0388672 PISTON,.020 o.s.,115,140hp EVINRUDE
100990S, 115790S, 115793S, 115890C, 150840S, 175740S
PISTON

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Rating:
BRP EVINRUDE entire parts catalog list:
- CRANKSHAFT & PISTON » 0388672
115793S, 115799S, 85793S, 85799S 1977
115890C, 115893C, 115899C, 140840C, 140843C, 140883C, 85890C, 85895C, 85899C 1978
150840S, 150849S, 175840C, 175840S, 200840R, 200849R, 235840R, 235849R 1978
175740S, 175749S, 200740C, 200749C 1977
Information:
Specifications
Table 1
Inlet Valves Exhaust Valves
Valve Lash (Stopped Engine) 0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
TC Compression Stroke 1 and 2 1 and 3
TC Exhaust Stroke (1) 3 and 4 2 and 4
Firing Order 1,3,4,2 (2)
( 1 ) 360° from TC compression stroke
( 2 ) The No. 1 cylinder is at the front of the engine.
Table 2
TC Compression Stroke Inlet Valves Exhaust Valves
Valve Lash
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
Cylinders 1 and 2 1 and 3
Table 3
TC Exhaust Stroke (3) Inlet Valves Exhaust Valve
Valve Lash
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
Cylinders 3 and 4 2 and 4
( 3 ) Position for No. 1 cylinder
Table 4
Torque for Adjustment Locknut
27 N m (20 lb ft) Introduction
Refer to Specifications, "Engine Design" for the location of the cylinder valves.If the valve lash requires adjustment several times in a short period of time, excessive wear exists in a different part of the engine. Find the problem and make necessary repairs in order to prevent more damage to the engine.Not enough valve lash can be the cause of rapid wear of the camshaft and valve lifters. Not enough valve lash can indicate that the seats for the valves are worn.Valves become worn due to the following causes:
Fuel injection nozzles that operate incorrectly
Excessive dirt and oil are present on the filters for the inlet air.
Incorrect fuel settings on the fuel injection pump.
The load capacity of the engine is frequently exceeded.Too much valve lash can cause broken valve stems, springs, and spring retainers. Too much valve lash can be an indication of the following problems:
Worn camshaft and valve lifters
Worn rocker arms
Bent pushrods
Broken socket on the upper end of a pushrod
Loose adjustment screw for the valve lashIf the camshaft and valve lifters show rapid wear, look for fuel in the lubrication oil or dirty lubrication oil as a possible cause.Check Procedure
Valve Lash Check
An adjustment is NOT NECESSARY if the measurement of the valve lash is in the acceptable range. Check the valve lash while the engine is stopped. The temperature of the engine does not change the valve lash setting.
Table 5
Inlet Valves Exhaust Valves
Valve Lash (Stopped Engine)
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
TC Compression Stroke 1 and 2 1 and 3
TC Exhaust Stroke (1) 3 and 4 2 and 4
Firing Order 1,3,4,2 (2)
( 1 ) 360° from TC compression stroke
( 2 ) The No. 1 cylinder is at the front of the engine.If the measurement is not within the acceptable clearance, adjustment is necessary.Adjustment Procedure
Valve Lash Adjustment
Note: The No. 1 cylinder is at the front of the engine.
Illustration 1 g00323903
Setting the valve lash (1) Adjustment screw (2) Feeler gauge
Table 1
Inlet Valves Exhaust Valves
Valve Lash (Stopped Engine) 0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
TC Compression Stroke 1 and 2 1 and 3
TC Exhaust Stroke (1) 3 and 4 2 and 4
Firing Order 1,3,4,2 (2)
( 1 ) 360° from TC compression stroke
( 2 ) The No. 1 cylinder is at the front of the engine.
