Luciano Contreras     

Mr. Blittman

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December 7th 2017


What is trouble shooting? Trouble shooting is solving a
serious problem for an organization or company. In engines it’s the same
concept, what is it that’s causing the problem? For example an occurring problem
for engines is why isn’t it stating, and to trouble shoot you would figuring
out what’s causing it and then fix it. Today I’m going to be talking about
compression and some things that could cause compression loss and how to
trouble shoot it.

Some topics I’m going to go over are Excessive carbon
buildup, if the Valve seat has popped out, if there’s Ring wear/cylinder wear, or
if the Rings/cylinder have been scored, also if the Head gasket is blown. If
there’s excessive carbon build up that means carbon is stuck on the valve seat or
valve face. To fix this “clean away the remaining carbon with solvent, using
fine steel wool to smooth rough spots. You can also soak metal parts for up to
15 minutes to remove stubborn deposits. Scrape again, if necessary, to loosen
stubborn grit. Then, clean the area thoroughly with the solvent and set the
head aside.” States Briggs and Stratton’s gas engines. If the Valve seat has popped
out this means that the engine never get their fins cleaned which means excess
heat makes aluminum expand too much. This happens on the intake seat. If the
seat isn’t damaged by the valve, it can be re-seated into the block, but its
better that you take the engine in to a shop to have them do it.( I personally recommend
27th street automotive down in Boise, I know a guy) They will re-cut
the seat and valve face as well. If there Ring wear/cylinder wear its due to
years of hard service. The opening get too wide, then compression is blown into
the crankcase. If the cylinder is not too worn, Chrome Rings could be installed
to re-gain your compression instead of over fitting and fitting the piston with
steel rings.