I've got a '97 RMX 250 with a broken case. :ugg:
I bought the bike used and the previous owner had drilled and tapped the oil drain from an 8mm to a 10mm. This left about 1mm of case around the "boss" or whatever you call the protrution that the drain bolt goes in. I've been EXTREMELY careful with the thing but last night when I changed the oil it gave up. Thought it was just stripped but when I tipped the bike over the "boss thing" has two vertical cracks in it. My dad's a machinest and a master welder and pretty much said I'm screwed. He said if I split the case he might be able to weld it up for a re-tap or helicoil but didn't seem too hopeful. Anyway my plan is to Mickey Mouse it back together to finish off the season, buy new cases (big :ugg:) and send the whole mess to E. Gorr this winter.
Now my question...About 1/2 of an inch up the drain hole is a passage that leads from inside the case to the outer clutch assembly.
Is this the only way oil can get from the clutch to the inner case??
It doesn't seem like the drain bolt blocked this passage.
In order to do a halfway decent job with any kind of filler, I'm going to have to plug up this little passage and don't know if I'll be able to drain the oil out of the case through the filler hole or if oil poured into the filler hole will get over to the inner case.
Hope somebody can help. Thanks.
Sorry this got so long. I like to type!
I bought the bike used and the previous owner had drilled and tapped the oil drain from an 8mm to a 10mm. This left about 1mm of case around the "boss" or whatever you call the protrution that the drain bolt goes in. I've been EXTREMELY careful with the thing but last night when I changed the oil it gave up. Thought it was just stripped but when I tipped the bike over the "boss thing" has two vertical cracks in it. My dad's a machinest and a master welder and pretty much said I'm screwed. He said if I split the case he might be able to weld it up for a re-tap or helicoil but didn't seem too hopeful. Anyway my plan is to Mickey Mouse it back together to finish off the season, buy new cases (big :ugg:) and send the whole mess to E. Gorr this winter.
Now my question...About 1/2 of an inch up the drain hole is a passage that leads from inside the case to the outer clutch assembly.
Is this the only way oil can get from the clutch to the inner case??
It doesn't seem like the drain bolt blocked this passage.
In order to do a halfway decent job with any kind of filler, I'm going to have to plug up this little passage and don't know if I'll be able to drain the oil out of the case through the filler hole or if oil poured into the filler hole will get over to the inner case.
Hope somebody can help. Thanks.
Sorry this got so long. I like to type!