Tweet
Noticed the thermostat cover leaking on my F225TXRD some time ago, and found the "hose barb" portion to be quite corroded.
Looking into a replacement, I learned that following the 2005 model year,
Yamaha added tiny sacrificial anodes
(and changed the name from cover assembly to anode assembly)
So I've changed to the new part -both sides -
(impressive engineering! the original part was a tight fit already - but the new larger part still squeezes in there)
But I'm curious about Yamaha's motivation for the change.
Was it merely to address the problem I'd just had -
in other words, to protect only the cover itself?
or did they think it would help prevent corrosion of the block thermostat cavity?
which I suppose it might - but only while the engine was running with water flowing flowing through the thermostat.
Can't imagine it could do anything while the engine is off.
Looking into a replacement, I learned that following the 2005 model year,
Yamaha added tiny sacrificial anodes
(and changed the name from cover assembly to anode assembly)
So I've changed to the new part -both sides -
(impressive engineering! the original part was a tight fit already - but the new larger part still squeezes in there)
But I'm curious about Yamaha's motivation for the change.
Was it merely to address the problem I'd just had -
in other words, to protect only the cover itself?
or did they think it would help prevent corrosion of the block thermostat cavity?
which I suppose it might - but only while the engine was running with water flowing flowing through the thermostat.
Can't imagine it could do anything while the engine is off.
Comment