How to get metal shavings out of engine?

[AKmotorider]

So my buddy has a 06 CRF250R that just seized and apparently it was the lower connecting rod bearing. He's gonna replace all the damaged parts and all but he doesn't know how to get all the metal shavings out. From what he tells me, it looks like someone dumped a carton of glitter into his engine. The bearing disintegrated. He was thinking of giving it an oil bath, but is afraid of missing a spot or not getting every bit out and having it seize again as soon as he dumps all this money into replacing stuff. Do you have any suggestions?

 

[AKmotorider]

This is what it looks like in there. About a quarter of the metal shavings...as you can see they're pretty small.
http://instagram.com/p/a6wLgGnPdg/

 

[slowerthanu]

the only sure way is to have the cases hot tank cleaned at a machine shop, or strip them yourself and clean with solvent and air pressure.

 

[timoyz]

You'll, or he, will have to split the cases to replace the crank anyway. Once it's apart, it will be easy to clean up. A parts washer would be alot easier, but carb cleaner would work too. Make sure to check all bearings, if they feel a little gritty, replace with new.

 

[bobkyle2]

Timo is correct. Your going to yank it all apart to replace the crank bearings. Carb/brake cleaner/kerosine/diesel ...

 

[James]

Make sure to check all bearings, if they feel a little gritty, replace with new.

I'd say that since you're already in there, just replace all of them.

 

[timoyz]

I'd say that since you're already in there, just replace all of them.

If he has an extra $200+, go for it, but if they spin freely, and have no issue, why waste the money?

 

[josmoloco]

If he has an extra $200+, go for it, but if they spin freely, and have no issue, why waste the money?

Exactly!

 

[James]

If he has an extra $200+, go for it, but if they spin freely, and have no issue, why waste the money?

Very true, I'm just looking at it as preventive maintenance...

 

[PALMER84ONE]

Cheap?
Fill motor with gas and shake well. Magnet will collect it. Repeat a couple times, fill with right amount of oil run ten minutes. If the magnet has metal on it after running with oil, you done, crack case open and rebuild.

 

[PSJBrock]

If he has an extra $200+, go for it, but if they spin freely, and have no issue, why waste the money?

Because if you are putting a G into a brand new motor what is 200 bucks. Just think of it as an investment. Are you going to have your 1000 bucks riding on 200?

I would never, have never , and wont ever put a motor back together with old bearings. just not worth it in my opinion.

 

[timoyz]

Cheap?
Fill motor with gas and shake well. Magnet will collect it. Repeat a couple times, fill with right amount of oil run ten minutes. If the magnet has metal on it after running with oil, you done, crack case open and rebuild.

That's going to be hard to do with the toasted rod bearing.