Table 2
TC Compression Stroke Inlet Valves Exhaust Valves
Valve Lash
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
Cylinders 1 and 2 1 and 3
Table 3
TC Exhaust Stroke (3) Inlet Valves Exhaust Valve
Valve Lash
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
Cylinders 3 and 4 2 and 4
( 3 ) Position for No. 1 cylinder
Table 4
Torque for Adjustment Locknut
27 N m (20 lb ft) Introduction
Refer to Specifications, "Engine Design" for the location of the cylinder valves.If the valve lash requires adjustment several times in a short period of time, excessive wear exists in a different part of the engine. Find the problem and make necessary repairs in order to prevent more damage to the engine.Not enough valve lash can be the cause of rapid wear of the camshaft and valve lifters. Not enough valve lash can indicate that the seats for the valves are worn.Valves become worn due to the following causes:
Fuel injection nozzles that operate incorrectly
Excessive dirt and oil are present on the filters for the inlet air.
Incorrect fuel settings on the fuel injection pump.
The load capacity of the engine is frequently exceeded.Too much valve lash can cause broken valve stems, springs, and spring retainers. Too much valve lash can be an indication of the following problems:
Worn camshaft and valve lifters
Worn rocker arms
Bent pushrods
Broken socket on the upper end of a pushrod
Loose adjustment screw for the valve lashIf the camshaft and valve lifters show rapid wear, look for fuel in the lubrication oil or dirty lubrication oil as a possible cause.Check Procedure
Valve Lash Check
An adjustment is NOT NECESSARY if the measurement of the valve lash is in the acceptable range. Check the valve lash while the engine is stopped. The temperature of the engine does not change the valve lash setting.
Table 5
Inlet Valves Exhaust Valves
Valve Lash (Stopped Engine)
0.20 mm (0.008 inch)
0.45 mm (0.018 inch)
TC Compression Stroke 1 and 2 1 and 3
TC Exhaust Stroke (1) 3 and 4 2 and 4
Firing Order 1,3,4,2 (2)
( 1 ) 360° from TC compression stroke
( 2 ) The No. 1 cylinder is at the front of the engine.If the measurement is not within the acceptable clearance, adjustment is necessary.Adjustment Procedure
Valve Lash Adjustment
Note: The No. 1 cylinder is at the front of the engine.
Illustration 1 g00323903
Setting the valve lash (1) Adjustment screw (2) Feeler gauge
Parts piston EVINRUDE:
0320137
0320137 PISTON,Shift assy.
115593, 115693D, 115790S, 115793S, 135543E, 135643D, 150840S, 175740S, 200640S, 85593E, 85693D
0387587
0387587 PISTON HEAD ASSY.
100990S, 115790S, 115890C, 150840S, 150940C, 175740S, 200640S, C155WTLM, E100MLCSC, E100WMLCDR, E100WMLCOC, E100WMLCRS, E100WTLCUA, E110MLCDC, E110MLCUR, E115MLCIH, E115MLCNB, E115MLCOS, E115MLCRD, E115MLCSA, E115MLCTE, E120TLCCA, E120TLCDC, E120TLCO
0388673
0388671
0388315
0322724
0322724 PISTON AND ROD ASSY.,Trim cylinder
100990S, 115790S, 115890C, 150840S, 150940C, 175740S, BE250CXECB, BE250CXEDA, BE250CXEUM, C155WTLM, CE275TLCDC, CE275TLCOS, CE300TLCDC, CE300TLCOS, E100MLCSC, E100STLCCA, E100STLCEM, E100STLESB, E100WMLCDR, E100WMLCOC, E100WMLCRS, E100WTLCUA, E100WTL
0390000
0390000 . . PISTON ASSY
100990S, 115890C, 150840S, 150940C, C155WTLM, E100MLCSC, E100STLCCA, E100STLESB, E100WMLCDR, E100WMLCOC, E100WMLCRS, E100WTLCUA, E100WTLEDR, E100WTLEIB, E100WTLENE, E100WTLEOC, E100WTLERS, E100WTLESM, E100WTLETD, E100WTLEUA, E100WTLZ, E110MLCCA, E110
0323848
0323848 PISTON, Pump control
100990S, 115890C, 150840S, 150940C, BE250CXECB, BE250CXEDA, BE250CXEUM, C155WTLM, CE275TLCDC, CE275TLCOS, CE300TLCDC, CE300TLCOS, E100MLCSC, E100STLCCA, E100STLCEM, E100STLESB, E100WMLCDR, E100WMLCOC, E100WMLCRS, E100WTLCUA, E100WTLEDR, E100WTLEIB, E