My worst fear!!

Thread Tools
 
Search this Thread
 
Old 02-13-2013 | 03:46 PM
  #1  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
My worst fear!!

I had hoped against hope that I had nothing but a bad head gasket causing the billowing out of my tailpipe.
However I got the head off today and it sure looks like my head gasket is fine.
So I am afraid it is rings.
So that means I have to save up for at least a year before I can have my engine rebuilt!
Old 02-13-2013 | 06:02 PM
  #2  
Skwerly's Avatar
Mopar Lover
 
Joined: Jan 2010
Posts: 1,296
Likes: 118
Ouch. Well, my dad replaced the pistons and rings IN THE VEHICLE. It wasn't easy, but he did it.
Old 02-13-2013 | 06:14 PM
  #3  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
That is too much work for me. I felt like I was going to pass out just getting the freaking head off. the hell with it, let the damn car sit in my garage and rot!
Old 02-13-2013 | 06:41 PM
  #4  
PK1's Avatar
PK1
Mopar Lover
 
Joined: Jul 2011
Posts: 681
Likes: 106
Flip the heads over and lock for a crack in the casting between the exhaust and intake valve from the combustion chamber side.
Old 02-13-2013 | 07:44 PM
  #5  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
Oh I can't tell. I could have sworn I had white smoke. Maybe I imagined the water level in the radiator going down.

Maybe one day, years from now when I am dead, somebody will find this hulk sitting in a garage or a field!
Old 02-13-2013 | 08:06 PM
  #6  
Chryco Psycho's Avatar
Mopar Fanatic
 
Joined: Sep 2012
Posts: 369
Likes: 43
White smoke / antifreeze has nothing to do with the rings , they only control the oil , if you are losing coolant it could ba a crack in the block near a frost plug or just a bad frost plug , a cracked cylinder wall , the oil should be milky if so or a bad gasket of cylinder head
Old 02-14-2013 | 04:19 AM
  #7  
78D200's Avatar
Admin
 
Joined: Apr 2008
Posts: 8,173
Likes: 200
From: Goffstown, NH
Have the heads pressure checked or magna-fluxed. That will let you know if the heads are or are contributing to the issue.
Old 02-14-2013 | 05:55 AM
  #8  
62Furious's Avatar
Mopar Lover
 
Joined: Oct 2009
Posts: 722
Likes: 19
From: SOUTH EAST WISCONSIN
It sounds like you are giving up. Not cool. There are plenty of people that will help you find the problem and solve it.
Find an engine builder near you, a good one will tell you what it will cost and how you can keep your price down, and what you can do your self.
Old 02-14-2013 | 12:41 PM
  #9  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
Could the head be damaged in some way that I can not see, which would let water in to the cylinder? The water passages look pretty rusty. If so how do I find out?
Old 02-14-2013 | 01:19 PM
  #10  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
OK heads are off the car. Is there any way to tell if the rings are bad. Would the cylinders be scored or anything?
Old 02-14-2013 | 01:44 PM
  #11  
TWIN_ZJ'S's Avatar
New Member
 
Joined: Feb 2013
Posts: 4
Likes: 0
From: Willmar, Minnesota
Do you have headers and dual exhaust on that car? If so was it only white smoke out the one side? May only need to fix the one side.
Old 02-14-2013 | 02:28 PM
  #12  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
I have the original Magnum exhaust manifolds. Dual exhaust. I am not actually sure if it was white smoke. It is getting hard to tell (my eyes are not what they were)

Well I am getting my head magnafluxed Monday. If it is good I am going to go after the rings next.
Old 02-14-2013 | 02:48 PM
  #13  
TVLynn's Avatar
Mopar Lover
 
Joined: Apr 2011
Posts: 4,282
Likes: 387
The back cyl looks fairly clean ? An indication it is blowing oil or coolant. IF the motor sat for years ? the rings are probably gummed up
Old 02-14-2013 | 06:47 PM
  #14  
PK1's Avatar
PK1
Mopar Lover
 
Joined: Jul 2011
Posts: 681
Likes: 106
Magnums were VERY prone to cracking between the seats. Machinist is going to magnetize the heads and then shake a magnetic powder on the head in different areas. The powder will get stuck in the micro crack to reveal its location. You can save money by labeling the valves and each corresponding chamber, then disassemble the heads and springs.



