If one pulls an engine apart for a coolant seal replacement or to port the intakes or such, is the breakin period still 2000 miles, or can it be driven hard sooner? If all the parts are put exactly where they came from, they'll be making the same contact, and it shouldn't require any break in period, correct?

-=Russ=-

 

Yes but they still have been disturbed. They have been removed and even if put back in the same place still need time to reseal and reseat. Would you rather be able to run it hard now or run it hard for another 50,000 miles? Be patient a break-in now will save trouble later.

 

I know the feeling. I was just informed that I have to break my Pineapple motor in for 1500 miles. I'm dreading it! This my first RX7 and I'm chomping at the bit.

 

Fair enough. I was just curious, I'm debating tearing my engine apart this winter to put a street port on it.

-=Russ=-

 

Why are you not replacing parts?
If this is the original engine, you'd need to replace the corner seal rubber inserts and most likely the apex seals.
Replacing the apex seal springs are also highly recommended.

You go through all that trouble and no change certain wear items is going to make engine longevity questionable.
Why not pay a little extra to make sure you gain another 100k miles+ of engine life?


-Ted