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E21, E30 General discussion and technical help for 1975-1991 3 series cars.

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Old 05-08-2005, 11:58 AM   #1
htp.bmw

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Engine Differences

sorry for the lengthy thread and big pictures, Im just so close to completion

Im currently doing an engine swap in my garage, no improvements just an engine without problems. my old engine dropped a main bearing.
Its my first time doing an engine swap so I have been learning alot.

This is the car I got my new engine from (donor car), as you can see there really isnt anything else that you can salvage (from Vines auto)



when I got the engine it was the same as far as I could tell when they were both sitting next to eachother on pallets in the garage. but now as I am nearing completion of the swap, I have found these differences

1. on my old engine, the fuel lines (2) go in one right under the other on the front of the engine near the radiator. on the new engine the setup was a line to the back of the fuel injector line and one to the front of it. I swapped the injection line from my old engine to the new one.

2. on the old engine, there was this metal piece to extend the hoses across the front of the engine to the lower part of the radiator



it attached here on the old engine



but those bolt holes dont exist on the new engine



Without these mounts I dont know how to get the hose from the top right side to the bottom left side.

Instead of the second mount for that metal cooling line... there is this



that isnt on my old engine, if anyone has a line that runs in here please tell me where it goes


so to sum up this large thread, here are my questions
1. how do I run the coolant line from the top right of the engine to the bottom left for the radiator without mounting that metal peice.

2. what line goes in that hole that has the cap in it?

All suggestions are greatly appreciated and thank you for your help in advance

-Casey
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Old 05-08-2005, 05:40 PM   #2
guywithblack88e30

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Damn Did Like A Big Rig Fall On The Donor Car???????
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Old 05-08-2005, 05:42 PM   #3
Addicted?

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that i was wondering about that.... seems like it rolled a few times... anyways good luck on the swap! a huge write up when you are done would be awesome!

David
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Old 05-08-2005, 08:26 PM   #4
htp.bmw

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Alright... After a day of searching around the net I found these diagrams of the cooling systems off of the engines.


here is the problem you will see

old engine coolant diagram



My new engine Diagram, this has that extra port(thats what i think its called ) #10 is the picture that I didnt know what it was



any ideas on how to make the first diagram work with the second one? the things that are the problems are how the lining gets to the reservoir and there is another port that wasnt on my old engine.....

thank you for your help I couldnt do it without you

-Casey
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Old 09-19-2007, 10:34 AM   #5
jdonline

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Quote:
Originally Posted by htp.bmw
Alright... After a day of searching around the net I found these diagrams of the cooling systems off of the engines.


here is the problem you will see

old engine coolant diagram



My new engine Diagram, this has that extra port(thats what i think its called ) #10 is the picture that I didnt know what it was



any ideas on how to make the first diagram work with the second one? the things that are the problems are how the lining gets to the reservoir and there is another port that wasnt on my old engine.....

thank you for your help I couldnt do it without you

-Casey
I wonder if you could plug the extra port with pipe plugs from Lowe's or Home Depot. I vaguely remember someone telling me that they did that once before in a similar situation. Good luck.

JD
Autopart Locater
Mobile, AL
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