FREE SHIPPING ON ONLINE ORDERS OVER $98.00 + NO SALES TAX (EXCLUDES SC) See Details

L6-226 Engine Specs - Wagon

L6-226 engine illustration shown for reference only - click here to shop for these parts by interactive diagram

L6-226 Engine Diagram

Looking for L6-226 Engine parts for your vintage Willys or Jeep? Search Engine by Category or by Diagram

Engine: Metric
Type L-Head ......
Number of Cylinders 6 ......
Bore 3 5/16" 8,13 mm.
Stroke 4 3/8" 111,12 mm.
Piston Displacement 226.2 cu. In. 3707 cm3
Bore Spacing (center to center): 3.876" 98,450 mm.
Firing Order 1-5-3-6-2-4  
Compression Ratio:  
Standard 6.86 to 1 6,86 a 1
Optional 7.3 to 1 7,3 a 1
Compression Pressure 125 to 140 psi. ......
Horsepower (SAE) 26.33 26,33
Horsepower (max. brake) 105 @ 3600 rpm. ......
Maximum Torque @ 1400 rpm 190 lb-ft. 26,27 kg-rn.
Idle Speed 550 rpm. ......
Governor Speed (optional):  
Velocity 2200 to 3800 rpm. ......
Centrifugal 1000 to 2600 rpm. ......
Pistons:  
Material Aluminum Allowy ......
Description Carn Ground, T-Slot, Tin Plated ......
Length 3 17/32" 8,96 cm.
Clearance Limits:  
Top Land .020" to .030" 0,508 a 0, 762 mm .
Skirt .0007" to .0017" 0,0177 a 0,0431 mm.
Skirt Bottom Selective Feeler Fit ......
Ring Groove Depth:  
No. 1 and No. 2 Rings .1860" to .1922" 4, 7244 a 4,8819 mm .
No. 3 and No. 4 Rings .1920" to 1982" 4,8768 a 5,0343 mm.
Ring Groove Width:  
No. 1 Ring .955" to .0965" 2,4257 a 2,4511 mm.
No. 2 Ring .095" to.096" 2,413 a 2,438 mm.
No. 3 Ring .1565" to .1575" 3,9751 a 4,0005 mm.
No. 4 Ring .1575" to .1585" 4,0005 a 4,0259 mm.
Piston Rings: Function  
No. 1 and No. 2 Rings Compression ......
No. 3 and No. 4 Rings Oil ......
Material:  
No. 1 Ring Cast Iron, Chrome-Plated Face ......
No. 2 Ring Cast Iron ......
No. 3 Ring Steel, Chrome-Plated Face ......
No. 4 Ring Cast Iron ......
Width:  
No. 1 and No. 2 Rings .0930" to .0935" 2,3622 a 2,3749 mm.
No. 3 and No. 4 Rings .1545" to .1550" 3,9243 a 3,9370 mm.
Gap .008" to .16" 0,203 a 0,406 mm.
Thickness:  
No. 1 and No. 2 Rings .156" to .166" 3,962 a 4,216 mm.
No. 3 and No. 4 Rings .142" to .152" 3,607 a 3,861 mm.
Side Clearance:  
No. 1 and No. 2 Rings .002" to .004" 0,051 a 0,102 mm.
No. 3 and No. 4 Rings .006" to .010" 0,152 a 0,254 mm.
Piston Pins:  
Material SAE 1019 Steel ......
Length 2.779" 70,58 mm.
Diameter .8592" 21,82 mm.
Type Floating ......
Bushing Bronze; in Rod ......
Clearance:  
In Piston (selective fit) .0002" 0,0051 mm.
In Rod .0004" to .0008" 0,0102 a 0,0203 mm.
Connecting Rods:  
Material SAE 1035 Forged Steel ......
Weight 29.6 oz. 839 gr.
Length (center to center) 7.000" 1,778 mm.
Bearing:  
Type Removable ......
Material Steel-backed Matrex ......
Over All Length 1.125" 28,575 mm.
Clearance Limits .0007" to .0025" 0,0178 a 0,0635 mm.
End Play .006" to .011" 0,125 a 0,279 mm.
Installation From Above ......
Bore:  
Upper .913" to .914" 23,190 a 23,217 mm.
Lower 2.1865" to 2.1870" 55,5371 a 55,5498 mm.
Crankshaft:  
Material SAE 1045 Forged Steel ......
Vibration Damper Type Tuned ......
End Thrust Taken By Rear Bearing ......
Main Bearings:  
Type Removable ......
Material Steel-backed Matrex ......
