Egr Piston, Piston Ring, And Connecting Rod - Detroit Diesel MBE 4000 Service Manual

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1.18 EGR PISTON, PISTON RING, AND CONNECTING ROD

The difference from the non-EGR engine cylinder liner to the EGR engine, is a groove on the
top part of the cylinder liner, which houses the carbon scraper ring. The EGR engine uses a
new tool for piston installation; however, all other procedures are the same for the EGR and
non-EGR engine.
1.18.1
Perform the following steps to remove the piston from an EGR engine:
The carbon scraper ring has a smaller internal diameter than
the piston skirt diameter; therefore, the piston installation and
removal must be carried out with the carbon scraper ring
removed.
NOTE:
Piston removal in the EGR engine is performed with the engine facing upright – not
turned on it's side.
1. Remove the carbon scraper ring from the cylinder liner groove.
1. Cylinder Liner
2. Carbon Scraper Ring
Figure 1-104
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Piston Removal for EGR Engine
Removing Carbon Scraper Ring
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NOTICE:
3. Installed Piston
4. Installed Carbon Scraper Ring
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MBE 4000 SERVICE MANUAL
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1-135
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