Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Piston, Engine

Weight (Less Pin) 14.7 to 15.1 oz
Piston Pin Bore (Centerline to Piston Top) 1.599 to 1.603 Inch (in)
Piston-To-Bore Clearance 0.0008 to 0.0015 Inch (in)
Ring Gap Clearance Top Compression Ring 0.0090 to 0.0240 Inch (in)
2nd Compression Ring 0.0190 to 0.0380 Inch (in)
Oil Control Steel Rails 0.010 to 0.060 Inch (in)
Ring Side Clearance Compression Rings 0.0017 to 0.0033 Inch (in)
Oil Control Ring 0.0024 to 0.0083 Inch (in)
Piston Ring Groove Height Compression Rings 0.0602 to 0.0612 Inch (in)
Oil Control Ring 0.1589 to 0.1598 Inch (in)
Piston Ring Groove Diameter No.1 Compression Ring 3.48 to 3.49 Inch (in)
No. 2 Compression Ring 3.45 to 3.46 Inch (in)
Oil Control Ring 3.53 to 3.54 Inch (in)
Piston Pin Bore Diameter 0.9312 to 0.9315 Inch (in)
Piston Pin Diameter 0.9306 to 0.9307 Inch (in)
Piston-To-Pin Clearance 0.0005 to 0.0009 Inch (in)
Piston-To-Pin Connecting Rod (Press Fit) 2000 lbf