Posted By: jnkgal
What do you think causes this ......................... - 03/31/09 11:45 PM
what would cause this kind of wear ???
What do you think causes this .........................
Posted By: amxautox
Re: What do you think causes this ......................... - 03/31/09 11:50 PM
piston/wrist pin? Broken out of the middle of the piston. Broken off small end of the rod. No lubrication.
Posted By: jnkgal
Re: What do you think causes this ......................... - 03/31/09 11:55 PM
Quote:
piston/wrist pin? Broken out of the middle of the piston. Broken off small end of the rod. No lubrication.
opps its a solid lifter standing on the piston I set it there it was closest place to set it down
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:00 AM
I am in procecss of a better photo stand by
Posted By: Waveraider
Re: What do you think causes this ......................... - 04/01/09 12:00 AM
Are you talking about the circle in the middle of the lifter? Please give more details.
Posted By: amxautox
Re: What do you think causes this ......................... - 04/01/09 12:01 AM
Duh.
Still lack of proper lube to cause the checking/galling around the edge and all.
Still lack of proper lube to cause the checking/galling around the edge and all.
Posted By: MowP4rsn
Re: What do you think causes this ......................... - 04/01/09 12:01 AM
Quote:Quote:
piston/wrist pin? Broken out of the middle of the piston. Broken off small end of the rod. No lubrication.
opps its a solid lifter standing on the piston I set it there it was closest place to set it down
That's what I was gonna say
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:02 AM
Quote:
Are you talking about the circle in the middle of the lifter? Please give more details.
in a few min and a better photo also
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:22 AM
here may be better photos
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:23 AM
two
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:26 AM
Quote:
Are you talking about the circle in the middle of the lifter? Please give more details.
yes its the only one like that and the "thingie"
LOL I mean lobe is scratched and the rest of them are fine and shineyI know a dry start may cause this but that was not done so what else could be the cause of this
Posted By: amxautox
Re: What do you think causes this ......................... - 04/01/09 12:29 AM
A small chunk of metal was stuck on the lobe under the lifter.
Posted By: johnnyrotten
Re: What do you think causes this ......................... - 04/01/09 12:30 AM
Poor valve adjustment, wrong spring pressure. Not likely a lack of lube if it only happened on one lifter, unless it was on break in and never noticed. 
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 12:42 AM
the circle worn spot is not a real physical its not gaulled its like its got slight chatter marks its more of a visual circle
lobe seems ok can I just put a new lifter in and keep an eye on it and play how long will it last?
lobe seems ok can I just put a new lifter in and keep an eye on it and play how long will it last?
Posted By: aarcuda
Re: What do you think causes this ......................... - 04/01/09 12:47 AM
lifters rotate in the bore. so the circle is normal. actually desired
Posted By: 70dart360
Re: What do you think causes this ......................... - 04/01/09 12:51 AM
Quote:
lifters rotate in the bore. so the circle is normal. actually desired
if the lobe looks good its perfectly normal.
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:02 AM
since you have moved this post from general please place it in racing this is a 440 race motor
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:11 AM
photo
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:13 AM
Quote:Quote:
lifters rotate in the bore. so the circle is normal. actually desired
?? so one is broke in and all the others are waiting to be broke in????
also whats better for coolant in gaskets
the small slits or the larger slits
has anyone had issues with over heating with the smaller slit gaskets?
Posted By: MoparforLife
Re: What do you think causes this ......................... - 04/01/09 01:27 AM
The portion where that circle is isn't/shouldn't have any contact with the camshaft.
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:29 AM
Quote:Quote:Quote:
lifters rotate in the bore. so the circle is normal. actually desired
?? so one is broke in and all the others are waiting to be broke in????
also whats better for coolant in gaskets
the small slits or the larger slits
has anyone had issues with over heating with the smaller slit gaskets?
gasket one
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:30 AM
Quote:Quote:Quote:Quote:
lifters rotate in the bore. so the circle is normal. actually desired
?? so one is broke in and all the others are waiting to be broke in????
also whats better for coolant in gaskets
the small slits or the larger slits
has anyone had issues with over heating with the smaller slit gaskets?
gasket one
gasket two
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:33 AM
Quote:
The portion where that circle is isn't/shouldn't have any contact with the camshaft.
that is what I thought also but why the circle and only one has it
Posted By: mopars4ever
Re: What do you think causes this ......................... - 04/01/09 01:35 AM
Is the lifter loose in the bore?
Posted By: RapidRobert
Re: What do you think causes this ......................... - 04/01/09 01:41 AM
Quote:Go to www.moparchat.com then scroll down to and click on circle track chat then read Sanborns cooling mods that are in a sticky at the top of the page. It's a SB thread but enough similar & your Q will be answered.
also whats better for coolant in gaskets
the small slits or the larger slits
has anyone had issues with over heating with the smaller slit gaskets?
