Re: Will you know immediately if you wiped a cam
[Re: 68Bullit]
#283935
04/10/09 06:28 PM
04/10/09 06:28 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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Yes you will have an irritating miss and a tick that will drive you nuts...This is from when it happened to me. https://board.moparts.org/ubbthreads/show...&PHPSESSID=
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Will you know immediately if you wiped a cam
[Re: FlyFish]
#283936
04/10/09 07:11 PM
04/10/09 07:11 PM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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What springs are in it? Singles, or doubles? Why are you asking. like what is it doing different?
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.
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Re: Will you know immediately if you wiped a cam
[Re: moper]
#283937
04/10/09 08:05 PM
04/10/09 08:05 PM
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Joined: Jan 2003
Posts: 10,731
North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,731
North Dakota
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I wiped a lobe on a MP cam one time. It didn't miss, it just sounded 'funny'. In fact my Dad picked it up that it sounded 'funny'. Sure enough, one exhaust lobe looked like the fuel pump eccentric.
This is a backyard test, disconnect the coil wire and ground it. Then crank the engine over. If the speed and sound is steady, chances are all the cylinders are behaving equally. If the starter changes tone every two revolutions, then you have problems with one cylinder. More changes, more cylinders.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: Will you know immediately if you wiped a cam
[Re: buildanother]
#283939
04/10/09 09:39 PM
04/10/09 09:39 PM
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Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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That is most likely timming.
Build another, in an upturned side turvey economy, where are all the old antique....historic more like it, mopars ? unfinished projects aren't easy finds anymore.
The given ups, went to the crusher. M 71 4 speed 4 door has rust through above both leaf perches, body shop wants way too much to fix. Its days are numbered with crappy patches. I have some wood up front for floors.
Last edited by mark7171; 04/10/09 09:42 PM.
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Re: Will you know immediately if you wiped a cam
[Re: volaredon]
#283942
04/11/09 08:59 AM
04/11/09 08:59 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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I chased a exhast leak thinking it was a lifter tap after new PR,rockers and shafts  then new lifters and a cam swap turned out to be a pitted flange on the DS header,some copper rtv and no more ticking  after a few  it was back  new headers and copper rtv and have not heard it yet I just hate the sound of a ferd PR going in a mopar  I just hope its not going to be too long,but you will have shorter ones to put back in I guess 
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Re: Will you know immediately if you wiped a cam
[Re: scratchnfotraction]
#283943
04/11/09 09:38 AM
04/11/09 09:38 AM
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Joined: Jan 2008
Posts: 2,250
ILLINOIS
volaredon
top fuel
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top fuel
Joined: Jan 2008
Posts: 2,250
ILLINOIS
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Quote:
I chased a exhast leak thinking it was a lifter tap
after new PR,rockers and shafts
then new lifters and a cam swap
turned out to be a pitted flange on the DS header,some copper rtv and no more ticking
after a few it was back
new headers and copper rtv and have not heard it yet
I just hate the sound of a ferd PR going in a mopar
I just hope its not going to be too long,but you will have shorter ones to put back in I guess
Yeah I know the feeling about a Furd part in a Mopar; but as far as my tick, it was there with the manifolds and is there still, same intensity, now that I have Hooker Super Comps and true duals (new at that) on there.
The Furd PR's are only 0.010" longer than the MP conversion ones. The COMP ones that some say they wind up using in these apps is 0.025" longer than the MP conversion ones. so no I dont believe the Furd ones would be TOO long but I do hear of them working out for some people.
I have already WAAAAY too much in this swap (buying Magnum heads, machine shop time and materials to find out I had piles of scrap, then finally buying a set of EQ Magnum heads) and cringe at the thought of having to get another cam+lifters right now, (I am on disability) but an out of the book standard part (whatever it actually is listed for) will be more affordable than the ones from COMP that "everyone" says they wind up using. If this cam does turn out as bad, screw it, the orig 318 cam is going back in, although I will still have to buy another set of lifters (threw the orig ones out, didnt have the hole in them for thru thr pushrod oiling; that was the WHOLE reason I decided to put a whole cam in the old "might as well" thing; new lifters new t/chain set, aso why not a cam too?
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Re: Will you know immediately if you wiped a cam
[Re: volaredon]
#283944
04/11/09 11:15 AM
04/11/09 11:15 AM
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Joined: Jan 2003
Posts: 21,074
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,074
Niles , Ohio
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My kids old truck had 1 lobe that was completely gone and at least 2 or 3 that were pretty much worn on his 318.It never clattered and didnt run bad.Just never idled smooth and didnt have a lot of pickup.I couldnt believe the cam was that bad when we pulled it.Rocky
Chrysler Firepower
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Re: Will you know immediately if you wiped a cam
[Re: edbux]
#283948
04/11/09 03:06 PM
04/11/09 03:06 PM
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Joined: Jan 2008
Posts: 2,250
ILLINOIS
volaredon
top fuel
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top fuel
Joined: Jan 2008
Posts: 2,250
ILLINOIS
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Quote:
From what I've read, they should be .03 to .06 I understand that the Magnum head conversion will never be truly quiet.
Oh really? That's the 1st I've heard the "never really quiet" comment on a Mag conversion.
I hear of talk of special "measuring" pushrods that can be bought, but how do you really tell? Tighten the measuring tool til it don't spin in your fingers? I've never bought/used one of these.but I;'ve worked on many a SB Shivvy, as well as /6s and 273s that have adjustable valves, but I always adjust them with the engine running. I do not have an adjustable valvetrain on here.
and as far as the .03-.06 do i need to measure that with a dial ind. and the intake off? I did use the MP "thin" Magnum head gaskets (0.028") as opposed to the 0.40-something FelPro's, so I figured I'd "gain" the difference, in less PR length needed. (does that make sense?)
  UPDATE; Yesterday, Me and the kid were driving around, and a couple times we thought we smelled fuel; went to White Castle for lunch (see why I didn't say smelled "gas" ) we thought it was "the guy next to us" cuz that truck was gone and so was the smell when we came out; stopped a couple other places and again smelled fuel; on one stop, the kid waited in the truck, as I went in to pay my bill; I noticed a wet spot under my truck 1st thought "maybe it was there already" but NOOOO; He started the truck when I went to crouch and see where the wet spot "might" be from; soon as he started it I saw gas leaking. Yup, right out the weep hole. so we drove a few blocks away where a buddy works I went in and borrowed the needed tools, and I put my new spare FP on that I keep behind the seat; went straight home and had the kid change the oil (in case it had been diluted by the gas); right at the full mark like always, it was not "over full"; but with a fresh charge of 10-W-40 in the pan, I went to town today and no noise! (it seemed to rap loudest on the highway at 65+, when it did it) but was dead quiet when I 1st assembled everything. Noise started at ~600 miles after new cam. but appears gone at the moment, with new oil in there.
When I installed the cam, I used a whole bottle of "cam assembly lube" as well as a can of STP (old stash, probably 30 year old STP) which I hear has alot of ZDDP in it; poured it right over the cam/lifter valley before re installing the intake, and fresh Valvoline 10-W-40; it now has about 2100 miles on it since the cam and head swap (yeah I know I shoulda changed the oil again that same day after break in but I did not) I did not put the STP in this oil change yet though, but I have more so probably will the next couple days while the oil is still "fresh" in the pan.
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