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Video & Articles: Appliance & Equipment RepairBriggs & Stratton Riding Mower Engine Flywheel Key #591757
Briggs & Stratton Riding Mower Engine Flywheel Key #591757
Skill Level
Total Parts Cost
$5.34Estimated Savings
$112.5004:34
- Description
This video provides step-by-step repair instructions for replacing the flywheel key on a Briggs & Stratton small engine (commonly found on riding lawn mowers). The most common reason for replacing the flywheel key is when it is bent or damaged, causing the engine to run poorly and possibly quit after a few seconds.
All of the information for this flywheel key replacement video is applicable to the following brands:
Briggs & Stratton
Tools needed: 1/4 inch socket or nut driver, 3/8th inch socket or nut driver, flat-head screwdriver, 15/16th inch socket and pipe wrench, flywheel puller, torque wrench
All of the information for this flywheel key replacement video is applicable to the following brands:
Briggs & Stratton
Tools needed: 1/4 inch socket or nut driver, 3/8th inch socket or nut driver, flat-head screwdriver, 15/16th inch socket and pipe wrench, flywheel puller, torque wrench
Step By Step Instructions
1
Before you replace the flywheel key in your engine, make sure the engine has cooled, the ignition switch is in the off position, and the key has been removed if applicable.
2
If necessary, disconnect the headlight wire harness.
3
Then, lift up the hood or engine cover and detach it.
4
Now, rotate the air filter cover retaining knobs counterclockwise and pull off the cover.
5
Lift out the air filter.
6
Use a quarter-inch socket or nut driver to unthread the screw inside the filter housing.
7
Now, use a 3/8 inch socket or wrench to unthread the four blower housing mounting bolts.
8
Detach the oil drain tube and lift off the blower housing.
9
Use a flathead screwdriver to pry off the screen assembly cap.
10
Next, use a pipe wrench to secure the drive pulley and a fifteen-sixteenth inch socket to unthread the flywheel mounting bolt.
11
Remove the bolt and lift off the screen assembly and washer.
12
Lift off the flywheel fan.
13
Rethread the bolt and use a flywheel puller to help detach the flywheel.
14
Unthread the bolt and lift off the flywheel.
15
Remove the old flywheel key if still intact.
16
Before you install the new key, reposition the flywheel, aligning the notch in the flywheel with the slot in the crankshaft.
17
Now, insert the key into the slot and push it into place.
18
Realign the flywheel fan.
19
Replace the screen assembly.
20
Make sure the washer is in place, then rethread the flywheel mounting bolt.
21
Torque the bolt to one hundred foot-pounds.
22
Snap the cap into place.
23
Reposition the blower housing.
24
Make sure the housing is properly seated on the air diverter.
25
Rethread and tighten the mounting bolts to secure the housing.
26
The longer bolts go in the back.
27
Replace the screw in the filter housing.
28
Reposition the air filter.
29
Realign the cover and rotate the retaining knobs clockwise to secure.
30
Reattach the oil drain tube to the blower housing.
31
Reinstall the hood or engine cover and reconnect the headlight wire harness if applicable.
Description
This video provides step-by-step repair instructions for replacing the flywheel key on a Briggs & Stratton small engine (commonly found on riding lawn mowers). The most common reason for replacing the flywheel key is when it is bent or damaged, causing the engine to run poorly and possibly quit after a few seconds.
All of the information for this flywheel key replacement video is applicable to the following brands:
Briggs & Stratton
Tools needed: 1/4 inch socket or nut driver, 3/8th inch socket or nut driver, flat-head screwdriver, 15/16th inch socket and pipe wrench, flywheel puller, torque wrench
All of the information for this flywheel key replacement video is applicable to the following brands:
Briggs & Stratton
Tools needed: 1/4 inch socket or nut driver, 3/8th inch socket or nut driver, flat-head screwdriver, 15/16th inch socket and pipe wrench, flywheel puller, torque wrench
Step-By-Step Instructions
1
Before you replace the flywheel key in your engine, make sure the engine has cooled, the ignition switch is in the off position, and the key has been removed if applicable.
2
If necessary, disconnect the headlight wire harness.
3
Then, lift up the hood or engine cover and detach it.
4
Now, rotate the air filter cover retaining knobs counterclockwise and pull off the cover.
5
Lift out the air filter.
6
Use a quarter-inch socket or nut driver to unthread the screw inside the filter housing.
7
Now, use a 3/8 inch socket or wrench to unthread the four blower housing mounting bolts.
8
Detach the oil drain tube and lift off the blower housing.
9
Use a flathead screwdriver to pry off the screen assembly cap.
10
Next, use a pipe wrench to secure the drive pulley and a fifteen-sixteenth inch socket to unthread the flywheel mounting bolt.
11
Remove the bolt and lift off the screen assembly and washer.
12
Lift off the flywheel fan.
13
Rethread the bolt and use a flywheel puller to help detach the flywheel.
14
Unthread the bolt and lift off the flywheel.
15
Remove the old flywheel key if still intact.
16
Before you install the new key, reposition the flywheel, aligning the notch in the flywheel with the slot in the crankshaft.
17
Now, insert the key into the slot and push it into place.
18
Realign the flywheel fan.
19
Replace the screen assembly.
20
Make sure the washer is in place, then rethread the flywheel mounting bolt.
21
Torque the bolt to one hundred foot-pounds.
22
Snap the cap into place.
23
Reposition the blower housing.
24
Make sure the housing is properly seated on the air diverter.
25
Rethread and tighten the mounting bolts to secure the housing.
26
The longer bolts go in the back.
27
Replace the screw in the filter housing.
28
Reposition the air filter.
29
Realign the cover and rotate the retaining knobs clockwise to secure.
30
Reattach the oil drain tube to the blower housing.
31
Reinstall the hood or engine cover and reconnect the headlight wire harness if applicable.
Applicable Product Model
Parts Needed
Flywheel Key
$5.34
Total$0.00
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