 | Home > Puma (Tdci) > LOF clutch master cylinder |
 
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| Angus_Beef Member Since: 30 Apr 2015 Location: Oslo Posts: 434   
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Same experience for me unfortunately Roaming around 🇳🇴🇨ðŸ‡
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25th Nov 2023 4:02pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 534 
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im still currently trying to get to the bottom of clutch fluid issues.. I replaced my clutch and hydraulic components including the master cylinder , and was immediately met with the fluid contaminating rather rapidly.. ill link to the thread in case you are interested..its still work in progress im afraid, as the original resealed grilling cylinder I put back on in place of the new lof cylinder is still turning dark with debris , maybe not as quickly... I intend changing the pipework at some point as that would get rid of the flexible rubber hose at the slave end of the system, and is the only part of the system that is original ....but as the lab report didn't indicate any aluminium contamination, I presumed it most probably wasn't a master cylinder material issue, I have nonetheless less reworked a cast iron master cylinder to fit my connections, which is yet another option... it all takes time to reach conclusions and eliminate causes, but ill report back on the original thread when I have any new developments 
https://www.defender2.net/forum/topic89524.html |
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25th Nov 2023 5:08pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3645 
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my LOF master cylinder also lasted all of about 6 months before I spotted fluid on the floor mat and the fluid had turned black, it was fitted by a well known and respected supplier whom replaced it with a Wilwood one which has been OK for several years. DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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25th Nov 2023 7:31pm |
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| wyvern Member Since: 13 Dec 2009 Location: Cornwall Posts: 2117 
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I had an issue with the ‘uprated’ LOF slave cylinder failing and having to have the clutch out again to replace it after less than a year.
Now have an OEM slave fitted with the LOF clutch and the LOF master cylinder, but keeping an eye out on the master incase of failure.. We spoke to LOF at the landrover show in the summer and they said that the master cylinder should not be changed till after the clutch had settled in (12 weeks or so) ... as stated on the instructions ...!!! 
Needless to say I was not that impressed, however now know what to watch for. Poppy - TDCI (Puma) 110XS 2.2 - Camper conversion - see the build here - https://www.defender2.net/forum/topic56530.html Elgar -TDCI(Puma) 110XS Dormobile - now sold Devon & Cornwall 4x4 Response - DC126  |
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26th Nov 2023 8:43am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 534
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What reason is given for not changing the master cylinder at the same time as a clutch replacement..
Needless to say that's what I did.. 😩, Nothing mentioned at the point of sale when it would have been obvious what the intention was... But I did not see the instructions you refer to🫣.. And what if the master cyl needed changing at the same time??? Or was the main issue that prompted the whole job?? |
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26th Nov 2023 9:20am |
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| kmac Member Since: 07 Oct 2009 Location: Middlesex Posts: 1309 
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From their links to buy...
This Master can be fitted to All Defenders & Series 3, Also can be fitted with LOF POWERspring for best results *Cannot be fitted in conjunction with the LOF POWER Slave cylinder* * Please do not fit with a brand new clutch until it is fully bedded in- reason being a new clutch has a low biting point, and the LOF master also lowers the biting point somewhat, therefore combined it can be awkward to Drive, hence it is best to bed any new clutch in for 3-4000 miles before fitting, allowing for the biting point to rise up to a middle ground* |
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26th Nov 2023 8:38pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 534
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Thanks for that.. I obviously missed it, but I needed both doing so I suspect I'd have had to fit both anyway..
I thought mine was a hydraulic issue.. Ie failed mater, but when I looked at the clutch the springs in the friction plate were goosed anyway.. Anyhow I didn't experience any issues with the workings of the clutch.. |
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26th Nov 2023 9:36pm |
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| piechipsandpeas Member Since: 12 May 2021 Location: Albany, Western Australia Posts: 215  
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Fitted the new one yesterday. No issues apart from cleaning up all the brake fluid that had leaked out of the old one. Does anyone know if you can rebuild the LOF ones as I could keep the old one as a spare. I like the feel of the LOF one with its operation requiring less pedal effort, but to have to replace after such a short timeframe isn't really acceptable. Surely improving the quality of the components to last longer wouldn't increase the retail price that much.
