0395155 EXHAUST HOUSING ASSY. LONG JOHNSON
J20CRCCA, J20CRCDC, J20CRCUR, J25ECCM, J25ECDR, J25ECUA, J30ECCE, J30ECDM, J30ECOA, J30ECUB, J35RCCE, J35RCDM, J35RCUB
EXHAUST
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Compatible models:
BRP JOHNSON entire parts catalog list:
- MIDSECTION - ROPE START AND TILLER ELECTRIC » 0395155
- MIDSECTION - ROPE START (AC LIGHT) AND ELECTRIC START ONLY
J20CRCUR, J20CRLCUR, J20ECUR, J20ELCUR 1987
J25ECCM, J25ELCCM, J25RCCA, J25RLCCA, J25TECCA, J25TELCCA 1988
- MIDSECTION - ROPE START AND TILLER ELECTRIC
- MIDSECTION - ROPE START (AC LIGHT) AND ELECTRIC START ONLY
J25ECUA, J25ELCUA, J25RCUR, J25RLCUR, J25TECUR, J25TELCUR 1987
J30ECCE, J30ELCCE, J30RCCE, J30RLCCE, J30TECCE, J30TELCCE 1988
J30ECDM, J30ELCDM, J30RCDM, J30RLCDM, J30TECDM, J30TELCDM 1986
J30ECOA, J30ELCOA, J30RCOA, J30RLCOA, J30TECOA, J30TELCOA 1985
J30ECUB, J30ELCUB, J30RCUB, J30RLCUB, J30TECUB, J30TELCUB 1987
J35RCCE, J35RLCCE 1988
J35RCDM, J35RLCDM 1986
J35RCUB, J35RLCUB 1987
Information:
Required Tools
The following tool is required to perform this procedure:
Table 1
Tools Needed
Part Number Part Name Quantity
8H-8581 Feeler Gauge 1 Valve Lash Check
Measure the valve lash between the rocker arm and the valve bridge. Perform checks and adjustments with the engine stopped. Ensure that the valves are seated.An adjustment is not necessary if the measurement of the valve lash is in the acceptable range. Adjust the valve lash while the engine is stopped. The range is specified in Table 2.
Table 2
CG137 Engines
Engine Crankshaft Position Inlet Valves Exhaust Valves
CG137-8 and CG137-12 Valve Lash Check (Stopped Engine) 0.38 0.10 mm (0.015 0.004 inch) 1.02 0.10 mm (0.040 0.004 inch)
CG137-8 TC Compression Stroke(1) 1-2-5-7 1-3-4-8
TC Exhaust Stroke(2) 3-4-6-8 2-5-6-7
Firing Order 1-8-4-3-6-5-7-2(3)
CG137-12 TC Compression Stroke(1) 1-3-4-6-7-12 1-4-5-8-9-12
TC Exhaust Stroke(2) 2-5-8-9-10-11 2-3-6-7-10-11
Firing Order 1-4-9-8-5-2-11-10-3-6-7-12(3)
(1) Engine pinned at the position for No. 1 cylinder
(2) Engine pinned at 360° from the TC compression stroke
(3) The No. 1 cylinder is at the front left side of the engine.If the measurement is not within this range, adjustment is necessary.Valve Bridge Adjustment
When the head is disassembled, mark the valve bridges for the respective cylinders. Adjustment of the bridge will be necessary after grinding the valves or other reconditioning of the cylinder head.The valve bridge must be adjusted before the valve lash is adjusted. The valve bridge can be adjusted without removing the rocker arms and shafts.
Illustration 1 g02624596
Location of the valve components for valve bridge adjustment (left front side engine view)
(1) Ignition transformer
(2) Rocker arm
(3) Valve bridge
(4) Adjusting screw
(5) Locknut
(6) Bridge dowel Use the following procedure to adjust the valve bridges:
Remove the valve cover.
Ensure that the No. 1 piston is at the top center (TC) position. Refer to Testing and Adjusting, "Finding the Top Center Position for No. 1 Piston".
Work on the appropriate cylinders that are listed in Table 2.
Disconnect ignition transformer (1) from the ignition harness at the connector.
Remove the transformer from the cylinder head. Note: If the cylinder head is disassembled, keep the valve bridges with the respective valves. Check that bridge dowel (6) is installed to the correct height. Lubricate the bridge dowel, the bore for the bridge dowel, and the top contact surface of the valve bridge. Install the valve bridge on the dowel.
Loosen locknut (5) and adjusting screw (4).
