Engine blown - ZX6R Forum
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post #1 of 16 Old 03-14-2017, 03:59 PM Thread Starter
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Engine blown

So, my new bike made a weird noise. The engine sounded like it started rattling. I shut the bike off as soon as it started making the noise. I pulled in the clutch and got it to the side of the road. The belly pan has some oil in it now.

Anyways, I'm currently taking the fairings off and will post pictures if I find anything. Any help with pointing me in the right direction would be greatly appreciated.

Sorry, didn't mention it is a 2005 zx6r 636.

Last edited by MrEsky; 03-14-2017 at 04:14 PM.
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post #2 of 16 Old 03-14-2017, 05:12 PM
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If you have oil in your belly pan you have shot a rod through your engine case. Basically you need to source a replacement engine. Ebay may be your best bet.
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post #3 of 16 Old 03-14-2017, 05:36 PM Thread Starter
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Originally Posted by PainfullySlo View Post
If you have oil in your belly pan you have shot a rod through your engine case. Basically you need to source a replacement engine. Ebay may be your best bet.
Could I rebuild with replacement case, jugs and rods?
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post #4 of 16 Old 03-14-2017, 05:44 PM
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Yep wat he said^^^

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post #5 of 16 Old 03-14-2017, 07:38 PM Thread Starter
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Ok, so I have the bike stripped down. About to pull the motor from the frame. I don't see any visible damage on the outside that shows a rod punched through. I'll get a better look at it when I get the block apart tomorrow. I'm betting you guys are probably right though.

I'm going to try to repair the engine before getting a new one. Wish me luck!
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post #6 of 16 Old 03-14-2017, 08:30 PM
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It's probably going to be cheaper to buy another motor.
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post #7 of 16 Old 03-15-2017, 06:51 AM
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Quote:
Originally Posted by MrEsky View Post
Ok, so I have the bike stripped down. About to pull the motor from the frame. I don't see any visible damage on the outside that shows a rod punched through. I'll get a better look at it when I get the block apart tomorrow. I'm betting you guys are probably right though.

I'm going to try to repair the engine before getting a new one. Wish me luck!
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It's probably going to be cheaper to buy another motor.
Agreed

OP: If your cases are good then you COULD probably rebuild. (I haven't seen the inside of the engine so that may not be true). But you'll still want to get them looked at/machined before doing a rebuild. (costs money). However... it may be cheaper and easier to simply source a new motor. I've been looking to rebuild an '09-'12 engine and have tried seeing what I could find. I'd spend more on just a case, crank, and pistons/rods + top end than I would buying a used engine on ebay and having it shipped to my door. What I've started doing is looking at crashed/salvaged auctions to see what's out there. I can pick up a crashed 2011 zx6r that's totaled but has a good engine for around $650 if I won the current bid. That's half what I'm finding a used engine for on Ebay.

Keep the engine you have if the cases are good and you haven't damaged the insides too much. Then start slowly rebuilding. You'll have a fresh, new motor for the bike and could swap it out anytime you wanted. Or sell it
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post #8 of 16 Old 03-15-2017, 07:13 AM
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OP, it's always best to make decisions based on measured data..... before you make any decisions or take much apart, do a compression check. Inspect the engine oil, and the coolant.

That will give you a good basis for any decisions going forward from that point.

Rattling and clanking are almost always bad news for an engine. Especially ones that are meant to turn up to 15K RPM.
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post #9 of 16 Old 03-15-2017, 09:13 AM
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Used motors are a crap shoot. You could be getting someone elses problem. Or you could get a good one. Roll them dice.....
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post #10 of 16 Old 03-15-2017, 01:10 PM
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Quote:
Originally Posted by MrEsky View Post
Could I rebuild with replacement case, jugs and rods?
Theoretically yes, but you'd find it much easier and less expensive to just buy a whole engine from Ebay and install it.


See my thread, here:
Project Genji - A 2005 636 is spared an ignoble death

Used engines are indeed a crap shoot, but if you buy from a seller who is in the business of selling used motorcycle parts on ebay, they'd apparently rather just throw an engine away than deal with the hassle of negative feedback from selling a known-bad one. When mine arrived damaged, the seller was, like, falling all over himself to make me happy, even though it was pretty obviously the shipper's fault. After swapping my good head onto the ebay motor, it works just fine. I paid about $1000 shipped to my door for that engine, not counting the refund for the damage. That was a smokin' deal (for ebay, anyway), but even an average deal would have been cheaper than buying all the new parts I'd have needed.

I rode that bike to the office today.

Before you start ordering parts, though, either get an expert to diagnose the issue, or diagnose it yourself.
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post #11 of 16 Old 03-15-2017, 06:50 PM Thread Starter
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So I'm excited. Just took the engine apart. I didn't throw a rod!

The auto cam tensioner was super loose as was the cam chain. It didn't look like they where timed properly.... so I'm tearing into the head to see if I have a bent valve.

Otherwise, I'm putting new rings in it, new gaskets, a water pump and oil pump.

Thank you all so much for your input. It means a lot.

I'll keep you all posted.
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post #12 of 16 Old 03-15-2017, 06:55 PM
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The compression check would have told you more, for less effort....

Just saying.
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post #13 of 16 Old 03-15-2017, 06:59 PM Thread Starter
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Quote:
Originally Posted by RJ2112 View Post
The compression check would have told you more, for less effort....

Just saying.
Yeah, I'm definitely learning the hard way here.
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post #14 of 16 Old 03-15-2017, 07:00 PM
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Quote:
Originally Posted by MrEsky View Post
So I'm excited. Just took the engine apart. I didn't throw a rod!

The auto cam tensioner was super loose as was the cam chain. It didn't look like they where timed properly.... so I'm tearing into the head to see if I have a bent valve.

Otherwise, I'm putting new rings in it, new gaskets, a water pump and oil pump.

Thank you all so much for your input. It means a lot.

I'll keep you all posted.
pics please

:

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post #15 of 16 Old 03-16-2017, 03:50 AM
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Quote:
Originally Posted by MrEsky View Post
So I'm excited. Just took the engine apart. I didn't throw a rod!

The auto cam tensioner was super loose as was the cam chain. It didn't look like they where timed properly.... so I'm tearing into the head to see if I have a bent valve.

Otherwise, I'm putting new rings in it, new gaskets, a water pump and oil pump.

Thank you all so much for your input. It means a lot.

I'll keep you all posted.
This is good news but it doesn't explain where the oil came from? Usually that is a sign of catastrophic failure of some component.
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