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Piston Ring Assembly Help

#1

G

george2018

Hi all purchased a piston kit with rings from Briggs & Stratton but the top two pistons both have only one color strip. But one has a bevel on it. The instructions did not show any relevant pictures. Which goes first? The bevel or the non-bevel. I attached a couple pics.

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#2

Scrubcadet10

Scrubcadet10

We'll need more information,
engine model number?


#3

G

george2018

The engine model is 12H802-2677-b1


#4

G

george2018



#5

M

mechanic mark



#6

R

Rivets



#7

G

george2018



#8

Scrubcadet10

Scrubcadet10

do you still have the old rings?


#9

G

george2018

do you still have the old rings?
I do but the rings are no longer on the piston


#10

Scrubcadet10

Scrubcadet10

I do but the rings are no longer on the piston
The trick is to lay them out in order and compare the new ones.
I've only ever put 1 set of rings on this particular engine and that's been a few years ago.
Briggs usually includes good instructions with their parts like that.


#11

Hammermechanicman

Hammermechanicman

Screenshot_20230416-230250_Chrome.jpg


#12

Scrubcadet10

Scrubcadet10

in the case of our OP, i don;t think he knows which is the compression and wiper. and that's what he's having trouble with
No Offense.
I thought i used to have a box of quantum rings laying around here with instructions but i guess not.


#13

B

Bertrrr

Use a magnifying Glass and look at the taper on the rings , inside taper goes up, outside down oil rings do not have any taper I'm aware of


#14

G

george2018

Use a magnifying Glass and look at the taper on the rings , inside taper goes up, outside down oil rings do not have any taper I'm aware of
If you look at my very first post the 2 rings in question are there. There is a basically square ring and one that has a taper. So am I right the the taper rings is first and the square goes second?


#15

R

Rivets

Yes


#16

B

bertsmobile1

FWIW
The top ring is the fire ring
It's main job is to take the heat & pressure from the burning gas
The 2nd ring is the one that makes the seal.
Every priston ring company has charts about which way to install the various rings
Total Seal instructions Hastings ring identification
Where people get hung up is they see the rings as BRIGGS Rings , thinking that they must be unique to Briggs , ditto for any other engine, car , truck boat, aeroplane makers.
A piston ring is a pison ring is a piston ring
In the early days there were hundreds of different cross sections.
Now days it has been standardized to a dozen or so and all rings that are the same shape go in the same way in the same order regardless of the ring maker or the engine


#17

S

slomo

Not pertaining to the OP's question but:

Were the ring end gaps checked prior to installing on the piston?


#18

K

kjonxx

Top ring has inside bevel, 2nd one sometimes square or stepped on outside faces down.


#19

J

jmstajr51

Rule of thumb with piston rings. Inside bevel goes up, outside bevel goes down. Inside bevel rings are usually top rings, outside bevels rings are usually 2nd. The idea is the small compression leak around the top ring goes behind the ring to help seal it, the bevel on the 2nd ring helps with oil control.


#20

J

jono252525

Your picture # DF24C7A5-5B1C-4E is your second ring and install with the dot on the rings , up.


#21

U

unkwnmike

Hi all purchased a piston kit with rings from Briggs & Stratton but the top two pistons both have only one color strip. But one has a bevel on it. The instructions did not show any relevant pictures. Which goes first? The bevel or the non-bevel. I attached a couple pics.
bevel one goes in the middle bevel face down


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