Press straight down on rocker arm (2) at the contact point for valve bridge (3). Turn the adjusting screw clockwise until the screw just contacts the valve stem.
Turn the adjusting screw clockwise for an additional 25 5 degrees. The additional turn will straighten the valve bridge onto the dowel and compensate for slack in the threads of the adjustment screw.
Hold the adjusting screw in position and the tighten locknut to 30 4 N m (22 3 lb ft).
Ensure that the valve lash is correct. Refer to "Valve Lash Check". If necessary, set the valve lash to the correct tolerance. Refer to "Valve Lash Adjustment".
Install the transformer into the cylinder head.
Connect the ignition harness.
Install the valve cover. Valve Lash Adjustment
The valve bridge must be adjusted before the valve lash is adjusted.
Illustration 2 g02625361
Location of the valve components for valve bridge adjustment (left front side engine view)
(1) Ignition transformer
(2) Adjusting screw
(3) Locknut
(4) Rocker arm
(5) Valve bridge
Ensure that the No. 1 piston is at the top center (TC) position. Refer to Testing and Adjusting, "Finding the Top Center Position for No. 1 Piston".
Work on the appropriate cylinders that are listed in Table 2.
Disconnect ignition transformer (1) from the ignition harness at the connector.
Remove the transformer from the cylinder head.
Loosen locknut (3) and adjusting screw (2).
Insert the appropriate feeler gauge between rocker arm (4) and the wear seat of valve bridge (5). Refer to Table 3.
Table 3
Valve Lash Setting: Engine Stopped
Inlet 0.38 0.10 mm (0.015 0.004 inch)
Exhaust 1.02 0.10 mm (0.040 0.004 inch)
Hold the adjusting screw in place and tighten the locknut to a torque of 30 4 N m (22 3 lb ft).
Verify that the setting is correct.
Remove the timing b
The following tool is required to perform this procedure:
Table 1
Tools Needed
Part Number Part Name Quantity
8H-8581 Feeler Gauge 1 Valve Lash Check
Measure the valve lash between the rocker arm and the valve bridge. Perform checks and adjustments with the engine stopped. Ensure that the valves are seated.An adjustment is not necessary if the measurement of the valve lash is in the acceptable range. Adjust the valve lash while the engine is stopped. The range is specified in Table 2.
Table 2
CG137 Engines
Engine Crankshaft Position Inlet Valves Exhaust Valves
CG137-8 and CG137-12 Valve Lash Check (Stopped Engine) 0.38 0.10 mm (0.015 0.004 inch) 1.02 0.10 mm (0.040 0.004 inch)
CG137-8 TC Compression Stroke(1) 1-2-5-7 1-3-4-8
TC Exhaust Stroke(2) 3-4-6-8 2-5-6-7
Firing Order 1-8-4-3-6-5-7-2(3)
CG137-12 TC Compression Stroke(1) 1-3-4-6-7-12 1-4-5-8-9-12
TC Exhaust Stroke(2) 2-5-8-9-10-11 2-3-6-7-10-11
Firing Order 1-4-9-8-5-2-11-10-3-6-7-12(3)
(1) Engine pinned at the position for No. 1 cylinder
(2) Engine pinned at 360° from the TC compression stroke
(3) The No. 1 cylinder is at the front left side of the engine.If the measurement is not within this range, adjustment is necessary.Valve Bridge Adjustment
When the head is disassembled, mark the valve bridges for the respective cylinders. Adjustment of the bridge will be necessary after grinding the valves or other reconditioning of the cylinder head.The valve bridge must be adjusted before the valve lash is adjusted. The valve bridge can be adjusted without removing the rocker arms and shafts.
Illustration 1 g02624596
Location of the valve components for valve bridge adjustment (left front side engine view)
(1) Ignition transformer
(2) Rocker arm
(3) Valve bridge
(4) Adjusting screw
(5) Locknut
(6) Bridge dowel Use the following procedure to adjust the valve bridges:
Remove the valve cover.
Ensure that the No. 1 piston is at the top center (TC) position. Refer to Testing and Adjusting, "Finding the Top Center Position for No. 1 Piston".
Work on the appropriate cylinders that are listed in Table 2.
Disconnect ignition transformer (1) from the ignition harness at the connector.
Remove the transformer from the cylinder head. Note: If the cylinder head is disassembled, keep the valve bridges with the respective valves. Check that bridge dowel (6) is installed to the correct height. Lubricate the bridge dowel, the bore for the bridge dowel, and the top contact surface of the valve bridge. Install the valve bridge on the dowel.
Loosen locknut (5) and adjusting screw (4).
