Johnson KA-37 Piston Rings Part Number?

[Buccaneer]

Anyone have a superceded part number for piston rings…..

27-25

Thanks

Prepare to be boarded!

[oldlure]

Buc,

I have a price book from 1972 only shows 27-25 as N/A

[Buccaneer]

oldlure wrote:

Buc,

I have a price book from 1972 only shows 27-25 as N/A

Thanks, Al Klebeck had a 1964 pdf with parts numbers,
and it showed no superseded part number for those rings.
Someone suggested that Scott 7.5 or 10 hp rings would work,
but I haven’t checked it out yet.

Prepare to be boarded!

[Buccaneer]

The Scott 3.5 and 3.6 hp single cylinder motors seem to have the
same 2-1/8″ bore as the Johnson K’s I’m working on, but
does anyone know if those rings are 1/8″ thick, like the Johnsons?

The Scott 463-1877 rings don’t seem readily available.
Anyone selling them?

Prepare to be boarded!

[Boonie]

Hey Buccaneer. Did you ever find rings for your KA 37?  Any info would be helpful. Looking for a connecting rod as well.

1 user thanked author for this post.

Buccaneer

[eltoquad]

Have you tried “ringspacers..com” ? Usually $5.00  per ring plus postage.

[ede]

Have NOS rings  May have con rod, need to verify part number  Ed Elliott   eddelliott@cox.net

[Buccaneer]

Boonie wrote:

Hey Buccaneer. Did you ever find rings for your KA 37?  Any info would be helpful. Looking for a connecting rod as well.

Here’s my notes from the KA-37 regarding the piston rings…..
———–

9.3 HP
2-1/8″ bore x 1-31/32″ stroke
13 pint gas tank capacity
Champion R-7 spark plug
Weight, 64#

Compression (with fogging oil)
85 psi in both cylinders…
but I found the bottom piston had
one ring missing.
Rings are 2-1/8″ x 1/8″
1-26-24, I ordered 4 Maytag rings
of that size.
Note: Maytag rings were about .013 deeper,
so I relieved the inside of the rings a
few thousands with a Dremel & stone.

Note: Replaced the four Maytag rings with Scott 3.6 hp
rings. Compression after 15 second run, T-95, B- 98 psi.

Prepare to be boarded!

[Author]

Posts