Crankshaft seal

[tinkerman]

Would a NOS power head gasket kit include a crankshaft seal? Sure hope so

It's a jungle out there.

[bobw]

None of the power head gasket kits I’ve ordered have included the crankshaft oil seal. Some kits may include the upper and lower case O-rings. Depending on the individual motor, the gasket kit may or may not include the cylinder head gasket.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."

• This reply was modified 4 years, 10 months ago by bobw.

[tinkerman]

Thanks for the reply. I’m now working on a Scott Atwater 5 hp with low compression. I’ve got it torn apart and everything looks really good , cylinders and pistons not scored and the engine looks very clean over all but noticed a lot of gummy oil under the cowling top and bottom. Was thinking maybe a crank seal might help with compression but probably kinda like winning the lottery to find one lol. Anyway got it tore down and gonna paint it and put new decals on and shine it all up good and make a “wall hanger out of it I reckon

It's a jungle out there.

[frankr]

I replaced the top and bottom crank seals in my Scott 5hp with easy-to-find stock seals from a local bearing supply company. I dunno, I may have written the numbers down.—-Maybe.

[frankr]

Yeah, here ya go—

Top seal: OEM#497-1910. TCM# 087111VM-BX. 7/8″ x 1-3/16″ x 3/16″

Bottom seals (takes 2):OEM#497-1915. TCM# 07101VC-BX. 3/4″ x 1″ x 1/8″.

I think this was a 1954 motor.

[tinkerman]

Mine is a 1949 model. But your saying get the old ones out , take to a shop that deals in bearings/ seals and maybe they can get a replacement?

It's a jungle out there.

[The Boat House]

• This reply was modified 3 years, 1 month ago by The Boat House.

[tinkerman]

Thanks I’ll try this

It's a jungle out there.

[frankr]

A little lesson in Scott part numbers: The first section of the number is the motor model number where the part was first used. The second section (after the dash) identifies the particular part. So, taking the number I gave you for the upper seal, 497 is the model of the motor where it was first used (model 497). It so happens that is a 1949 5hp. 1910 says it is an upper crankshaft seal.

Summing up, the numbers I gave you should be good for your 1949 5hp.

• This reply was modified 4 years, 10 months ago by frankr.

[tinkerman]

Thanks frank, good information! I just got a PDF manual for it with parts breakdown so if anyone needs info for a 46-50 Atwater I’ll be glad to forward the information

It's a jungle out there.

[Author]

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