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Re: What do you think causes this ......................... [Re: jnkgal] #272790 03/31/09 09:29 PM 03/31/09 09:29 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	Quote: Quote: Quote: lifters rotate in the bore. so the circle is normal. actually desired if the lobe looks good its perfectly normal. ?? 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 5132937-slit1.jpg (33 downloads) "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272791 03/31/09 09:30 PM 03/31/09 09:30 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	Quote: Quote: Quote: Quote: lifters rotate in the bore. so the circle is normal. actually desired if the lobe looks good its perfectly normal. ?? 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 5132940-slit2.jpg (32 downloads) "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: MoparforLife] #272792 03/31/09 09:33 PM 03/31/09 09:33 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	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 "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272793 03/31/09 09:35 PM 03/31/09 09:35 PM
Joined: Jan 2003 Posts: 13,589 md M mopars4ever I Live Here
mopars4ever I Live Here M Joined: Jan 2003 Posts: 13,589 md	Is the lifter loose in the bore?

Re: What do you think causes this ......................... [Re: jnkgal] #272794 03/31/09 09:41 PM 03/31/09 09:41 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: 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? 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. live every 24 hour block of time like it's your last day on earth

Re: What do you think causes this ......................... [Re: RapidRobert] #272795 03/31/09 09:46 PM 03/31/09 09:46 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	Quote: Quote: 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? 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. thanks found it got to read now to find answer its another cool mopar site "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272796 03/31/09 09:52 PM 03/31/09 09:52 PM
Joined: May 2005 Posts: 176 New Jersey C conteycp member
conteycp member C Joined: May 2005 Posts: 176 New Jersey	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

Re: What do you think causes this ......................... [Re: conteycp] #272797 03/31/09 10:27 PM 03/31/09 10:27 PM
Joined: Mar 2003 Posts: 15,491 the boonies aarcuda I Live Here
aarcuda I Live Here Joined: Mar 2003 Posts: 15,491 the boonies	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 5133139-SDC10369.JPG (47 downloads)

Re: What do you think causes this ......................... [Re: conteycp] #272798 03/31/09 10:50 PM 03/31/09 10:50 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	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 "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272799 03/31/09 11:00 PM 03/31/09 11:00 PM
Joined: Jun 2003 Posts: 190 Wilmington,NC I I go fast member
I go fast member I Joined: Jun 2003 Posts: 190 Wilmington,NC	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..

Re: What do you think causes this ......................... [Re: I go fast] #272800 03/31/09 11:09 PM 03/31/09 11:09 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	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? "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272801 03/31/09 11:11 PM 03/31/09 11:11 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	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 "A goal without a plan is just a wish."

Re: What do you think causes this ......................... [Re: jnkgal] #272802 03/31/09 11:15 PM 03/31/09 11:15 PM
Joined: Mar 2003 Posts: 15,491 the boonies aarcuda I Live Here
aarcuda I Live Here Joined: Mar 2003 Posts: 15,491 the boonies	valvoline vr1 racing oil

Re: What do you think causes this ......................... [Re: aarcuda] #272803 03/31/09 11:17 PM 03/31/09 11:17 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	Quote: valvoline vr1 racing oil thanks with the cost of fuel omg you have to save every penny you can "A goal without a plan is just a wish."

Re: What do you think causes this ..................... [Re: jnkgal] #272804 04/01/09 10:08 AM 04/01/09 10:08 AM
Joined: Jan 2005 Posts: 1,527 minnesota Kirby pro stock
Kirby pro stock Joined: Jan 2005 Posts: 1,527 minnesota	Gotta love this gal!

Re: What do you think causes this ..................... [Re: Kirby] #272805 04/01/09 10:35 AM 04/01/09 10:35 AM
Joined: Jan 2003 Posts: 75,012 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,012 U.S.S.A.	Quote: Gotta love this gal!

Re: What do you think causes this ..................... [Re: MoparforLife] #272806 04/01/09 10:46 AM 04/01/09 10:46 AM
Joined: Jan 2003 Posts: 75,012 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,012 U.S.S.A.	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 ???

Re: What do you think causes this ..................... [Re: JohnRR] #272807 04/01/09 12:27 PM 04/01/09 12:27 PM
Joined: Feb 2003 Posts: 12,675 Columbia, CT M moper I Live Here
moper I Live Here M Joined: Feb 2003 Posts: 12,675 Columbia, CT	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. Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.

Re: What do you think causes this ..................... [Re: moper] #272808 04/02/09 11:36 PM 04/02/09 11:36 PM
Joined: Apr 2007 Posts: 4,525 Daisyland USA J jnkgal OP master
jnkgal OP master J Joined: Apr 2007 Posts: 4,525 Daisyland USA	Thanks for all the help and info guys "A goal without a plan is just a wish."

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