Serial Number / Feature Comparison Chart

This table is a work in progress. Hopefully it will ultimately develope
to a point where we might be able to "date" some of these GRAY engines
as to the year built.

Most of the table headers are self explanitory, but I'll note that on the "Governor Location"
header, there are three different types of governors found on the GRAY engines, noted by
the Governor weight configuration ........

- Two weights mounted on camshaft = On Cam Gear
-Single weight inside the flywheel = Inside Flywheel
- Two weights with sliding collar = Outside Flywheel

12 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
O 12-1047 12 ? Wet Outside Flywheel Grease Cups Top of Hopper Brad Rush

9 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
4.1019.9 9 ? Wet Outside Flywheel Grease Cups Top of Hopper Carl Kunkel


6 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
L 3032 6 ? Wet Outside Flywheel Oil Wick Top of Hopper Leo Wiser


4 Horse Power GRAY Engine Data Table






Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
G 4G2259 4 1911 to 1913 Wet On Cam Gear Oil Wick Top of Hopper Brad Rush
2525 4 Wet On Cam Gear Grease Cups Top of Hopper Bill Honey
G _G2648 4 1911 to 1913 Wet On Cam Gear Oil Wick Top of Hopper Dick Staats
G 4G2575 4 Circa 1912 - 1914 Wet Outside Flywheel Oil wick Top of Hopper Jeremy Withers
G 4G2895 4 Circa 1912 - 1914 Wet On cam gear Oil Wick Top of Hopper Chuck Moss
G 4G3224 4 ? Wet Outside Flywheel Grease Cups End of Hopper PA Stump Auction
G 3752 4 abt. 1914 Wet Outside Flywheel Oil Wick Top of Hopper Ryerse Family
G 28045 4 ? Wet ? ? ? Allen Asher
G 4G5376 4 Circa 1914 Wet Outside Flywheel Oil Wick Top of Hopper Ken Majeski
G 4G5634 4 ? Wet Outside Flywheel Oil Wick Top of Hopper Jeff Miley
G 4G5636 4 ? Wet Outside Flywheel Oil Wick End of Hopper Bob Turner
G 4G8058 4 ? ? Outside Flywheel ? ? Blaine Haynes
G 4G8067 4 ? Wet Outside Flywheel Oil Wick Top of Hopper Bill Decker
G ? 4 ? Wet Outside Flywheel Oil Wick Top of Hopper Pete Stauffer
G G1O497 4 ? Wet Outside Flywheel Oil Wick Top of Hopper Dwayne Simpson
? 4-305-4 4 ? Dry Inside Flywheel Grease Cups End of Hopper David Givens
? 4-1191-4 4 ? ? ? ? ? Jerry Caufman
? 4-1196-4 4 ? Dry Inside Flywheel ? End of Hopper Stan Mosher
? 4-1367- 4 4 ? Dry Inside Flywheel Grease cups End of Hopper Brad Rush
? 1881.4 4 ? Dry Inside Flywheel Grease Cups End of Hopper Dave Wachter
Thoroughbred 3000 4 ? Dry Inside Flywheel Grease Cups End of Hopper James Onions
Leader? ? 4 ? Dry Inside Flywheel Grease Cups End of Hopper Joe Appelget
Thoroughbred 4-4001-4 4 ? Dry Inside Flywheel Grease Cups End of Hopper Chris Curtis
? 4-4033-4 4 ? Dry Inside Flywheel Grease Cups End of Hopper Mike Lockling
? 4307 4 ? Dry Inside Flywheel Grease Cups End of Hopper Patric Leclerc
? 4444 4 ? ? ? ? ? Rick Monk
G 4G476 4 ? Wet Outside Flywheel Oil Wick Top of Hopper Bob Hoag
G 13752 4 1917 ? Wet Outside Flywheel Via Detroit Lubricator Via Detroit Lubricator Chris Walker
T & M made? 40306 4 ? Wet Inside Flywheel Grease Cups End Of Hopper Greg Shipley


2 3/4 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
G 2.75G8018 2 3/4 ? Dry Outside Flywheel Oil Wick Top of Hopper Anonymous
G 2.75 G 6596 2 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Dwight Vivas
G 2.75.G6721 2 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Jim Kocak


2 1/2 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
J 3472 2.5 Dry Outside Flywheel Oil Wick Top of Hopper Harry Coulter
G 2.5 G 3680 2.5 1911 Dry Outside Flywheel Oil Wick Top of Hopper Al Wait
G 2.5 G 4058 2.5 ? Dry Doug
G 3 G 9566 2.5 ? Dry Outside Flywheel Oil Wick Top of Hopper Sonny
G 3G10326 2.5 ? Dry Outside Flywheel Oil Wick Top of Hopper Jeff Miley
? 3 | 523 | 4 2.5 ? Dry Inside Flywheel Grease Cups End of Hopper Tom Green
? 3 | 739 | 4 2.5 ? Dry Inside Flywheel Grease Cup Top of Hopper Jim Cook
T & M 3 | 928 | 4 2.5 ? Dry Inside Flywheel Grease Cup Top of Hopper Chad Johnson


1-1/2 or 1-3/4 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
Marvel 4302 1 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Kevin Davis
? 5135 1 1/2 ? Dry Outside Flywheel Oil Wick End of Hopper Bill Reichmann
? 8168 1 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Ray Gray
Marvel 9145 1 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Denis Rouleau
Marvel 10169 1 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Roland Finkenbinder
Marvel 14417 1 3/4 ? Dry Outside Flywheel Oil Wick End of Hopper Steve Alt
? 413102 1 3/4 ? Dry Inside Flywheel Oil Wick End of Hopper John Peters
? 425862 1 3/4 ? Dry Inside Flywheel Oil Wick End of Hopper John
? 427792 1 3/4 ? Dry Inside Flywheel Oil Wick End of Hopper Leonard Carver
? 431842 1 3/4 ? Dry Inside Flywheel Oil Wick End of Hopper Paul Gray
T & M 2-1251-4 1-1/2 ? Dry Outside Flywheel Grease Cups End of Hopper Dick Webber


1 Horse Power GRAY Engine Data Table


Model Serial Number H.P. Est.Date Head Type Governor Location Main Bearing Lubrication Cylinder Oiler Location Owner / Photo ~ page
41694 1 Dry Inside Flywheel grease cups End of Hopper Leonard Carver
412321 1 Dry Inside Flywheel grease cups End of Hopper Ed Marchesich
4-1858-1 1 1916 ? Dry Inside Flywheel grease cups End of Hopper Matt Whitehall
4-2068-1 1 Dry Inside Flywheel grease cups End of Hopper Tim Russell
43-552-1 1 Dry Outside Flywheel grease cups End of Hopper Leonard Carver
T & M 3279J 1 Dry Outside Flywheel grease cups End of Hopper Dave
T & M 3360J 1 Dry Inside Flywheel Grease cups Top of Hopper Bob Nixon
T & M 3774J 1 Dry Inside Flywheel grease cups Top of Hopper Steve Hopkins
1713-1 1 Dry Outside Flywheel grease cups End of Hopper Brian Roach
T & M ? 1.42081 1 Dry Inside Flywheel grease cups Top of Hopper Chad Johnson
1.1601.4 1 Dry Outside Flywheel grease cups End of Hopper Dave
1.4.1942 1 Dry ? Grease cups Top of Hopper Craig Lipscomb
43.086.886 1 Dry Outside Flywheel grease cups End of Hopper Dave


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