 | Home > Technical > Possible transmission slack and remedy |
 
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816   
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My Puma makes a noticeable "clunk" sound when changing gears upward, certainly from 1 to 2, 2 to 3, and 3 to 4... I presume that it is some slack in the transmission, either propshaft, UJ, or even in the diff. I cannot be 100% certain, but sound seems to come from under the rear of the truck. It has always been doing this, the "clunk" is not really dramatic, but noticeable anyway.
Made an appointment at dealer for checking this out next week, any advise as to what the most likely cause would be, and what they should do to properly remedy this? Would it be a matter of tightening things up, or if there is some slack somewhere, would it mean replacement of any of the parts at cause? Truck is still in extended warranty period here, which I Switzerland works quite well. Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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13th Mar 2014 9:28am |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816
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Tks blackwolf for this extensive sum up of potential issues. Will come in handy to discuss with dealer next week when the truck goes in for checing this.
Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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13th Mar 2014 11:09am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7688 
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most likley drive members. Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Mar 2014 12:57pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816
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James, "drive members" ??? Can you explain what you mean by that?
Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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13th Mar 2014 4:19pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16890  
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The first item on my list!
The drive member (or drive flange) is the part which fits on the splined outer end of the halfshaft and bolts to the hub to transmit drive from the halfshaft to the hub. |
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13th Mar 2014 4:38pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2262  
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and a stuffed clutch would not damp most of the slacks. Puma 110" SW
............................................................. Earth first. Other planets later |
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13th Mar 2014 5:05pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816
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Is what you refer to showing in the following picture and parts list? If so, which numbers in the picture and which part numbers could be the likely culprit? http://www.landroverworkshop.com/diagrams/...0455_52627 You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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13th Mar 2014 5:27pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16890
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Drive flange is item 17, same on both sides of vehicle (and on front axle)
Halfshaft item 1, obviously not the same on both sides. That picture/page really doesn't work on a phone! |
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13th Mar 2014 6:09pm |
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| VeeTee Member Since: 06 Mar 2011 Location: Somewhere Posts: 1512 
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Eric, I found some helpful info here.
There are many parts and joints involved in the drive train - gearbox, transferbox, propshaft, differential, half shafts, drive members - and every joint between to parts has a little play. All those little plays add up and it is inevitable that there always is some residual play. However, you can try to minimise each play and for the residual play you'll have to learn to handle it - it is a thing common to all 4x4 cars. Cheers, Vincent 1959 Polynorm 1/4 Ton Trailer, Olive Drab Green (sold) 1970 M416 Military Trailer (Camping Trailer Conversion), Epsom Green (sold) 1975 Series III 88 V6, Light Green (sadly sold) 1996 Defender 110 CSW 300 Tdi, Epsom Green (sold) 2000 Freelander 1 TD4 3-drs, Silver (sold) 2006 Freelander 1 TD4 5-drs Facelift Automatic, Tonga Green (sold) MySite |
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13th Mar 2014 6:38pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7688
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Sorry, my fault i missed it on your reply when i scan read. i will butt out. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Mar 2014 10:02pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16890
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No worries, I wasn't having a dig!
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13th Mar 2014 10:43pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816
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Vincent, thanks for that link. Will relay it to my dealer prior to taking the truck there next week, and will specifically ask them to also check the halfshafts for wear. As to knowing how to handle the transmission, well, if there is one person who changes gears here with respect, it is probably me. The clunk though has always been there, I guess actually from new. I only started to pay attention to it after driving the "Hunter" of kitoper here, and his transmission makes no noise at all. The good thing is that my dealer this week recognized that there is a transmission clunk that should not be there, so we will see if they find the cause next week and remedy it. Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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14th Mar 2014 6:55am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265  
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not wanting to open a can of worms......
I've found that while driving all can seem ok but for whatever reason when changing gear due to a lack of responsiveness to throttle imputs changing gear smoothly can seem almost impossible.......and to me give the impression of drive train slack. no idea what the answer is etc just food for thought. |
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14th Mar 2014 7:28am |
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| VeeTee Member Since: 06 Mar 2011 Location: Somewhere Posts: 1512
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I actually though you would. 
Let us know what th outcome is when the truck is back from the dealer. Cheers, Vincent
1959 Polynorm 1/4 Ton Trailer, Olive Drab Green (sold) 1970 M416 Military Trailer (Camping Trailer Conversion), Epsom Green (sold) 1975 Series III 88 V6, Light Green (sadly sold) 1996 Defender 110 CSW 300 Tdi, Epsom Green (sold) 2000 Freelander 1 TD4 3-drs, Silver (sold) 2006 Freelander 1 TD4 5-drs Facelift Automatic, Tonga Green (sold) MySite |
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14th Mar 2014 8:08am |
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