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Re: wiped a lobe... expensive lesson...update [Re: JohnRR] #1188084 03/08/12 10:19 AM 03/08/12 10:19 AM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Hopefully you swept before laying the pistons out ... Nope sure didn't, I figured the pistons were gonna be replaced along with either the heads or block. Turned out that the #5 cylinder wall was cracked allowing water to get in there. So the block, pistons and heads got replaced. I bolted on some Edlebrock heads that I had for like 4 years during this rebuild. That cylinder looks like it can be honed and I would clean up your pistons with scotchbrite pads. Good luck with your rebuild. My heads were not cracked but the block was. I reused my MP 474 cam, this is the 3rd block that the cam has been used in along with the original lifters, I've been lucky. I do run some 15 year old 15/40 Shell Rotella oil, I have like 10 gals still. $250.00 is what KB243 pistons cost me in 2007, really cheap if you ask me and they have held up good since 2007 when I put it togeather. \

Re: wiped a lobe... expensive lesson...update [Re: Challenger 1] #1188085 03/08/12 12:44 PM 03/08/12 12:44 PM
Joined: Jan 2003 Posts: 17,840 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,840 S.E. Michigan	Quote: I do run some 15 year old 15/40 Shell Rotella oil, I have like 10 gals still. Nice to see I am not the only one using NOS motor oil A little known secret: MP got away from Stanadyne and switched to Johnson Hylift/Topline recently. Quality is outstanding. Rich H. Esse Quam Videri

Re: wiped a lobe... expensive lesson...update [Re: Challenger 1] #1188086 03/08/12 07:20 PM 03/08/12 07:20 PM
Joined: Apr 2008 Posts: 1,285 Pacific NW USA CompSyn pro stock
CompSyn pro stock Joined: Apr 2008 Posts: 1,285 Pacific NW USA	Quote: I do run some 15 year old 15/40 Shell Rotella oil, I have like 10 gals still. I'd be a little leery of using oil this old. The oil manufactures have said motor oil does have a shelf life of around 3-to-5 years, and that's if it's stored in perfect conditions, e.g., out of any direct sun light and in a area with moderate temps and no wide temp swings. You may want to sample it and send it off for analysis before use. At the vary least, agitate it real well before use as additive settling does occur even with brand new oil. For example: http://www.youtube.com/watch?v=rfW8W3sjbto - (Do yourself a favor and fast forward a minute into the video.) UPDATE: I emailed Gary Rod at Shell Lubricants (SOPUS Products US) regarding motor oil shelf life and this is what he said word for word: Quote: "Our recommended shelf life on products that we sell is 5yrs. Therefore after that you are using it at your own risk." - Cited Email, Gary Rod, Shell Lubricants (SOPUS Products US) gary.rod@shell.com Last edited by CompSyn; 03/08/12 08:46 PM.

Re: wiped a lobe... expensive lesson...update [Re: CompSyn] #1188087 03/09/12 08:01 PM 03/09/12 08:01 PM
Joined: Jul 2010 Posts: 255 Washington, Pa R runner12 enthusiast
runner12 enthusiast R Joined: Jul 2010 Posts: 255 Washington, Pa	Sorry to hear about your cam issue. Tear it down clean it BRAD PENN OIL A GOOD FILTER AND A FILTER MAG !!! GOOD LUCK!!!!

Re: wiped a lobe... expensive lesson...update [Re: runner12] #1188088 03/09/12 08:28 PM 03/09/12 08:28 PM
Joined: Nov 2006 Posts: 6,005 Reno, Nevada NV69B7RR master
NV69B7RR master Joined: Nov 2006 Posts: 6,005 Reno, Nevada	What is a good oil filter, K&N ? 72 Demon 340 71 Duster 340 Resto https://board.moparts.org/ubbthreads/show...part=1&vc=1

Re: wiped a lobe... expensive lesson...update [Re: NV69B7RR] #1188089 03/09/12 10:43 PM 03/09/12 10:43 PM
Joined: Jul 2011 Posts: 817 Eugene, Oregon Secret Chimp super stock
Secret Chimp super stock Joined: Jul 2011 Posts: 817 Eugene, Oregon	Quote: What is a good oil filter, K&N ? Wix or NAPA Gold (same thing) 1967 Dodge Coronet Deluxe station wagon 1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s

