RallyKeith Posted September 28, 2003 Share Posted September 28, 2003 Ok, So I'm finally rebuiling a motor for my RX. We started taking the block apart to find something partially blocking access to the wrist pin on one of the pistons! After getting the block completely apart we found it to be that the sleeve for the cylider had rotated maybe 15 degrees, and it isn't loose. :-\ So, my question is, has anybody ever seen this before and does this mean there is something wrong with the block? Thanks, Keith Quote Link to comment Share on other sites More sharing options...
toybuilder Posted September 28, 2003 Share Posted September 28, 2003 I have seen it before. Your block is toast. The engine got hot enough at some point for the aluminum to expand enough to let the sleeve float. Not repairable as far as I know. Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 28, 2003 Author Share Posted September 28, 2003 I forgot to mention, Both the Block and the heads appear to be straight. Neither of them appear warped. Also, this is the cylinder that sits next to the turbo. Keith Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 28, 2003 Author Share Posted September 28, 2003 Originally posted by toybuilder I have seen it before. Your block is toast. The engine got hot enough at some point for the aluminum to expand enough to let the sleeve float. Not repairable as far as I know. As I mentioned above everything still looks in spec. If I measure the inside bore of the cylinder and it is within spec for diameter and roundness can I use it? In other words, if all it did was spin and it's still round and at the correct height (Not recessed) why couldn't I use it? Keith Quote Link to comment Share on other sites More sharing options...
GLCraig Posted September 28, 2003 Share Posted September 28, 2003 A friend of mine had the same thing happen to his EA81. When the cylinder turned, it also tore up the piston pretty good. We also found a crack in the block, in one of the thin areas between the cylinder and a water jacket. If the block got hot enough the threads for the head bolts are probably in bad shape. You should put a head on and see if the head bolts will torque to spec. Personally I wouldn't try to reuse that block, you're probably best off looking for another Turbo block. Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 28, 2003 Author Share Posted September 28, 2003 Originally posted by GLCraigGT A friend of mine had the same thing happen to his EA81. When the cylinder turned, it also tore up the piston pretty good. We also found a crack in the block, in one of the thin areas between the cylinder and a water jacket. If the block got hot enough the threads for the head bolts are probably in bad shape. You should put a head on and see if the head bolts will torque to spec. Personally I wouldn't try to reuse that block, you're probably best off looking for another Turbo block. No visable cracks and the piston looks just like all the other in the engine. I'll be taking some pictures today, but everything seems fine. The head bolts required an impact gun to get out, but I'll try putting one on and see what happens. Keith Quote Link to comment Share on other sites More sharing options...
ccrinc Posted September 28, 2003 Share Posted September 28, 2003 Keith, This isn't as common in EA82 engines as it was in EA81s, so your block is definitely scrap metal. If it got hot enough to turn a cylinder sleeve (which are permanently pressed into the block), you'll never be able to trust it again. The head bolts will pull the threads as soon as you try to torque them, even if you chase the threads and wire brush the bolts. Believe me, in our shop, if we saw that, we might try to get the crank out, but most likely the whole thing would go in the scrap bin because all the internals are simply not trustworthy anymore, regardless of how good they may look. And believe me, you can't rebuild a block with a spun sleeve. Sorry, Emily http://www.ccrengines.com Quote Link to comment Share on other sites More sharing options...
Dr. RX Posted September 28, 2003 Share Posted September 28, 2003 Why did you get a rebuilt short block from CCR Inc. They built one for my, I had some rebuilt heads that I put on it, the motor is really strong. They do a go job, but they may have to charge you more since your block is not rebuildable. Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 28, 2003 Author Share Posted September 28, 2003 Originally posted by Dr. RX Why did you get a rebuilt short block from CCR Inc. They built one for my, I had some rebuilt heads that I put on it, the motor is really strong. They do a go job, but they may have to charge you more since your block is not rebuildable. The story goes like this. The motor in my RX spun a bearing. That said I knew I would need at least some new internal, but probably only the crank. Then I came across a dealer parts car that had a few things stripped off the motor like the water pump and oil pump, but was still a complete engine. Only problem was that it was a trade in and they thought the customer said it was overheated, but weren't sure. So for the $50 I bought it and proceeded to disassemble it. I've still got the complete motor in the car, so unless I could just get a short block from them at a reasonable price I'll probably just tear down the other motor and make 1 good out of the two. Keith Quote Link to comment Share on other sites More sharing options...
Dr. RX Posted September 28, 2003 Share Posted September 28, 2003 Sorry, I meant to say, "Why don't you get....." instead of "Why did you get....." I checked their prices out and by the time I had all the machining done (like turned crank) and bought all the parts, I would have had almost as much into the rebuild as they had quoted me. So I had them do a rebuild for me. Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 28, 2003 Author Share Posted September 28, 2003 Originally posted by Dr. RX Sorry, I meant to say, "Why don't you get....." instead of "Why did you get....." That's what I figured. I sent CCR an e-mail for a quote on the short block, but would you mind telling me what you paid? I already know I'm looking at about $200 for ring and bearings, but I already bought an engine gasket set, so that means I'll be "wasting" some already purchased parts. But then again it would be less work I have to do and a lot less time I'd have to spend, and time is money these days. Keith Quote Link to comment Share on other sites More sharing options...
RallyKeith Posted September 29, 2003 Author Share Posted September 29, 2003 Well, I've decided I'm just gonna make good with what I've got. I measured everything up last night and I've got a perfectly good crank and rods that don't require machining. I've also got heads and cams that are all in spec. The block and pistons should be fine in the original motor so it's just a matter of putting them all together. More time but less money than buying one. Keith Quote Link to comment Share on other sites More sharing options...
MilesFox Posted September 29, 2003 Share Posted September 29, 2003 was the motor is good working order before it came apart? chances are its still useable. i have used questional parts myself to find tem still good. Quote Link to comment Share on other sites More sharing options...
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