Welcome to the THE H.A.M.B. forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Go Back   THE H.A.M.B. > General Discussion > The Hokey Ass Message Board

Reply
 
Thread Tools Display Modes
Old 09-19-2008, 10:14 AM   #1
BlackCherryImpala
Grenade Inspector
 
BlackCherryImpala's Avatar
 
Join Date: Aug 2006
Location: Girard, KS
Posts: 126
Question Oil coming from exhaust 350 Chevy

I bought a 350 Chevy cheap from a 78 pickup that was rebuilt only 1600 miles ago. The problem is that is has some oil coming from the exhaust. I have built a number of small blocks but have never encountered this problem. What do you guys think? Is it possibly a valve guide or a bad valve seal or could it be something deeper like a broken ring or bad ring seating? The engine was built by a shop in the stock configuration and it was not making any abnormal noises when the oil began dripping from the exhaust. It did not smoke at all apparently.
Thank You,
BlackCherry
__________________
"Are you gonna pull those pistols or whistle Dixie?" Josie Wales
"Resist much, obey little." E.A.
offline   Reply With Quote
Old 09-19-2008, 10:19 AM   #2
Ebbsspeed
Alliance Member
 
Ebbsspeed's Avatar
 
Join Date: Nov 2005
Location: Shawnee, KS 66218
Posts: 2,967
Default Re: Oil coming from exhaust 350 Chevy

It has oil dripping from the exhaust, but it doesn't smoke? Are you sure it's not just sooty condensation (ie, dirty water)?
offline   Reply With Quote
Old 09-19-2008, 10:31 AM   #3
daddio211
Alliance Member
 
daddio211's Avatar
 
Join Date: Aug 2008
Location: St. George, Utah
Posts: 4,854
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by Ebbsspeed View Post
It has oil dripping from the exhaust, but it doesn't smoke? Are you sure it's not just sooty condensation (ie, dirty water)?

Yep, what Ebb said... but my first thought was a broken ring, or the gaps are all lined up in the rings. Have you checked compression?
__________________
Wife's '27 T Roadster build: http://www.jalopyjournal.com/forum/s...d.php?t=734383
Dad's '50 Ford Tudor: http://www.jalopyjournal.com/forum/s...d.php?t=861732
online   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 09-19-2008, 10:37 AM   #4
BlackCherryImpala
Grenade Inspector
 
BlackCherryImpala's Avatar
 
Join Date: Aug 2006
Location: Girard, KS
Posts: 126
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by Ebbsspeed View Post
It has oil dripping from the exhaust, but it doesn't smoke? Are you sure it's not just sooty condensation (ie, dirty water)?
I'm not for sure as I'm getting the information 3rd hand. You would think the heat from the exhaust would turn the oil into smoke. The retired gentleman that had it pulled it back out of his pickup stated that it was oil. I don't know how engine inclined he is, however, I know he owned a lumber company for 40 years. I looked at the exhaust ports and they did not have any unusual characteristics about them and the lifter valley appeared very clean.
Thank You
__________________
"Are you gonna pull those pistols or whistle Dixie?" Josie Wales
"Resist much, obey little." E.A.
offline   Reply With Quote
Old 09-19-2008, 10:41 AM   #5
Mudslinger
Senior Member
 
Mudslinger's Avatar
 
Join Date: Aug 2005
Location: Dayton, Ohio
Posts: 1,954
Default Re: Oil coming from exhaust 350 Chevy

What about an exhaust valve oil seal leaking? Or missing?
__________________
Looking for 49-50 Oldsmobile Grille and Bumper.
41-48 Ford passenger sheet metal.
offline   Reply With Quote
Old 09-19-2008, 10:42 AM   #6
Bluto
Old School HAMBer
 
Bluto's Avatar
 
Join Date: Feb 2005
Location: Eastern Front
Posts: 2,898
Exclamation Re: Oil coming from exhaust 350 Chevy

I'd be hangin qt cans off the pipe an' selling it!!
offline   Reply With Quote
Old 09-19-2008, 10:45 AM   #7
Searcher
Member
 
Searcher's Avatar
 
Join Date: Jul 2007
Location: SoCal
Posts: 568
Default Re: Oil coming from exhaust 350 Chevy

