k4.6 front bearing LEEEKS

[awhunt]

just got a k4.6 of e-bay. tried to seal engine, only to find out that the front bearing leaks like a mofo. took it to my LHS they said I need to take apart motor to get to that bearing. ISTHIS TRUE, and if it is, is it a pressed in bearing, they said it was. any advice on how to do this, and what kind of bearing to replace it with. they recomended ceramic bearings. I have taken my savage apart lots of times, but never complete teardown of an engine.

 

[abovelegit]

i have heard that the only ay to fix a leaky front bearing is to replace the front bearing. I don't think you can seal it, but I'm not 100% sure on that..

 

[awhunt]

but am i going t need to take apart the entire engine?

 

[abovelegit]

Removing the crankcase bearings

When rebuilding a truly worn-out nitro mill, you may want to replace one or both of the crankcase bearings. After you've removed the carb, piston and sleeve and crankshaft, the only parts that remain are an empty crankcase and the bearings. The engine bearings are press-fit Into the crankcase so to remove them youll have to warm the crankcase in an oven to allow It to expand. Heat the oven to approximately 250 to 300 degrees F, and "cook" the engine for 5 or 6 minutes. Once you've heated the crankcase, remove It from the oven (use oven mitts!), and tap the bearings out with the end of a wooden spoon or any other non-metal tool.

For a totally "factory"Job, use a special bearing removal/ Installation tool such as the one from OFNA. This tool Installs and removes crankcase bearings In a snap.

- http://findarticles.com/p/articles/mi_qa3825/is_200207/ai_n9128727/

So yes it would be easier to just take the head off, pull the sleeve and piston out, heat it up and remove the bearings.

 

[awhunt]

are there any special bearings that will not leak fuel or air, gas is EXPENSIVE.:\