Topic: 1941 Mercury KB3 “Paint Scheme” ? – Page 3

This topic has 29 replies, 7 voices, and was last updated 1 year, 3 months ago by opposedtwin.

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January 20, 2023 at 4:02 pm #271502
Buccaneer
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US Member
Trying to figure out what model one has, if the two halves of the gas tank are
from different models, could cause one to start drinking!

Interesting from the Mercury chart above, that my KB-3 is shown just as “Single”
and the KB-1A is shown as “Deluxe Single”.
The later has a single transom clamp, no rewind, no cowls.
the prior should have all of those amenities.

Bob Grubb’s web site seems to suggest that the later model was a “deluxe”
because it had the conventional carburetor, and the prior only had
the poppet valve carb. Not sure if I buy that, but I know zilch on the subject!

Prepare to be boarded!
January 20, 2023 at 10:22 pm #271519
green-thumbs
Participant
US Member - 2 Years
Sometimes my honestly held opinions do now hold water when confronted by the facts.

That said, it seems to me the bare bones KB-1 is the Special, the carburetor equipped KB-1A is likely the Standard and the fully dressed up KB-3 would be the Deluxe. That may or may not be how Kiekhaefer saw things.

Louis
January 20, 2023 at 10:38 pm #271520
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green-thumbs wrote:

Sometimes my honestly held opinions do now hold water when confronted by the facts.

That said, it seems to me the bare bones KB-1 is the Special, the carburetor equipped KB-1A is likely the Standard and the fully dressed up KB-3 would be the Deluxe. That may or may not be how Kiekhaefer saw things.

Louis

Louis, your opinions on the model designations make sense to me!

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January 20, 2023 at 10:53 pm #271521
Buccaneer
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Louis, is this the rubber wedge you refer to that goes between the gas tank and spark plug cover?
The diagram is for a KD3 model, and I can’t find the corresponding parts ID sheet for it’s part number.

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January 21, 2023 at 12:51 pm #271533
green-thumbs
Participant
US Member - 2 Years
The most useful tool in my tool box… a digital camera.

Note the plumbing fitting have been removed from water jacket Both spark plug covers are for the lower cylinder of a twin cylinder model. The spark plug cover for the upper cylinder of a twin and for single cylinder models is cut away to provide room tor the plumbing fitting. It may be possible to convert by careful work with a Dremel tool. Perhaps , s subject for a future project as Slipshod Engineering & Maching.
January 21, 2023 at 7:16 pm #271553
Buccaneer
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Louis, a “Picture is worth 999 words”. Thanks, rubber block is
now visualized!

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January 23, 2023 at 8:20 am #271620
opposedtwin
Participant
US Member - 2 Years
Here is an ad for the 1941 KB3 Torpedo
January 23, 2023 at 9:29 am #271622
Buccaneer
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US Member
Thanks for the ad Scott…… wish I had those cowlings!

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January 23, 2023 at 4:08 pm #271634
green-thumbs
Participant
US Member - 2 Years
Cowls for single cylinder models are fragile castings. I believe a club member was making semi finished replacements at one time and perhaps still available. I hav

Cowls for twins are very durable and not that hard to find id n9nuaveot with motor.

I have 5 or 6 singles and one broken cowl. I also have 5 or 6 twins all wit6h cowls, undamaged except for a few extra holes. May indicate relative scarcity and reason for it.

Louis
- This reply was modified 1 year, 3 months ago by green-thumbs.
January 23, 2023 at 7:50 pm #271660
opposedtwin
Participant
US Member - 2 Years
Buc,
One will show up for you eventually. I have a kd3 with that cowl but am looking for one for my kd3s model.
Keep yer eyeballs peeled!
Scott
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1941 Mercury KB3 “Paint Scheme” ?

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