Press straight down on rocker arm (2) at the contact point for valve bridge (3). Turn the adjusting screw clockwise until the screw just contacts the valve stem.
Turn the adjusting screw clockwise for an additional 25 5 degrees. The additional turn will straighten the valve bridge onto the dowel and compensate for slack in the threads of the adjustment screw.
Hold the adjusting screw in position and the tighten locknut to 30 4 N m (22 3 lb ft).
Ensure that the valve lash is correct. Refer to "Valve Lash Check". If necessary, set the valve lash to the correct tolerance. Refer to "Valve Lash Adjustment".
Install the transformer into the cylinder head.
Connect the ignition harness.
Install the valve cover. Valve Lash Adjustment
The valve bridge must be adjusted before the valve lash is adjusted.
Illustration 2 g02625361
Location of the valve components for valve bridge adjustment (left front side engine view)
(1) Ignition transformer
(2) Adjusting screw
(3) Locknut
(4) Rocker arm
(5) Valve bridge
Ensure that the No. 1 piston is at the top center (TC) position. Refer to Testing and Adjusting, "Finding the Top Center Position for No. 1 Piston".
Work on the appropriate cylinders that are listed in Table 2.
Disconnect ignition transformer (1) from the ignition harness at the connector.
Remove the transformer from the cylinder head.
Loosen locknut (3) and adjusting screw (2).
Insert the appropriate feeler gauge between rocker arm (4) and the wear seat of valve bridge (5). Refer to Table 3.
Table 3
Valve Lash Setting: Engine Stopped
Inlet 0.38 0.10 mm (0.015 0.004 inch)
Exhaust 1.02 0.10 mm (0.040 0.004 inch)
Hold the adjusting screw in place and tighten the locknut to a torque of 30 4 N m (22 3 lb ft).
Verify that the setting is correct.
Remove the timing b
Parts exhaust JOHNSON:
0324322
0324322 EXHAUST COVER,Inner
25E79R, 35E79A, D25RWA, J20CRCCA, J20CRCDC, J20CRCOS, J20CRCUR, J25ECCM, J25ECDR, J25ECIB, J25ECNE, J25ECOC, J25ECRS, J25ECTD, J25ECUA, J25RCSA, J25RSA, J25RSLS, J25RWCDC, J25RWCOS, J25RWCRD, J25RWCUR, J28ELCDS, J28ELCDS, J28ESLCCR, J28ESLCCR, J28ESL
0391465
0391465 EXHAUST COVER, Outer
BJ20SEECB, BJ20SEEDA, BJ20SEEUM, BJ20SRECB, BJ20SREDA, BJ20SREUM, BJ25BAECM, BJ25BAEDR, BJ25BAEUA, BJ25EECE, BJ25EEDM, BJ25EEED, BJ25EEUB, BJ25ELSIC, BJ25ELSSS, BJ30BAECS, BJ30BAEDE, BJ30BAEEC, BJ30BAEUD, BJ30EECS, BJ30EEDE, BJ30EEEC, BJ30EEUD, BJ30E
0326263
0326263 EXHAUST COVER, Inner
BJ20SEECB, BJ20SEEDA, BJ20SEEUM, BJ20SRECB, BJ20SREDA, BJ20SREUM, BJ25BAECM, BJ25BAEDR, BJ25BAEUA, BJ25EECE, BJ25EEDM, BJ25EEED, BJ25EEUB, BJ25ELSIC, BJ25ELSSS, BJ30BAECS, BJ30BAEDE, BJ30BAEEC, BJ30BAEUD, BJ30EECS, BJ30EEDE, BJ30EEEC, BJ30EEUD, BJ30E
0395157
0395157 EXHAUST HOUSING ASSY.
J20CRCCA, J20CRCDC, J20CRCOS, J20CRCUR, J25ECCM, J25ECDR, J25ECOC, J25ECUA, J30ECCE, J30ECDM, J30ECOA, J30ECUB, J35RCCE, J35RCDM, J35RCUB
0330547
0330547 EXHAUST TUBE, Inner
J20CRCDC, J20CRCOS, J25ECDR, J25ECOC, J25RWCDC, J25RWCOS, J30ECDM, J30ECOA, J35RCDM
0330648
0330648 EXHAUST TUBE, Inner
D25RWA, J20CRCCA, J20CRCUR, J25ECCM, J25ECUA, J25RWCUR, J28ELCDS, J28ELCDS, J28ESLCCR, J28ESLCCR, J28ESLCUC, J28ESLCUC, J30ECCE, J30ECUB, J35RCCE, J35RCUB