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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
Do you need to change the clutch after tuning?
I installed a second hand PSI power box. (yes I know a proper remap is better etc. but at a price off a tank diesel in holland (not UK) I could not resist trying it and it works gooood)
So good in fact that my clutch is not up to it. I can fully accelerate without the box switched on but when I switch on the box I have to be carefull with the throttle. On full acceleration the clutch starts slipping at about 1800 rpm.

My 90 has done about 90 k miles it could be the original clutch and it sometimes makes some noise after being parked for a few days, so it could be on the end off it's life.

So my question is:

Is a standard clutch upto the task if a td5 is tuned and is my clutch on the end off it's life and would it start slipping next month anyway or do I need to look for an uprated clutch?

The funny thing is that last Sunday playing off-road I didn't notice the clutch slipping at all and I am driving 35" simex.

 Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #281501 12th Nov 2013 8:47am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17348

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Standard clutch should be quite adequate for a TD5 with a PSI Powerbox, is does sound as though you need a new one.

I know of a TD5 Disco2 which has been running a PSI Powerbox and standard clutch for 60k+ miles with no issues whatsoever.
Post #281507 12th Nov 2013 9:10am
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
I was thinking the same but as there is many experience here with tuned td5's I just want to know it for sure. Mr. Green

It would be a pity replacing my clutch and then find out that a standard one isn't strong enough.

How many HP/torque would a standard clutch hold? Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #281517 12th Nov 2013 9:45am
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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6090

United Kingdom 2006 Defender 110 Td5 SW Epsom Green
Clutch on my 110 slips like Censored when I boot it (tuned with VGT turbo and 1.2:2 t/box)

When I built it i had the wrong slave cylinder in it, so it was like having your foot resting on the clutch for the first 3000 miles of its life.

then the fuel pressure regulator leaked, so covered it all in diesel (worth checking that on your one... the diesel doesn't take long to "burn off" once you fix the regulator)

So mine needs doing too. I'd say if you have a high power tune, or hi load (as in, towing, big tyres, over geared etc) then the clutch needs to be in tip top condition.
Post #281529 12th Nov 2013 10:09am
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adafish



Member Since: 30 Mar 2009
Location: atherstone
Posts: 1381

United Kingdom 1984 Defender 110 300 Tdi DCPU Stornoway Grey
and do it ENGINE OUT....find that the easier way.. Putting Dreams on Drives at JLR Solihull..
Post #281538 12th Nov 2013 10:38am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17348

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I have never heard of a TD5 clutch in good condition slipping, irrespective of power and/or load, and if it slips I would always take it as a sign that something was wrong.

With my Disco2 I have often towed up to 3.5 tonnes with no slippage. The day I towed 140 tonnes it was slipping a bit to get the load moving and there was a very hot clutch smell, but it was fine afterwards!

If you had a seriously radical tune and greatly overloaded the clutch I would expect the DMF to fail first. There is I believe a small number of TD5s running around the 250bhp mark as far as I know on standard clutches.

One of our 'in-forum' tuning gurus is probably best placed to answer this question.
Post #281554 12th Nov 2013 11:25am
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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6090

United Kingdom 2006 Defender 110 Td5 SW Epsom Green
adafish wrote:
and do it ENGINE OUT....find that the easier way..



+1 Thumbs Up
Post #281573 12th Nov 2013 1:22pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
Is it not possible like how I did it with my Camel Discovery, just move de gearbox 25cm backwards to get just enough space to change the clutch? Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #281583 12th Nov 2013 2:40pm
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diesel_jim



Member Since: 13 Oct 2008
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Posts: 6090

United Kingdom 2006 Defender 110 Td5 SW Epsom Green
If you've got a decent trolley that will carry the 'box, then yes.

Removing the engine saves lying on your back for hours on end (enless you've got a ramp/pit)
Post #281595 12th Nov 2013 3:42pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
Whistle I did it in a real workshop on a bridge from my parts supplier Twisted Evil

Byt if you work on the ground I think the most time you will be on your back anyway to loosen everything under the car. The time just to change the clutch and pressure plate is 30 minutes?

Would you replace the DMF also? Or only if you see anything wrong?
And what to look for with the DMF? Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #281666 12th Nov 2013 7:33pm
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Sphere



Member Since: 26 Apr 2013
Location: Midlands
Posts: 725

United Kingdom 2015 Defender 110 Puma 2.2 USW Keswick Green
blackwolf wrote:
I have never heard of a TD5 clutch in good condition slipping, irrespective of power and/or load, and if it slips I would always take it as a sign that something was wrong.

With my Disco2 I have often towed up to 3.5 tonnes with no slippage. The day I towed 140 tonnes it was slipping a bit to get the load moving and there was a very hot clutch smell, but it was fine afterwards!

If you had a seriously radical tune and greatly overloaded the clutch I would expect the DMF to fail first. There is I believe a small number of TD5s running around the 250bhp mark as far as I know on standard clutches.

One of our 'in-forum' tuning gurus is probably best placed to answer this question.


How much did you tow?? 140 tonnes! Bow down

What did vosa say?
Post #281673 12th Nov 2013 7:46pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
I think you'll find he was moving one of his hobbies (not the caravan!) 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #281683 12th Nov 2013 7:55pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17348

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Actually it was only 124 tonnes, I checked. Dead class 47 diesel loco needed moving a short distance in a rail yard.

It was actually easier to move than you might think.
Post #281750 12th Nov 2013 10:04pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Are you up at newberry this weekend roger? 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #281752 12th Nov 2013 10:07pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17348

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Ha, thought it was you! Yes, Friday to Sunday.
Post #281758 12th Nov 2013 10:21pm
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