Briggs 5HP engine froze

Bama49

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Aug 13, 2013
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Just got a 5 HP Briggs engine that is froze, it appears water got into the valves, now they are stuck the fly wheel will not even turn, I poured transmission fluid into the valves and will let it set for a few days before doing anythings else. would be thankful for any advice to help with the problem Thanks in Advance.



Bama49
 

LaWn GuY

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May 19, 2014
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I would remove the spark plug and try to turn It over. And the tranny fluid Is just a waste of time.
 

KrashnKraka

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Jun 15, 2015
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As LG has pointed to - forget straight oils.

Use a penetrating corrosive lubricant, WD40 (TM) is
one such off the shelf at hardware stores.
At the bare miniumum you need to remove the head.
Wet down piston top and valves with head upside down.
When attempting to "free" any components use only
copper drifts - many persistant taps with a light hammer.
Hardwood timber tapped "on the grain" may give similar
success.
Where the unit construction will not allow covers to come off
or you cannot get any joy with the above AND you really want
the engine, put it in a sack and throw it over the back of a dinghy
on short rope. Row around the ocean for an hour or two and retrieve.
It will come apart then, using the tap an' go method.

FWIW - combustion engines left to moisture intrusion are usually
beyond repair after a week exposed to air, wet.

Trust that helps some.

KK
 

lugnut1

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Jun 15, 2015
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are the valve's seized or the piston seized?
(could try to see if you can move the valves through the breather cover)
 
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