Disassembled Engine
Engine
Crankshaft and Main Bearings
Connecting Rods and Bearings
Camshaft
Tappets
Pistons
Piston Pins
Piston Rings
Valves
Valve Springs
Valve Timing
Cylinder Head
Cylinder Block
Engine Lubrication

ENGINE	215	245	265
Type	Vertical in line with inclined O.H.V.	Vertical in line with inclined O.H.V.	Vertical in line with inclined O.H.V.
No. of Cylinders	6	6	6
Cylinder Bore x Stroke	3.520" x 3.680"	3.760" x 3.680"	3.910" x 3.680"
Piston Displacement	215 cu. ins.	245 cu. ins.	265 cu. ins.
Compression Ratio (nominal)   Optional E37 Engine   Optional E38 Engine	8.0:1	9.5:1	9.5:1  9.7:1 10.0:1
Compression Pressure (nominal)   Optional E37 Engine   Optional E38 Engine	120-155 p.s.i.	160-205 p.s.i.	160-205 p.s.i. 160-205 p.s.i. 160-205 p.s.i.
Max. variation between Cylinders	20 p.s.i.	20 p.s.i.	20 p.s.i.
Firing Order	1, 5, 3, 6, 2, 4	1, 5, 3, 6, 2, 4	1, 5, 3, 6, 2, 4

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CRANKSHAFT AND MAIN BEARINGS	215 / 245 / 265
Type	Fully counter balanced
Material   Optional E37 Engine   Optional E38 Engine	Nodular Cast-Iron  "Selected Hardness"  "Shot Peined"
No. of Main Bearings	Seven
Main Bearing Material   Optional E37 and E38 Engines	Steel backed babbit-lead base  No. 6 bearing tin base  Steel backed babbit-lead/high tin
Main bearing journal diam.	2.5000" Nominal (2.4995" to 2.5005")
Main bearing journal length	1.000" to 1.010" (No 6 1.0515" to 1.0545")
Con-rod journal diam.	2.000" Nominal (1.999" to 2.000")
Con-rod journal length	.978" to .982"
Max. ovality permissible	.0010"
Max. taper permissible	.0005"
Clearance desired	.0005" to .0015"
Max. clearance allowed	.0025"
Crankshaft end-float	.0035" to .0095"
Thrust taken by	No. 6 main bearing
Finish at rear seal surface	Diagonal Knurling
Main bearings for service	STD, .001", .002", .003", .010", .012", .020" & .030"

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CONNECTING RODS AND BEARINGS	215 / 245 / 265
Type   Optional E38 Engine	Drop forged "I" beam "Shot peined" coloured white
Length centre to centre	5.750"
Weight less bearing shells   (large end)   (Small end)	510 +/- 2 gms   (E37 & E38 535 gms) 195 +/- 2 gms   (E37 & E38 242 gms)
Con-rod bearing material    Optional E37 and E38 Engines	Steel backed babbit-copper/tin/lead Steel backed tin/lead/sintered-copper
Bearing diameter x width	2.001" x .980"
Clearance desired   Optional E37 and E38 Engines	.0004" to .0024"                                                    .0005" to .0014"
Max. out of round or taper	.0010"
Max. clearance allowed	.0025"
Side clearance	.0070" to .0130"
Rod bearing bore diameter	2.1252" to 21257"
Rod bearing bore "crush"	.0020" to .0060"
Rod small end bore diameter   Optional E37 and E38 Engines   (fully floating gudgeons)	.9206" to .9211"                                                    .9221" to .9224"
Bearings for service	STD, .001", .002", .003", .010", .012", .020" & .030"

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CAMSHAFT	215 / 245 / 265
Type	Hardened chrome alloy cast iron
Drive	Silent chain with double sided guide
Sprocket material   Optional E37 and E38 Engines	Cast iron alloy Machined Steel
Thrust taken by	Cylinder block
Number of bearings	Four
Nominal tappet lift	.233"          .233"          .245"
Camshaft bearing material	Steel-backed babbit
Bearing clearance	.0010" to .0030"
Max. clearance allowable	.0050"
Camshaft journal sizes:    Diameter No. 1                          2                          3                          4	1.998" to 1.999" 1.982" to 1.983" 1.967" to 1.968" 1.951" to 1.952"
Camshaft bearing sizes:   Diameter No. 1                         2                         3                         4	2.000" to 1.999" 1.984" to 1.985" 1.969" to 1.970" 1.953" to 1.954"
Timing Chain   Number of links   Pitch   Width	44 .50" .88"

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TAPPETS	215 / 245 / 265
Type	Hydraulic with metering valve
Clearance in block	.0010" to .0018"
Body diameter	.9040" to .9045"
Clearance between valve stem and rocker tip (tappet bled down)	.057" to .229"
Tappet stroke	.167" min.

