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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 09-18-2012, 12:30 PM
Sammyboy112 Sammyboy112 is offline
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Cylinder Sleeve

Hello i have a cylinder 5 misfire in my car took it to the dealer they said it has some metal in the 5th cylinder so i need a new engine i was wondering if i could simply put a cylinder sleeve in the cylinder instead and obviously get wat ever is in there out.I have a 2006 325 xi also were can i buy a sleeve.
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  #2  
Old 09-18-2012, 01:24 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by Sammyboy112 View Post
Hello i have a cylinder 5 misfire in my car took it to the dealer they said it has some metal in the 5th cylinder so i need a new engine i was wondering if i could simply put a cylinder sleeve in the cylinder instead and obviously get wat ever is in there out.I have a 2006 325 xi also were can i buy a sleeve.
.....what metal?

Just remove the head to expose the cyl.

If you don't know where to obtain a sleeve you're in no way prepared to replace it. Try a machine shop specializing in this sort of work.

???
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Old 09-18-2012, 01:30 PM
33beto 33beto is offline
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Seriously? and you believe this guys? then, dont bother getting a second opinion. just dump all that cash in it then.
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  #4  
Old 09-18-2012, 01:32 PM
Sammyboy112 Sammyboy112 is offline
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CYylinder sleeve

they said it they dont know what metal possibly piston ring or spark plug idk how it got in there but im wondering if putting in the sleeve would solve my problem and im not going to put the sleeve in myself i just want to buy it so i can have someone do it for me.
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  #5  
Old 09-18-2012, 01:56 PM
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Zeichen311 Zeichen311 is offline
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Quote:
Originally Posted by Sammyboy112 View Post
they said it they dont know what metal possibly piston ring or spark plug idk how it got in there but im wondering if putting in the sleeve would solve my problem and im not going to put the sleeve in myself i just want to buy it so i can have someone do it for me.
Metal shavings/fragments in your engine is not the problem, it's a symptom. You need to identify and correct the cause or you solve nothing.

A single cylinder sleeve costs around $30-50.00. Even if you could order the correct part--which you can't, for a multitude of reasons--what do you hope to accomplish, except tick off the guy rebuilding your engine by nickle-and-dimeing the job? The labor and additional parts to rebuild the engine could easily surpass 100 times the cost of the sleeve.

The dealer said you need a new engine because it's more cost-efficient for a dealership to replace whole assemblies than to dismantle and rebuild them. They identify the smallest unit that can be replaced, not repaired, to correct your problem. In your case, that's an engine block plus whatever else failed and destroyed it--therefore, new engine.

Take your car to a BMW/European car engine rebuilder (hint: Google; yellow pages) and get a quote, then decide whether you're buying a new car.
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Last edited by Zeichen311; 09-18-2012 at 01:57 PM.
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  #6  
Old 09-18-2012, 06:02 PM
Sammyboy112 Sammyboy112 is offline
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cylinder sleeve

so are u suggesting to get a cylinder sleeve cuz thts wat i trying to do to avoid getting a new engine
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  #7  
Old 09-18-2012, 06:38 PM
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Zeichen311 Zeichen311 is offline
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Originally Posted by Sammyboy112 View Post
so are u suggesting to get a cylinder sleeve cuz thts wat i trying to do to avoid getting a new engine
I think what I suggested was perfectly clear: Take your car to a shop that specializes in rebuilding European-car engines and talk to them about your options.

You cannot just buy a sleeve and have someone install it. For starters, that is a huge, exacting and difficult job, like I already said. Worse, you haven't the faintest idea whether that is really all that needs to be done. None of us do, either. This is one of those situations where you can't really know what parts you need until you tear into the thing and assess the damage.

Talk to a pro. And bring your wallet.
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Old 09-18-2012, 10:24 PM
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Quote:
Originally Posted by Zeichen311 View Post
Talk to a pro. And bring your wallet.

First things first!

Boroscope that Jose t'see what's there. Prob a spark plug piece - hope it ain't injector or [worse] a piece of valve. Extract if can do.

Photograph; post here.
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Old 09-19-2012, 01:51 AM
anE934fun anE934fun is offline
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I tend to doubt that installing a cylinder sleeve is going to be a realistic solution. The smallest unit that BMW sells is a complete block with pistons. The dealer basically wants to swap out a short or long block so they are not on the hook for any engine issues down the road.
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Old 09-19-2012, 04:36 AM
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Zeichen311 Zeichen311 is offline
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Originally Posted by CALWATERBOY View Post
Boroscope that Jose t'see what's there. Prob a spark plug piece - hope it ain't injector or [worse] a piece of valve. Extract if can do.
Falls under "talk to a pro"--based on posts so far, d'ya really think OP knows his way around the business end of a borescope?

(anE934fun, I'm inclined to agree but figure it's at least worth asking an indie. I wonder if certain BMW blocks can be relined at all--thinking here of the Mg-Al block in the N52.)
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  #11  
Old 09-19-2012, 05:25 AM
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Quote:
Originally Posted by ane934fun View Post
i tend to doubt that installing a cylinder sleeve is going to be a realistic solution. The smallest unit that bmw sells is a complete block with pistons. The dealer basically wants to swap out a short or long block so they are not on the hook for any engine issues down the road.

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Last edited by CALWATERBOY; 09-19-2012 at 05:30 AM.
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  #12  
Old 09-19-2012, 05:32 AM
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Originally Posted by Zeichen311 View Post
Falls under "talk to a pro"--based on posts so far, d'ya really think OP knows his way around the business end of a borescope?)

Instructions to OP:
Eyepiece end does NOT go into the cylinder!

Other end goes through spark plug hole.

Good luck! Post pics here!
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  #13  
Old 09-19-2012, 05:36 AM
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Quote:
Originally Posted by anE934fun View Post
I tend to doubt that installing a cylinder sleeve is going to be a realistic solution..
Hard to say w/o data.

However, that sleeve isn't going to be easy to source. BMW, like some others, modifies the piston surface of the sleeve for performance. "Red's Machine Shop" can't dup.
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  #14  
Old 09-19-2012, 09:37 AM
ctuna ctuna is offline
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The Block is magnesium aluminum.

The Block is magnesium aluminum I don't know if that can be re sleeved if then its
a total motor teardown.
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  #15  
Old 09-19-2012, 09:50 AM
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Orient330iNYC Orient330iNYC is offline
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i dont think you'll be able to add a sleeve to the N52-- its an aluminum block with a ceramic coating on the cylinder bores. will be much cheaper to replace the engine with one out of a junked car.
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  #16  
Old 09-19-2012, 10:57 AM
Joe in Dublin Joe in Dublin is offline
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U need to find out what was in the cylinder chamber and is there damage to the cylinder wall. If so, short block for u. I dought u can re sleeve these motors. I watched a movie about how the blocks are made. The sleeve looked to be a added , fused part of the mag block.
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