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SOHC Engine Overhaul and Torque specs - Printable Version

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SOHC Engine Overhaul and Torque specs - JDMBorn - 07-23-2009 10:09 PM

Ok, i figured i would start this thread to help out with some engine overhauling and torque specs for the SOHC. I am working on the DOHC specs. Hope this helps some people.


SOHC General engine overhaul & torque specs
96-00 Honda Civic
General
Cylinder compression pressure
Standard………………………………...............184 psi
Minimum……………………………….............135 psi
Maximum variation between cylinders…………28 psi
Oil pressure (hot)
At idle………………………………..................10 psi
At 3000rpm………………………………..........50 psi

Engine block
Cylinder bore diameter
Standard………………………………...............2.9530 - 2.9540 inches
Service limit……………………………….........2.9560 inches maximum
Cylinder taper limit………………………………...........0.002 in maximum
Cylinder out-of-round limit……………………………..0.002 in maximum
Block deck warpage………………………………..........0.004 in maximum

Pistons and rings
Piston diameter
Standard………………………………................2.9520 - 2.9524 inches
Service limit………………………………..........2.9516 in maximum
Diameter measurement point (from bottom)……………..13/64 in
Piston-to-cylinder wall clearance
Standard……………………………….................0.0004 - 0.0016in
Service limit………………………………...........0.002 in maximum
Ring groove clearance
Top compression ring
Standard……………………………….................0.0014 - 0.0024 in
Service limit………………………………...........0.005 in maximum
2nd compression ring
Standard………………………………..................0.0012 - 0.0022 in
Service limit………………………………............0.005 in max
Ring end gap
Top compression ring
Standard……………………………….................0.006 - 0.012 in
Service limit………………………………...........0.024 in max
2nd compression ring
Standard………………………………..................0.012 - 0.018 in
Service limit………………………………............0.028 in max
Oil control ring
Standard………………………………..................0.008 - 0.028 in
Service limit………………………………............0.031 in max



Crankshaft and connecting rods
Endplay
Standard………………………………...............0.004 - 0.014 in
Service limit……………………………….........0.018 in max
Main bearing journals
Diameter………………………………...............2.1644 - 2.1654 in
Taper………………………………....................0.0002 in max
Out-of-round……………………………….........0.0002 in max
Runout………………………………..................0.001 in max
Main bearing oil clearance
Journals no. 1 and 5
Standard………………………………................0.0007 - 0.0014 in
Service limit………………………………..........0.002 in max
Journals no. 2,3 and 4
Standard……………………………….................0.0009 - 0.0017 in
Service limit………………………………..........0.002 in max
Connecting rod journal
Diameter………………………………................1.7707 - 1.7717 in
Taper………………………………......................0.0002 in max
Out-of-round………………………………..........0.0002 in max
Connecting rod bearing oil clearance
Standard………………………………..................0.0008 - 0.0015 in
Service limit………………………………............0.002 in max
Connecting rod side clearance (endplay)
Standard………………………………..................0.006 - 0.012 in
Service limit………………………………...........0.016 in max

Cylinder head and valves
Head warpage limits
Max without resurfacing…………………………0.002 in
Service limit………………………………...........0.008 in
Cylinder head height………………………………...........3.659 - 3.663 in
Valve seat angle………………………………...................45 degrees
Valve face angle………………………………..................45 degrees
Valve margin width
Intake………………………………......................0.026 in max
Exhaust………………………………...................0.037 in max
Valve stem diameter
Intake
Standard……………………………….................0.2157 - 0.2161 in
Service limit………………………………............02146 in
Exhaust
Standard………………………………..................0.2146 - 0.2150 in
Service limit………………………………...........0.2134 in
Valve guide inside diameter
Standard………………………………..................0.217 - 0.218 in
Service limit………………………………............0.219 in max


Valve stem-to-guide clearance
Intake
Standard………………………………..............0.001 - 0.002 in
Service limit………………………………........0.003 in max
Exhaust
Standard………………………………...............0.002 - 0.003 in
Service limit………………………………........0.004 in max
Valve stem installed height (measured from tip of valve)
Standard………………………………..............2.093 - 2.112 in
Service limit………………………………........2.122 in max
Valve spring free length
D16Y7.……………………………...............................2.28 in
D16Y5
Intake……………………………….....................2.22 in
Exhaust………………………………..................2.28 in
D16Y8
Intake……………………………….....................2.28 in
Exhaust………………………………...................2.31 in


General
Firing order………………………………......................1-3-4-2
Cylinder numbers (front to rear)………………………..1-2-3-4
Bore………………………………..................................2.95 in
Stroke………………………………...............................3.54 in
Displacement………………………………...................97.0 cubic in (1.6 liters)

