R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Final Considerations After Engine Swap?

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Old Feb 24, 2022 | 10:17 PM
  #1  
cagersguy55's Avatar
cagersguy55
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Final Considerations After Engine Swap?

Hey guys,

tomorrow my new (used) motor will be good to drop back in my car. This is my first engine swap ever so I want to make sure I’m covering all of the bases. What are the precautions, steps, etc to ensure this is successful?

So far aside from ensuring all fluids are in the car and doing a few no spark cranks to get oil moving all I can think of is the clutch break in (obvious). What else should I be doing?

Thanks!
 
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Old Feb 25, 2022 | 07:22 AM
  #2  
AcidK1's Avatar
AcidK1
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From: Shropshire, UK
Make sure to bleed the coolant properly.

Did you disconnect the clutch slave cylinder? If you did they are a ***** to bleed.

Other then that I'm not much more help,
 
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Old Feb 25, 2022 | 08:41 AM
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cagersguy55's Avatar
cagersguy55
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Originally Posted by AcidK1
Make sure to bleed the coolant properly.

Did you disconnect the clutch slave cylinder? If you did they are a ***** to bleed.

Other then that I'm not much more help,
i bought a new one to install but after hearing how bad they are I’m tempted to just keep rocking mine lol
 
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Old Feb 25, 2022 | 07:23 PM
  #4  
dmath's Avatar
dmath
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From: Western NC
No advice but GOOD LUCK!
 
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Old Feb 26, 2022 | 12:37 PM
  #5  
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Racingguy04
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Originally Posted by cagersguy55
i bought a new one to install but after hearing how bad they are I’m tempted to just keep rocking mine lol
yup, if you didn't disconnect the slave cylinder, I'd just connect it back to the trans and keep rocking.
 
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Old Feb 26, 2022 | 12:53 PM
  #6  
AcidK1's Avatar
AcidK1
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Joined: Aug 2021
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From: Shropshire, UK
The way I did it was;

-open up bleed valve on new cylinder
-submerge bleed valve and pipe in hole in dot 4
-pump the plunger a few times
-take out and turn so plunger pointing down
-using a pre made tool compress the plunger and bolt tool on
-fit to the car and bleed again as you normally would, I used a pressure bleeder.

The tool is just a flat bar about 4-5 inches long, drill 2 holes same distance as slave bolt holes, in between those holes start drilling a hole but not all the way through, to stop the plunger slipping to the side. Using 2 bolts tighten the bar so it holds the plunger in, its messy as it will push all the dot 4 you pumped in earlier, out.

That worked for me, sounds hard but it's actually quite easy.

However, that worked for me, I only had to do it because I swapped out a midland gearbox for a getrag and the slave cylinder is in a different place.
 
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Old Feb 26, 2022 | 01:24 PM
  #7  
cagersguy55's Avatar
cagersguy55
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Originally Posted by Racingguy04
yup, if you didn't disconnect the slave cylinder, I'd just connect it back to the trans and keep rocking.
Originally Posted by AcidK1
The way I did it was;

-open up bleed valve on new cylinder
-submerge bleed valve and pipe in hole in dot 4
-pump the plunger a few times
-take out and turn so plunger pointing down
-using a pre made tool compress the plunger and bolt tool on
-fit to the car and bleed again as you normally would, I used a pressure bleeder.

The tool is just a flat bar about 4-5 inches long, drill 2 holes same distance as slave bolt holes, in between those holes start drilling a hole but not all the way through, to stop the plunger slipping to the side. Using 2 bolts tighten the bar so it holds the plunger in, its messy as it will push all the dot 4 you pumped in earlier, out.

That worked for me, sounds hard but it's actually quite easy.

However, that worked for me, I only had to do it because I swapped out a midland gearbox for a getrag and the slave cylinder is in a different place.
thanks for the write up, I think since I didn’t have any issues with mine I’m going to hold off for now at least. Plenty of other jobs that need to get done, and need to make sure this engine even runs 😂
 
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Old Feb 27, 2022 | 07:28 AM
  #8  
cooper48's Avatar
cooper48
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From: DFW, TX
Check out Mod Mini on YouTube. He has a video on the slave cylinder issue.
 
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