Reply to thread

Message: [QUOTE="uncool, post: 1506282, member: 1802"] Piston Ring End Gap On Ford/Navistar 7.3L T444E Diesel Engines The AERA Technical Committee offers the following information on piston ring end gap for Ford/Navistar 7.3L T444E diesel engines. This engine's second compression ring uses an increased piston ring gap. However uncommon, this engine does require a minimum second ring end gap of .062". This design is similar to earlier V-8 diesel engines built by this manufacturer. The minimum gap is larger than what is commonly seen for a compression ring end gap in other engines. Navistar uses the wider end gap to aid in oil control, and to lower engine emissions. Using a wider end gap in the second ring land evens out the pressures in the ring land area of the piston. AERA members are advised to adhere to the following piston ring end gap specifications when installing rings in a 7.3L T444E diesel engine. Top - .014"-.024 Second - .062"-.072" Oil Ring - .012"-.024" [/QUOTE]

Verification

Random media

Mal_s_Truck

front_axle_swap1

gopro

Elite WG

1291077660147

SF2

2010 tailgate / 2013 tail lights

Ford ranger danger

811

Ooops

Swamps Timing 1

2013-03-09_15-42-52_372

Latest posts

s364.5
- Latest: htsummers22
- Yesterday at 10:54 PM
Want to Buy
S
Won’t start issues
- Latest: Scott G
- Yesterday at 9:45 PM
7.3 Tech & FAQ
R
2010 headunit
- Latest: Racer71
- Yesterday at 4:57 PM
6.4 Tech
9
OEM LED sport headlights
- Latest: 99fordman18
- Thursday at 8:15 AM
2017+ 6.7 Aluminum Super Duty
10R140 failure
- Latest: PSD-BLACK-CLOUD
- May 9, 2025
2017+ 6.7 Aluminum Super Duty

Members online

No members online now.

Total: 602 (members: 0, guests: 602)

Top