Camshaft
Endplay
Standard………………………………..............0.002 - 0.006 in
Maximum………………………………............0.020 in
Lobe height
D16Y5
Intake
Primary………………………………...........1.5129 in
Secondary……………………………….......1.2674 in
Exhaust………………………………...............1.5269 in
D16Y7
Intake………………………………..................1.3897 in
Exhaust………………………………...............1.4678 in
D16Y8
Intake
Primary………………………………...........1.4479 in
Mid……………………………….................1.5068 in
Secondary……………………………….......1.4592 in
Exhaust………………………………...............1.4964 in
Runout
Standard……………………………….............0.001 in
Service limit……………………………….......0.002 in max
Journal oil clearance
Standard……………………………….............0.002 - 0.004 in
Service limit……………………………….......0.006 in max

Oil pump
Rotor-to-cover clearance
Standard………………………………............0.001 - 0.003 in
Service limit………………………………......0.006 in max
Tooth tip clearance
Standard………………………………............0.001 - 0.006 in
Service limit……………………………….....0.008 in max
Outer rotor-to-pump body clearance
Standard………………………………............0.004 - 0.007 in
Service limit………………………………......0.008 in max

Torque Specs
Camshaft bearing cap bolts
6mm bolts………………………………........104 in-lbs
8mm bolts……………………………….........14 ft-lbs
Camshaft sprocket bolt………………………………..27 ft-lbs
Crankshaft fluctuation sensor mounting bolt…………104 in-lbs
Main bearing cap bolts
Step 1.……………………………...................18 ft-lbs
Step 2.……………………………....................38 ft-lbs
Connecting rod bearing cap nuts………………………23 ft-lbs
Crankshaft pulley bolt
1996-earlier………………………………......130 ft-lbs
1997-later
Step 1.……………………………...............14 ft-lbs
Step 2.……………………………...............Tighten and additional 90 degrees
Cylinder head bolts
Step 1.……………………………....................14 ft-lbs
Step 2.……………………………....................36 ft-lbs
Step 3.……………………………....................49 ft-lbs
Step 4.……………………………....................49 ft-lbs
Driveplate-to-crankshaft bolts…………………………54 ft-lbs
Intake manifold nuts……………………………….......17 ft-lbs
Exhaust manifol-to-cylinder head nuts………………..23 ft-lbs
Exhaust pipe-to-manifold nuts
D16Y5, D16Y7.……………………………....25 ft-lbs
D16Y8.…………………………….................40 ft-lbs
Exhaust manifold upper heat shield bolts…………….17 ft-lbs
Exhaust manilfold lower heat shield bolts
D16Y5, D16Y7.……………………………....96 in-lbs
Flywheel-to-crankshaft bolts………………………….87 ft-lbs
O2 sensor……………………………….......................33 ft-lbs



Oil pressure switch………………………………........156 in-lbs
Oil pan drain plug
D16Y5, D16Y8………………………….…....29 ft-lbs
D16Y7.……………………………..................33 ft-lbs
Oil pan-to-engine bolts………………………………...104 in-lbs
Oil pump pick-up tube to pump housing nuts………….96 in-lbs
Oil pump pick-up screen-to-main bearing cap………96 in-lbs
Oil pump housing-to-block bolts…………………….96 in-lbs
Oil pump cover-to-housing…………………………..60 in-lbs
Rear main oil seal housing bolts…………………….96 in-lbs
Timing belt cover bolts………………………………86 in-lbs
Timing belt tensioner bolt……………………………33 ft-lbs
Valve cover bolts………………………………..........86 in-lbs
VTEC lock-up solenoid bolts………………………104 in-lbs
Water pump bolts……………………………….......104 in-lbs


RE: SOHC Engine Overhaul and Torque specs - Artikgrau325is - 07-23-2009 10:30 PM

Definitely some helpful information for the gearheads on here, thanks for posting this up!

Stickied until further notice.-Artik


RE: SOHC Engine Overhaul and Torque specs - royriggity™ - 07-23-2009 11:56 PM

ooh thank you.
some great info.


RE: SOHC Engine Overhaul and Torque specs - EsotericImage - 07-24-2009 12:42 AM

Wow, B20 specs would be appreciated also Goodjob


RE: SOHC Engine Overhaul and Torque specs - Gimmezell - 07-24-2009 06:58 AM

Awesome job man. Much appreciated.


RE: SOHC Engine Overhaul and Torque specs - JDMBorn - 07-24-2009 07:33 AM

i will have the b series up either tonite or by monday


RE: SOHC Engine Overhaul and Torque specs - 97civicfan - 08-09-2009 07:45 PM

Thanks for the post! This is some great information. I was curious on what the minimum starting compression was to start the engine. My engine is not starting right now and I am getting about 105 psi on each cylinder. I figured it may be the headgasket but seems odd that it's in each cyliner. Any thoughts would be great. Thanks.

Engine D16Y8
Car 97 Honda Civic EX


RE: SOHC Engine Overhaul and Torque specs - ej8_d16y8 - 08-27-2009 05:58 PM

Good stuff bro


RE: SOHC Engine Overhaul and Torque specs - DphAmT - 08-27-2009 11:48 PM

since im a noob.. anyone want to fill me in on how to understand this?