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Old 01-25-2004, 05:33 PM
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Join Date: Sep 2003
Location: san diego.ca.
Posts: 323
need help,190 2.3 has the same engine number

from 85 on up. i was told i needed a 87=88 motor for my 88 190e 2.3. the 91 engine does not work? ,but has the same engine number. going to bone yard tuesday. some of the motors do not have a body to them. hate to go to all the trouble installing a motor that will not work. can i put the 91 in using my manifolds.
any help would be nice . don't trust the person at the yard to know . he should, but i want to do this one time if possible.
did any 88's have a dual roller timing chain, mine does not.
thanks rich

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  #2  
Old 01-26-2004, 08:04 AM
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Join Date: Mar 1999
Location: Tucker, Ga USA
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The 1991-93 2.3 engine is different INSIDE! Different pistons & cylinder head!

YOU can use that engine in any 1987 & later chassis with the original intake & exhaust manifolds.
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1986 190E 2.3 16V 2.5 (sold)
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  #3  
Old 01-26-2004, 01:19 PM
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Join Date: Mar 2003
Location: New Hampshire
Posts: 158
I put a 91 engine in my 88 190e. My 88 had a single row chain and the 91 engine has a double. I had to use my old manifolds because the O2 sensor is in the manifold on the 91 and there is a pipe that goes from the exhaust manifold to the intake manifold on the 91. I also had to swap out a few sensors in the head to match up with my wiring harness. On the 91 engine the water pump has a temp. sensor, but on my 88 it was in the head so I just matched everything up, and it seems to work fine.

FYI....

About a month or so after i had the engine installed I noticed one of the chain guides was broken, and then after i replaced it , like a week later the plastic cover of my tensioner blade broke and I had to remove the front cover to replace. This was a pretty big project, there was just a lot of stuff to remove and deal with. So you may want to do yourself a favor and pull the front cover(which also requires the oil pan removed or lowered) and replace the chain guides, and tensioner blade. I wish i would have done this with the engine out of the car, before i had everything hooked up and so much more room to work!!

I got my engine from Pat at Potomac German Auto. Give him a call, he's super nice and great to work with!

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1988 190e 2.3 with 91 engine
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