Welded my DMF

[65sixbanger]

Ok I couldnt stand the clattering of my DMF anymore so I welded the two pieces together today, and it worked great. I didnt have time to completely finish but there is probably 10-12 beads that are about an inch long around the flywheel. I will admit the gear noise is kinda loud, but nothing I didnt expect. I am going to add some atf and see if that queits it down any. We put a SMF conversion in a 6.7 cummins and its about the same noise level.

I also did the clutch about six months ago and I got a disk that had springs in it so I am good there.

 

[RLDSL]

Now to find out how well balanced your eyeballed welds are. If they aren't pretty darn close, they will likely shake themselves apart

 

[LCAM-01XA]

Rob, would a full-circle continuous weld be better in that sense?

 

[pdfhick69]

it really would be better, if you had access to a positioner a good welder would be able to do an almost perfeclty balanced job, probably close enough to not notice it at all

 

[LCAM-01XA]

this may be a very dumb question, but what's a positioner?

 

[RLDSL]

this may be a very dumb question, but what's a positioner?

It's a rotator you hook the piece on and it moves the piece under the welder at a set speed to keep the weld layout consistant. as he said, a good welder could lay out a near perfect balance with one of these rigs

 

[LCAM-01XA]

Those would be real nice to have...

 

[typ4]

On a cast iron flywheel it wont matter it is going to crack anyway. Unless I am missing something about the dual mass.

 

[65sixbanger]

I think the dual mass is pressed, It welded perfect and didnt act like cast. Still holding just fine... Just to test it out, I put it in 1st and let the clutch out until the engine died and nothing cracked.