Oil change and smoke

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Scott Halperin
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Joined: Sat Nov 19, 2016 11:06 pm

Oil change and smoke

#1 Post by Scott Halperin » Sat Jun 03, 2017 2:05 am

I just changed the oil on my 356 I am noticing some smoke out the tail pipe that was not there before. I used Valvoline VR1 Racing 20W50. I am seeing around 50psi at about idle. Is it possible that this oil is generating too much oil pressure and causing some blow by? This was the only oil I could find with higher levels of zinc.

Thanks

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Doug McDonnell
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Location: Augusta,Michigan

Re: Oil change and smoke

#2 Post by Doug McDonnell » Sat Jun 03, 2017 7:42 am

50 psi at idle on a cold engine is not too high. What have you done to the engine recently besides oil change? What is the level on the dipstick?
1965 356C There is never enough time to do it right, but always enough time to do it over.

Scott Halperin
356 Fan
Posts: 80
Joined: Sat Nov 19, 2016 11:06 pm

Re: Oil change and smoke

#3 Post by Scott Halperin » Sat Jun 03, 2017 5:05 pm

I rebuilt the carbs. Might be running rich.

Dick Weiss
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Re: Oil change and smoke

#4 Post by Dick Weiss » Wed Jun 21, 2017 9:44 pm

Scott,

Which carbs exist? Complete carb kits, or just gaskets? Were the float levels adjusted to specs?

Dick

Scott Halperin
356 Fan
Posts: 80
Joined: Sat Nov 19, 2016 11:06 pm

Re: Oil change and smoke

#5 Post by Scott Halperin » Fri Jun 23, 2017 1:16 am

Dick,

I have Weber 40s. They were rebuilt with complete kits. The float levels were set. I still need to adjust them. So far it seems that after sitting for awhile there is some smoke, but running for 15-20 minutes clears it up.

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