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What happened to these lifters? #470487 09/16/09 09:41 PM 09/16/09 09:41 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	ok, I got the lifters out the 472 hemi and this is what I found. It looks like the lifters galled and got stuck first then wiped the lobes then bent the valves. I don't understand, I never had low oil pressure problems. The lifter bores are not bushed or resricted from oil. These two lifters were directly across from each other on oposite sides of the engine. This was a Comp Cams 24-308-4 .557/.540 250 @ .050. What do you think?

Re: What happened to these lifters? [Re: DLP4] #470488 09/16/09 09:55 PM 09/16/09 09:55 PM
Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi rowin4 master
rowin4 master Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi	Looks like the lifters didn't rotate .If the lifter is stuck in one position the cam will grind it off. In the picture ,is that rust on the lifter? it's ok to butt heads, just don't do it with a butthead

Re: What happened to these lifters? [Re: rowin4] #470489 09/16/09 10:45 PM 09/16/09 10:45 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Quote: Looks like the lifters didn't rotate .If the lifter is stuck in one position the cam will grind it off. In the picture ,is that rust on the lifter? No rust. That's chewed up metal from galling. If you look at the one on the right the lifter was already galled pretty good but only had slight wear on the face indicating the galling happened first and prevented it from spinning. Then it started eating the lobe. That's why I'm thinking it was a lifter oiling problem

Re: What happened to these lifters? [Re: DLP4] #470490 09/16/09 10:49 PM 09/16/09 10:49 PM
Joined: Jun 2003 Posts: 9,225 Charleston S sixpackgut Drag Week Mod Champion
sixpackgut Drag Week Mod Champion S Joined: Jun 2003 Posts: 9,225 Charleston	the galling appears to be where the oil gallery is, maybe the bore needs to be checked there and honed Last edited by sixpackgut; 09/16/09 11:50 PM. Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs

Re: What happened to these lifters? [Re: DLP4] #470491 09/16/09 10:51 PM 09/16/09 10:51 PM
Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi rowin4 master
rowin4 master Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi	Quote: ok, I got the lifters out the 472 hemi and this is what I found. It looks like the lifters galled and got stuck first then wiped the lobes then bent the valves. I don't understand, I never had low oil pressure problems. The lifter bores are not bushed or resricted from oil. These two lifters were directly across from each other on oposite sides of the engine. This was a Comp Cams 24-308-4 .557/.540 250 @ .050. What do you think? I was looking at the side of the lifters on the question about the rust it's ok to butt heads, just don't do it with a butthead

Re: What happened to these lifters? [Re: rowin4] #470492 09/16/09 11:17 PM 09/16/09 11:17 PM
A Anonymous Unregistered
Anonymous Unregistered A	it's ahrd to tell from that picture, but if that's galling, it appears to be right in the area where the oil gallery intersects with the lifter bore. is ther some sharp edges there, or perhaps the lifter bores are not properly sized for clearance as well.

Re: What happened to these lifters? #470493 09/16/09 11:21 PM 09/16/09 11:21 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Here's another shot. The galling is in two places on each lifer and is directly on either side of the oil gallery. I don't have tools to measure the lifter bores but when I slid a "good" lifter into the bad bore it slid right thru Last edited by DLP4; 09/16/09 11:26 PM.

Re: What happened to these lifters? [Re: DLP4] #470494 09/16/09 11:27 PM 09/16/09 11:27 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Here's another shot. The galling is in two places on each lifer and is directly on either side of the oil gallery. I don't have tools to measure the lifter bores but when I slid a "good" lifter into the bad bore it slid right thru what brand of block, what brand of lifters and what does the lifter bores look like? have you measured them or the lifters?

Re: What happened to these lifters? #470495 09/16/09 11:29 PM 09/16/09 11:29 PM
A Anonymous Unregistered
Anonymous Unregistered A	can you rotate the lifters and take another pic like the last one to show the galling on the other side?

