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c-mac

MP7 cup copper removal

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I just pulled the 6 copper cups from an 07 MP7. The last one left the tip in the head. I was using the puller that grips the larger area inside the cup. I have replaced many sets of stainless cups on mp8's. Any ideas on getting the piece out? I have the correct Mack tools to Install the new stainless cups for an mp8, Do you use the same tool to swedge the stainless cup in the mp7?

Edited by c-mac

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You will need to find the old tools that tapped the small diameter of the sleeve and the puller to get it out, not a big deal the get that small piece out. The installation procedure is the same for both 11 and 13 liter engines.

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As 689 said, the old tools with the tap and puller is the only way you're going to get that out. Unless your luck is like mine.

I broke one off in a d12 because I got lazy and didn't get it tapped all the way through. When I tried to tap it the rest of the way, it fell into the cylinder. Had to pull the head.

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20 minutes ago, steeler said:

As 689 said, the old tools with the tap and puller is the only way you're going to get that out. Unless your luck is like mine.

I broke one off in a d12 because I got lazy and didn't get it tapped all the way through. When I tried to tap it the rest of the way, it fell into the cylinder. Had to pull the head.

Been there as well, not fun. 

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thanks I got the correct 8.5mm tap from mack. I have the rest of the kit, the tap was just missing.

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