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Old 10-13-2012, 15:41   #1 (permalink)
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Engine Interchange

Will a motor from a contour go into a zx2? I read that there are differences in the oil pan, exhaust manifold, fuel rail, pulleys and some of the mounts.. I already planned on changing the sensors and alternator and everything over from the old motor.. is the oil pan really different? I havent bought this other motor yet, but I was thinking about it..
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Old 10-21-2012, 19:35   #2 (permalink)
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Re: Engine Interchange

how about a 2002 focus? its still the same 2.0L ztec dohc... except it says "raised seam runner"? not really quite sure what that means, but I need to know if it will fit. Wanting to get this motor thursday when I get paid and need to put a deposit asap if it is interchangeable...
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Old 10-21-2012, 19:45   #3 (permalink)
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Re: Engine Interchange

the zx2 is a 99. newer timing style.
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Old 10-22-2012, 16:41   #4 (permalink)
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Re: Engine Interchange

I read that they are different. I don't really understand why. one site said its just the head that is different (I guess the focus doesnt have vct?).. but another said the focus engine's mounts are completely different. if it is just the head I still have an extra head with like 40,000 miles from a engine I bought that ended up being seized... so i still need to know if it is just the head or if it completely wont bolt in without fabricating new mounts (which I do not have the skill to do)?
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Old 10-23-2012, 07:54   #5 (permalink)
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Re: Engine Interchange

Are you changing for an upgrade or is the old one shot? When changing engines and there's not an exact match from model to model, it's generally best to get as much of the peripherals from the donor car as possible. As far as the motor mount, as long as the blocks are the same, the motor mounts from your car should fit the incoming engine. If there are considerable differences between the 2 models, particularly the years, the ECM has to be considered. As far as whether it's possible to make the swap, anything is possible, it's a matter of whether it exceeds what your capable of.

Is this change for a project or necessity?
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Old 10-23-2012, 15:38   #6 (permalink)
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Re: Engine Interchange

the old motor is shot. as far as i can tell the engines look identical except for the motor mount. would there be a big difference in the motors from a 99 zx2 to a 02 focus (donor car)? I was gonna use all the old sensors and wiring harness so it would work with the current computer. I am just trying to get a definitive answer, I may call the ford dealer tomorrow if i get a chance.. I don't really see any difference in them, and the motor mounts should be able to be changed I would think. I was originally going to wait until i had the resources ($) to rebuild it, but our situation has changed and i need to get it running asap. when we bought it I had taken the head off because it didnt run at all and the head gasket was bad. I knew fixing the head gasket would be a temporary fix because one of the pistons were busted and completely missing the top ring which is causing it to spit the oil out of the dipstick tube from the compression of the one cylinder, but i had to do what i needed to to get it home and out of my grandparents driveway...
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Old 10-24-2012, 18:37   #7 (permalink)
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Re: Engine Interchange

I'd try to keep the the same sensors with the same PCM's with the same engine. Ford has a tendency of changing the wiring on the PCM's, so unless you can confirm the pinouts are identical, you can get yourself into quite a pickle.
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