Steigemeier Stage V Torque Plate Issues

Status
Not open for further replies.

latemodelracer2

Boosted Beyond bolt ons
Established Member
Joined
May 18, 2002
Messages
3,352
Location
Jasper, AL
The first time mine broke
stiegweld.jpg


This is the second time mine broke.
080269f1.jpg


I have now had mine removed to avoid problems.
 

VirtualSVT

lolololololololololol
Established Member
Joined
Dec 9, 2004
Messages
25,685
Location
Tallahassee
The alloy of the aluminum determines the grade. The "60""61" is a numerical designation for the percent of present elements. I dont remember off the top of my head which one represents what so Ill do a little research.

Yeah I know that. I was talking purely about the differences in aircraft grade and non and how there is no tangible difference.
 

latemodelracer2

Boosted Beyond bolt ons
Established Member
Joined
May 18, 2002
Messages
3,352
Location
Jasper, AL
That is good info to know. If the plate welds all cracked & the plate was loose what would then happen. Would I feel an obvious loss in power or is it something you would only see on the dyno numbers???

mine didnt lose any power but at 1,750 rpms it sounded like a dremel was hamered down on the inside of the eaton case.
 

JMD0346

Active Member
Established Member
Joined
Jan 28, 2003
Messages
4,052
Location
Columbia, S.C./ Bagram, Afghanistan
That would be odd, considering I told Dwight to start this thread.




Anyone else that has had issues with broken welds on their blowers should post up pics too. I larger sampling size of failed weld could help shed some more light on where the problem is originating from.

Could it be that the cast case, welds, and plate all have different coefficients of expansion and what we are seeing here it the result of thermal stress on the various components (basically the case pulling away from the plate, or vice versa, as it expands)? Any opinions on that?




Very good point.


That is the basic reason the welds will never hold.

Even with hq material. Aluminum stock and cast aluminum react to heat differently. Therefore you cannot, will not, get a consistant weld when trying to marry the two.
 

JMD0346

Active Member
Established Member
Joined
Jan 28, 2003
Messages
4,052
Location
Columbia, S.C./ Bagram, Afghanistan
The first time mine broke
stiegweld.jpg


This is the second time mine broke.
080269f1.jpg


I have now had mine removed to avoid problems.



You can look at those welds, especially the 1st pic and tell they arent any good. They are just laying up there looking good. Not burnt in at all.

This is direct result of trying to weld together aluminum and cast aluminum. Period.
 

silverserpant

Member
Established Member
Joined
Jul 3, 2009
Messages
275
Location
windsor ontario
another problem is welding material of two different thickness, you can not meet in the middle for penatration. Also all those welds look to be MIG maybe with a tig a little more time could be spent making beads instead of tacking with a mig.

As for the piece falling off it is weird to have it crack in a circle a fall out???? not saying it didn't crack but in the first pic at the top of the hole you can see where it was held to the plate and removed. imo
 

Parts-is-Parts

Active Member
Established Member
Joined
Apr 4, 2009
Messages
1,268
Location
Parts Room
Why doesnt he just use the same silicone used on the factory intercoolers instead of the weld at that point?

Simple, flexible, it works!
 

Fourtrax250R

Member
Established Member
Joined
Jul 27, 2007
Messages
228
Location
NJ and FL
so, what are the symptoms here? besides actually removing the Eaton, would there be any way to tell if the plate/welds are failing? I guess the only way to tell is when we here a whole bunch of rattling coming from the eaton?
 

sc98cbra

Active Member
Established Member
Joined
Jun 23, 2008
Messages
2,229
Location
Charleston, SC
Subbin... I have a $20,000 DD 04 cobra sitting outside right now... I would like Steggy's input on this, or atleast an easy fix...
 

mustangtw

Member
Established Member
Joined
Apr 8, 2007
Messages
499
Location
south carolina
Subbin... I have a $20,000 DD 04 cobra sitting outside right now... I would like Steggy's input on this, or atleast an easy fix...

Well if there is a fix, it's more than likely going to involve pulling the blower. So, depending on your mechanical abilities, you may or may not consider this easy.
 

Jimmysidecarr

Semi user friendly
Established Member
Joined
Sep 15, 2003
Messages
14,395
Location
Spring, Texas, United States
Look at the welds, or if you just need to go nuts have it Magnafluxed.

LOL @ Magnafluxing Aluminum. Try Xrays. Sorry I shouldn't make fun.

I have an idea why even thicker plates could crack and separate besides the obvious under penetration of some of the welds.

The one pictured that has a chunk fallen out, I believe was vibrating at a certain resonant frequency. That corner was unattached, and with a combination of supercharger air pulses, engine/supercharger vibrations and harmonics, it would really take off vibrating when ever it's resonant frequency was present.

This would eventually work harden the area that was experiencing the most movement and it would break.

That's what I think has happened on the ones I've seen so far.
 
Last edited:
Status
Not open for further replies.

Users who are viewing this thread



Top