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PISTONS	215 / 245 / 265
Type	Horizontal slot with strut (autothermic)
Piston crown design    Optional E37 Engine   Optional E38 Engine	"Bowl"                   "Flat"                  "Flat"                                                      .014" to .020" Crown                                                      .034" to .040" Crown
Diametral land clearance    Optional E37 and E38 Engines	.0210" to .0280"                                                       .0215" to .0285"
Clearance at top skirt    Optional E38 Engine	.0005" to .0015"                                                        .0010" to .0020"
Weight (std. to .040" oversize)   Optional E37 Engine   Optional E38 Engine	490 +/- 2 gms       547 +/- 2 gms       562 +/- 2 gms                                                              625 +/- 2 gms                                                              633 +/- 2 gms
Piston length (overall)	3.409" to 3.414"
Pin-hole diameter	.92250" to .92225"
Ring groove depth No. 1                                       2                                       3	.194" to .202" .194" to .202" .188" to .196"
Pistons for service	STD., .005",.020" and .040" O/S.

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PISTON PINS	215 / 245 / 265
Type   Optional E37 and E38 Engines	Press fit in rod                                                      Fully floating
Diameter	.9219" nominal (.9218" to .9220")
Length	2.980"
Clearance in piston	.00045" TO .00075"
Interference in rod	.0009" to .0012"
Pins for service	Standard only
Direction offset in piston	Towards right side of engine .060"

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PISTON RINGS	215 / 245 / 265
Number of rings per piston (Two upper rings for compression, lower ring for oil control)	Three
Oil ring type	3 piece steel rail, chrome faced with stainless steel expander
Ring width:   Compression   Oil-steel rails	.1775" to .1875" .1500" to .1560"
Ring gap:   Compression   Oil-steel rails	.010" to .020" .015" to .055"
Service rings: Ring gap:   Compression   Oil-steel rails	.010" to .040" .015" to .060"
Ring side clearance:   Compression   Oil-steel rails	.0015" to .0040" .0000" to .0050"

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VALVES	215 / 245 / 265
INTAKE: Material	XK1340 Carbon Manganese Steel
Head diameter	1.835" to 1.845"       1.835" to 1.845"       1.960"
Overall length	4.964" to 4.999"
Std. stem diameter	.3720" to .3730"
Stem to guide clearance	.0010" to .0030"
Max. allowable clearance using "wobble method"	.017"
Valve face angle	45 to 45.5
Adjustment	None (Hydraulic)
Valve lift	.400"          .400"          .420"
EXHAUST Material	21-2N Nitrogen treated Manganese Chromium Nickel Steel with hardened tip welded to stem
Head diameter	1.500"       1.500"       1.600"
Overall length	4.985" to 5.010"
Std. stem diameter	.3710" to .3720"
Stem to guide clearance	.0010" to .0030"
Max. allowable clearance using "wobble method"	.017"
Valve face angle	47 to 47.5
Adjustment	None (Hydraulic)
Valve lift	.400"          .400"          .420"
Valves for service	STD., .005" and .015"

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VALVE SPRINGS	215 / 245 / 265
Number	Twelve
Free length   Optional E37 and E38 Engines	1.92" 2.08"
Load when compressed to 1.65"   (valve closed)   Optional E37 and E38 Engines	110 to 120 lbs. 108 to 118 lbs.
Load when compressed to 1.23"   (valve open)   Optional E37 and E38 Engines	209 to 223 lbs. 208 to 228 lbs.
Valve spring installed: Height	1-5/8" to 1-11/16"

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VALVE TIMING	215 / 245 / 265 (E37 & E48) / E38 / E49
Intake opens BTC	12          12          15          18          40
Intake closes ABC	56          56          61         75          88
Duration	248        248        256        272        308
Exhaust opens BBC	54          54          57          62          80
Exhaust closes ATC	12          12          15          30          48
Duration	244        244        252        272        308
Overlap	22          22          30          48          88

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CYLINDER HEAD	215 / 245 / 265
Valve seat run-out (max.)	.002"
Intake valve seat angle	44.5 to 45
Finished seat width	.080"
Exhaust valve seat angle	44.5 to 45
Finished seat width	.050"
Max. allowable gasket face "bowling" before refacing	.012"
Max. metal removal tolerance when refacing	.020"

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CYLINDER BLOCK	215 / 245 / 265
Bore size (std.)	3.520"        3.760"        3.910"
Max. ovality allowed	.005"
Max. taper allowed	.010"
Reconditioning limits	.001"
Max. oversize cylinder bore	+ .040"
Tappet bore diameter	.9050" to .9058"
Main tunnel bore diameter	2.6925" to 2.6933"
Main tunnel bore test bar diameter	2.6920" to 2.6918"
Optional E38 Engine	Stronger main bearing caps are used with longer bolts and a flat washer between the bolt and cap

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ENGINE LUBRICATION	215 / 245 / 265
Pump type	Rotary full pressure
Drive	Skew gear from camshaft
Operating pressure	40 to 70 p.s.i. @ 2,000 r.p.m.
Min. pressure drop for effective tappet function	15 p.s.i.
Pressure drop with clogged filter	7-9 p.s.i.
Oil filter type	Full flow - replacable - incorporating a non-return valve.

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