Home > Maintenance & Modifications > VCV Supplier |
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Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 3993 |
I bought a Denso VCV from PF Jones in Manchester. It’s done over 10k miles since I fitted it and still ok.
https://www.pfjones.co.uk/land-rover-defen...valve.html 2007 110 TDCi Station Wagon XS |
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17th Feb 2020 10:38pm |
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keef9t Member Since: 13 Mar 2016 Location: manchester Posts: 168 |
+1 for PF Jones
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18th Feb 2020 4:58pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
Thank-you both. I will order that ASAP and see how I get on. There are good guides on here and I have the WSM to help also. Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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18th Feb 2020 6:42pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
Purchased this VCV today. (Thank you.)
My 90 has not done the same behaviour as it did on the day that I described where it had cut out. But it has done this before in the past, rarely though and always in winter time when stone cold. I’m on about 76k miles on original VCV. She does seem a bit heavier on the juice lately too. Did anyone have this as a symptom at all? As the part is fuelling related I’m sure it has a significant effect. On this occasion I think the PRV will be okay as it is. Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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4th Mar 2020 3:58pm |
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williamthedog Member Since: 29 Dec 2012 Location: south wales Posts: 3441 |
It's easier enough to replace Steve. Move the wiring out of the way. Unclip the servo hose out of the vacuum pump to give yourself more room. Undo the 2 cap head bolts, pull the vcv valve out of the pump then disconnect the wiring last. About a 20 minute job. Dont worry about the pump relearn either. 👍
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4th Mar 2020 7:21pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
I think like most Puma motor related jobs the access is the most annoying thing.
I have the WSM details, and there are good threads on here about replacing it. What differences did you all notice once replaced? Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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4th Mar 2020 7:42pm |
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kmac Member Since: 07 Oct 2009 Location: Middlesex Posts: 1294 |
Mine was losing power intermittently and rather dangerously.
Replacing the VCV fixed that Didn't bother with the pilot re-learn ( even though I have a Nanocom) |
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5th Mar 2020 10:30am |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
Thanks KMAC, it certainly seems likely to be the culprit and it's fairly sporadic too like you described.
Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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5th Mar 2020 3:45pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
I got the VCV fitted by myself today, I didn't disconnect anything in the end but was a real pain to get at regardless.
I used various different 1/4" and 3/8" extension bars when needed, 1/4" torque wrench and a 3/8" UJ. A hex key with ball end was useful and also a 3/8" socket with hex key built in was needed. I managed to do the two stage torque settings too whilst at it. As advised before it was easier to leave the electrical connector on until the VCV was out, then disconnect. When the new VCV was in, it was best to fit the Connector on last. I did find the new fixings supplied were longer than the old ones, I carefull wound a new one in to see and wasn't quite sure if it would tighten up being longer and it still stood proud of the mating surface. So I decided to use to original shorter fixings, they aren't highly stressed or under high torque so they will be fine. I disconnected the battery beforehand. On starting up she gave a tiny cough then ran perfectly. Idle seems more smooth and throaty, went for a run although only about 5 miles. Power seems up and responsiveness seems better, nothing huge but noticeable especially on pulling off I.e. From junctions or hill climbing. I haven't looked at the old VCV yet, but no doubt I will sometime. Pleased with that, thanks for the advice everyone. Should anyone need the torque specs there is a two stage tightening process: 1) 5NM OR 4 lb.ft. 2) 8NM OR 6 lb.ft. I used an alcohol wipe to clean the mating surface, and pre cleaned the area with a microfibre (dry only.) before removing the old VCV. Not a very good pic, but here's a photo of the old one coming out: Click image to enlarge I would say I was right that it did need changing, as there is a difference there. 76k miles I wouldn't complain at either, I'm sure it's original from the factory fit. Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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16th Mar 2020 8:23pm |
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Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 3993 |
If you have still got the old one and have time, would you take it apart? There is a circlip in the end that holds the piston in. I’d be interested to see if there is any scoring or discolouration on the piston. On mine there was, and I think it is this damage that causes the piston to get sticky in bore and not regulate smoothly. 2007 110 TDCi Station Wagon XS
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16th Mar 2020 8:36pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
Yes, I certainly will do at some point. I have circlip pliers that should work.
Looking at the tip of it it does look like heat discolouration with a blue like hue. I am presuming that it is this you are thinking of but I haven’t actually looked at it internally yet though.. Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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16th Mar 2020 9:07pm |
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Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1024 |
Mines on 154k and idle when cold is a little hesitant and hunting abit
i'll order one for when i do the timing chain soon |
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16th Mar 2020 9:47pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19454 |
Today I had to go on a 50 mile round trip.
That gave me the oppertunity for a proper run with the 90. I can definitely tell that there is an increase in performance and responsiveness and increased power top end. I'm pleased with that outcome, I am pretty sure I can safely say it was the culprit of the issue I was having with the engine stalling when cold and rough idle etc. If you find any of these things to be an issue with no DTC's then the VCV could indeed be a culprit. Diesels Lives Matter. ⛽️🛢️👨🔧🧰⚙️ And if You Love the Country, then we’re on the same side ~ I got’ love for Britain, I got’ British pride’. 🇬🇧 |
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17th Mar 2020 8:29pm |
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Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 3993 |
I think it is possibly a ground and hardened piece so the heat discolouring might be fine. On mine, when I took it out, there were faint striations down the length of it. 2007 110 TDCi Station Wagon XS |
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17th Mar 2020 8:51pm |
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