What do the plugs look like ?
offline   Reply With Quote
Old 09-19-2008, 10:45 AM   #8
BlackCherryImpala
Grenade Inspector
 
BlackCherryImpala's Avatar
 
Join Date: Aug 2006
Location: Girard, KS
Posts: 126
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by 31tudor_utah View Post
Yep, what Ebb said... but my first thought was a broken ring, or the gaps are all lined up in the rings. Have you checked compression?
I haven't checked anything as it is sitting on a stand. I think I'll likely just take the heads off first and check them out and also inspect for a broken ring and if that doesn't work I'll start pulling pistons. I had not thought of someone being so careless as to lining up the rings, but a shop in a hurry very well could have done just that. The gentleman that owned the engine spent somewhere around $2000 on the rebuild, and when he discovered the problem spent another $2600 for a new engine. He must really love his 78 Cheyenne.
Thanks for the replies.
BlackCherry
__________________
"Are you gonna pull those pistols or whistle Dixie?" Josie Wales
"Resist much, obey little." E.A.
offline   Reply With Quote
Old 09-19-2008, 10:56 AM   #9
dirty old man
Alliance Member
 
dirty old man's Avatar
 
Join Date: Feb 2008
Location: Griffin, GA
Posts: 1,822
Default Re: Oil coming from exhaust 350 Chevy

My thoghts also lean towards condensate water colored black with carbon.
Before I pulled the heads I'd just pull the exhausr manifolds if you haven't already, and check the exhaust ports in the heads for signs of oil.
It would take one helluva lot of oil to get enough to run out the erxhaust pipe and that Mutha would smoke like a coal powered train!
If it were mine and there wasn't any appreciable amount of oil in the ports I'd install that Mutha.
You just may have bought yourself a deal!
Keep us informed!
Dave
offline   Reply With Quote
Old 09-19-2008, 11:01 AM   #10
skwurl
Senior Member
 
skwurl's Avatar
 
Join Date: Aug 2008
Location: Jonesborough Tn
Posts: 1,629
Default Re: Oil coming from exhaust 350 Chevy

are you sure its oil and not waterand carbo dripping? I started my bike yesterday and got a facefull of wet carbon
offline   Reply With Quote
Old 09-19-2008, 11:02 AM   #11
Mudslinger
Senior Member
 
Mudslinger's Avatar
 
Join Date: Aug 2005
Location: Dayton, Ohio
Posts: 1,954
Default Re: Oil coming from exhaust 350 Chevy

What he said!
Your mufflers should be loaded with oil if its leaking that much.
__________________
Looking for 49-50 Oldsmobile Grille and Bumper.
41-48 Ford passenger sheet metal.
offline   Reply With Quote
Old 09-19-2008, 11:03 AM   #12
skwurl
Senior Member
 
skwurl's Avatar
 
Join Date: Aug 2008
Location: Jonesborough Tn
Posts: 1,629
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by BlackCherryImpala View Post
I haven't checked anything as it is sitting on a stand. I think I'll likely just take the heads off first and check them out and also inspect for a broken ring and if that doesn't work I'll start pulling pistons. I had not thought of someone being so careless as to lining up the rings, but a shop in a hurry very well could have done just that. The gentleman that owned the engine spent somewhere around $2000 on the rebuild, and when he discovered the problem spent another $2600 for a new engine. He must really love his 78 Cheyenne.
Thanks for the replies.
BlackCherry
Lined up rings will cause a loss of compression not oil loss or consumption.
offline   Reply With Quote
Old 09-19-2008, 11:23 AM   #13
BlackCherryImpala
Grenade Inspector
 
BlackCherryImpala's Avatar
 
Join Date: Aug 2006
Location: Girard, KS
Posts: 126
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by dirty old man View Post
My thoghts also lean towards condensate water colored black with carbon.
Before I pulled the heads I'd just pull the exhausr manifolds if you haven't already, and check the exhaust ports in the heads for signs of oil.
It would take one helluva lot of oil to get enough to run out the erxhaust pipe and that Mutha would smoke like a coal powered train!
If it were mine and there wasn't any appreciable amount of oil in the ports I'd install that Mutha.
You just may have bought yourself a deal!
Keep us informed!
Dave
There was no oil in the exhaust ports, only the normal black carbon. I think I'll pull the valve covers and check the valve seals and if they are ok I'll plug it into my parts truck. Maybe the man had the carb running too rich or the timing was off producing the carbon mixed with the condensation making it appear as oil. I know the man is a perfectionist and his ways may have led me into a nearly new engine for next to nothing. That would be great. i deserve a break today and I'm really not into McDonald's.
Thanks for all the replies. You are good men, and women.
BlackCherry
__________________
"Are you gonna pull those pistols or whistle Dixie?" Josie Wales
"Resist much, obey little." E.A.
offline   Reply With Quote
Old 09-19-2008, 11:34 AM   #14
Engine Pro 5X
Old School HAMBer
 
