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Old Apr 30, 2012, 07:29 PM   #1
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Thumbs up Rebuilt my ACD Pump

Well after dealing with the ACD lights coming on/off for the past 30k miles (mostly on hot days) I finally fixed the problem. I've been browsing the forum and finding many members encountering the same issue, but with the only solution being a replacement from Mitsubishi...until now.

A fellow evoM member in Croatia developed a rebuild kit that is sold by acd tuning here in the sates. So I figured the pump is shot, what the hell...why not!

It took about 2 days because I was having some issues disassembling the unit but I contacted kikiturbo (creator of the kit) and he was very helpful in solving my problems.

So here's what I was dealing with;

Motor removed from the unit
Click the image to open in full size.

Severe corrosion along the bolts so I had do some extra cutting
Click the image to open in full size.

All 3 pieces
Click the image to open in full size.


So following kikiturbo's instructions from his video I began to clean the pump and begin the rebuild. Using a sharp chisel, some dremel sanding wheels and brake cleaner I was able to bring the pump back to life.

Click the image to open in full size.

Click the image to open in full size.

After reassembling the pump and testing to see if it worked I cleaned and painted the pump body. I then used some silicone for metal surfaces to seal all the seams.

Click the image to open in full size.

Click the image to open in full size.



Next step was to reinstall the pump, bleed the ACD and go for a test drive. Test drive went well NO LIGHTS


I will keep you guys updated as the weather gets hotter if the lights do come back. But after hearing the pump spin at a low rpm and build 10bar of pressure, I'm pretty confident that the problem is solved.
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Old Apr 30, 2012, 07:30 PM   #2
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here are the how to videos for anyone who hasn't seen them;

http://youtu.be/ZrYjQat4KGE

http://youtu.be/czXwPhJ6XkQ
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Old Apr 30, 2012, 08:40 PM   #3
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WOW, very nice!!q
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Old Apr 30, 2012, 10:24 PM   #4
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Old May 1, 2012, 03:57 AM   #5
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Davedangerous,
Do you drive your car during the Winter? Just wondering if road salt made your corrosion worse. I've wondered with where that pump is located that it gets slammed with lots of water and salt spray.
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Old May 1, 2012, 05:15 AM   #6
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on US cars it is not so bad because it is in front, on others it is in the back, right next to the back wheel..

Dave, that is one severely corroded pump.. I haven't seen it so bad.. (ok I have but that is on a evo X.. )

Glad you made it ok.

best regards

vlado
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Old May 1, 2012, 05:29 AM   #7
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Awesome!!!
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Old May 1, 2012, 07:16 AM   #8
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how much for the rebuild kit?
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Old May 1, 2012, 07:17 AM   #9
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it looks like a PITA to do
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Old May 1, 2012, 07:19 AM   #10
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Quote:
Originally Posted by njboy View Post
Davedangerous,
Do you drive your car during the Winter? Just wondering if road salt made your corrosion worse. I've wondered with where that pump is located that it gets slammed with lots of water and salt spray.
I do drive my car in the winter. New England winters and road salt definitely did it's damage (6 years & 92,000 miles)


Quote:
Originally Posted by kikiturbo View Post
on US cars it is not so bad because it is in front, on others it is in the back, right next to the back wheel..

Dave, that is one severely corroded pump.. I haven't seen it so bad.. (ok I have but that is on a evo X.. )

Glad you made it ok.

best regards

vlado
Thanks again for the help!
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Old May 1, 2012, 07:39 AM   #11
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how much and where can i get this kit?
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Old May 1, 2012, 08:02 AM   #12
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Quote:
Originally Posted by mostarac13 View Post
it looks like a PITA to do
I did lose my patience a couple of times But then I'd stop have a beer and think it over and then when I calmed down I'd work on it again.


Quote:
Originally Posted by blowngasket View Post
how much and where can i get this kit?
parts were 200, tool kit was another 200. You don't necessarily need the tool kit but it makes tasting and bleeding the pump a whole lot easier. http://acd-tuning.com
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Old May 1, 2012, 08:39 AM   #13
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Quote:
Originally Posted by blowngasket View Post
how much and where can i get this kit?
http://www.acd-tuning.com/
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Old May 1, 2012, 02:04 PM   #14
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Quote:
Originally Posted by Davedangerous View Post
I did lose my patience a couple of times But then I'd stop have a beer and think it over and then when I calmed down I'd work on it again.




parts were 200, tool kit was another 200. You don't necessarily need the tool kit but it makes tasting and bleeding the pump a whole lot easier. http://acd-tuning.com
Thank you bro
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Old May 1, 2012, 05:08 PM   #15
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Quote:
Originally Posted by Davedangerous View Post
I did lose my patience a couple of times But then I'd stop have a beer and think it over and then when I calmed down I'd work on it again.




parts were 200, tool kit was another 200. You don't necessarily need the tool kit but it makes tasting and bleeding the pump a whole lot easier. http://acd-tuning.com
Would you say that the cost of the service from ACD-Tuning is fair after going through it yourself? Good job by the way
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Old May 1, 2012, 05:08 PM
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