White smoke.

Tech tips and how to's

Moderators: notoptoy, S Allen, Solex68, bmccarthy67

User avatar
mikeyfalcone
Roadster Fanatic
Posts: 175
Joined: Tue Sep 10, 2013 5:27 pm
Location: Antioch, Il

Re: White smoke.

Post by mikeyfalcone »

Checked dipstick still is golden color. Just changed the oil last year and have not driven car really at all. Just quite a few start ups and runs while looking and fixing other things. Took oil cap off and shined a flashlight into the area. Same color and not frothy. So those areas seem to check out as of right now. I'll try and get a video but the next time I start it I want to be able to run it for 30 minutes and unfortunately that probably won't be till Friday.
Mike

1968 Datsun 1600
User avatar
notoptoy
Vendor-Site Supporter
Posts: 9414
Joined: Fri Oct 02, 2009 2:55 pm
Location: Winston-Salem, NC and Ocala, FL

Re: White smoke.

Post by notoptoy »

I "feel" that you are good, and just burning off condensate in the exhaust, and fuel/stabilizer rich mixture. I am pretty confident that you are going to be fine after running it for a bit. Just my projected good wishes for you!
"When all else fails, force prevails!" Ummm, we're gonna need a bigger hammer here.

67.5 SPL311 H20 w/5 speed
65 Impala Convertible
2017 C43 AMG
User avatar
Datrock
Roadsteraholic
Posts: 918
Joined: Fri Feb 14, 2003 1:25 pm
Location: Oregon

Re: White smoke.

Post by Datrock »

I have seen engines with white smoke, not steam, after using Seafoam, it is an Fuel additive for all kinds engine ailments. So other additives may do the same, I agree with Skyman about dumping the old fuel...Bill
User avatar
mikeyfalcone
Roadster Fanatic
Posts: 175
Joined: Tue Sep 10, 2013 5:27 pm
Location: Antioch, Il

Re: White smoke.

Post by mikeyfalcone »

I used sea foam and stp fuel stabilizer. Awesome info guys.

notoptoy keep the good vibes coming!
Mike

1968 Datsun 1600
mateosau
Forum Newb
Posts: 1
Joined: Sun Jul 12, 2020 5:29 am
Location: Melbourne
Model: 2000
Year: High Windshield-68-70

Re: White smoke.

Post by mateosau »

I'm having a similar issue.

My project car is up to tuning stage. Starts like a charm. (has not been timed correctly yet) Chokes are on half way. If I turn them off, The engine dies.
If i keep the car idling, 1min later, smoke from around the carb area starts coming up. Manifold has new gasket. No water leaks underneath. oil is nice and golden.

Should i do a smoke test to find out if there is a leak somewhere?
I cant do a compression test because I'm scared to get it up to temp with all the smoke coming out after 1min.

1968 datsun 2000 U20
Mikuni Solex 44PHH Type Q.
User avatar
theunz
Roadster Nut-Site Supporter
Posts: 2011
Joined: Sat May 02, 2009 1:54 pm
Location: Catoosa Ok.
Model: 2000
Year: High Windshield-68-70

Re: White smoke.

Post by theunz »

Could possibly just be oil on the exhaust or paint burning off if you recently painted the exhaust. I would let it run a few minutes while monitoring the temperature gauge. Not at all unusual on a newly installed engine or one that has sat for an extended period.
Mike M

Old enough to know better, too old to remember why!


1969 2000 solex mine since 1972, under resurrection. (Finally resurrected as of spring 2019!) 1969 Porsche 911s -worth more, but not as valuable!
User avatar
Gregs672000
Roadster Fanatic-Site Supporter
Posts: 7741
Joined: Fri Aug 07, 2009 11:47 pm
Location: Tacoma, WA

Re: White smoke.

Post by Gregs672000 »

What Mike said...
Is this a new engine? Did you do the work? Any white color to the engine exhaust out the back? It needs the chokes on because it's lean most likely... exactly as designed. Did the engine run on these carbs before, or are they jetted for another car? How are you timing it?
Greg Burrows
'67 2000 #588
Tacoma, WA