IF the cylinders were bored over and IF the rings were put in upside down.......
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Vin issues motor issues
- Thread starter Timmy hutts
- Start date
JJames
XS650 Addict
You can lead em' to water but you can't make em' drink. Lol.
Putting it out here for comments
Valve stem seals Is a known problem especially after a long standstill
Piston tops looks More or less OK
Cylinder head sooty , black
??? Proposition -- Valve stem seals not there or cracked --Letting oil flow down smoking consuming oil and eventually hit the Valve seat loosing compression.
So the spark plugs in -- turn it over and pour in Gasoline will flow right through and the Cracked valve stem can be seen or after dismantling
Valve stem seals Is a known problem especially after a long standstill
Piston tops looks More or less OK
Cylinder head sooty , black
??? Proposition -- Valve stem seals not there or cracked --Letting oil flow down smoking consuming oil and eventually hit the Valve seat loosing compression.
So the spark plugs in -- turn it over and pour in Gasoline will flow right through and the Cracked valve stem can be seen or after dismantling
If that’s the case this post could be relevant.
https://www.xs650.com/threads/valve-stem-seals-replacement-without-pulling-the-motor.59722/
https://www.xs650.com/threads/valve-stem-seals-replacement-without-pulling-the-motor.59722/
The OP said it burned 3 ltrs in 30 min. I'm wondering if you could actually push that much oil past the seals in 30min.
I had a Mustang with a straight six in it.... would burn a quart of oil in 30min. The rings were shot.
Smoked like a mosquito fogger.