Re: wiped a lobe... expensive lesson...update [Re: NV69B7RR] #1188090 03/09/12 11:07 PM 03/09/12 11:07 PM
Joined: Apr 2008 Posts: 1,285 Pacific NW USA CompSyn pro stock
CompSyn pro stock Joined: Apr 2008 Posts: 1,285 Pacific NW USA	Quote: What is a good oil filter, K&N ? This oil filter: http://www.youtube.com/watch?v=NRbDfhgOOgo

Re: wiped a lobe... expensive lesson...update [Re: CompSyn] #1188091 03/10/12 01:19 AM 03/10/12 01:19 AM
Joined: Jul 2010 Posts: 255 Washington, Pa R runner12 enthusiast
runner12 enthusiast R Joined: Jul 2010 Posts: 255 Washington, Pa	Do some homework and decide what best bang for the buck . The WIX , K&N ? Everyone likes something differnt or dont want to spend the money that napa platinum looks good also! Last edited by runner12; 03/10/12 01:26 AM.

Re: wiped a lobe... expensive lesson...update [Re: 471Magnum] #1188092 03/13/12 12:08 PM 03/13/12 12:08 PM
Joined: Jan 2003 Posts: 3,719 Space Station #5 471Magnum OP master
471Magnum OP master Joined: Jan 2003 Posts: 3,719 Space Station #5	Just got the call from the machine shop. Bores will clean up fine with a hone. Crank needs to go 10 under. That doesn't break my heart though as that crank was on the tight end of tolerance out of the box with a bit of warp. This will straighten it out. Time to order bearings and rings... -Jim I can fix it... my old man is a television repairman. He's got the ultimate set of tools... I can fix it. Currently Mopar-less

Re: wiped a lobe... expensive lesson...update [Re: 471Magnum] #1188093 03/13/12 01:22 PM 03/13/12 01:22 PM
Joined: Dec 2005 Posts: 2,886 Bowling Green KY / Nashville, ... 300by500 master
300by500 master Joined: Dec 2005 Posts: 2,886 Bowling Green KY / Nashville, ...	That's it. I've heard / seen enough. My 498 will have a hydraulic roller. https://i.imgur.com/tmuGzov.jpg

Re: wiped a lobe... expensive lesson [Re: JohnRR] #1188094 03/13/12 07:04 PM 03/13/12 07:04 PM
Joined: Apr 2008 Posts: 1,285 Pacific NW USA CompSyn pro stock
CompSyn pro stock Joined: Apr 2008 Posts: 1,285 Pacific NW USA	Quote: Quote: I don't necessarily think it's the cam that's noisy, but the lifters that come with the kits. I'll be ordering a set of Topline Hylifts for the next cam. It's the cam , XE have fast ramps and the valves tend to slam shut. Think I've lost track of how many times I've heard or seen people have issues with the "state-of-the-art", computer designed, fast-rate-of-lift, if-it's-good-on-paper camshafts available today. When talking camshafts, is this what Bob K refers to as "taming lift not exaggerating it"?

Re: wiped a lobe... expensive lesson [Re: CompSyn] #1188095 03/13/12 08:36 PM 03/13/12 08:36 PM
Joined: Jan 2012 Posts: 323 A A57_RT Parts Problem
A57_RT Parts Problem A Joined: Jan 2012 Posts: 323	One thing to consider, esp if you think you might be trying different cams is the SM beck style puck lifters. I have used them on 4 of my last strokers, currently doing a build and dont seem too impressed by comps "lightweight" edm lifters at over 100 grams. The SM solides were right at 73 grams per and really its easy to work around the lifters needs with the increased spring pressure needed. Consider about $450 more the comps edm-s would not be the only added cost, better pushrods,springs,ect add to the cost but here again I feel used right they are bulletproof. Ive one set going on 4 hard years and I think 4 cams and show as new other then normal lifter body wear. And 73 grams is pretty light and I never worry about the valvetrain. 7117219-DSC06386[1](2).JPG (139 downloads)

Re: wiped a lobe... expensive lesson [Re: A57_RT ] #1188096 03/13/12 08:52 PM 03/13/12 08:52 PM
Joined: Jan 2003 Posts: 3,719 Space Station #5 471Magnum OP master
471Magnum OP master Joined: Jan 2003 Posts: 3,719 Space Station #5	I'll be running a hydraulic cam again. -Jim I can fix it... my old man is a television repairman. He's got the ultimate set of tools... I can fix it. Currently Mopar-less

