The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-02-2015, 12:17 AM   #26
AcampoDave
Registered User
 
AcampoDave's Avatar
 
Join Date: Feb 2013
Location: central California
Posts: 2,759
Re: Light wispy smoke out of right bank at highway speed

Wow, I remember rain. Keep us posted. My only reservation on the intake is your description of "gushing oil". There really isn't any kind of pressurized source for a leak with regard to its' seal to the block. My smoking problem was an intake problem, but the smoke was coming out the tailpipe.

Last edited by AcampoDave; 08-02-2015 at 12:43 AM.
AcampoDave is offline   Reply With Quote
Old 08-02-2015, 01:09 AM   #27
AcampoDave
Registered User
 
AcampoDave's Avatar
 
Join Date: Feb 2013
Location: central California
Posts: 2,759
Re: Light wispy smoke out of right bank at highway speed

Where is your pcv valve located? In the pic you posted there appears to be a breather in each valve cover.
AcampoDave is offline   Reply With Quote
Old 08-02-2015, 02:45 AM   #28
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

I'll keep you guys abreast of this,....my ongoing nightmare. I have a breather in the passenger side and a breather style pcv in the other side...mr. Gasket I believe. Had the click style at one point and it behaved the same way as far as the gusher goes. Surely there must be galleys under full pressure in there since my oil pressure gauge is threaded into the intake. Fingers crossed and thanks for all the support.
ViviensTractor5110 is offline   Reply With Quote
Old 08-02-2015, 08:41 AM   #29
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,712
Re: Light wispy smoke out of right bank at highway speed

You better look at that again!
Your oil pressure gauge shouldn't be in the intake. No oil passages thru there.
Any time you've got a leak that gushes, you have a leaky pressure connection or excessive crankcase pressure.
geezer#99 is online now   Reply With Quote
Old 08-02-2015, 09:41 AM   #30
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

So that threaded connection in the block?....way in the back next to the distributor...haven't completely removed it yet so I can't tell.
ViviensTractor5110 is offline   Reply With Quote
Old 08-02-2015, 09:46 AM   #31
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: Light wispy smoke out of right bank at highway speed

Quote:
Originally Posted by ViviensTractor5110 View Post
So that threaded connection in the block?....way in the back next to the distributor...haven't completely removed it yet so I can't tell.
That one is on the block not the intake and it one of the oil pressure connections. There should be another by the oil filter.
__________________
68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
68gmsee is offline   Reply With Quote
Old 08-02-2015, 09:55 AM   #32
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

That being the case then I guess I'm chasing crank case pressure issues...since I've expended every possible galley under pressure
ViviensTractor5110 is offline   Reply With Quote
Old 08-02-2015, 10:10 AM   #33
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

Thankfully you guys talked me out of anything catastrophic....I know it's something ridiculous. Just have to find it.
ViviensTractor5110 is offline   Reply With Quote
Old 08-02-2015, 11:23 AM   #34
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,712
Re: Light wispy smoke out of right bank at highway speed

The biggest problem created by crankcase pressure is the multiple different leak locations. You fix one and the next one starts to leak.
Keep at it!
You'll find it!!
geezer#99 is online now   Reply With Quote
Old 08-02-2015, 01:16 PM   #35
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: Light wispy smoke out of right bank at highway speed

Quote:
Originally Posted by ViviensTractor5110 View Post
That being the case then I guess I'm chasing crank case pressure issues...since I've expended every possible galley under pressure
I usually remove the oil filler cap and feel to see if there's excessive pressure (blowby) from the crankcase. Should be very little if any on a good engine.

If you haven't found the oil leak already, as Ocampo Dave mentioned, wash the engine really good. Oil tends to travel and sometime difficult to find. When looking for hard to find leaks I buy a couple of cans of degreaser and pressure wash the engine really well. Then I use a mechanic's mirror and a flashlight for hard to see places.

I've had leaks on the rear of the valve cover and the rear intake gasket and oozing out of the oil sending fitting on the engine. The most common ones are of course oil pan and valve cover gaskets. Also, the rear main seal and front timing chain cover.
__________________
68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
68gmsee is offline   Reply With Quote
Old 08-03-2015, 04:12 PM   #36
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

Well...whatever it was, it is no longer. Thank god.

I was ready to drive it into the river.
ViviensTractor5110 is offline   Reply With Quote
Old 08-03-2015, 04:13 PM   #37
ViviensTractor5110
Registered User
 
Join Date: Mar 2015
Location: Arcadia FL
Posts: 112
Re: Light wispy smoke out of right bank at highway speed

Thanks for all the perspective guys.
ViviensTractor5110 is offline   Reply With Quote
Old 08-03-2015, 05:21 PM   #38
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,712
Thumbs up Re: Light wispy smoke out of right bank at highway speed

Quote:
Originally Posted by ViviensTractor5110 View Post
Well...whatever it was, it is no longer. Thank god.

I was ready to drive it into the river.
I'm sure glad!!
Was getting tired of your posts!! LOL!!!
Now lock the hood shut, put on your shades, never look under the truck and never ever let the wife follow you to look for smoke and get out there and drive the wheels off it!!
geezer#99 is online now   Reply With Quote
Reply

Bookmarks

Tags
400, exhaust, small block, smoke


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:44 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com