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I have run into some engine problems. 20 horse Briggs opposed twin.
Fired it up one day to go on a ride and could hear a new noise. I thought (was hoping) it was just an exhaust leak or something simple like that.
Upon further investigation....this here is a blown head gasket.
20170423_055112[1].jpg20170423_055123[1].jpg
Although its real easy to pull the head on these engines, I decided to pull both heads, which means I had to pull the engine. It appears the gasket blew simply because the head bolts weren't properly torqued. They were just barely snug.
The real dilemma I have is whether or not to rebuild, replace, or just regasket and run it. The dilemma is caused by damage in one of the cylinders. I suppose once upon a time this engine had water in it and what you see in this pic is the result of rust / pitting. I don't know what else it could be.
20170423_204348[1].jpg
This same cylinder has a couple of pretty nasty scratches, but they are hard to see. I have no idea what caused them because they aren't uniform. Must have been a prior mechanic that scratched the cylinder wall somehow.
20170423_204412[1].jpg
I hate to put it back together knowing the condition of the cylinder. I suspect a bore and rebuild will approach the cost of a Predator. Decisions decisions.
Fired it up one day to go on a ride and could hear a new noise. I thought (was hoping) it was just an exhaust leak or something simple like that.
Upon further investigation....this here is a blown head gasket.
20170423_055112[1].jpg20170423_055123[1].jpg
Although its real easy to pull the head on these engines, I decided to pull both heads, which means I had to pull the engine. It appears the gasket blew simply because the head bolts weren't properly torqued. They were just barely snug.
The real dilemma I have is whether or not to rebuild, replace, or just regasket and run it. The dilemma is caused by damage in one of the cylinders. I suppose once upon a time this engine had water in it and what you see in this pic is the result of rust / pitting. I don't know what else it could be.
20170423_204348[1].jpg
This same cylinder has a couple of pretty nasty scratches, but they are hard to see. I have no idea what caused them because they aren't uniform. Must have been a prior mechanic that scratched the cylinder wall somehow.
20170423_204412[1].jpg
I hate to put it back together knowing the condition of the cylinder. I suspect a bore and rebuild will approach the cost of a Predator. Decisions decisions.
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