Dual mass flywheel
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Dual mass flywheel
Does anyone have any comments about the dual mass flywheel on these trucks, I'm having some tranny problems, when I press in the clutch things seem to be working ok but when I shift to new gear and release clutch pedal it sounds like I have a tranny full of gravel. Any suggestions
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Joined: Jun 2014
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I do not like the durability inferiority of a dual mass flywheel, but if I was you I'd pull a pto cover. That description sounds like transmission woes. If it's a bearing issue, you might catch it before it becomes a broken everything issue and be able to overhaul it.
Postmaster
Joined: Dec 2011
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If you've got a 4x4 transfer case, try putting it in neutral and seeing what happens when you let out the clutch.
Oh, and I'm not sure what speed you're letting the clutch out at -- if your RPM is low(<1200 or so) when you let it out, you'll hear some gear-mesh sounds; keeping the revs up in the normal range(say 1400+) will quiet it down.
Oh, and I'm not sure what speed you're letting the clutch out at -- if your RPM is low(<1200 or so) when you let it out, you'll hear some gear-mesh sounds; keeping the revs up in the normal range(say 1400+) will quiet it down.
New User
Joined: Nov 2013
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I am no expert but I do have one comment about the DMF, they are friggin expensive.
Ours is not horrid but not great -- should have converted to the single when clutch was replaced but did not have enough info on it yet. Had a mechanic do the service and he said that one of the spring things was missing. I understand this is why it is noisy to turn off.
Ours is not horrid but not great -- should have converted to the single when clutch was replaced but did not have enough info on it yet. Had a mechanic do the service and he said that one of the spring things was missing. I understand this is why it is noisy to turn off.
Postmaster
Joined: Aug 2010
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From: Northern Arizona
^^^This^^^
Preferably you should perform the boat anchor conversion ~before the thing grenades and cracks your aluminum ZF main case. You DON'T want to add the price of a new transmission to you SMF conversion... That's friggin expensive...
More Turbo
Joined: Dec 2003
Posts: 585
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From: Upper penninsula
are you sure your truck still has a dual mass flywheel, or did a previous owner change to a solid flywheel?
Your transmission noise symptoms sound like torsional vibration excited gear knock, which is what you get without a dual mass flywheel.
Your transmission noise symptoms sound like torsional vibration excited gear knock, which is what you get without a dual mass flywheel.
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Logistics Pro
Joined: Apr 2005
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That's what I was thinking, but the OP states the noise is present when he is in gear.
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