Broken Crankshaft Alt Fire Cam

Dave c

New member
Jul 7, 2013
294
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That sucks! I never believed it would fix anything. Theres other as well they just don't pimp them selfs on the Internet. The only possible fix I know of is the Wagler crank and rods were they make the journal narrower and narrow the rods. That will have to help.

That idea never came from wagler. Ngm came out with the fix 2 years ago...before anyone did with the correct crank and rod profile.
 

Dave c

New member
Jul 7, 2013
294
0
0
MagnaFlux dye test will show any surface problems. Though it's not a x ray. Like I've said before alter fire cams have not fixed anything....but if it makes you feel better then waste your money.


The fix is the redesigned crank and rod combo that NGM has had since 2012. It consist of a thinner rod and a thinner rod pin jurnal. This from what wade tells me minimizes flex and destortion and increases strength a lot. Also make internal balance so much better with less heavy metal.
 

nwpadmax

comlpete diphsit
Aug 17, 2006
110
0
16
under my truck
Dave, how much thinner are the NGM rod ends? Did they just enlarge the fillet radius to fill that space?

I'm always skeptical when someone claims "increases strength by a lot" with no data presented.....which is almost always the case with Wade.

"The fix" is merely more anecdotal evidence of a fix. How many engines are running that "fix"? How many miles on each? Are they also billet cranks made from a superior material and processing? I could go on and on...

A couple engines is not enough to declare a "fix".
 

PACougar

Active member
Jun 27, 2012
2,105
1
36
41
El Dorado Hills, Ca
MagnaFlux dye test will show any surface problems. Though it's not a x ray. Like I've said before alter fire cams have not fixed anything....but if it makes you feel better then waste your money.


The fix is the redesigned crank and rod combo that NGM has had since 2012. It consist of a thinner rod and a thinner rod pin jurnal. This from what wade tells me minimizes flex and destortion and increases strength a lot. Also make internal balance so much better with less heavy metal.

Wade, you're not a site vendor. Nobody cares about NGM:thumb: Your hole is probably getting cold without you in it.
 

LBZ

Super Moderator
Staff member
Jul 2, 2007
9,903
149
63
46
B.C.
Dave, how much thinner are the NGM rod ends? Did they just enlarge the fillet radius to fill that space?

I'm always skeptical when someone claims "increases strength by a lot" with no data presented.....which is almost always the case with Wade.

"The fix" is merely more anecdotal evidence of a fix. How many engines are running that "fix"? How many miles on each? Are they also billet cranks made from a superior material and processing? I could go on and on...

A couple engines is not enough to declare a "fix".
This is kind of my thought with the AF but as of yet, again, not one case with evidence to back up claimed failures with new cranks and an AF cam that I have heard of anywhere. Once more get out there, maybe it will come about. Who knows. All I know is the evidence right now seems to support the theory it at least helps.
 

LBZ

Super Moderator
Staff member
Jul 2, 2007
9,903
149
63
46
B.C.
MagnaFlux dye test will show any surface problems. Though it's not a x ray. Like I've said before alter fire cams have not fixed anything....but if it makes you feel better then waste your money.


The fix is the redesigned crank and rod combo that NGM has had since 2012. It consist of a thinner rod and a thinner rod pin jurnal. This from what wade tells me minimizes flex and destortion and increases strength a lot. Also make internal balance so much better with less heavy metal.
If it's a waste of money, why does NGM make and sell a variety of different AF cams? Scamming people are they?
 

Utahski

New member
Oct 20, 2008
546
0
0
Northern Utah
I had an LLY crank break and don't ever want that again. The Winberg crank is a work of art but they break too, in the same place......much more seldom because there are comparatively very few out there. Anything can break, there are no guarantees. We're talking about an expensive teardown and rebuild. If an AF cam lessens the chance of breakage by even 50%, for me it's definitely worth having. I've just had an engine built with an AF cam, the crank was checked with an x-ray or some such thing. We'll see how it holds up.
 

nwpadmax

comlpete diphsit
Aug 17, 2006
110
0
16
under my truck
For anyone thinking their crank got X-rayed....

You should have recieved a folder full of photos and a BIG BILL.

Just saying....if it got "checked".....it got magnafluxed. Most shops around me send you to the Magnaflux vendor with the immersion tank method. There are hand held units that are less sensitive that some shops use.
 
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nwpadmax

comlpete diphsit
Aug 17, 2006
110
0
16
under my truck
This is kind of my thought with the AF but as of yet, again, not one case with evidence to back up claimed failures with new cranks and an AF cam that I have heard of anywhere. Once more get out there, maybe it will come about. Who knows. All I know is the evidence right now seems to support the theory it at least helps.

If it's a fatigue based failure, and these AF engines are primarily run in competition with low total cycles....I hope you realize the conclusion you're drawing is extremely weak, statistically speaking.

If these AF engines were in city buses or garbage trucks....THEN you would find out the truth much faster!
 

SSchmi5519

LLY Cult Leader
Oct 19, 2008
3,387
1
36
Arizona
If it's a fatigue based failure, and these AF engines are primarily run in competition with low total cycles....I hope you realize the conclusion you're drawing is extremely weak, statistically speaking.

If these AF engines were in city buses or garbage trucks....THEN you would find out the truth much faster!

Thank you.
 

S Phinney

Active member
Aug 15, 2008
4,008
18
28
Quncy, Fl
If it's a fatigue based failure, and these AF engines are primarily run in competition with low total cycles....I hope you realize the conclusion you're drawing is extremely weak, statistically speaking.

If these AF engines were in city buses or garbage trucks....THEN you would find out the truth much faster!
And that is why I chose to speak out. My truck sees more driving than track. It should be a good example of most guys with the exception if more hp. Triple turboed with 200 overs snd most all the upgrades. Even though I do tighten up on it every now and then.
 

Stingpuller

The Pusher Man
Jan 11, 2007
2,019
35
48
57
central Ohio
You just won't stop!

Wade is there anything that you haven't invented? Pay to be a vender or your rants about your ego trip are gone.
 

Yellow Jacket

WannaBe Sled Puller
Feb 11, 2009
917
0
16
Waterloo, IA
That's why some of the fastest duramaxs have a dodge trans right :D ? If money weren't a issues I'd have a billet 47re not a allison for racing personally and I love that hard shifting race feel they have

If you've seen some of the billet EVERYTHING 47re's that have came through Goerend's shop you wouldn't agree...if I had a 5000 lb or less race truck or daily driver yes... I've seen the 47re's that broke billet inputs and/or grenades the tiny planetary sets and destroyed whole cases and nearly every piece of the transmission... They are far from "bulletproof", and a 7500 lb truck with 850+ HP is hard on ANY transmission that's behind it, lol
 

WolfLMM

Making Chips
Nov 21, 2006
4,005
26
48
38
AL
If it's a fatigue based failure, and these AF engines are primarily run in competition with low total cycles....I hope you realize the conclusion you're drawing is extremely weak, statistically speaking.

If these AF engines were in city buses or garbage trucks....THEN you would find out the truth much faster!

I see this. But, how can reducing torsional stress in the crankshaft be a bad thing? Is it possible that this (AF cam) along with other solutions will solve this problem? Thanks for chiming in.