How to Adjust a Valve on a 17.5 HP Briggs and Stratton Engine

If you have a 17.5 hp Briggs and Stratton engine, you may be wondering how to adjust the valve. This article will teach you how to adjust a briggs and stratton valve and check its lash. We’ll also talk about how to clean a valve. Hopefully, this article will help you get started on your next engine repair project.

Changing the spark timing on a 17.5 hp Briggs and Stratton engine

The Briggs and Stratton factory engineers are very familiar with how their engines are put together and how to adjust them to get optimum performance. The Briggs vanguard twin cylinder was set to operate with the valves opened a few ths. past the timing designated by Briggs. This slight rise in the cam’s profile causes the valve to open early or close late depending on the amount of lash.

To change the spark plugs, locate the valve cover on top of the engine. It will be silver in color and stamped with OHV. Remove the valve cover by unscrewing the four screws holding it on. Be careful to remove the spark plug. If the spark plug is still in place, remove it. Changing the spark plug is a simple process and can be done yourself without the assistance of a professional.

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Checking valve lash

There are a number of reasons why you may need to check the valve lash on your 17.5 hp Briggs and Stratton. Aside from poor performance, excessive lash may also cause premature engine wear. Excessive lash also causes engines to run rough and sound like they’re tapping. If you’re experiencing any of these problems, you’ll need to make adjustments to restore balance and sound to your engine.

A stuck intake valve can cause the intake rocker arm to break. To check if this is the case, push the intake valves in the same amount. If there is too little valve clearance, the decompressor won’t work properly. To adjust valve lash on your 17.5 hp Briggs and Stratton, contact an Authorized Briggs & Stratton Dealer.

Getting a proper clearance for a briggs and stratton valve

Getting a proper clearance for a Briggs and Stratton valve can help you restore lost performance. If you’re not sure how to do this yourself, you can consult the service manual. You should always check that the valve is clear of debris or obstructions. You should also know that if you don’t check the valve clearance properly, the decompressor may not work.

To determine if your valve is out of adjustment, try to run a cold engine test. To do this, you should remove the brake spring from the engine and insert a narrow screwdriver into the spark plug hole. Next, you should touch the piston with the tip of the screwdriver. After a few attempts, you’ll have a clear picture of whether the valve is in alignment.

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Next, you need to remove the valve cover and inspect the engine valve train. To inspect the valve train, turn the crankshaft slowly until the bottom rocker arm fully compresses the valve spring. Then, turn the crankshaft until the top rocker arm is slightly loose. The top rocker arm should have a clearance of about.005 inches.

Cleaning a briggs and stratton valve

Before you start cleaning your Briggs & Stratton valve, you must know what causes the problem. You will need a voltmeter to test the battery voltage. Place the voltmeter on each terminal. The voltage should be 12 volts. If it isn’t, there could be a timing problem. You may need to use a valve lubricant to prevent the valve from sticking.

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