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Valve Seal

Part Number: 690968

4 Reviews

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Repair Instructions

*This part replaces obsolete part #: 690235, 691316, 499236, 494435 and 272610.

Product Information

Description:

This is a genuine OEM part. The Briggs & Stratton valve seal is used on many lawn tractor machines. The metal part stops oil from moving into the cylinder from the valve stem. This item is often fastened to the intake valve and the valve keeper. A screwdriver, socket set and wrench set are required for the installation. The metal valve seal is sold individually.

Warning: California's Proposition 65

Frequently Purchased With

Rocker Cover G..
$6.33

Cylinder Head ..
$20.69

Compatibility

This part is compatible with the following machines:

Toro

Expand the 150+ compatible machines

Questions & Answers

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Repair Instructions: Submitted by Customers Like You

10 of 10 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Cylinder Head Gasket - 693997

Repair Difficulty:

Expert

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Socket set, Wrench Set, Nutdriver, Torque Wrench

21 H.P. Briggs & Stratton engine on Craftsman mower began smoking heavily while cutting grass.

Since the blue smoke from the exhaust smelled like burning oil I was certain the problem was a blown cylinder head gasket or possibly a leaking intake valve seal. I ordered both parts, which were shipped the same day, and disassembled the cylinder head to find the cause. As I suspected, the head gasket was blown and sucking oil from the valve gallery into the combustion chamber. I installed the new gasket and valve seal, torqued the head to 170 inch lbs. assembled all parts and started the engine, which ran perfectly . I'm pleased with the quick service and exact replacement parts from eReplacementParts.com. and will use them again if I have further problems.

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Spark Plug - 491055T

Valve Seal - 690968

Rocker Cover Gasket - 272475S

Intake Push Rod - 692003

Push Rod - 692011

Cylinder Head Gasket - 796584

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Socket set, Wrench Set, Nutdriver, Adjustable Wrench

Bent rods

Pulled ohv cover and did repair

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Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Rocker Cover Gasket - 690971

O-Ring - 691917

Exhaust Gasket - 690970

Push Rod - 690982

Cylinder Head Gasket - 693997

Hose-Vacuum - 793147

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set

bent push rods due to valve guide moved

removed cylinder head, pressed valve guide back in place, peened valve guide, lapped valves, reassembled head , reassembled engine.

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Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Valve Gasket Set - 794152

Repair Difficulty:

Expert

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver

Damaged intake valve

Removed the cylinder head

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Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set, valve spring compessor

valve seal leaking

Filled cylinder with air to hold valve closed. Compressed intake valve spring to remove keepers. Removed valve spring and seal. Replaced seal. Reverse procedure to put back all removed items.

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Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Repair Difficulty:

Medium

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Socket set, Wrench Set

Intake valve came loose

Replaced valve and put back together

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Tool Type:

Lawn Tractor

Parts Used:

Valve Seal - 690968

Cylinder Head Gasket - 693997

Repair Difficulty:

Easy

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Wrench Set, feeler guage

blowen head gasket

removed no.1 head. replaced push rods. replaced head gasket put head on. set valve clearance. tractor is 20 yrs old and runs like new.

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Tool Type:

Engine

Parts Used:

Gasket Set-Engine - 695438

Valve Seal - 690968

Oil Seal - 391086S

Crankshaft - 794874

Repair Difficulty:

Expert

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Adjustable Wrench, Impact wrench, feeler gauges, locktite, fine sand paper

piston shaft broke

1. I called in a professional friend.

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Tool Type:

Lawn Tractor

Parts Used:

Spark Plug - 491055T

Valve Seal - 690968

Crankcase Gasket - 697110

Screw (Connecting Rod) - 791118

Cylinder Head Gasket - 796584

Oil Filter - 696854

Repair Difficulty:

Expert

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, valve spring compressor

Engine smoking

Removed engine, removed head, valves, opened case to check rings. Rings OK, replaced piston and side case gasket. Removed valves, lapped valve seats, replaced valve stem seal. Replaced head with new gasket. Job complete.

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Tool Type:

Engine

Parts Used:

Valve Seal - 690968

Repair Manual - 273521

Cylinder Head Gasket - 693997

Repair Difficulty:

Easy

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Nutdriver, Adjustable Wrench

Engine would not start

Cleaned valves

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Reviews

Average Rating (out of 5):

4 Reviews

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Easy to order and was easier than dealing with someone local

Gaskets and seals i ordered for my Briggs and Stratton engine worked great....thank you

Chris - April 14, 2022 Verified Purchase

Engine repair

Parts came quickly Was fairly easy repair parts all fit like they should

Guest - December 31, 2021 Verified Purchase

Got what I needed

Part arrived as described. Installed fine.

Guest - October 21, 2021 Verified Purchase

The part looked the same but getting the old one out required a press. I used the spring to reinforce the flexible seal and it works fine.

I made part of it work. The mower runs great but too fast. I ordered some Springs for the throttle control. Yet to arrive.

Guest - October 30, 2020 Verified Purchase

Verified Purchase

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Product Information