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40N777-0021-B1
40N777-0021-B1 Briggs and Stratton Engine - Overview
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Engine, Bands 7220 Series, Twin Intek
This part number matches the current model number 40N777-0021-B1
PartSelect #: PS16338066
Manufacturer #: 40N777-0021-B1
No Longer Available
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Aluminum Push Rod
PartSelect #: PS9073139
Manufacturer #: 690982
This is a replacement push rod for your lawn tractor engine. It is made of aluminum and is the push rod used for the exhaust valve. Occasionally, the push rod in your engine can become damaged, and wi...
$8.27
In Stock
Seal--Oil (PTO Side)
PartSelect #: PS9151828
Manufacturer #: 795387
This OEM Seal-Oil (PTO Side), also called the Oil Seal, is a Black, Nitrile Rubber, 2/14 O.D., individually sold part which is installed using a Seal Puller. Customers rate the installation difficulty...
$7.88
On Order
Gasket-CylinderHead
PartSelect #: PS9067184
Manufacturer #: 693997
This is a replacement cylinder head gasket for your small engine. The gasket is approximately 5 inches in length and 5 inches in width at its longest and widest points. The gasket creates a seal, and ...
$26.91
In Stock
Seal,Oil
PartSelect #: PS9277860
Manufacturer #: 391086S
The Oil Seal is a manufacturer-approved rubber part which provides a seal between the crankcase and crankshaft by attaching around the axle shaft on the crankhouse housing. Installation is rated as "M...
$6.59
In Stock
Armature-Magneto
PartSelect #: PS9983828
Manufacturer #: 592846
On outdoor power equipment, the magneto generates electricity by using magnets in the fly wheel to produce pulses of high voltage to power the spark plugs. Other parts of the magneto include the ignit...
$56.21
On Order
Questions And Answers for 40N777-0021-B1
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Bad governor
Look on YouTube for video's on how to replace a Briggs governor. There are several there. My favorite, with best explanation, is, "Easily Replace Briggs Governor Gear (V-Twin Intek Engine) with Taryl". https://www.youtube.com/watch?v=wn3eanGxSEA&t=152s.
Taryl (probably not his real name) does a very good job of showing step-by- ... Read more step the whole procedure, along with some additional hints/tricks/techniques of value.
Not including oil and filter, I spent less than $50 for a new governor, gasket, and drive shaft seal. That's all that is really necessary to replace is those three parts. That is, unless pieces of the old governor tore up a gear, valve, or something else. Inspect everything! {I was lucky and only the governor was destroyed}
One word of note. Be sure to clean out all of the debris from the blown governor. Be sure to remove the spark plugs and carefully rotate the drive shaft while looking for nooks-and-crannies where debris can hide. I tried to use a magnet to help, but it didn't help much, even though the block is aluminum.
Good luck.
Taryl (probably not his real name) does a very good job of showing step-by- ... Read more step the whole procedure, along with some additional hints/tricks/techniques of value.
Not including oil and filter, I spent less than $50 for a new governor, gasket, and drive shaft seal. That's all that is really necessary to replace is those three parts. That is, unless pieces of the old governor tore up a gear, valve, or something else. Inspect everything! {I was lucky and only the governor was destroyed}
One word of note. Be sure to clean out all of the debris from the blown governor. Be sure to remove the spark plugs and carefully rotate the drive shaft while looking for nooks-and-crannies where debris can hide. I tried to use a magnet to help, but it didn't help much, even though the block is aluminum.
Good luck.
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Parts Used:
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John from BROOKVILLE, IN
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Difficulty Level:Easy
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Total Repair Time:1- 2 hours
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Tools:Nutdriver, Pliers, Socket set, Wrench set
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Rod broke ruining the case and camshaft
dissembled ordered repair parts, piston ,upper case, rod, camshaft, seal kit, and motor maintenance CD
The camshaft first provided did not have the compression release device on it and the cam lobe position was all wrong for the model engine I had. .
Parts Select provided me with the proper cam Shaft. Removed engine from mowe ... Read more r (Scag Freedom Z) 15 minutes, drained oil, flipped upside down removed bottom case, removed wrong cam shaft, reinstall new valve lifters, camshaft with decompression release on it matching dots on crankshaft. Used paint brush to coat all parts heavily with motor oil.
Do not put sealant on case gasket,(it might change crankshaft end play), retorqued bolt in alternating pattern, placed nylon pipe tape on drain plug threads, and reinstalled engine on mower. It started instantly and ran extremely smooth with no oil burn or vibration.
I am very happy with the support and quick mshipping Parts Select provided..
The camshaft first provided did not have the compression release device on it and the cam lobe position was all wrong for the model engine I had. .
Parts Select provided me with the proper cam Shaft. Removed engine from mowe ... Read more r (Scag Freedom Z) 15 minutes, drained oil, flipped upside down removed bottom case, removed wrong cam shaft, reinstall new valve lifters, camshaft with decompression release on it matching dots on crankshaft. Used paint brush to coat all parts heavily with motor oil.
Do not put sealant on case gasket,(it might change crankshaft end play), retorqued bolt in alternating pattern, placed nylon pipe tape on drain plug threads, and reinstalled engine on mower. It started instantly and ran extremely smooth with no oil burn or vibration.
I am very happy with the support and quick mshipping Parts Select provided..
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Parts Used:
-
Arthur from SAINT JO, TX
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Difficulty Level:Really Easy
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Total Repair Time:30 - 60 mins
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Tools:Socket set
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