Medium
More than 2 hours
This part is an OEM from Briggs & Stratton. The connecting rod (standard) is compatible with many lawn and garden engines, and is sold individually. The heavy-duty metal item fastens the engine piston and crankshaft. For the repair, you will need a screwdriver, pliers and a wrench set.
Rod-connecting 494504S
OEM part for: Briggs and Stratton, Toro
Part Number: 494504S
$114.38
In Stock
Ships within 1 business day 
Compatibility
This Rod-connecting will fit the following 994 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Toro
Briggs and Stratton
Show More Compatible ModelsThis item works with the following types of products:
- Lawn Tractor Parts
- Engine Parts
This part replaces obsolete part #: 494504
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Customer Repair Instructions ?
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The engine seized
Dennis - June 24, 2016
👍 4 of 5 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Impact wrench.
I disassembled the engine. I discovered that the rod had seized to the crank, but I had shut it down before the rod broke. I soaked the aluminum off from the crank using oven cleaner and then polished the crank in a lathe. I marked all the parts and found the engine to be in spec, so I installed the rings, slid the piston home, torqued the rod to spec and turned the engine over to check for binding. It was fine, so I torqued the rest of the crankcase and head to spec. After reinstalling the engine to the tractor I added oil and fuel and it fired it up. I let it run for a couple minutes keeping an eye on things. It seemed fine so I took it out mowing. I like to break an engine in under load with out abusing it, so I put it under a varying load at various throttle settings. After about an hour of this, it had quit smoking and was running nicely.
One additional thing I did that doesn't pertain to the original problem is bring the valves to spec. On this engine, the stems have to be ground a bit at a time. I also tapped the valves to the seats. I consider the project a success. The parts come with any unusual techniques or specs needed to do this.
One additional thing I did that doesn't pertain to the original problem is bring the valves to spec. On this engine, the stems have to be ground a bit at a time. I also tapped the valves to the seats. I consider the project a success. The parts come with any unusual techniques or specs needed to do this.
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All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
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