Engine Pro 5X's Avatar
 
Join Date: Feb 2008
Location: SAUSAGE CAPITOL US of A
Posts: 4,203
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by Bluto View Post
I'd be hangin qt cans off the pipe an' selling it!!
Isn't that normal ??? LOL >>>>.
__________________
GET IN THE TRUCK JETHRO!!! WE'RE GOING TO CALIFORNIA!!! SWIMMING POOLS!!! MOVIE STARS!!!***CAN I SHOW YOU MY BEST KIELBASA ???
offline   Reply With Quote
Old 09-19-2008, 11:53 AM   #15
Bluto
Old School HAMBer
 
Bluto's Avatar
 
Join Date: Feb 2005
Location: Eastern Front
Posts: 2,898
Exclamation Re: Oil coming from exhaust 350 Chevy

I got a couple race motors that 'make water' folks keep tellin me You blew a head gasket! It's like listening to my ex-wife ......... I just playing DEVO inside my head and keep nodding knowingly as if I was listening
offline   Reply With Quote
Old 09-19-2008, 12:01 PM   #16
Engine Pro 5X
Old School HAMBer
 
Engine Pro 5X's Avatar
 
Join Date: Feb 2008
Location: SAUSAGE CAPITOL US of A
Posts: 4,203
Default Re: Oil coming from exhaust 350 Chevy

Quote:
Originally Posted by Bluto View Post
I got a couple race motors that 'make water' folks keep tellin me You blew a head gasket! It's like listening to my ex-wife ......... I just playing DEVO inside my head and keep nodding
Do you have one of those clay pots on your noggin while listening to DEVO???? >>>>.
__________________
GET IN THE TRUCK JETHRO!!! WE'RE GOING TO CALIFORNIA!!! SWIMMING POOLS!!! MOVIE STARS!!!***CAN I SHOW YOU MY BEST KIELBASA ???
offline   Reply With Quote
Old 09-19-2008, 12:03 PM   #17
Bluto
Old School HAMBer
 
Bluto's Avatar
 
Join Date: Feb 2005
Location: Eastern Front
Posts: 2,898
Exclamation Re: Oil coming from exhaust 350 Chevy

PLASTIC!! Are we not men????

But my yellow suit don't fit no more

I do listen to Yellow
offline   Reply With Quote
Old 09-19-2008, 12:35 PM   #18
Cal Cowboy
BANNED
 
Join Date: Nov 2007
Location: Palos Verdes, California
Posts: 731
Default Re: Oil coming from exhaust 350 Chevy

When my rod with the SB 350 or my Goat (389) sit for a couple of weeks, they both have black water comming out of the exhaust. It's thicker than tap water because it has carbon in it. When I get home and the spots are dry I sweep up the carbon.
offline   Reply With Quote
Old 09-19-2008, 12:57 PM   #19
jonny o
Member
 
jonny o's Avatar
 
Join Date: Oct 2007
Location: Norwalk, Oh
Posts: 836
Default Re: Oil coming from exhaust 350 Chevy

Pcv sucking oil into the chamber? Plugs will obviously show that.
__________________
Yes, you can heat a 10x20 storage unit with an extension cord and a couple heat bulbs.
Jonny o
offline   Reply With Quote
Old 09-19-2008, 01:10 PM   #20
THE CHIEF
Member
 
THE CHIEF's Avatar
 
Join Date: Feb 2007
Location: MIAMI
Posts: 860
Default Re: Oil coming from exhaust 350 Chevy

yea i got black water coming out of 1 exhaust pipe, still dont know where the hell it comes from? any ideas? it does it sometime not always
__________________
I like my cars dragging ass, like a dog wit worms
offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 On

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 10:01 PM.