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Briggs and stratton OHV single cylinder engine (311777)... which valve is exhaust, top or bottom?

Which valve -- that gets the pushrod with the red ring -- is exhaust?

Posted by mtr99 on

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Mike Baldini

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Briggs and Stratton model number 3 1 1 7 7 7 17horsepower looking to adjust valve need gap information

Posted on Jun 02, 2020

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  • 171 Answers

The one closest to the muffler.

Posted on Jun 23, 2013

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Anonymous

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SOURCE: need valve adjustment for a for a briggs and straton 31p777-0348-

Try .003-.005 on the intake, .005-.007 on the exhaust.

Posted on Apr 23, 2009

Anonymous

  • 1 Answer

SOURCE: Briggs and Stratton OHV V-Twin 24hp repetitive valve adjustment

Try pulling out the choke a little, if it stops backfiring the mixture is too lean, check the intake
pipes at the cyl head and also the plastic runners to the carb for leaks.
Dennis in Chicago

Posted on May 15, 2009

Anonymous

  • 389 Answers

SOURCE: Briggs and Stratton 22hp v twin OHV smoking badly

First thing to do is pull your dipstick and check for broken or missing O-ring also as you pull it, look to make certain that it was seated properly and all the way locked. If either condition exists, you will be leaking into the crankcase which will cause your symptoms

Posted on Sep 14, 2009

Anonymous

  • 152 Answers

SOURCE: oil appearing at exhaust, smokey, briggs and stratton lawm mower.

You will need to replace or clean the air filter, and probably the spark plug. Do not operate the mower for some hours to allow the oil drain (inside the engine). Check oil level and fill it if necessary. Some oil remaining in the exhaust should be burnt next time the lawnmower operates.You will see smoke at the beginning, that will be normal (burnt oil). Hope this helps!

Posted on May 25, 2010

Anonymous

  • 253 Answers

SOURCE: My Briggs and Stratton 24hp twin OHV engine

Gotta find it

Posted on Aug 13, 2010

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What causes push rods to bend on left bank of a 20 HP V- Twin

Here's some generic answers, not relating to this engine specifically:
  • The timing could be off, so the piston is hitting the valve.
  • A loose pin in the piston could be allowing it to extend too far, shoving on the valve.
  • I guess the valves could need to be adjusted so there's a gap.
0helpful
1answer

Briggs service manual 311777

Try Partstree.com in Austin, Tx. They seem to have just about everything.
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1answer

Briggsload Stratton 14.5 HP single cylinder OHV gasoline engine has episodes of severe smoking when

When what if you are saying when starting..after sitting..the oil from your overhead valves are seeping into the heads through open valves..when not running..most likely bad valve stem seals...
1helpful
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Have a 20hp vanguard on a go-devil long tail motor. engin runs at idle speed then when i put the propeller into the water it stalls. if i pull the choke and give full throttle it will run some and backfire

These engines seem to have problems maintaining the correct valve lash settings. try taking the valve covers off and checking the valve/pushrod clearance.on tdc compression stroke it should be .001-.003 clearance. then check exhaust stroke tdc on exhaust stroke. clearance should be same on the other valve then. hope this cures your problem.
2helpful
1answer

15.5 intek pushrods whitch one is for the intake vavle ?

Intake is aluminum, exhaust is steel. Set valves 1/4" past top dead center on compression stroke (both valves closed), intake (bottom) .003-.005, exhaust .005-.007
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