Valve cover torque spec for 4.0 SOHC is 89 in-lbs. - Haynes Repair Manual #36071. This manual is for Ford Ranger Pick-ups, 1993-2005 models, but DOES include torque specs for the 4.0L SOHC engine.
The intake on a Ford Explorer 4.0 SOHC are about the same as models from one or two years prior. These are often measured between 156 to 172 inch-pounds.
what are the torque specifications for 2002 ford 4.0 intake manifold
89 inch lbs
the torque specs for valve covers on the 3.0 SOHC is 7ft/lb make sure to clean the oil and old gasket material off well and put the RTV in the corners. take great care not to roll the gasket on the rear valve cover!
The Ford 4.0 liter V6 engine ( both the OHV and SOHC ) ( has 2 engine cylinder heads )
The 4.0 liter OHV has cast iron heads , the 4.0 liter SOHC has aluminum heads
18 n.m 13 lb.ft for all models (sohc,dohc 2.0L & 2.2L)
The 1987 Nissan cylinder had bolt torque specification is 140 pounds. The cylinder head bolts should be torqued in 45 pound intervals.
SOHC motor (T45 torx bit) 89 in-lbs DOHC motor (10mm bolts) 22 FT-lbs
3.2 liter Single overhead cam (SOHC)Torque: 233 ft-lbs. @ 3000 rpmHorsepower: 215 hp @ 5600 rpmValves: 18
In a 1997 Ford F-150 the 4.6 L - SOHC - V8 was rated at : 210 horsepower at 4400 RPM and 290 Ft-Lbs torque at 3250 RPM according to the owners manual