Clearance .0008" to .0028" 0,0203 a 0,0711 mm.
Journal Diameter 2.374" to 2.375" 60,300 a 60,325 mm.
Bearing Length:  
Front 1.062" 26,975 mm.
No. 2 Ring 1.250" 31,750 mm.
No. 3 1.250" 31,750 mm.
No. 4 Ring 1.321" 33,553 mm.
Crankpin Journal Diameter 2.0623" 52,3824 mm.
Flywheel Run Out (max.) .005" 0,127 mm.
Camshaft: Bearings  
Material Steel-backed Babbitt ......
Number 4 ......
Clearance .001" to .003" 0,025 a 0,076 mm.
Journal Diameter:  
Front 1.8730" 47,57 mm.
Front Intermediate 1.8100" 45,97 mm.
Rear Intermediate 1.7478" 44,39 mm.
Rear 1.2480" 31,69 mm.
Bearing Diagameter:  
Front 1.8745" to 1.8755" 47,6123 a 47,6377 mm.
Front Intermediate 1.8115" to 1.8125 " 46,0121 a 46,0375 mm.
Rear Intermediate 1.7495" to 1.7502" 44,4373 a 44,4551 mm.
Rear 1.2495" to 1.2505" 31,7373 a 31,7637 mm.
End Play .003" to .007" 0,076 a 0,178 mm.
Drive:  
Type Chain ......
Crankshaft Sprocket SAE 1018 Steel ......
Camshaft Sprocket Cast Iron ......
Timing Chain:  
Number of Links 46 ......
Number of Links 46 ......
Width:  
Early 1.000" 25,400 mm.
Late .875" 22,225 mm.
Pitch .500" 0,127 mm.
Valve Systems:  
Valve Rotators On Exhaust Valves ......
Valve Rotators On Exhaust Valves ......
Tappets (Intake and Exhaust)  
Clearance - Cold .014" 0,355 mm.
Clearance for Timing .0175" 0,4445 mm.
Over All Length 1.89" 48,01 mm.
Stem Diameter .6860" to .6855: 17,4244 a 17,4117 mm.
Clearance in Block Select Fit with Slight Drag ......
Timing: Intake  
Opens 2° BTC ......
Closes 42° ABC ......
Duration 224° ......
Timing: Exhaust  
Opens 42° BBC ......
Closes 8° ATC ......
Duration 230° ......
Valve Opening Overlap 10° ......
Valve Opening Overlap 10° ......
Valves: Intake  
Material Silchrome No. 1 Steel .....
Over All Length 5.187" 131,750 mm.
Head Diameter 1.520" 38,608 mm.
Angle of Seat 30° .....
Stem Diameter .3402" to .3410" 8,6411 a 8,6614 mm.
Stem-to-Guide Clearance .0012" to .0030" 0,0305 a 0,0762 mm.
Lift .284" 7,214 mm.
Valves: Exhaust  
Material Silchrome XCR Steel, Hard Face .....
Over All Length 5.205" 132,207 mm.
Head Diameter 1.328" 33,731 mm.
Angle of Seat 45° .....
Seat Insert Material Eatonite EMS 58 .....
Stem Diameter .3382" to .3390" 8,5903 a 8,6106 mm.
Stem-to-Guide Clearance .0032" to .0050" 0,0813 a 0,1270 mm.
Lift .284" 7,214 mm.
Springs (Intake and Exhaust):  
Free Length 1 31/32" 50 mm.
Pressure @ Length:  
Valve Closed 51 lb. @ 1.672" 3,6 kg-cm² - 42,469 mm.
Valve Open 107 lb @ 1.312" 7 ,5 kg-cm² - 33,325 mm.
Lubrication System:  
Type of Lubrication:  
Main Bearings Pressure .....
Connecting Rods Pressure .....
Piston Pins Splash .....
Camshaft Bearings Pressure .....
Tappets Pressure .....
Timing Chain Nozzle .....
Cylinder Walls Nozzle .....
Oil Pump:  
Type Gear .....
Drive From Camshaft .....
Minimum Safe Oil Pressure 6 lb.@ Idle 0,4 kg-cm²
Minimum Safe Oil Pressure 6 lb.@ Idle 0,4 kg-cm²
Maximum Safe Oil Pressure 20 lb. @2000 rpm. (35 mph.) 1,4 kg-cm² - 56 kph.
Normal Oil Pressure 35 lb. @ 1700 rpm. 2,5 kg-cm²
Oil Pressure Sending Unit Electric .....
Oil Intake Floating .....
Oil Filter System Partial Flow .....

* Exerpt from the Service Manual for Jeep Utility Vehicles, pages 59-61