Re: Cam Change - Issues???
[Re: CUDAJAS]
#1525035
10/29/13 02:11 AM
10/29/13 02:11 AM
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Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Mopar Action magazine did a great article on how to start a fresh engine. It shows how to absolutely ensure that the engine starts on the very first few revolutions. The failure of these types of cams is directly related to extended cranking on a fresh start AND the proper oil used. This is assuming that you are using the proper valve springs according to the Cam manufacturer. Get the engine to start immediately AND use the right oil. Your chances of success are good. 
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Re: Cam Change - Issues???
[Re: Twostick]
#1525038
10/29/13 10:10 PM
10/29/13 10:10 PM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Quote:
Use a good 15/40 diesel oil like Rotella or Mobil Delvac. If you can't sleep at night, add a can of GM EOS or equivalent.
Make sure ALL, repeat ALL the lifters are spinning BEFORE you fire it up. IMHO 90+% of cam failures are caused by a lifter that wasn't turning.
When you turn the engine over on the starter, all the push rods should spin quickly and evenly. A slow one or a stopped one is trouble. Swap the lifter to a different hole and try again. If it won't spin in that hole,replace the lifter. If the one in the original hole still won't spin, check the lifter bore.
This check can be done in a very few seconds and IMO is critical.
Kevin
I agree & great advice. I just switched cams in my 383, using plenty of cam lube, a bottle of Trick Flow breakin oil & no issues with
the new cam & its been 4 months now. I try to add a quart of Comp break in oil with oil changes just to be sure I have enough zinc & phosporous, etc.
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Re: Cam Change - Issues???
[Re: Triggerfish]
#1525039
10/29/13 10:22 PM
10/29/13 10:22 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'd suggest mocking up each lifter in a bore cleaned with brake kleen & lightly lubed with WD40 & lift each lifter up off of its' lobe with your finger & let go of it & it should fall back onto its' respective lobe with a resounding "thunk"
live every 24 hour block of time like it's your last day on earth
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Re: Cam Change - Issues???
[Re: Kern Dog]
#1525040
10/30/13 01:15 AM
10/30/13 01:15 AM
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Joined: Jul 2008
Posts: 205
Martinsville, VA
440child
enthusiast
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enthusiast
Joined: Jul 2008
Posts: 205
Martinsville, VA
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Quote:
Mopar Action magazine did a great article on how to start a fresh engine.
Would anyone have a copy of this by any chance?
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Re: Cam Change - Issues???
[Re: 80fbody]
#1525041
11/01/13 04:19 PM
11/01/13 04:19 PM
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Joined: Jan 2003
Posts: 2,072
Cambridge, Ontario, Canada
CUDAJAS
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,072
Cambridge, Ontario, Canada
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Thanks for the input guys. I would likely go with the lunati voodoo cam and lifter package. Quote:
I would source some Johnson lifters. Much better luck with those. Check with guys like Comp. Wedge, Compuflow, ect. Seem to be much more helpful getting those, if available.
These are the comments that scare me.
Is there an issue with Lunati lifters or the other cam and lifter kits?
Jason
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