flywheel update
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Senior User
Joined: Nov 2004
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flywheel update
I just wanted to let everyone know that my welded flywheel is still holding up fine after 25000mi.I asked on here about welding the two halfs together last spring as we were headed out and my flywheel started to come apart and no time to change it out.3 am i machined 6 small piece of metal the same thickness as the gap between the two halfs,put a degree wheel on the damper to mark the flywheel and inserted and put 6 1'' welds making it solid.The small pieces of metal kept to two halfs spaced apart the same amount all around.The gear rollover was a litle loud untill I changed to 5l of mtl oil.Put on 25000mi. pulling a 10000lb trailer all summer and it worked fine.This in not a proper fix for everyone but in a pinch it worked fine and as that truck may become my parts truck for my new truck no point in changing it out now.
Tuned
Joined: Feb 2005
Posts: 368
Likes: 1
From: Berwick, PA
When I got my truck my flywheel was broken, my friend welded it in six places. My fix was more temporary and was a hit the key and weld, hit the key and weld. lol. I have about 1200miles on it. I have avoided driving it as I know its not right. But the welds have held up great. Putting my solid flywheel and 400HP 800ftlb torgue clutch from valair in on Monday at another friends garage after hours. 
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Does anyone have a picture of a stock clutch beside a clutch designed for a solid flywheel ? I'm guessing the aftermarket will have extra spring to take up the shock normaly absorbed by the dual mass flywheel.I was expecting with the welded flywheel I would have done the damage already but the tranny acually kept getting quiter threwout the year.
Hotshot
Joined: Oct 2003
Posts: 17,791
Likes: 98
From: Ashland City, TN
Does anyone have a picture of a stock clutch beside a clutch designed for a solid flywheel ? I'm guessing the aftermarket will have extra spring to take up the shock normaly absorbed by the dual mass flywheel.I was expecting with the welded flywheel I would have done the damage already but the tranny acually kept getting quiter threwout the year.
The main difference is the pressure plate.
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Senior User
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So the pressure plate takes up the extra shock of running a solid flywheel ? I was going to buy a new clutch flywheel set-up for the new ride but if there is no differance I may just weld up this one also as the flywheel is junk also.I'll spend the money saved on a scanner of sorts and buy a clutch set-up later.I was told do not weld it the last time but see no reason not to if the clutches are the same.I was expecting to see an extra set of springs in the clutch.After I welded it I always pushed in the clutch to prevent tranny damage.
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Hotshot
Joined: Oct 2003
Posts: 17,791
Likes: 98
From: Ashland City, TN
Well, of course the springs on the clutch are different, but as for shock, you'll get that either way.
The DMF is just a giant dampner. But uses a different setup on the PP, so you can't just buy a clutch and flywheel and use your old PP, thats what I was getting at.
I got some pictures of my clutch someplace. I'll look to see if i can see a difference in the actual clutch.
I'm sure there is a major difference, None of us would really know though.
I'm happy for you having the clutch work by welding it. thats neat.
Always good to know something will work.
I believe I told you not to weld it before, but I don't recall you saying anything about shimming it before welding it either.
the valair organic is a hell of a deal and they stand behind their products firmly.
Sorry bout that, I missed your main question.
No, the PP doesn't take up the shock.
the springs in the DMF took up the vibrations from the motor, but now yours is welded, its pretty much the same as running an SMF.
I was saying the main difference between the setups is the PP becides a 2 piece.. i mean 40 piece flywheel.
The DMF is just a giant dampner. But uses a different setup on the PP, so you can't just buy a clutch and flywheel and use your old PP, thats what I was getting at.
I got some pictures of my clutch someplace. I'll look to see if i can see a difference in the actual clutch.
I'm sure there is a major difference, None of us would really know though.
I'm happy for you having the clutch work by welding it. thats neat.
Always good to know something will work.
I believe I told you not to weld it before, but I don't recall you saying anything about shimming it before welding it either.
the valair organic is a hell of a deal and they stand behind their products firmly.
Sorry bout that, I missed your main question.
No, the PP doesn't take up the shock.
the springs in the DMF took up the vibrations from the motor, but now yours is welded, its pretty much the same as running an SMF.
I was saying the main difference between the setups is the PP becides a 2 piece.. i mean 40 piece flywheel.
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Hotshot
Joined: Oct 2003
Posts: 17,791
Likes: 98
From: Ashland City, TN
I had some, no idea what happened to them.
The only thing I can tell you is that the center hub of the replacement clutch will be far better than the one in there.
Better springs, better design, better everything.
The only thing I can tell you is that the center hub of the replacement clutch will be far better than the one in there.
Better springs, better design, better everything.
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I had some customers as about all the psd's on the yard and started talking and he removed his dual mass a few years back.Ford was going to sell him another for a couple of grand and never mentioned a single mass.He said he took his to the machine shop and got it made into a solid,not sure if it was welded of what but he has 90000 miles on it with no issues other than a little bit of gear noise at idle so guess I'n not the only crazy one to weld it.I was in a bind originaly the night I welded it but so far so good,don't fix what isn't broke,I know I should put a proper one in the new truck though.Before I do tear apart the new truck I think I am going to weld it and drive it for a bit and then put in a single mass and see what the differance is.
Tuned
Joined: Feb 2005
Posts: 368
Likes: 1
From: Berwick, PA
Here is the pictures of the clutch, I did it tonight. https://www.ford-trucks.com/forums/1...-w-pics-2.html
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