White smoke
 

Dear friends:

('74 280, M110, weber 38DGAS) 700 miles on rebuilt engine, rebuilt head from Adsit... 46K on original AT- replaced filter and fluid)

I've noticed white smoke (classic oil burning appearance/stink) from the tailpipe while idling-

I've read previous discussions about vacuum modulators, its hookup to the manifold, and I wonder if it might have anything to do with the smoke.

I notice that the AT level is past the line on the dipstick- could this cause an overpressure on the line that goes to the intake?

Input please...

Thanks as always,
Will

Will,

Since no one else has answered, I thought a fellow Minnesotan might give it a shot.

Does the smoke go away once the car warms up? If so, it can be as simple as a touch of seepage past the pistons when the car sits overnite OR, unburned gas seepage due to leaky injectors. Just watch your oil consumption, and if ok, don't give it a lot of worry.

No, the vacuum modulator shouldn't be a culprit IMHO. Unless you begin to detect a hint of slippage during upshifts, the modulator is ok.

My 280 is wierd in tranny level readings too. I'm told it is common that they read too high when measured hot AND that if overfull (within reason) the excess will just blow out of the finned openings near the front which will be noticed in my case anyway only by garage floor drips.

Will,

The trans modulator is a possible suspect. Take the line offat the modulator and see if oil drips out. Also an over filled trans can cause foaming of the oil and overheating of the trans. If you have a vacuum pump for the brakes on the front of the engine, loosen the screws on the front cover and see if the diaphragm is torn. Oil will drip out if it is.

Peter

Re: White smoke
 

White usually means water rather than oil (blueish) ..