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 Post subject: Oil change and smoke
PostPosted: Sat Jun 03, 2017 2:05 am 
356 Fan

Joined: Sat Nov 19, 2016 11:06 pm
Posts: 52
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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 Post subject: Re: Oil change and smoke
PostPosted: Sat Jun 03, 2017 7:42 am 
356 Fan
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Joined: Sat Apr 05, 2008 8:21 am
Posts: 2508
Location: Augusta,Michigan
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?

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1965 356C and 1965 C Outlaw


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 Post subject: Re: Oil change and smoke
PostPosted: Sat Jun 03, 2017 5:05 pm 
356 Fan

Joined: Sat Nov 19, 2016 11:06 pm
Posts: 52
I rebuilt the carbs. Might be running rich.


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 Post subject: Re: Oil change and smoke
PostPosted: Wed Jun 21, 2017 9:44 pm 
356 Fan

Joined: Sun Apr 20, 2008 12:54 am
Posts: 2551
Scott,

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

Dick


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 Post subject: Re: Oil change and smoke
PostPosted: Fri Jun 23, 2017 1:16 am 
356 Fan

Joined: Sat Nov 19, 2016 11:06 pm
Posts: 52
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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