How to Adjust Valves on Briggs & Stratton Engine, THE CORRECT WAY!

How to adjust valves on a Briggs and Stratton engine. Process is the same for most Briggs and Stratton Motors. Thanks for watching and Subscribe to learn something!

Correction: In the video I state the pushrods ride on the Crankshaft. As my father-in-law reminded me they ride on the CAMSHAFT!!! Duh LOL

Mower Mike, Texas HQ

Disclosure: The Amazon link above is an Amazon affiliate links. This means that, I do earn a very small commission (at no cost to you) if you click the link and finalize a purchase. Feeler gauges are cool but a pain!

[yomommaahotoo]

Finally....Simple with good lighting and recording. Subbed

[petedowns]

This is a good video. No question. I should like to point out that you said the pushrods ride against the crankshaft. They rest on the CAMshaft

[Codyjrt]

Thanks for the instructions. I knew I had valve clearance problems because it felt like my engine was hydro locked each time I tried to start it. It’s a happy engine now.
Thanks again.

[vincebaldwin]

+Thorough!! Explaining Top dead center is probably the most important point! Thumbs up Bro!

[discflight]

Nice and clear and great explanation of TDC and why 👍🙂. I appreciate it.

[watcherwatchmen]

Thanks for your video! I was having fits trying to adjust the valves because of bad backfiring and a lack of starting. I kept thinking I was doing it wrong because no matter how perfect I thought it was I had a no start condition. Turns out that the flywheel key was sheared and the only way of figuring that out was by removing the cooling intake and mesh screen to check. You could clearly see the key-way in the crankshaft 1/4 turn past where the flywheel key-way was. Only a $6.00 part. I wasn't the original owner, and had no history of symptoms to help me figure it out.

[wernerthomas]

Ride-on mower B&S the rod for the intake valve does not move, possible engine damage? Thanks for answers.

[CraneofBoulogne]

It's the camshaft that has eccentrics that open the valves against the valve springs, not the crank shaft. The engine connecting rods are connected to the crankshaft, not the push rods. If going to the trouble to adjust your valves on any engine, it is not so difficult to adjust them to the published specifications for optimized performance and long life.

[anaestereo]

Doing this before winter storage...exact same LA145. Txs!

[justoneperson]

Thank you sooo much for making this video.
My mower is running like a charm.
You rock.
Your video is to the point and yet covered everything.
🤘🤘🤘

[mrfonzer]

Very helpful and straightforward. Thank you

[higgprojects]

Thank you sir! I was putting together a video for my riding lawn mower which guess what, had a broken push rod... I put back in a new garbage aluminum one because it was the fastest way to go, but noticed my intake rocker arm was SUPER LOOSEY GOOSEY while putting in the new rod. I'm thinking maybe that actually helped the intake rod snap while flopping around in there hard. Anyway, really appriate your videos!

[johnbandy]

Great video. You can also use a small piece of paper towel in the hole. Just enough so the compression blows it out.
As always not everyone does things the same, and always more than one way to do things!

[billware]

I’ve done this on several motors with great success. This time however not so much. When I performed this service on a 21hp 540cc motor in a Craftsman YTS3000 it took multiple attempts before the compression dropped enough for the engine to crank. Valves are currently set at .004/intake and .006/exhaust. Even removed cover again to make sure. Still cranks hard though battery reads 12.9v. Weird thing is now when I shut it off it after fires a few times before stopping. Exhaust smell rich(?). Which way do I experiment with the valve lash to resolve? Greater or lesser lash space? And which one? Intake, exhaust, both?

[johnwalker]

I may be way off but always thought the push rods rode on the camshaft not the crankshaft.

[usertubeification]

Why does the Briggs manual say to rotate the piston 1/4" down after TDC?

[hawaiismoker]

You say adjust intake valve when piston is at TDC and intake valve is closed on the compression stroke. But you’re not real clear on the exhaust valve . So do you mean to turn the crankshat and adjust piton when its at TDC and adjust exhaust valve when its at the power stroke and fully closed

[MariusPretorius-sb]

Hi i have the same b&s like the one in video..
I adjusted the clearances But still it doesnt want to turn over the engine can you please help

[deniseadams]

Is there a compression release valve on the crank or elsewhere? To adjust the intake at TDC 1/4 down?

[dakota]

What size shim are you using on the feeler gauge