 | Home > Td5 > Flywheels.... how much is too much? |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17581   
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I may be wrong (and if so I am sure that I will be corrected!) but I thought that there should be zero free play between the two parts. I have the old one of my Disco 2 in the garage and that had no relative free movement, but even so was junked for reasons of suspect wear and poor clutch perfomance (judder and snatch).
Mind you the new one that went in wasn't much better. it is still my intention one day to fit a Rakeway solid flywheel conversion and sort the clutch out once and for all. |
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8th Mar 2012 3:45pm |
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| chiefstoker Member Since: 11 Oct 2010 Location: Weston-super-Mud Posts: 897  
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I just had mine changed on the car, it needed changing. There was no visible freeplay by hand. Toyed with the idea of going solid flywheel but ended up with a dual mass again. If this happens in my Defender I'm not sure which way to go. Presumably a solid flywheel doesnt absorb the engine shock so much so is a more argricultural drive (if thats possible
 ) - but its a permanent fix yeah??
What are the comparable pros and cons of each type of flywheel? 2005 TD5 90 Hard Top Beer 'n Sex 'n Chips 'n Gravy  |
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8th Mar 2012 7:06pm |
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| twopoint6khz Member Since: 18 Aug 2011 Location: North Lakes Posts: 654 
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There shouldn't be any free play in a DMF - the idea is it's two sprung masses connected together, with no slop.
In terms of replacing it with a single-mass unit, this obviously solves the problem of them breaking up but instead passes the vibration straight on to your transfer box / gearbox. Probably cheaper to stick with the DMF in the long run, and just change it whenever the clutch is changed or the gearbox is out. Last edited by twopoint6khz on 8th Mar 2012 7:15pm. Edited 1 time in total |
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8th Mar 2012 7:09pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6124 
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The bloke i got it off (Tractor mechanic, proper dealership jobbie) said there was no juddering from his 90 when he changed it (he had the leaking fuel regulator, so the clutch needed changing anyway. As his td5 is chipped he changed it to a solid flywheel whilst it was apart) said that there seemed to be no noticable difference in driving from the dual mass to the solid flywheel.
A couple of other people i've spoken too have said the same thing too. As it's going to be going into my budget laning toy, i think i'll just wing it and see if it works... only gave £20 for it anyway!   |
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8th Mar 2012 7:14pm |
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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670 
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Sounds like it may be a engine or gearbox mount that needs replacing. |
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9th Mar 2012 10:58am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17581
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With a reputable conversion (ie probably not the infamous "blue box" products) the only noticeable difference between the original set-up and a solid flywheel conversion will be the likelihood of marginally increased chatter in neutral with the engine running. There should be no real difference in the drive characterstics, except that the propensity of the thing to develop snatch and judder should be greatly reduced (always been an issue on my Disco) and also you won't need to replace the flywheel as well as the clutch every 150k miles.
The solid flywheel does of course necessitate the use of a sprung driven plate. It is interesting to note that Landrover's dual mass experiences with the TD5 led them to revert to a single mass flywheel on the Puma. |
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9th Mar 2012 1:01pm |
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| nosnibod Member Since: 15 Aug 2007 Location: West Midlands Posts: 370 
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My experience with a solid flywheel lasted about a month before the extra high-frequency vibration and noise made me remove it. It really does shake the gearbox and engine a lot more and passes it through to the cabin.
Once a new dual-mass one was installed it was all nice and quiet again. It was not a blue-box product either... Dave Green Goddess - 1998 Defender 110 300tdi |
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9th Mar 2012 5:06pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5799 
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I changed my DMF at 100 thou miles, as a precaution. Ther must have been 15-20mm of play, but still drove and felt fine.
So I would think one with 3mm of play will be fine for your toy Jamie Andy |
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10th Mar 2012 8:58am |
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