Re: wiped a lobe... expensive lesson...update
[Re: JohnRR]
#1188084
03/08/12 10:19 AM
03/08/12 10:19 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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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. \
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Re: wiped a lobe... expensive lesson...update
[Re: NV69B7RR]
#1188089
03/09/12 10:43 PM
03/09/12 10:43 PM
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Joined: Jul 2011
Posts: 817 Eugene, Oregon
Secret Chimp
super stock
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super stock
Joined: Jul 2011
Posts: 817
Eugene, Oregon
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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
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Re: wiped a lobe... expensive lesson...update
[Re: CompSyn]
#1188091
03/10/12 01:19 AM
03/10/12 01:19 AM
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Joined: Jul 2010
Posts: 255 Washington, Pa
runner12
enthusiast
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enthusiast
Joined: Jul 2010
Posts: 255
Washington, Pa
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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.
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Re: wiped a lobe... expensive lesson...update
[Re: 471Magnum]
#1188092
03/13/12 12:08 PM
03/13/12 12:08 PM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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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
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Re: wiped a lobe... expensive lesson
[Re: JohnRR]
#1188094
03/13/12 07:04 PM
03/13/12 07:04 PM
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Joined: Apr 2008
Posts: 1,285 Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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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"?
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Re: wiped a lobe... expensive lesson
[Re: CompSyn]
#1188095
03/13/12 08:36 PM
03/13/12 08:36 PM
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Joined: Jan 2012
Posts: 323
A57_RT
Parts Problem
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Parts Problem
Joined: Jan 2012
Posts: 323
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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.
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Re: wiped a lobe... expensive lesson
[Re: A57_RT ]
#1188096
03/13/12 08:52 PM
03/13/12 08:52 PM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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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
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Re: wiped a lobe... expensive lesson
[Re: 471Magnum]
#1188097
03/30/12 10:12 PM
03/30/12 10:12 PM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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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...
-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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Re: wiped a lobe... expensive lesson...update
[Re: Dcuda69]
#1188103
03/31/12 03:02 PM
03/31/12 03:02 PM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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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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