Re: Mystery Crankshaft
All I can offer is that I would certainly use it!!
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Re: Mystery Crankshaft
WE NEED A "LIKE" BUTTON!!
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Re: Mystery Crankshaft
Beautiful! And very interesting.
-Warning- Looks like I may be the "downer" for the day.
But,I don't think I like the method of cross-drilling for pressurized oiling. Given the position of the holes I can see, it is multiple intersecting paths, which remove more internal material with greater exposure to outer surfaces. Such a "lattice" of drilling creates more potential fracture points than simple single angled drilling (IF such single drilling is practicable, which looks to me like it could have been done?).
Worse. I don't like the looks of a couple of the radius cuts on the end of the journals. The worst one looks to be the rear of the center main (almost square). A couple others don't look bad? but the transition from plane to plane is not smooth enough.
If it were mine? I don't think I could resist using it. And it would probably run a long time. But I wouldn't be surprised when it broke either.
-Warning- Looks like I may be the "downer" for the day.
But,I don't think I like the method of cross-drilling for pressurized oiling. Given the position of the holes I can see, it is multiple intersecting paths, which remove more internal material with greater exposure to outer surfaces. Such a "lattice" of drilling creates more potential fracture points than simple single angled drilling (IF such single drilling is practicable, which looks to me like it could have been done?).
Worse. I don't like the looks of a couple of the radius cuts on the end of the journals. The worst one looks to be the rear of the center main (almost square). A couple others don't look bad? but the transition from plane to plane is not smooth enough.
If it were mine? I don't think I could resist using it. And it would probably run a long time. But I wouldn't be surprised when it broke either.
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Re: Mystery Crankshaft
Mark- I believe I have an identical crank minus the cross drilling on the rod journals.
Dan
Dan
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Re: Mystery Crankshaft
I have a similar crankshaft with no counterweights and a 3 inch stroke.
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Re: Mystery Crankshaft
No. one picture, looks like it has been ground up to the Radius, and left a right angle. Closer pictures would take the guess work out of it.
I was looking at No. 1 Pin, the closest Radius, to the front of the crank.
Here was one of the Model T cranks that, Vern, at Arnold Motor, in Fort Dodge, Iowa Ground. His cranks were perfect in every way.
Herm.
I was looking at No. 1 Pin, the closest Radius, to the front of the crank.
Here was one of the Model T cranks that, Vern, at Arnold Motor, in Fort Dodge, Iowa Ground. His cranks were perfect in every way.
Herm.
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Topic author - Posts: 3327
- Joined: Sat Jan 12, 2019 12:11 pm
- First Name: Mark
- Last Name: Chaffin
- * REQUIRED* Type and Year of Model Ts owned: 1911 Speedster, 1927 Lake Roadster
- Location: Lake Elsinore
- MTFCA Number: 31705
- Board Member Since: 2001
Re: Mystery Crankshaft
I want to say it is almost identical to the bottom picture Tom posted above. It looks very similar.
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- First Name: Kevin
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Re: Mystery Crankshaft
I am fuzzy on the details, but that kinda looks like a "Joe Morris" (?) crankshaft. I have one in my speedster, but it has been over 25 years since I've seen it (fortunately). I hear they have problems. Hope others will chime in with better info. I think Joe resided somewhere in the California Sierra foothills.
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Re: Mystery Crankshaft
The Joe Morris cranks were very similar in appearance to this crank... but were fabricated from multiple pieces and welded together. Joe made no attempt to hide his assembly process and his cranks are instantly recognizableKevin_m wrote: ↑Tue Feb 04, 2020 8:31 pmI am fuzzy on the details, but that kinda looks like a "Joe Morris" (?) crankshaft. I have one in my speedster, but it has been over 25 years since I've seen it (fortunately). I hear they have problems. Hope others will chime in with better info. I think Joe resided somewhere in the California Sierra foothills.
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Topic author - Posts: 3327
- Joined: Sat Jan 12, 2019 12:11 pm
- First Name: Mark
- Last Name: Chaffin
- * REQUIRED* Type and Year of Model Ts owned: 1911 Speedster, 1927 Lake Roadster
- Location: Lake Elsinore
- MTFCA Number: 31705
- Board Member Since: 2001
Re: Mystery Crankshaft
Lots of very good information provided. Thank you very much.