Question about Briggs & Stratton Briggs Stratton Vanguard V - Twin Vertical Ohv Engine with Electric Start 23 Hp, 1" X 3 5/32" Shaft, ModelNo. 386777 - 0036 - E1

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Starting problem after setting for ten days or more

On a 17.5 hp ohv enging stops turning on compression stroke ; canturn engine past compression stroke a few times it will start; after this engine starts fine

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Starter is good but cant turn engine over compression.

Posted on Jun 29, 2010

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Take the spark plugs out when this occurs and try to pull it through--does it expel fuel or oil? This should tell you whether you have a flooding fuel problem, or maybe the crankcase is overfull of oil causing it to leak into the combustion chamber through worn valve seals or piston rings. Hope this helps!

Posted on Jun 06, 2010

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I have a 21 hp Briggs and Stratton model #331877, what are the valve settings?


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What is the valve setting for 2004 18.5 HP briggs & stration intek ohv engine?


31C700 engine? (model number)

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From the service manual for the 31C700 engine:

ADJUST VALVES


1. Set No. 1 cylinder at 1/4" (6.4mm) past TDC, compression

stroke.

a. Adjust valves and check, Fig. 17.

Valve Clearance (cold) IN and EX .005" (0.13 mm)

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Thanks for choosing FixYa,
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1 Answer

Engine won't stsrt as starter won't wind over past compression stroke. starter and battery good


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My briggs&stratton ohv 17 hp electric starter will not turn over


I worked at a tool rental center while attending college and encountered the problem that you are having many times. The problem was caused be a variety of issues however can be determined by checking the following:
Worn starter motor bearings that would be indicated by higher than normal amp draw. Check for hot starter motor or hot cables.
Weak battery. The battery should be removed and tested for free at auto parts store. The battery should be replace every season to extend the life of the starter motor.
Belts or hydraulic pump that is not fully releasing from engine pulley or output shaft. Remove the spark plugs from the engine and tune engine by hand, it should turn rather freely.
Finally, compression release feature of engine is not working properly. Check engine service manual for proper adjustment of valves so that compression release will work. Finally check oil level for over full. Too much oil will raise compression. Good luck with your problem and email for more info.

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