Re: What happened to these lifters? #470496 09/16/09 11:40 PM 09/16/09 11:40 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Quote: what brand of block, what brand of lifters and what does the lifter bores look like? have you measured them or the lifters? Comp Cam lifters and a MP 426 block. Bores are chewed up the same on either side of the oil gallery All I can do is use a good lifter as a "go/no-go" gauge and a good lifter slides thru easily. How do you measure lifter bores anyway? With no-go pins? I was going to take another shot trying to show both gall spots but they are 180 degree apart so I can only capture one at a time in a picture. The oposite sides look the same Last edited by DLP4; 09/16/09 11:46 PM.

Re: What happened to these lifters? [Re: DLP4] #470497 09/17/09 01:13 AM 09/17/09 01:13 AM
A Anonymous Unregistered
Anonymous Unregistered A	i only expected to see one side at a time. are all the lifter bores galled or just those two? i was also looking at how the wear goes all the way to the edge of the lifter, almost like the lfter is too loose in the bore, or indexed incorrectly, or both. typically galling would occur from lack of oil and from being too tight in the bore though. can you get a picture of the lifter bore? Last edited by DRAM_Perf_Only; 09/17/09 01:15 AM.

Re: What happened to these lifters? #470498 09/17/09 03:29 AM 09/17/09 03:29 AM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	This is both sides of the same lifter bore. In a previous post 1_WILD_RT told me about ZDDP being removed from oil. I wasn't aware and was using Castrol GTX. Could it be as simple as using the wrong oil? Dan, I went to look at your catalog and there were script errors and pictures not showing up, just red "X"s. Might want to fix it Last edited by DLP4; 09/17/09 03:43 AM.

Re: What happened to these lifters? [Re: DLP4] #470499 09/17/09 06:06 AM 09/17/09 06:06 AM
A Anonymous Unregistered
Anonymous Unregistered A	the length of the wear on the lifters seems to correlate to the amount of cam lift from the bottom of the lifter bore upwards. check the bottom of all the lifter bores for sharp edges. you mentioned that a new lifter falls right through. you could use a snap guage and a mic to measure the bores, or a burnishing ball as a go/ no guage guage. do other lifter bores show the same wear, even if it's not as bad as the one in the picture? anyway, normal side loading in a properly sized bore without sharp edges shouldn't have those issues. check size, roundness and look for sharp edges. i bet the root cause of the problem becomes evident very quickly.

Re: What happened to these lifters? [Re: DLP4] #470500 09/17/09 07:44 AM 09/17/09 07:44 AM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	Is it possible there was machining residue or sand left in the oil galley? Were these from cylinders #7 or #8?

Re: What happened to these lifters? [Re: S/ST 3040] #470501 09/17/09 08:48 AM 09/17/09 08:48 AM
Joined: Jan 2003 Posts: 74,992 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,992 U.S.S.A.	Quote: Is it possible there was machining residue or sand left in the oil galley? Were these from cylinders #7 or #8? That is completely possible , not sure if this is an store bought crate motor but I took apart my Hemi Crate motor because I didn't want to see something like this happen to it , I found one lifter that would not rotate.

Re: What happened to these lifters? [Re: JohnRR] #470502 09/17/09 08:46 PM 09/17/09 08:46 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	All the bores have light scuffing in the same area. These are pictures of that. I don't have many machinist tools but I was able to use a .0005" indicator and rock one good lifter in one bad bore and 2 good bores and they all had .0015" of travel. No burrs that I could detect. Some of the edges are sharp but not burred. Cylinders #5 & #6 had the problem with #5 being the worst The engine was built by a local hemi "expert". Not a crate engine. How do you check if the lifters are rotating properly? Last edited by DLP4; 09/17/09 08:50 PM.

Re: What happened to these lifters? [Re: DLP4] #470503 09/18/09 12:26 AM 09/18/09 12:26 AM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	Quote: How do you check if the lifters are rotating properly? What I do is match mark the lifter and boss then rotate the crank about 4 or 5 complete cycles. I'll look to make sure all the lifters rotated about the same amount. Don't know if that's proper, though...

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