guy lewis
Member Since: 13 May 2009
Location: leominster
Posts: 162
  
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| Water pump and oil pump with timing belt? |
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Hi all, a couple of horror stories on here this week regarding engine going bang!
Sorry to here this you chaps, hope you can get things sorted and it won't bankrupt you 
Anyway my question is, I'm about to do my belts and have a new genuine water pump that I intend to change at the same time. Is there any point in doing the oil pump as well, I have m.y 06 and although that seems to be an uneffected year regards oil pump pulley mount I would like to hear people's thoughts.
I'm doing the job myself as I can't trust dealer mechanics to do a thorough job ie not doing correct torque settings and changing all the idlers. All my parts are from Dan at duckworth so I have confidence in the fact I'm using lr components just not with the blokes doing the work. I know that's a bit of a sweeping statement but I'm sure you all know what I mean.
I will have the laptop on and following disco Mickey how to, and the Haynes manual. D3 bonatti grey
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 18th Sep 2013 11:13 pm |
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sarumlight
Member Since: 07 Nov 2008
Location: Off the Plain
Posts: 1590
 
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Well mine's an 07 (57 plate) and it's going to have a new oil pump fitted when the belts and idlers are done next week!
My pet theory is that the higher fuel pressure in the EU IV engines means the fuel pump causes more vibration in the belt, and that causes the casting to fracture, but it could equally be that some change in the alloy or casting process made them weaker in the later engines. Whatever the actual cause is, it seems that failure is much less likely in the earlier engines like yours, but it can still happen...
If I were in your position I would probably change it. I can't see a new oil pump being a bad thing...
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| 18th Sep 2013 11:24 pm |
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guy lewis
Member Since: 13 May 2009
Location: leominster
Posts: 162
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Cheers fellas. I'll be on to Dan or tlo in the morning ordering new oil pump.  D3 bonatti grey
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| 18th Sep 2013 11:35 pm |
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Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20731
 
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sarumlight wrote:My pet theory is that the higher fuel pressure in the EU IV engines means the fuel pump causes more vibration in the belt, and that causes the casting to fracture, but it could equally be that some change in the alloy or casting process made them weaker in the later engines. Whatever the actual cause is, it seems that failure is much less likely in the earlier engines like yours, but it can still happen...
If I were in your position I would probably change it. I can't see a new oil pump being a bad thing...
The HPFP lives at the top of the engine, in the middle of the "V" The oil pump sits down at the front of the engine. Could not be further away from each other, so I doubt its that.
TLO (I think) compared the original 07 pump against an 09 pump, and the difference was very clear, that there was a whole lot more supports and bracing on the new pump.
The pump on 05-06MY's was superseded to the 07MY pump when released, and that is when all the issues started.
I have never seen an 05 or 06 pump crack, so IMHO, leave it alone
That said, if you are doing it yourself, its only an extra £60 for piece of mind My D3 Build Thread
TDV8 Retrofit Build Thread
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| 19th Sep 2013 6:30 am |
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guy lewis
Member Since: 13 May 2009
Location: leominster
Posts: 162
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Mickey do you think I'm being over cautious doing the oil pump? If it's only 60 quid it's cheap piece of mind if you ask me, but I don't want to upset seals as there is not one drop of any fluid of any kind leaking from my engine. D3 bonatti grey
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| 19th Sep 2013 10:08 pm |
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trailhound
Member Since: 27 Aug 2015
Location: Colchester
Posts: 697
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Sorry to dig up an old thread.
Disco_Mikey, now a few years have past since your comment. Would you still give the same advice to leave the oil pump alone on an 05/6?
Thanks in advance
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| 4th Mar 2019 8:21 pm |
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Erea
Member Since: 19 Mar 2012
Location: Munster
Posts: 1509
 
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Well I just got my belts changed for the second time and I asked for the oil pump to be changed as well, the first comment from my indi when I collected it was that the oil light goes off a lot faster on start up, it had been taking along time to go out. He said it did have the first type of pump which doesn’t seem to have given as much trouble as the 2007/08 ones,
Mine is a 2006 on approx 320k km so it was just coming due.
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| 4th Mar 2019 8:50 pm |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6235
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I wont do any D3 belts now without changing the oil pump, they are all suspect.
Flack
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| 4th Mar 2019 9:40 pm |
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Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20731
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trailhound wrote:Sorry to dig up an old thread.
Disco_Mikey, now a few years have past since your comment. Would you still give the same advice to leave the oil pump alone on an 05/6?
Thanks in advance
No. The pumps are fracturing on the 05/06 cars, after their 2nd belt change
I always advise a new pump when doing belts. Not worth the risk, as it will effectively make the car uneconomical to repair if it does break My D3 Build Thread
TDV8 Retrofit Build Thread
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| 4th Mar 2019 9:45 pm |
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sarumlight
Member Since: 07 Nov 2008
Location: Off the Plain
Posts: 1590
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Would you change the pump now even if it’s a second belt change and the pump was changed for an 09+ one at the last change?
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| 5th Mar 2019 12:44 am |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6235
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sarumlight No it should be fine, But I have had customers who did want it changing even with the new pump version fitted. It does make the oil pump light go out a lot faster.
Flack
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| 5th Mar 2019 9:28 am |
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trailhound
Member Since: 27 Aug 2015
Location: Colchester
Posts: 697
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Disco_Mikey wrote:trailhound wrote:Sorry to dig up an old thread.
Disco_Mikey, now a few years have past since your comment. Would you still give the same advice to leave the oil pump alone on an 05/6?
Thanks in advance
No. The pumps are fracturing on the 05/06 cars, after their 2nd belt change
I always advise a new pump when doing belts. Not worth the risk, as it will effectively make the car uneconomical to repair if it does break
Thought you’d say that. Thanks for coming back so quickly.
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| 5th Mar 2019 5:39 pm |
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Captain Crosscheck
Member Since: 03 Sep 2021
Location: Oslo
Posts: 310
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Old thread being restarted again, sorry about that.
I'm about to change the belts on my new (to me) 08-model. It's driven 240k kms, and the pump hasn't been changed, according to the previous owner. Am I on double overtime, or are 08-models not affected? It's an early 08-model 
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| 18th Oct 2021 7:25 pm |
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