78 911 Sc Thar She Blows
 

78 911 SC 3.0 88K MILES .....I HAD JUST REPLACED 6 INJECTORS AND SHE RAN FINE TWICE....BOSCHE CDI WENT SOUTH, REPLACED IT WITH A PERMATUNE ,RAN EVEN BETTER ....TEST DROVE IT 4 MILES AND SHE DIED PULLING INTO MY DRIVE. UPON RESTART SHE RAN 2K R.P.M. AND BLEW SMOKE LIKE A FOGGER. BLUE AND WHITE SMOKE . STARTS GOOD,SOUNDS GOOD , RUNS GOOD, LOOKS BAD.OIL CONSUMPTION LAST 1200 MILES 1 PINT. HAVE NOT ADDED OIL IN 1200 MILES, SHE ALSO HAS RPM DROP AND NEARLY DIES WITH OIL CAP OFF ,COMPRESSION TEST SOON......ANY IDEAS?

Oil overfilled? Only fill half way between the marks on the dipstick when the engine is at idle, fully warm on level ground. Any more, it will overflow when it gets hot.

(thinking happy thoughts for you that this is the problem)

Tom

On edit, 1 pint in 1200 miles is fine. Mine ate 1Q per 250 miles before it started smoking bad.

Also, the shift key is your friend. Caps=yelling.

Read the tech article in our tech section on "When to Rebuild" - this will give you a set of tests that you can perform to check your engine...

-Wayne

Wow..... things are now cleared up,no smoke runs great. Problem was no voltage to warm up regulator or the supplementary air valve,engine took 4 miles to warm up and die ( idle was not set correctly, due to the new injectors) with engine off ,I pulled a tight 90 degree turn sloshed oil to high in the case, and made a 5 minute smoke machine. I am a happy camper thanks to John Walker and this wonderfull board.

Hmm, that typically shouldn't happen with these cars - they are designed for that with the dry sump...

-Wayne