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Old 01-13-2013, 06:21 PM   #3803
YetiGS
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Joined: Apr 2007
Location: San Diego
Oddometer: 7,307
Today, in honor of the Dakar rest-day, I did some work on my 450. First, I've had oil blowing out the vent on the transmission side. After ruling everything else out, I came to suspect the kick start idler gear. Sure enough:

The old one:



You can see that the inner bushing has shifited, blocking the oil passages.

Here's the new one:




Then, using Ned's write up in this very thread, I replaced the head gasket due a suspicion that was what was causing my coolant to spew out, even when the engine was not over-heating. Here's what the inside of the head looked like:






And the valves:



Some weird crystalization there, especially right near the spark plug hole. Not sure what to make of that.

Thoughts?
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