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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Anonymous

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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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3 Answers

I have a 21 hp Briggs and Stratton model #331877, what are the valve settings?
Intake 003 - .005
Exhaust .005 - .007

Adjusted with the piston 1/4" past TDC of compression stroke for each cylinder.

Apr 10, 2015 | Craftsman Garden

1 Answer

18.5 hp lawn tractor will not turn over when on compression stroke . If you move it a little by hand past compression stroke it will start.
Sounds to me that you have a weak battery and is not putting out enough cranking amps..Takes more cranking amps during compression strokes to start than in down stroke...That is why you are able to start it in the down stroke less amps needed to turn motor over..

Jun 28, 2014 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

2 Answers

Hard hitting on compression stroke when starting
Most Briggs deco vaves are internal and pretty reliable, the valve clearances are very important, if the exhaust valve clerance is too wide the valve lifter will not work, if there is no adjustment yoy would have to fit a new service valve and re do the clerance by removing material from the valve stem

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What is the valve setting for 2004 18.5 HP briggs & stration intek ohv engine?
31C700 engine? (model number)

This is pretty generac for all of their engines as a general rule 0.004 - 0.006

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)

b. Torque adjusting screws and jam nuts to 60 in. lbs.

(7.0 Nm).

2. Set No. 2 cylinder at TDC, compression stroke.
a. Repeat for No. 2 cylinder.

Thanks for choosing FixYa,
Kelly

Aug 24, 2011 | Craftsman Garden

1 Answer

Engine won't stsrt as starter won't wind over past compression stroke. starter and battery good
check your valve adjustments, quite common for this to happen when the valves go too far out of adjustment.....it will work better with them adjusted too

Jan 27, 2011 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

18 hp vanguard 165lbs and 180 lbs compression have to hand turn engine past compression or starter wont turn engine over
if its hard to get the engine to turn past the compression release then pull your valve coversand try setting your valve lash
.006 on intake
.008 on exhaust

Oct 25, 2010 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

How to adjust comp release on a briggs and straton 7 Hp engine with OHV ,the engine stops on the compresson stroke, untile you get past ,Fire, then spins untile the comp stroke
Go to smalleng.com they have video on how to do what you need. Check it out awesome website!

Apr 07, 2010 | Garden

2 Answers

Seems to be compression locked?
adjust the valves

Jul 11, 2009 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

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

Jul 08, 2009 | Briggs & Stratton Briggs Stratton Intek V...

3 Answers

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.

Feb 12, 2009 | Garden

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