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Hey all, picked up a 2001 ex coupe for cheap. Previous owner thought it had a spun rod bearing, well he was wrong because it had two lol. I can feel some scratches on the crankshaft and I know you can't really resurface it as it won't be able to hold up. So my options are swap in then D17a2 that came out of mine when I did a K swap (250k miles) or replace the crankshaft. If I go to the junkyard I can grab another crank for under $40. Am I ok swapping another in as long as it isn't damaged and I replace the main/rod bearings as well? I don't really want to mess with the engine I have because the VIN matches the other em2 I have and I'm not sure I want to lose that even though I'll never go back.

 
Rep Power: 519

It needs connecting rods on whichever throws ate the bearings.
Replace the engine (usually with a used unit) that's the quickest and simplest.
No it won't be $40, but you won't be wasting $40 on a crank and still needing an engine when you find out it knocks after you're done......and there's probably a ton of metal shavings in the oil passages and in the head.

Crank swap isn't exactly great because of trying to dial in bearings as was done originally at the factory. (RTFM for more info on selective fit bearings)......and there's probably a ton of metal shavings in the oil passages and in the head.


Nobody gives a poot about matching the engine VIN with the body, these won't ever be collector cars.

Edit: Do you already have the pistons pulled? Got a couple more good ones with rods, with the same size code ?? (RTFM again for piston and rod sizing info) Any decent machine shop can take care of the crank, and get you whatever bearings are needed to work with whatever they grind.

 
Rep Power: 225

Thanks for the reply Ezone. I never thought about the metal shavings being in all the oil passages, the oil pan certainly looked like a gold mine. To answer your question no I didn't pull out the pistons, just the crank. I think I'm just going to throw my old motor in after replacing a few seals and cleaning out the EGR runners in the intake manifold. 250,000 miles is quite high but I know it was taken care of and was running when I pulled it.

 
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Didn't realize I had two accounts on this forum

 
Rep Power: 123

The engine i'm building up previously spun a bearing and the machine shop said it was 30 thousands out of round. The owner of the shop said they couldn't get it back to round and find a bearing set to fit...He said to get them another crank...which i had in a spare engine.

I agree with ezone.

Go and spend the $500-$600 from a JDM importer for a used engine with aprox 35,000 miles on it. And while your at it, I would personally get a new gasket get and water pump since every thing is easy to get to.

 
Rep Power: 225

I don't really plan on keeping the car so I don't think a JDM swap is going to happen. I've picked up the hobby of buying cars with engine issues, fixing them up, and then reselling. So far I've done an '07 Accord and '03 EP3, both jumped time and bent valves. This is the first time I've had to do any lower end work.