Hello,
I wanted to know what the engine run-in procedure is for the 1500cc
engine as there is nothing in the Haynes manual.
My 911 rebuild book gives the following for the 911:
- turn in 30s blocks with starter to build oil pressure until there is
oil pressure and then an extra 15s
- run for 20minutes at 2000rpm to break-in the engine
- change the oil
- tune carbs rich
- 5 mile run varying engine speed without going above 4500rpm
- check everything
- 10 mile run varying engine speed without going above 4500rpm
- check everything
- 20 mile run varying engine speed without going above 4500rpm
- check everything
- 50 mile run varying engine speed without going above 4500rpm
- check everything
- change oil
- Cool down
- do 1000 miles in multiple runs
- change oil
- valve adjustment
- tune carbs
- done...
Regards, cyrille
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