Re: wiped a lobe... expensive lesson [Re: 471Magnum] #1188097 03/30/12 10:12 PM 03/30/12 10:12 PM
Joined: Jan 2003 Posts: 3,719 Space Station #5 471Magnum OP master
471Magnum OP master Joined: Jan 2003 Posts: 3,719 Space Station #5	Got it all back together. I'll drop it in tomorrow and should have it running no later than Sunday. Think I'm going to sprinkle it with holy water and say a few prayers this time around... 7143463-P1090672.JPG (172 downloads) -Jim I can fix it... my old man is a television repairman. He's got the ultimate set of tools... I can fix it. Currently Mopar-less

Re: wiped a lobe... expensive lesson [Re: 471Magnum] #1188098 03/31/12 01:05 PM 03/31/12 01:05 PM
Joined: Jan 2003 Posts: 74,974 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,974 U.S.S.A.	Quote: Think I'm going to sprinkle it with holy water and say a few prayers this time around...

Re: wiped a lobe... expensive lesson...update [Re: Challenger 1] #1188099 03/31/12 02:35 PM 03/31/12 02:35 PM
Joined: Sep 2006 Posts: 1,139 West Tennessee R rbstroker super stock
rbstroker super stock R Joined: Sep 2006 Posts: 1,139 West Tennessee	A lot of good info here. Is there any particular brand flat tappet cam that is more prone to lobe failure? Any that are less prone?

Re: wiped a lobe... expensive lesson...update [Re: rbstroker] #1188100 03/31/12 02:38 PM 03/31/12 02:38 PM
Joined: Nov 2007 Posts: 21,819 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,819 Kirkland, Washington	Seems like Comp Cams have had more than their share of issues...

Re: wiped a lobe... expensive lesson...update [Re: Pacnorthcuda] #1188101 03/31/12 02:44 PM 03/31/12 02:44 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: Seems like Comp Cams have had more than their share of issues... I've heard of failures with other brands too... I think Comp has such a large chunk on the market that it's only natural they have a large chunk of the failures... Take a look at the issues with Hughes cams a few years back with "Team Moparts" at the Engine Masters competition... "The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."

Re: wiped a lobe... expensive lesson...update [Re: Pacnorthcuda] #1188102 03/31/12 02:49 PM 03/31/12 02:49 PM
Joined: Oct 2005 Posts: 4,941 WI Dcuda69 master
Dcuda69 master Joined: Oct 2005 Posts: 4,941 WI	I lost a Comp XS280S solid after 1k mi,my buddy lost a MP .528 solid after about 10K mi. I was using Valvoline, he was using Mobil 1 He currently has a XS280S and has been fine for a few years now, I went with a Comp street solid roller(XR280R) and it also has been fine(I like it a lot better)We both are now using Brad Penn Almost forgot.....I know 2 other guys that lost flat tappet cams also,1 Chevy and 1 Ford...not sure about cam brands there though Last edited by Dcuda69; 03/31/12 02:51 PM.

Re: wiped a lobe... expensive lesson...update [Re: Dcuda69] #1188103 03/31/12 03:02 PM 03/31/12 03:02 PM
Joined: Jan 2003 Posts: 3,719 Space Station #5 471Magnum OP master
471Magnum OP master Joined: Jan 2003 Posts: 3,719 Space Station #5	Brand has less to do with it than cam profile, spring pressures, and oil choice. I stuck a Comp Cams stick back in the motor. I'm now convinced the last oil change I did utilizing store brand oil and forgetting the zinc additive was the culprit. Due to all the cylinder head issues I was dealing with, I had changed oil numerous times in the past year. Got tired of putting in the expensive oil. I cheaped out one time. That's all it took. With the aggressive Comp Cams XE lobe profile, it didn't take long. Like the subject says: expensive lesson. There have been NUMEROUS articles on cam failures over the last several years. Really not necessary to rehash it here. I've got Comp Cams break-in oil in the motor now. I'll probably use the Brad Penn Grade 1 going forward. -Jim I can fix it... my old man is a television repairman. He's got the ultimate set of tools... I can fix it. Currently Mopar-less

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