Hi LR90XS2011, do you know which Wilwood one you had fitted? Had a look at their website, they seem to be a decent quality brand. To bleed the clutch I now use my good old Gunsons Easibleed which makes it very easy and quick and always results in good pedal pressure first time round. I did a quick measure of the clutch piping (see long section sketch below) which shows why air becomes easily trapped and can result in it being so difficult to bleed. The measurements show that bleeding from the master cylinder to the bleed nipple adjacent to the cylinder you have to push air a total of 59cm downwards, whilst even reverse bleeding you have to still push it 32cm downwards. So it doesn't matter which way you bleed it you still have to force any air in the pipe a considerable way downwards against its will. Click image to enlarge |
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27th Nov 2023 12:53pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3645
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unfortunately I cant see the details on it, it clearly has a larger bore than the LOF one as the clutch became heavier when fitted and the bite point moved up a bit.
Click image to enlarge Have taken a photo but cant see any markings that help, it was supplied and fitted by IRB so Ian may be able to help DEFENDER 90 TDCI XS, I hope everyone is well and your land rovers make you happy |
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27th Nov 2023 7:20pm |
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| HardCharger Member Since: 03 Mar 2013 Location: Manila Posts: 740  
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I actually encountered the early fail of my LOF power master cylinder too. When contacting LOF, I was asked a few questions and it was determined that mine was apparently from one of the first batches and that this batch had cylinders that failed quickly. Maybe yours was from the same batch? I was told by LOF that they'd send me a new one when I ordered something else from them. My LOF spring snapped, again an early batch issue apparently, same solution applied.
Willwood looks like a good solution. My clutch leg was actually looking for the stiffer pedal for precise control. |
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28th Nov 2023 2:49am |
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| piechipsandpeas Member Since: 12 May 2021 Location: Albany, Western Australia Posts: 215
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Thanks LR90XS2011 for the photo. I think it is likely to be their GS Compact one, the original LR ones seem to be Girling manufactured and very similar.
I also like the fact you can buy a Wilwood one and fit a remote reservoir. This would, depending on where it was mounted, make checking the fluid and bleeding the system a whole lot easier as space to the existing reservoir is pretty limited as well as with it being inclined meaning the reservoir isn't always as full as it could be. |
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28th Nov 2023 5:23am |
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| piechipsandpeas Member Since: 12 May 2021 Location: Albany, Western Australia Posts: 215
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I also changed out the clutch switch for a new one at the same time. After a few days of driving around I must say what a huge difference it has made to the way the car drives, especially in first and second gear. It is an awful lot smoother when throttling on/off, I wouldn't have thought it would have made such a difference, but glad I did it. It's almost civilised now.
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30th Nov 2023 12:46pm |
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| piechipsandpeas Member Since: 12 May 2021 Location: Albany, Western Australia Posts: 215
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Just to update on the longevity of the replacement LOF master cylinder. I managed to get it to last 6 weeks!!!! The pedal wouldn't fully return to its original position, thought it might be the slave cylinder on its way out but when I went to rebleed the system I found that the master cylinder piston was getting stuck in the bore.
So I changed it out for a Wilwood - GS Compact with a 3/4" bore which matches the original LR one so gives the same pedal height and shorter stroke, which I prefer. I have fitted the LOF pedal spring which reduces the effort required to depress the pedal, but retains the original feel. After 4 months all is good, and the Wilwood is also rebuildable should/when the need arises. |
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12th May 2024 11:43am |
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| Waka56 Member Since: 08 Nov 2023 Location: Hamburg Posts: 163 
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Anyone had this problem before, I changed the slave cylinder and the adaptors, when I went to bleed, it took a while so after a while, I asked my gf to pump while I left the bleeding "button" on the closed position, and WTF, the liquid still came out 3-4 times while she was pressing the pedal. So I went to cry a bit (well, at least severely depressed) because I knew if this was broken I'd have to do the whole job again and I was supposed to leave in the following 2 hours, and when I went back under, I had a quick fumble with it, and it was all good... I drove the 800kms back with Zero problems, don't know if anything could just happen any time
 Making my Defender great again. (Or trying to at least xD) |
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13th May 2024 10:24am |
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