Unfortunately is is very easy to test for bad rings with the heads on and since yours are off you cant preform the test.
Old 02-16-2013 | 08:13 AM
  #15  
pro-tech's Avatar
Mopar Lover
 
Joined: Jan 2013
Posts: 1,281
Likes: 145
From: Cobleskill,N.Y.
What did the intake gaskets look like?? they can also leak causing the same problem. One thing for sure it is not a piston or ring problem. Was there intermix in the oil????? Also when you get it back together before you start it make sure you change the oil. Look for sign of wash down on the pistons (one piston real clean) also look in the intake and heads for a clean runner this will point you in the right direction as to where the leak is. Good luck Dont ever give up!! we are all here to help you through your problem, We've got this but you have to be our eyes.

Last edited by pro-tech; 02-16-2013 at 08:20 AM.
Old 02-16-2013 | 08:19 AM
  #16  
pro-tech's Avatar
Mopar Lover
 
Joined: Jan 2013
Posts: 1,281
Likes: 145
From: Cobleskill,N.Y.
This engine by the picture look like a fairly freash rebuild. It looks like there is a crosshatch pattern in #8 cylinder also the paint looks pretty fresh. Do you know anything about the car?? Or whats been done to it??
Old 02-16-2013 | 05:46 PM
  #17  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
Not much. The guy I bought the car from was in the middle of a move. I cannot reach him.

It always sounded like it was running fine. It does have a custom cam. So even that was hard to say.

The motor came out of a wrecked 1996 Dodge Ram.

I was never sure but I think the smoke was white, it was hard to tell.

Oh here is the cam info.

Cam is a custom grind from Oregon cam grinders using the stock cam blank, push rods are comp cams .050 longer then stock.

The cam specs were .496/.496 lift at 1.6 ratio rockers (stock) and .224/.224 duration at .050 lift on a 112 lobe separation.
Old 02-16-2013 | 06:02 PM
  #18  
Coronet 500's Avatar
Mopar Lover
 
Joined: May 2011
Posts: 2,732
Likes: 359
From: Ontario Canada
If your somewhat handy you could make what I have. A 4 hole plate, tapped in center for air fitting and a thick rubber gasket. I bolt it on one cylinder and do a leakdown or blowby test with air to check rings only.
Old 02-16-2013 | 06:36 PM
  #19  
Shrug's Avatar
Thread Starter
Mopar Fanatic
 
Joined: Jun 2012
Posts: 106
Likes: 0
From: Laveen, AZ
Originally Posted by Coronet 500
If your somewhat handy you could make what I have. A 4 hole plate, tapped in center for air fitting and a thick rubber gasket. I bolt it on one cylinder and do a leakdown or blowby test with air to check rings only.
Hey can I get a photo of that please?
Old 02-16-2013 | 08:36 PM
  #20  
Coronet 500's Avatar
Mopar Lover
 
Joined: May 2011
Posts: 2,732
Likes: 359
From: Ontario Canada
It's a simple 3/8" or 1/2" thick piece of plate steel with a hole in each corner for a short bolt into the block.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
moe7404
General Discussion
8
11-21-2014 12:07 PM
70fury383
General Discussion
11
09-27-2012 05:55 PM
Frank the Tank
General Discussion
9
10-17-2010 06:10 PM
Moparknighthawk
Off Topic
0
03-22-2010 06:49 AM
heminate
General Technical Questions
6
07-28-2009 07:31 AM




All times are GMT -7. The time now is 08:35 PM.