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138190009 Tillotson Clone 68mm Standard Low Tension Rings
138190009 Tillotson Clone 68mm Standard Low Tension Rings - Packaged
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138190009 Tillotson Clone 68mm Standard Low Tension Rings

Part Number: 138190009
Your Price: $4.62
Availability: In Stock.

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Description

The Tillotson Rings for the standard 68mm bore is 45% low tension that stock tension rings. 

Unlike other low tension rings that are heat sacked to make low tension the Tillotson Rings are designed and factory-built for the best quality low tension rings on the market. These rings fit most 196 clones(Tillotson 196R, Ducar 196, BSP 196)If using in an original Honda GX200 or GX160 you must use the clone piston as the Clone rings may not fit the Honda piston. 


AKRA 2020 Rules for Rings

Top ring and middle ring .115” max-width, .060” max thickness.) Filing of ring end gaps permitted including oil expander, max end gap .040” (top rings only.) The lapping of rings permitted for proper seal. Piston Ring must be on the piece (unbroken) when presented for tech. Piston Rings must be self-supporting in the cylinder bore when checked installed on the piston with a connecting rod attached (rod cap and bolts installed are not required for this check). 


NKA 2020 Rules for Rings:

40.4.13: Piston Rings

40.4.13.1: It is mandatory that all three rings be intact and functional.

40.4.13.2: Top ring must be the chrome face ring

40.4.13.3: No alterations of rings are permitted.

40.4.13.4: Ring Sizes

• Top Ring

.058” +/-.005” height & .115” maximum width.

77

• Middle Ring

.058” +/-.005” height & .115” maximum width.

• Oil Expander Ring (reference)

.095” +/-.005” height & .092” +/-.005” width

40.4.14: Ring Tension Requirement

• Top two rings must support themselves in the cylinder when removed from

the piston. They cannot fall through the cylinder.

• Bottom ring is a non-tech item regarding tension. Bottom expander ring & two

rail rings, when mounted on piston and rod in place should support piston in

the cylinder when inserted upside-down.

40.4.15: Ring Tension Inspection Procedure

• Top 2 rings must support themselves without assistance in the cylinder.

• Each of the top two rings should be placed, individually, approx. one inch

(1”) down in the cylinder.

• Square ring with piston turned upside down.

• If ring supports itself it is legal.

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