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 01:46 AM
Quote:Quote:Go to www.moparchat.com then scroll down to and click on circle track chat then read Sanborns cooling mods that are in a sticky at the top of the page. It's a SB thread but enough similar & your Q will be answered.
also whats better for coolant in gaskets
the small slits or the larger slits
has anyone had issues with over heating with the smaller slit gaskets?
thanks found it got to read now to find answer its another cool mopar site
Posted By: conteycp
Re: What do you think causes this ......................... - 04/01/09 01:52 AM
This problem is something that happens more and more to flat tappet cams these days , it's due to the changes made in modern motor oils . they have removed most of the phousphorous and zinc in the oil which causes flat tappet cams to wipe out a lobe and lifter . go onto comp cams web site and they will give you more info on this . if your wondering why this dosen't happen to new car engines it's because they all run roller cams which see less friction due to the roller wheel.
you can buy oil that still have high levels of these elelments but they are label for off rode use only and can't be used in any car with a catalytic converter .The two brands I know of are pensoil racing oil and one of the Royal purple blends
you can buy oil that still have high levels of these elelments but they are label for off rode use only and can't be used in any car with a catalytic converter .The two brands I know of are pensoil racing oil and one of the Royal purple blends
Posted By: aarcuda
Re: What do you think causes this ......................... - 04/01/09 02:27 AM
i guess my cam is shot then. mine has those same marks on most all of the lifters.
and i used Valvoline Vr1 oil and ZDDP zinc additive.
but i admit, that chattering mark isnt what mine looked like exactly. mine had little circles on them though
and i used Valvoline Vr1 oil and ZDDP zinc additive.
but i admit, that chattering mark isnt what mine looked like exactly. mine had little circles on them though
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 02:50 AM
Quote:
This problem is something that happens more and more to flat tappet cams these days , it's due to the changes made in modern motor oils . they have removed most of the phousphorous and zinc in the oil which causes flat tappet cams to wipe out a lobe and lifter . go onto comp cams web site and they will give you more info on this . if your wondering why this dosen't happen to new car engines it's because they all run roller cams which see less friction due to the roller wheel.
you can buy oil that still have high levels of these elelments but they are label for off rode use only and can't be used in any car with a catalytic converter .The two brands I know of are pensoil racing oil and one of the Royal purple blends
been using rotella diesel 15/40
Posted By: I go fast
Re: What do you think causes this ......................... - 04/01/09 03:00 AM
Quote:Quote:
This problem is something that happens more and more to flat tappet cams these days , it's due to the changes made in modern motor oils . they have removed most of the phousphorous and zinc in the oil which causes flat tappet cams to wipe out a lobe and lifter . go onto comp cams web site and they will give you more info on this . if your wondering why this dosen't happen to new car engines it's because they all run roller cams which see less friction due to the roller wheel.
you can buy oil that still have high levels of these elelments but they are label for off rode use only and can't be used in any car with a catalytic converter .The two brands I know of are pensoil racing oil and one of the Royal purple blends
been using rotella diesel 15/40
Rotella isn't the oil it used to be.Zinc content has been significantly reduced over the last 1 1/2 yrs..
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 03:09 AM
Quote:Quote:Quote:
This problem is something that happens more and more to flat tappet cams these days , it's due to the changes made in modern motor oils . they have removed most of the phousphorous and zinc in the oil which causes flat tappet cams to wipe out a lobe and lifter . go onto comp cams web site and they will give you more info on this . if your wondering why this dosen't happen to new car engines it's because they all run roller cams which see less friction due to the roller wheel.
you can buy oil that still have high levels of these elelments but they are label for off rode use only and can't be used in any car with a catalytic converter .The two brands I know of are pensoil racing oil and one of the Royal purple blends
been using rotella diesel 15/40
Rotella isn't the oil it used to be.Zinc content has been significantly reduced over the last 1 1/2 yrs..
so what oil would should be used now?
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 03:11 AM
My piggy bank is broke now lol
is there anything more affordable than these
pensoil racing oil and one of the Royal purple blends ? race gas is high enough lol
is there anything more affordable than these
pensoil racing oil and one of the Royal purple blends ? race gas is high enough lol
Posted By: aarcuda
Re: What do you think causes this ......................... - 04/01/09 03:15 AM
valvoline vr1 racing oil
Posted By: jnkgal
Re: What do you think causes this ......................... - 04/01/09 03:17 AM
Quote:
valvoline vr1 racing oil
thanks
with the cost of fuel omg you have to save every penny you can
Posted By: Kirby
Re: What do you think causes this ..................... - 04/01/09 02:08 PM
Gotta love this gal! 
Posted By: JohnRR
Re: What do you think causes this ..................... - 04/01/09 02:35 PM
Quote:
Gotta love this gal!
Posted By: JohnRR
Re: What do you think causes this ..................... - 04/01/09 02:46 PM
Quote:
The portion where that circle is isn't/shouldn't have any contact with the camshaft.
The circle is created by the rotating of the lifter frm the outer edge of the circle to the edge of the lifter if it's not a .904 speced lobe ramp .
I'd be rotating the engine over on this RACE MODER and what the rotation of the new lifter in that bore vs. the others .
As far as the size of those cooling slits , think about how thick the gasket is and the fact that the holes in the block vs. the head don't line up unless you have a late block with the figure 8 looking holes, there isn't a lot of water flowing thru it unless it's a figure 8 block with a big rectangle hole gasket.
My WAG is that the big slit is an early gasket design , the Mr. Gasket steel shims are still like that as was what I think were the original steel shims in my 69 383 , the small slit is probably the evolution of the gasket when the block holes got elongated to keep the water flow thru them somewhat the same ???
Posted By: moper
Re: What do you think causes this ..................... - 04/01/09 04:27 PM
If the cam's lobe has teh same rough texture of the lifter bottom, dont waste more tiume sending more metal thru te engine. Just replace the cam. It could have been a bunch of things, but the fact that only one went south tells me its the lifter bore or preload. I would not use any cam taht ate a lifter. You caught it early and that's great. But trying to avoid the inevitable by trying a new lifter on the same worn lobe is just not good sense.
Posted By: jnkgal
Re: What do you think causes this ..................... - 04/03/09 03:36 AM
Thanks for all the help and info guys