 | Home > Tdi > Clutch slave cylinder 90 300 tdi |
 
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4712  
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Clutch slave cylinder 90 300 tdi. Is this a straight forward operation to change? 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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31st May 2022 10:19am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2246  
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Make sure you fit it with the bleed nipple uppermost or you'll spend a lifetime trying to bleed it š
HTH Mo The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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31st May 2022 11:14am |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4712
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Thank you.
 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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31st May 2022 11:14am |
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| spudfan Member Since: 10 Sep 2007 Location: Co Donegal Posts: 4712
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Yes access to nipples is always a positive  1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali 2008 110 2.4 tdci csw-Zulu 2011 110 2.4 tdci csw-Masai |
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31st May 2022 5:45pm |
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| LukeyJ Member Since: 06 Feb 2018 Location: Salisbury Posts: 15
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I have just replaced my master cylinder (Lof) and slave cylinder (trw) after a fault developed over 2 weeks my biting point on the clutch got lower and lower to the point that I could not engage gear.
When I removed the old MC it was full of crud and corrosion and what fluid was in there was basically water and oil. Replaced the parts until I hit my first problem. Took forever to bleed, went though 2 litres of fluid and still air coming out, finally got to a point that I felt there was no air left. Went to testā¦ Clutch pedal very light. (Also fitted Lof power spring) I can now engage gear, but clutch wonāt return! Will ping up if I give it a tap. Iām at a complete loss on what it could be to the point that my brain has melted and nothing makes any sense, so could be something Iāve completely missed 
Fitted the slave the correct way round. And when removing the old slave I retained the rod with some long nose pliers. That seems to be in place (didnāt want to tug to hard) Any help would be greatly appreciated. Apologies for hijacking this thread, thought it save starting a new one. Ps have don searches with so many different results. Thanks Luke |
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5th Oct 2022 12:46pm |
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| I Like Old Skool Member Since: 23 Feb 2015 Location: Manchester Posts: 819 
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Try removing the power spring.
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5th Oct 2022 12:57pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Hi Luke. When you say you retained the rod do you mean you took it out when replacing the slave cylinder? Those rods should be held in place by a clip on the back of the clutch arm. If you did not re-insert the rod in to the clip on the clutch arm properly then it can fall out in to the bell housing. That being the case there is not the return force of the pressure plate to push the rod back in to the slave cylinder and return the pedal back to its starting position. Having said that the first time I bled Miffy with the same setup as you I struggled to get it to bleed properly until I realised that the pedal was so light that I hadn't done it wrong at all  |
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5th Oct 2022 1:07pm |
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| LukeyJ Member Since: 06 Feb 2018 Location: Salisbury Posts: 15
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Will try removing the power spring later.
With regards to the rod I held it in place to prevent pulling it out with the slave. As I had read that when removing the slave you can accidentally pull the rod out too. It was a nightmare bleeding, felt myself going a bit bonkers |
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5th Oct 2022 1:14pm |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2246
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Screw the pedal stop bolt in a bit so that the pedal doesn't travel so far down, that should sort the sticking at the bottom. Ensure the clutch still fully disengages.
Mo The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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5th Oct 2022 2:05pm |
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| Dave T Member Since: 07 Jun 2013 Location: Glasgow Posts: 490 
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Mo is right. I fitted a Lof spring in my 300 tdi and the pedal stayed down. After much head scratching, I realised that I had an older bulkhead and clutch pedal box which didn't have the pedal stop.
I found a newer pedal box at the LRO show this year and have fitted, it just needed the stop winding in a bit to stop the pedal going too far. 2015 RRS Autobiography SDV6 1994 Def 90 300tdi |
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5th Oct 2022 2:55pm |
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| LukeyJ Member Since: 06 Feb 2018 Location: Salisbury Posts: 15
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Great thanks, thatās made some progress there. so adjusted the stop and set the pedal to 140mm with the rubber off (made an assumption there, so correct me if that was wrong)
So.. pedal has stop sticking in the down position and I can pull away.. but now the gear selection is crunchy. Does this mean I now adjust the push rod on the mc? If so, which way? This job may be simple to some and although I do most the work on my truck with no probs but this one has me baffled and tested me to the extreme š¤£ Thanks again |
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6th Oct 2022 10:27am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2246
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Morning Luke,
Providing that you're happy that the hydraulic system is bled, wind the forward nut (closest the end of the pushrod) further on. This will lower the pedal height a little but don't get TOO hung up on the 140mm height. Adjust a turn at a time and try driving it. If you adjust too far the clutch will slip under load so softy softy catchy monkey is the best approach. HTH Mo The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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6th Oct 2022 11:04am |
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| LukeyJ Member Since: 06 Feb 2018 Location: Salisbury Posts: 15
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Thatās great thanks Mo, I will look at that over the weekend.
Iām starting to think this is where I have messed up. Is not setting pedal/push rod adjustment la and just bolting it all on and bleeding. So I set the height with the adjustable bolt on the back of the pedal box. So from what you say I now need to do the nuts on the actual push rod. At the moment the 2 locknuts closest to the bulkhead are as far up as they will go (closest to the mc) the the trunion is up against them. Then thereās a gap and the nyloc nut is on the end of the rod. Does this sound wrong? Iāve got the lr guide but canāt make sense of it 
Thanks again |
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7th Oct 2022 10:50am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2246
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The adjustment bolt on the pedal box is just to limit the bottom of the pedal stroke, adjust in until the pedal returns each time. Take it for a drive and see how the clutch feels. Note where it starts to bite and that it disengages the clutch completely when you depress the pedal fully. Once that is established then you can look at adjusting the clutch rod.
HTH Mo Ps The book may tell you to set the pedal height using the stop but that's for the earlier type of pedal, not the one you seem to have. The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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31st Oct 2022 4:28pm |
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