SuzukiSavage.com - Splitting the Crankcase

njohnso8 YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 11 New Orleans, LA	Re: Splitting the Crankcase Reply #15 - 12/01/16 at 16:01:33 It looks like it didn't actually load the pic of the R case on my first post. Those scratches from the chain don't go all the way through, no cracks, but thats part of the source of all these metal shavings.
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Mr.T Junior Member Offline SuzukiSavage.com Rocks! Posts: 55 Tega Cay, SC Gender:	Re: Splitting the Crankcase Reply #16 - 12/01/16 at 18:14:27 how many miles were on the engine when the problem started?
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justin_o_guy2

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What happened?

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Re: Splitting the Crankcase
Reply #17 - 12/01/16 at 19:15:43

Since you've isolated it to whats left in the case and the clutch is out of the picture, then what's left?
The counterbalance and its drive, the crank and rod bearings.

Can you feel or hear it in the rod?
Can you get small tubing in an ear and close to a crank bearing?
I'm Guessing it's not in a transmission gear, since the clutch is out.. maybe someone can agree or disagre?

Did the tensioner spring get mangled?

There are magnets inside the other side engine case .

The more places you can prove it isn't before you pop it apart,,,

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justin_o_guy2

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What happened?

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East Texas, 1/2 dallas/la.

Re: Splitting the Crankcase
Reply #18 - 12/01/16 at 19:47:44

If it's Just TDC and BDC and it doesn't change, I'd wanna look at the counter balance drive gears and chain.
Bearings would thump a dozen times if there was a .piece of crud in one, I'd think.
If it's a piece of crap in a gear you should be able to feel something,
I've never had the top end off,so IDK what you can see down in there.

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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: Splitting the Crankcase Reply #19 - 12/02/16 at 08:20:45 Jus a thought. Could what you are feeling/hearing be the counterweight going over centre at TDC and BDC?
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njohnso8

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Re: Splitting the Crankcase
Reply #20 - 01/27/17 at 21:06:18

Just wanted to follow up on this, I built my own version of a steering wheel puller and followed that video Dave posted and it came apart with no problems. Just finished cleaning the inside, replaced the oil pump strainer, and had the bearings and crankshaft professionally inspected. Everything checks out so gonna seal this thing back up. Likely the knock is what norm was saying. Its just hard to know if somethings wrong if you don't know what it should sound like.

Thanks for the help!!

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Cranksplittool.jpg

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RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Re: Splitting the Crankcase Reply #21 - 01/13/20 at 05:19:47 I also have some kind of pinging/knocking in my engine and according to my Clymer manual one possible cause may be a worn main bearing. I'm guessing I need to split the crankcase IF that is indeed my problem. Is splitting the case and replacing the bearing something a moderately experienced tinkerer can do?
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: Splitting the Crankcase Reply #22 - 01/13/20 at 06:53:17 It might be a good idea to remove the starter motor so the O-ring on the left end doesn't get damaged .
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Gary_in_NJ

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Re: Splitting the Crankcase
Reply #23 - 01/13/20 at 07:36:53

RocketScienceSmurf wrote on 01/13/20 at 05:19:47:

I also have some kind of pinging/knocking in my engine and according to my Clymer manual one possible cause may be a worn main bearing. I'm guessing I need to split the crankcase IF that is indeed my problem. Is splitting the case and replacing the bearing something a moderately experienced tinkerer can do?

Splitting the case is a gigantic pain in the butt. Can you describe how and when the knocking happens? Is it always there, warm or cold? Is it only happening when throttle is added. Does it only happen under load or will it happen just sitting still in neutral? Does it happen with the clutch engaged and/or disengaged?

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RocketScienceSmurf

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Re: Splitting the Crankcase
Reply #24 - 01/14/20 at 01:53:11

I have to go from memory here, but it was on and off when driving, regardless if I was accelerating, coasting or decelerating. It was not so much as a sound as a "metal to metal" knocking that could be easily felt in the foot pegs. It felt like it came from the left side of the engine.

I have drained the oil to check the cam chain and flywheel nut and am currently trying to lift the bike to get easier access to the engine itself. I can hopefully get the covers of this weekend and take some pics.

If I need/decide to split the crankcase, is it the threads marked with the red pen I need to use together with the splitting tool?

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