930 running in
Discussion
Hi Guys,
i just built my first Porsche engine, a 930. Complete build, with new cylinders, bearings etc.
I just started it up on an engine stand to look for oil leaks.
Generally its all fine. Engine responsive, no ill noises etc. BUT it has some oil smoke, which I assume normal at this stage.
I am a bitt puzzled though on the best running in method. The Porsche is big bore, with a rather smooth honed nicasil cylinder. What is the bset method to make an oil tight engine? Please reason Your opinion if possible.
Thanks in advance!
i just built my first Porsche engine, a 930. Complete build, with new cylinders, bearings etc.
I just started it up on an engine stand to look for oil leaks.
Generally its all fine. Engine responsive, no ill noises etc. BUT it has some oil smoke, which I assume normal at this stage.
I am a bitt puzzled though on the best running in method. The Porsche is big bore, with a rather smooth honed nicasil cylinder. What is the bset method to make an oil tight engine? Please reason Your opinion if possible.
Thanks in advance!
FordPrefect56 said:
Hello grasshopper. Glad to see you still alive. New screen name for reasons I won't go into on here. No smoke is not normal even before running in. Nikasil is a can of worms. If the bores are not good there's not much you can do about it now.
After setting the K-jet the oil smoke disappeared. The bores/pistons are brand new (original Mahle). Piston.bore clearances checked - at factory give tolerances. FordPrefect56 said:
Hello grasshopper. Glad to see you still alive. New screen name for reasons I won't go into on here. No smoke is not normal even before running in. Nikasil is a can of worms. If the bores are not good there's not much you can do about it now.
I was thinking if the alusil need any special method of running in (?)Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff