Two day's ago I picked up an Model T engine with # 70784 .
I think that must be october 1911 .
But the cyl. head has 18 mm sparkplug thread .
Some time in the past I have read about that .
Do one of you can tell me why ???
Toon
Spark plug thread
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ABoer
Topic author - Posts: 204
- Joined: Mon Jan 07, 2019 2:41 pm
- First Name: Anthonie
- Last Name: Boer
- * REQUIRED* Type and Year of Model Ts owned: 1912 touring 1923 roadster 1925 pickup
- Location: Klaaswaal NL
- MTFCA Number: 19790
Spark plug thread
Hi all ;
Two day's ago I picked up an Model T engine with # 70784 .
I think that must be october 1911 .
But the cyl. head has 18 mm sparkplug thread .
Some time in the past I have read about that .
Do one of you can tell me why ???
Toon
Two day's ago I picked up an Model T engine with # 70784 .
I think that must be october 1911 .
But the cyl. head has 18 mm sparkplug thread .
Some time in the past I have read about that .
Do one of you can tell me why ???
Toon
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Wayne Sheldon
- Posts: 3675
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- First Name: Wayne
- Last Name: Sheldon
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- Location: Grass Valley California, USA
- Board Member Since: 2005
Re: Spark plug thread
Well, I do hope someone more familiar with this particular subsection of model T history can/will chime in here. If I recall correctly, the 18mm spark plug thread was unique to either English or European model Ts. Hence in Netherlands.I do not recall for how many years. Looks like a fantastic engine to get!
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CudaMan
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- First Name: Mark
- Last Name: Strange
- * REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
- Location: Hillsboro, MO
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Re: Spark plug thread
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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ABoer
Topic author - Posts: 204
- Joined: Mon Jan 07, 2019 2:41 pm
- First Name: Anthonie
- Last Name: Boer
- * REQUIRED* Type and Year of Model Ts owned: 1912 touring 1923 roadster 1925 pickup
- Location: Klaaswaal NL
- MTFCA Number: 19790
Re: Spark plug thread
Mark S ; Thank you very much for clearing up my memory .
Toon
Toon
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A Whiteman
- Posts: 1015
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- First Name: Adrian
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- * REQUIRED* Type and Year of Model Ts owned: 1926 TT, 1924 Colonial Roadster, 1924 'Bullnose' Morris, 1925 'Bullnose' Morris, 1936 JD AR
- Location: South Island, New Zealand
Re: Spark plug thread
Very interesting engine. Would you mind posting pictures of the other side and from the rear/front please?
It is intriguing to play "spot the detail differences" between a European built engine and Canadian ones we have in New Zealand.
So far:
hot air pipe,
valve chest covers,
wing nuts fasteners on covers,
oil filler cap,
front casting detail around oil filler,
engine number placement,
It is intriguing to play "spot the detail differences" between a European built engine and Canadian ones we have in New Zealand.
So far:
hot air pipe,
valve chest covers,
wing nuts fasteners on covers,
oil filler cap,
front casting detail around oil filler,
engine number placement,
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KWTownsend
- Posts: 1128
- Joined: Mon Jan 07, 2019 6:51 pm
- First Name: Keith
- Last Name: Townsend
- * REQUIRED* Type and Year of Model Ts owned: late 1911 touring, 1915 runabout, 1919 touring, brass speedster
- Location: Gresham, Orygun
- MTFCA Number: 14778
- MTFCA Life Member: YES
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- Board Member Since: 1999
Re: Spark plug thread
Adrian,
Those are all characteristics of a late 1911 engine. Including the seven rivet pan (which should have a small reinforcement on the bottom by the fourth main) and the bottom inspection covert will have an embossed outer edge. The hot air pipe is the style used from about 1913-1915. The 1911 hot air pipe would have been cast iron.
Toon, is there a date (month and day) numbers by the center head bolt?
Keith
Those are all characteristics of a late 1911 engine. Including the seven rivet pan (which should have a small reinforcement on the bottom by the fourth main) and the bottom inspection covert will have an embossed outer edge. The hot air pipe is the style used from about 1913-1915. The 1911 hot air pipe would have been cast iron.
Toon, is there a date (month and day) numbers by the center head bolt?
Keith
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Kaiser
- Posts: 1033
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- First Name: Leo
- Last Name: van Stirum
- * REQUIRED* Type and Year of Model Ts owned: 1923 Huckster, '66 CJ5 daily driver
- Location: Netherlands
- Board Member Since: 2016
Re: Spark plug thread
Toon dat is weer wat aparts dat je hebt opgedoken ! 
Groeten, Leo
Groeten, Leo
When in trouble, do not fear, blame the second engineer ! 
Leo van Stirum, Netherlands
'23 Huckster, '66 CJ5 daily driver
Leo van Stirum, Netherlands
'23 Huckster, '66 CJ5 daily driver
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RajoRacer
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- Location: Longbranch, WA
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Re: Spark plug thread
Keith - I was under the impression that the "heavily crimped" pipe was '12 and the other "not so" were the '13 - '15 style.
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Walter Higgins
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- MTFCI Number: 153
Re: Spark plug thread
Good find! It looks like a whole maintained 1911 engine with service updates, like the later fan assembly. Neat that it still has a dogleg intake and wing nuts. Does the exhaust manifold have "T511" on the center-inside facing the head and, if so, is it prominent or smaller and harder to read?