New crate engine is now a steam engine....bad problem...
Racer
Joined: Feb 2006
Posts: 433
Likes: 0
From: Show me a cold beer and I will show you a happy man Maryland
Man, just going over this thread, I hope they take care of you. I think that if they dont they are going to loose alot of buisness 18,000 views of this thread, not good advertising. Good luck 
Pro
Joined: Oct 2004
Posts: 567
Likes: 0
From: Springhill Kansas
Originally Posted by James.70
Man, just going over this thread, I hope they take care of you. I think that if they dont they are going to loose alot of buisness 18,000 views of this thread, not good advertising. Good luck
Melting Slicks
Joined: Aug 2004
Posts: 2,063
Likes: 1
From: Beverly Massachusetts
Originally Posted by Matt 1980 L-82
I've never really inspected used oil before... so would I be able to see these bits of metal in the oil?
Advanced
Joined: May 2005
Posts: 82
Likes: 0
From: London Ontario
Originally Posted by shafrs3
It's being worn away in small quantities, like tire wear, and ends up in the oil.
This was in response to someones post, now that post has disappeared.
This was in response to someones post, now that post has disappeared.
So, I don't want to cause trouble here, but what is the actual explanation for the iron ridge? Can it be a bit of both or what? I like it when you knowledgeable guys debate. I learn a lot from it.
Advanced
Joined: May 2005
Posts: 82
Likes: 0
From: London Ontario
Originally Posted by shafrs3
Why then is there no ridge on the bottom?
Even if the piston is removing material from the cylinder, shouldn't there still be a ridge at the bottom? The ring stops in the cylinder at the bottom of the stroke too. It seems like either of the explanations for the ridge would suggest a ridge at both ends of the cylinder.
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Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by James.70
Man, just going over this thread, I hope they take care of you. I think that if they dont they are going to loose alot of buisness 18,000 views of this thread, not good advertising. Good luck
Le Mans Master
Joined: Jan 2006
Posts: 6,506
Likes: 139
From: Butler Pa
Originally Posted by MotorHead
Except for heat, alot hotter at the top of the cylinder where combustion takes place, that probably has a lot to do with it 
Pro
Joined: Oct 2004
Posts: 567
Likes: 0
From: Springhill Kansas
Originally Posted by bashcraft
My guess is that the cylinder pressure is higher at the top of the stroke and the rings are pushed out against the cylinder harder. Cast iron actually is strongest at higher temperatures. The modulus of elasticity also decreases as its temperature rises (to a point, and then drastically falls off and reaches zero at the melting point). I think it reaches maximum strength at somewhere around 400*F.
Melting Slicks
Joined: Dec 2005
Posts: 2,441
Likes: 0
Originally Posted by Matt 1980 L-82
Even if the piston is removing material from the cylinder, shouldn't there still be a ridge at the bottom? The ring stops in the cylinder at the bottom of the stroke too. It seems like either of the explanations for the ridge would suggest a ridge at both ends of the cylinder.
You won't cause any trouble by debating a topic, and it is ok to say something that might not be true, accurate or right, I've done this many times and have been quickly set straight!
Lets face it, nobody right 100% all of the time. But this is how we all get a better understanding of our hobby. The only time you’ll get into trouble is if you post something that is or could be interpreted as being disrespectful to others, or just plain annoying, just look at Yellow73SB's past posts.Now, Twin_turbo suggests that cast iron material, over a long period of time, is being pushed like clay to the top of the cylinder forming that classic ridge that we see in a high mileage engine, if I'm understanding him correctly.
That ridge is formed from the contact of the rings with the cylinder wall. At the point of combustion, the rings are loaded to their fullest and are forced against the cylinder at TDC. As the piston travels down the cylinder wall, this load becomes progressively less, forming the classic cylinder taper that is seen in a high mileage engine. That is why there is no ridge at the bottom. If the clay theory were true, then cast iron would be pushed down the cylinder walls and re-deposited along the length of the stroke, and eventually the engine would seize.
Last edited by shafrs3; Mar 10, 2006 at 10:03 AM.
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
Originally Posted by Twin_Turbo
I agree...I was totally wrong .
.I'f everyone who looked at this thread donated 10 cents we could buy him a new motor.
I'll make sure the money is taken good care of 
Burning Brakes
Joined: Sep 2004
Posts: 1,167
Likes: 2
From: Ft.Worth Texas
Originally Posted by Twin_Turbo
your sidewall scuffing is still a result of too much body roll ... but let's not get into that. I'll be the 1st to admit here that what I said was wrong
... but let's not get into that. I'll be the 1st to admit here that what I said was wrong
Instructor
Joined: Feb 2005
Posts: 136
Likes: 0
Hate to add to the maddness this thread is longer than hell! but do we have a verdict yet I have read the thread and got confused !
Is there anything that can be done as a group maybee everyone that answered to this thread could call the company and bitc* I think a few thousand motor heads calling would get there attention!
Is there anything that can be done as a group maybee everyone that answered to this thread could call the company and bitc* I think a few thousand motor heads calling would get there attention!