I think UFI are doing them....

 

Harmonic dampener is what you are chasing. UFI i believe do quite good one for TD42s.
While im no full bottle on the whole harmonic issue, it seems that people that have hardened flywheels seem to be snapping cranks a little more frequently.
If you are upgrade power at some stage you will need to do the clutch perhaps lighten and balance the factory flywheel and smash on a UFI dampener.


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it seems that people that have hardened flywheels seem to be snapping cranks a little more frequently.

What's a hardened flywheel?

Cheers,

 

Yep UFI harmonic damper $1500 I think plus couple of mods

 

One with high carbon content such as supplied in viper kit and so forth.

May be other factors at play, as i said im not full bottle on the whole subject, and this is about all my knowledge on the subject.
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OK. I thought the issue with the Viper flywheel was that it is heavier than standard, didn't realise the hardness was a factor.

Cheers,

 

Pretty sure it was because their original ones weren't balanced

 

That probably contributed also but the harder steel reflects more harmonic vibration than a softer compound, such as mild steel or aluminum.

I recommend that you PM oldmav or ToughDiesels on here as they both have extensive knowledge on the subject and could point you in the right direction.
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Yea mate like i said im not full bottle. That is just somthing that i have observed.

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Far out !!(through want of a better phrase) $1500 for a harmonic ballancer? i now know why people f___ with the flywheel.. These crank failures? Are they the late model motors(TD42 TI) or earlier NA models?

 

No it's a Harmonic Damper. ATI

 

Cheap compared to new engine

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It kinda makes me laugh when people don't blink a eyelid at spending 6, 9, or even 12k or more on their truck to get it to move .
But then think spending a couple of grand to help it stay together after tripling it's power is like giving away there first born :roll: .lollollol.

.

 

Yeah.. point taken mate.. But $1500 for a harmonic? Id expect $600 maybe $700..

 

$1500 for new crank plus labour and other bits ?

 

Ross do one for a td42t for about $ 880

 

Anyone tried the Ross ? @bambill

 

Anyone tried the Ross ? @bambill

I installed one a few months back on my n/a td42 GQ as I had the front of the motor apart to fix a coolant leak. I cant comment on if its going help much as my td42 is still n/a until I fit the turbo kit. I liked that the Ross was a simple bolt on. Since bolting it on though I believe vibration through the car at idle has increased rather than decreased. My old damper was the original from 89 and had done 430K and seemed to soak up more vibration at idle. I have not noticed any difference when revving the motor.

 

I run the ATI Super Damper on mine.

 

I contacted Ross about there balancer and inquired about the design criteria.
I rather got the impression that the main thing was to eliminate the tapper lock.
Hmmm, unsure why that is important.
But when I pushed further and asked about some torsional vibration design stuff, they said it was designed for 260kw at 6500rpm, lol.

Yes I have seen broken cranks with a ATI damper, not overly powerful engines, 200rwkw or so.
The ATI style does require tuning for the application, hence why they make different Orings, inertia weights etc.

And yes I have broken a crank with my viscous style damper, 2 infact, second one well, for all I know it was cracked when I put it in, never checked.
And my first one, think it was just tired when I pulled it out in 3 pieces lol.

 

I do enjoy my td, and can justify the money spent but I ain’t spending another squillion on a dampener.
If it pops it pops it will get shafted out for something else.

In saying that we do have a few cranks laying about between a few of us on stand by.

 

@simcoe