this months motor. - Chicagoland Sportbikes
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post #1 of 10 (permalink) Old 02-02-2013, 06:24 PM Thread Starter

 
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this months motor.

An LC4 KTM


came in showing metal shavings in the oil along with making some extra noise.


So far the tear down was uneventful I needed a couple special tools as usual.


the motor looks good inside so far unable to find the cause of metal shavings in oil.







Gus
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post #2 of 10 (permalink) Old 02-02-2013, 06:54 PM
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Nothing?

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post #3 of 10 (permalink) Old 02-02-2013, 08:42 PM Thread Starter

 
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I have not taken apart the head or crank assembly to see the connecting rod big end bearing.

But nothing of any sort that shows real failure.

I will be replacing every single wear item I can find so it will be new either way.

Gus
We offer three kinds of service @ Resurrection
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You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
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post #4 of 10 (permalink) Old 02-02-2013, 09:25 PM
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Quote:
Originally Posted by resurrection View Post

I will be replacing every single wear item I can find so it will be new either way.
Best that way, it may cost more but cost more to go in the second time if need too.

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post #5 of 10 (permalink) Old 02-02-2013, 10:13 PM
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If the shavings were bronze/brass the big end of the rod sounds suspect.
Sometimes its cheaper to just buy the crank/rod assy then to bother with the individal components.

Does the clutch basket share the same engine oil compartment that had the shavings?

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post #6 of 10 (permalink) Old 02-02-2013, 11:56 PM Thread Starter

 
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I have not spent any time with a fine toothed comb. fear not I'll spend all his money on any speculation we may all have.

One thing I've learned over the coarse of building dozens of motors over dozens of years is that money doesn't grow on trees.

Truth is I could spend more than the bike is worth replacing every part.Therefor it is always my plan to keep cost in line and replace only the obviously worn parts and all bearings.

many times I've heard people not writing the check suggest I replace every thing.I'm also sure that if something fails it will my fault new parts or not.

I will check all bronze or brass bushings and the clutch parts.

My first guess on any metal shavings will be towards the alternator parts as that was the only place I saw any metal shavings.These shavings were metal not brass or alum. as they were stuck to the magnet.

I'll get a better look tomorrow.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #7 of 10 (permalink) Old 02-03-2013, 12:09 AM Thread Starter

 
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Quote:
Originally Posted by Ohfugit View Post
If the shavings were bronze/brass the big end of the rod sounds suspect.
Sometimes its cheaper to just buy the crank/rod assy then to bother with the individal components.

Does the clutch basket share the same engine oil compartment that had the shavings?
Roller bearing one piece rod.
The owner mentioned shavings in the oil of what I dont know.

What I saw was on the magnet and that was it.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #8 of 10 (permalink) Old 05-11-2013, 07:04 PM Thread Starter

 
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Sorry about the long delay but I had to get a valve job myself.

I've replaced ALL the case bearings,cam chain,crank Ass. and the valve job this morning.

We have the wrong base gasket so that will slow progress again.Maybe next week.


striped the head


cleaned things up a bit in the head.



Kick some valves in the ass if ya know what I mean.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #9 of 10 (permalink) Old 05-12-2013, 10:11 AM
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Looks good Gus.
Nice to see you back in action!

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post #10 of 10 (permalink) Old 05-12-2013, 07:34 PM Thread Starter

 
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I sure like the work.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
resurrection is offline  
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