Torque specs for 4.2

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May 10, 2006 | 08:44 PM

scoutpup99

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Torque specs for 4.2

I am reassembling my 4.2 and need the torque specs for the bearing caps and the rod caps. the chilton manual gives me the specs for the 460 but not the 4.2. The motor is out of a 97 f-150. it had a bent rod due to hydrolock. luckly no damage beyond piston and rod. I am rebuilding it completely. thanks for the help.

Dan Pennington
69 IH Scout 800A
89 F-350 crewcab dually
90 Ranger 4X4 (322000 miles on orig. mtr)
01 Expedition

May 11, 2006 | 06:32 AM

BrianA

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Joined: Aug 2001

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From: Trussville, Alabama

According to Haynes my book:

Main bearing cap stud/bolts: 1, 2 and 3 = 85 - 91 lb-ft
Rear = 81 - 88 lb ft

Connecting rod cap:
Step 1 = 29 lb ft
Step 2 = Rotate additional 90 deg.