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Home > Technical > Rocker and valve wear |
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NoDo$h Member Since: 27 May 2008 Location: fings go booooom. Posts: 490 |
Anyone know what the correct oil pressure should be? Live readings are great, but only if you know what the expected range of values is. Current driveway contents:
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16th Aug 2022 8:23 am |
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Badger51 Member Since: 01 Mar 2014 Location: Coffs Harbour Posts: 962 |
This from the Haynes manual!
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16th Aug 2022 8:37 am |
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Lucx Member Since: 11 Jul 2022 Location: sud of italy Posts: 26 |
interesting bernie you have the link of the discussion, to understand how it was verified, it is nice to read this interest and participation. do you have the version without dpf? The strange thing that I could not find anything about this, on the non land models that have this engine, citroen, ford duratorq 2.2 tdci etc. |
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16th Aug 2022 7:22 pm |
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bernie7sk Member Since: 23 Aug 2015 Location: bratislava Posts: 12 |
https://www.freel2.com/forum/topic31826.ht...l+pressure
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16th Aug 2022 8:11 pm |
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Lucx Member Since: 11 Jul 2022 Location: sud of italy Posts: 26 |
Thanks Bernie, I have read everything even if I do not think it is directly the cause of the failure of my engine, always quality filters and I have read other cases with service from mamma land. As a layman and with the few data available, I have only read about cases with a dpf engine, so I thought about the specific c1 oil that helps in consumption and dpf filter but is not the best for engine protection |
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18th Aug 2022 12:08 pm |
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I Like Chips Member Since: 25 Jun 2017 Location: Ascott Under Wychwood Posts: 1540 |
Just wondering could you tell me why you say the C1 oil is not the best for protection please |
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18th Aug 2022 3:23 pm |
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bernie7sk Member Since: 23 Aug 2015 Location: bratislava Posts: 12 |
Due to the particle filter, the C1 has a reduced, basically main, anti-friction additive ZDDP. simply put, it's phosphorus and zinc. I thought so too, but on the Russian forum I saw a car with stripped rockers from 2007. I don't think that a 2007 car would have a filter, especially in Russia. on the other hand, I don't know what kind of oil they used there. then there is the problem of why some rockers from one engine are perfectly fine. I think that for the time being in this issue, each answer will give birth to more questions... |
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18th Aug 2022 4:56 pm |
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Lucx Member Since: 11 Jul 2022 Location: sud of italy Posts: 26 |
I agree Bernie,
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19th Aug 2022 8:10 pm |
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Lucx Member Since: 11 Jul 2022 Location: sud of italy Posts: 26 |
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21st Sep 2022 7:23 pm |
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Jagracer Member Since: 22 Feb 2019 Location: east anglia Posts: 196 |
Definately a poor oil quality wear result. According to correspondants on other forums, a lot of garages use drums of bulk cheap oil for servicing their customers cars. They certainly do around my area, as I have supplied the currect oil to them myself. A lot of main dealer serviced cars are using cheap oil, not expensive Castrol Edge, etc. When I was management in an engineering company some years ago, I used to buy Fleet Taxi Spec. Havoline oil, as it it had a long life additive in it. I have a FL2 engine in the shed if you need it. 145k miles, it was thought to be seized, but turned out to be a stuck starter motor. |
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22nd Sep 2022 11:45 am |
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bernie7sk Member Since: 23 Aug 2015 Location: bratislava Posts: 12 |
in further research into what could be causing the problem with the rockers and valves, i came across an article about soot in engine oil. soot, especially that from the EGR, collects in the oil and the valve train suffers the most, where the oil film is thinner than the soot particles. with more content, they clump together and become even larger. they are abrasive and even have the ability to displace oil. on the other hand, the piston group and the crank mechanism (mainly our engines have it massively) is quite resistant to this problem. the crank floats in pressure oil and the pistons are also well supplied with oil and rarely just a base film remains. otherwise, the only thing left to protect DW12 engines is frequent oil changes and the best way to turn off the EGR system. during operation, avoid combining high revs with a cold engine or long idling with a hot engine.
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7th Apr 2023 6:32 am |
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I Like Chips Member Since: 25 Jun 2017 Location: Ascott Under Wychwood Posts: 1540 |
What's the take home with the engine wear
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7th Apr 2023 7:50 am |
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Kot Member Since: 04 Apr 2023 Location: In the ~Garden Posts: 83 |
I would love to see what else you have in that shed |
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7th Apr 2023 10:43 am |
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Nodge68 Member Since: 15 Jul 2020 Location: Newquay Posts: 2082 |
All of those things will help. Maybe swapping to a 5w40 oil too, which has a slightly increased film strength over 5w30. Hyundai Ioniq 5 Ultimate. The family car. 2009 Rimini Red SE TD4. Gone. 2006 Tonga Green i6 HSE. Gone. Audi A5 convertible, my daily driver. 1972 Hillman Avenger GT, the project. |
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7th Apr 2023 4:27 pm |
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