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Posted by Stubby on September 16, 2006, 10:13 pm
Mr.E@totally.invalid wrote:
> On 16 Sep 2006 14:49:26 -0700, paul_d_demott@yahoo.com wrote:
>
>> I have an older Sears Craftsman lawn tractor with a 180 opposed twin
>> cylinder Briggs and Stratton Engine. My son was cutting the lawn with
>> it the other day and it gradually stalled out on him. He started it
>> up again, but it quickly stalled out again. Now the engine will barely
>> crank and will not start.
>>
>> I checked the battery with a multi-meter and it tested at 12 volts. I
>> tried jumping it with a portable power source and this did not help. I
>> tried a new on/off switch and this did not help. I removed the cover
>> and I can turn the flywheel by hand without difficulty. The oil level
>> appears to be ok.
>>
>> Any suggestions of what I should do next. I don't have much
>> experience with engine repair, but due to the tractor's age I don't
>> think it would be worth taking to a repair shop. So I willing to take
>> a shot at home repair.
>>
>> From what I've read I am thinking the starter engine might be the
>> problem. One internet source suggested jumping the starter directly
>>from the battery. I am willing to try this, but it appears on my mower
>> that I need to first need to remove the flywheel to get to the starter
>> and this looks like a major undertaking, especially given the age of
>> the engine.
>> Is the starter where I should start or are there other things I
>> should or could check first? One question I have is whether a problem
>> in the starter would have caused the engine to stall out after it was
>> already going?
>>
>> Any other suggestions on how to troubleshoot this issue? I do have a
>> basic Briggs and Stratton manual for the engine on a CD-Rom, but it
>> does not contain alot of trouble shooting info (at least that was
>> helpful to me) on the starter/electrical system. It is helpful,
>> however, on assembly and disassembly issues.
>
> Several things come to mind:
>
> The starter should not be able to cause the engine to stall.
> Stopped inline fuel filter.
> This engine uses a vacuum driven fuel pump. Check for vacuum hose leak
> or fuel pump malfunction.
> Check plugs- this engine fires plug to plug.
> Put 6 or 8 drops of gas down the carb throat. Replace air filter and
> see if it fires.
> Have seen the electric blade clutch bearings fragment and lock the
> engine as soon as it tried to rev up.
> Love my old 18 horse clunker.
Ditto. My chariot is 17 years old.
Try some "Starter Fluid" from an auto parts store. It's ether and will
usually start an engine. Replace the fuel filter. I had a car that
would stall out going up steep hills or going at 70 mph for a few
minutes. The problem was the fuel filter was letting only a trickle get
through to the carburetor; consequently, the car would die after the
fuel in the bowl in the carb was used.
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