Smoke At Start-Up

[zeusimo]

Hey Guys,

I Have A 1985 El Camino 4.3 V6 And It White Smoke Comes Out During Start-Up
It Used To Burn LOTS Of Coolant At Start-Up And Normal Driving But I Had Some Spare Time And 200$ So I Tore It Apart And Had A Machine Shop Cut The Heads And Block (I Didn't Have A Blown Headgasket It Was Warped)
I Did This 2 Months Ago And The Coolant Level Doesn't Go Down At All Anymore
But White Smoke Still Comes Out Of The Tailpipe
Anyone Know What's Wrong??
Please Don't Tell Me That Its Just Humidity And It's Normal
The Smoke It VERY White, Thick, And Doesn't Dissipate Till Its A Block Away

Thanks In Advance

 

[beermonkey9417]

it could be that theres some leftover coolant in the exhaust system. do you have cats? maybe the chemicals in the burnt coolant did something to the cat to cause them to break down or flake off causing the white smoke. other wise whens the last time ya seafoamed it?

 

[RockSS]

does it smell like coolant it could be left over but it sounds like u still have a problem there.

 

[RITTER]

I would agree with the cat theory

If not, I would probably say you have a cracked head. Were the heads checked?

 

[zeusimo]

Thanks For The Replies 😀

Yes I Have A Cat That Came With Car And Still Using.
Whats Seafoamed?

I Wouldn't Know What Coolant Smells Like But My Truck Smells Like And Old Big Rig From Mexico

Yes, I Had The Heads And Block Magnafluxed And Machined No cracks

My Friend Came Up With The Same Thing, When The Engine Was Burning Coolant It Wasn't Good For The Cat And Messed It Up Somehow I Wouldn't Know About The Muffler, Then Again It's Really Far From The Engine. (Didn't Say Anything So I Could See You You Guys Would Come Up With)

 

[83hurst-olds]

The above is what I would normally think EXCEPT, when you first start it, the heat wouldn't be clear back to the cats immediately so I would think there would be some delay between startup and white smoke. I would be more inclined to think there is still a leak (maybe head gasket didn't seal) with the exception of the fact you aren't losing fluid.

The only other thing that comes to mind is back when I had a 200 metric transmission some valve went out in the transmission which allowed transmission fluid to be sucked through a vacuum tube into the carb or intake (I forget which) and it burned making a very thick whitish smoke, but if I recall it had a hint of blue to it.

I would try to fill all the fluids to exactly full as you can get them and monitor it for a bit. If nothing is obvious there, then I'd pull the plugs and do a compression check on each cylinder.

 

[VeryRegalSedan]

You should definatly chreck your transmission fluid, i totally agree with the above statement as i have seen it as well.

 

[zeusimo]

Will Do,
Ill Fill It Up And Check Every Few Days

 

[VeryRegalSedan]

Will Do,
Ill Fill It Up And Check Every Few Days

keep us posted

 

[zeusimo]

Is This What You're Talking About?
http://www.summitracing.com/parts/BMM-20234/?rtype=10

I Filled It To The Max lvl And Will Check On Dec 1st As I Don't Drive My Truck Alot I Will Try To Make A Vid So You Can See
Also It Was Just Above The Fill Line So It Was Running Low
Wouldn't Having That Valve Go Bad Cause Continuous Smoke?