Dead 2011 engine :-( Can this be repaired? - ZX6R Forum
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post #1 of 17 Old 04-23-2017, 12:56 PM Thread Starter
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Unhappy Dead 2011 engine :-( Can this be repaired?

So I was just coming out of a 112mph corner, and boom, lost all compression on cylinder 1, luckily dipped the clutch and rolled to a safe stop.

Stripped him down today to find this:









Clearly not good news. What's gone wrong, and can that block even be repaired somehow? Don't want to wait till ive spent a fortune on a piston, head, gasket... to find the block is no good cos of the gouges.

What do you guys think?
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post #2 of 17 Old 04-23-2017, 01:01 PM
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Part of me thinks the block can be used since the nick is going to be above the rings. @riverszzr would know.

Is the head toast?
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post #3 of 17 Old 04-23-2017, 01:04 PM Thread Starter
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Yep, not even gunna bother trying to repair that
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post #4 of 17 Old 04-23-2017, 01:21 PM
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My guess is the liner is burnt through and you won't be able to save it. Looks a lot like a torched valve seat, TBH....

"Basic stuff fellas. Use your head for something other than to break your next fall."

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post #5 of 17 Old 04-23-2017, 01:56 PM
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Given the head and piston are FUBAR, and that liner is not much better, I'd say it's not going to be significantly different in terms of price between replacement and repair. If it were mine, I'd looking for a replacement.
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post #6 of 17 Old 04-23-2017, 02:45 PM
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Time for a new motor bro
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post #7 of 17 Old 04-23-2017, 07:13 PM
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that'll buff right out.
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post #8 of 17 Old 04-23-2017, 10:57 PM
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Sucks man but for less than parts and labor you can most likely find a low miles replacement motor and drop it in, in a days work.
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post #9 of 17 Old 04-24-2017, 01:14 AM
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Soak that shit in Oxi-Clean!!

Itll be good to go!
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post #10 of 17 Old 04-24-2017, 04:20 AM
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To answer your question: yes, that can be repaired but that is the wrong question to ask. What you really want to know is that it would be far less expensive to source a used motor and replace the entire thing.

Sorry for your tough luck. By any chance have you flashed your ECU or messed with the timing map at all?
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post #11 of 17 Old 04-24-2017, 07:14 AM
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If that was a $20-$50k Porsche engine like I work on we'd have no issue repairing it and rebuilding. But we are talking about an engine that isn't worth much when it's all said and done. But that's a couple of grand of work on an engine we'd rebuild for $5k and resell of $20k. Lots of profit left. Not in this case though...

Can't be repaired? I'm quite certain it can be. It's in better shape than mine was after it did the same thing. But cost wise, just pop a running engine in there and call it a day.

If you're not sure what to do with the old one hit me up.

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post #12 of 17 Old 04-25-2017, 06:47 AM Thread Starter
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Thanks guys.

So the next question.. the only 'decent' replacement I can find is a 2014, 636. Is it a direct swap? Is it a better/stronger version? What do I need to change for it to fit and work? Or would it just be easier to wait for an RBF to crop up?

Im in the UK by the way, so 2010-2012 are hard to come by.
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post #13 of 17 Old 04-25-2017, 07:16 AM
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I don't think this will be a direct swap, but I'll bow to those with greater knowledge of more recent models.

As far as replacement engines, this seems a real bitch. The 2010-2012 engines seem to be rocking horse poo here in Blighty, but a look on eBay's US site and they seem to be everywhere (with a fair price, free delivery and a 30-day guarantee). 'This Sceptred Isle' can be a royal pain in the arse for some things.

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post #14 of 17 Old 04-25-2017, 07:24 AM
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Where are you located?
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post #15 of 17 Old 04-25-2017, 07:37 AM Thread Starter
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