5030261 JOHNSON GASKET, Exhaust housing


5030261 GASKET, Exhaust housing JOHNSON J5RECS, J5REEC, J5RLSIM, J5RLSSA GASKET
5030261 GASKET, Exhaust housing JOHNSON
Rating:
8

Buy GASKET, Exhaust housing 5030261 JOHNSON genuine, new aftermarket parts with delivery
Number on catalog scheme: 3
 

Compatible models:

BRP JOHNSON entire parts catalog list:

J5RECS, J5RLECS 1998
J5REEC, J5RLEEC 1999
J5RLSIM, J5RSIM, J5RVLSIM, J5RVSIM 2001
J5RLSSA, J5RSSA 2000

Information:


Illustration 1 g02203053
Disassembling sequence (1) Rocker cover (2) Adjusting screw (3) Bolt (short) (4) Bolt (long) (5) Valve cap (6) Snap ring (7) Rocker arm (8) Rocket shaft bracket (9) Rocket shaft spring (10) Rocket shaft (11) Push rod (12) Cylinder head bolt (13) Cylinder head (14) Valve cotter (15) Valve retainer (16) Valve spring (17) Inlet valve (18) Exhaust valve (19) Valve stem seal (20) Cylinder head gasketRemoving rocker shaft assembly
Note: Always loosen shorter bolts first. Failing to do so may damage the rocker shaft bracket.
Illustration 2 g02203033
Loosen the rocker arm adjusting screws by rotating about one turn.
Loosen the shorter rocker bracket bolts first.
Then, loosen the longer rocker bracket bolts.
Remove the rocker bracket bolts, and remove the rocker shaft assembly from the cylinder head.
Remove push rods.Disassembling rocker shaft assembly
Illustration 3 g02203034
Be sure to arrange the parts in order during disassembly. Keep the original combination of rocker arm and shaft assembly, and when reassembling. Make sure to install the rocker arm and shaft assembly in the original positions to restore the same clearance between the rocker shaft and rocker arm.
Do not remove the rocker bushing unless rocker bushing is defective or its inside diameter exceeds the limit.Removing cylinder head assembly
Note: When removing the cylinder head gasket, be careful not to damage the cylinder head or crankcase surface by tools such as a screwdriver.
Illustration 4 g02203035
Remove the cylinder head bolt.
Remove the cylinder head assembly by lifting cylinder head assembly up.Note: If the cylinder head assembly cannot be removed due to crimping of the cylinder head gasket. Tap the thick area on the side of the cylinder head using a plastic hammer to give a shock.
Remove the gasket from the cylinder head.Note: If there is a cylinder head problem, check the bolts for tightness with a torque wrench before removing the cylinder head bolts.Removing valve and valve spring
Illustration 5 g02203036
Using a valve spring pusher, compress the valve spring evenly and remove the valve cotters.Note: If valves are reusable, mark each valve seat and the mating valve guide for identifying the original positions. Do not mix valve seats with other valve guides.Removing valve stem seal
Illustration 6 g02203037
Grab the stem seal with pliers and remove.Note: Be sure to replace the stem seal with the new one when reassembling the valve and valve spring.Cleaning cylinder head bottom surface
Illustration 7 g02203038
Taking care not to damage the cylinder head bottom surface, remove residue of old gasket.Note: First, roughly scrape off residue of old gasket using a scraper. Then, grind off the remaining residue using an engine-oil immersed oil stone.Measuring piston protrusion
Note: Piston protrusion must always meet the standard. The amount of protrusion not only influences on the engine performance, but also it is important to prevent valve interference.
Illustration 8 g02203039
Measure the protrusion of each piston following the instructions below. If the measured value exceeds the limit, inspect and repair each bearings.
Search the top dead center of the piston by using dial gauge.
Apply the dial gauge plunger to the top surface of the crankcase, and zero the dial gauge.
Measure the protrusion at three points on the piston head, and calculate the mean value. Subtract the mean value from the thickness of the gasket compressed by tightening the cylinder head. The clearance between the piston top and cylinder head will be determined.
Table 1
Item     Standard Dimension    
Piston protrusion (A)    
0.130 to 0.600 mm (0.0051 to 0.0236 inch)    
Compressed thickness of cylinder head gasket    
1.270 to 1.370 mm (0.0500 to 0.0539 inch)    


Parts gasket JOHNSON:

5031036
 
5031036 GASKET, Float chamber
J4R4SRC, J4R4STS, J5R4SRC, J5R4STS, J5RECS, J5REEC, J5RLSIM, J5RLSSA
5031037
 
5031037 GASKET, Bolt
J4R4SRC, J4R4STS, J5R4SRC, J5R4STS, J5RECS, J5REEC, J5RLSIM, J5RLSSA
5031047
GASKET, Carburetor
5031047 GASKET, Carburetor
J5RECS, J5REEC, J5RLSIM, J5RLSSA
5030146
GASKET, Cylinder head
5030146 GASKET, Cylinder head
J5RECS, J5REEC, J5RLSIM, J5RLSSA
5030148
 
5030148 GASKET, Water cover
J5RECS, J5REEC, J5RLSIM, J5RLSSA
5030335
GASKET, Filter
5030335 GASKET, Filter
J4R4SDA, J4R4SOR, J4R4SRC, J4R4STS, J4R4SUM, J5R4SDA, J5R4SOR, J5R4SRC, J5R4STS, J5R4SUM, J5RECS, J5REEC, J5RLSIM, J5RLSSA, J6R4SDC, J6R4SOS, J6R4SUR
5030072
 
5030072 GASKET, Tank cap
J2R4SDS, J2R4SUC, J4R4SDA, J4R4SOR, J4R4SRC, J4R4STS, J4R4SUM, J5R4SDA, J5R4SOR, J5R4SRC, J5R4STS, J5R4SUM, J5RECS, J5REEC, J5RLSIM, J5RLSSA, J6R4SDC, J6R4SOS, J6R4SUR
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