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ph1ll
Member Since: 15 May 2020
Location: Worcestershire
Posts: 51
  
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| Changing belts - oil pump and other advice |
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Hi, apologies for the new topic as I know this is covered in many posts, but I am struggling to find a definitive answer for my model year.
I have an 06/6A VIN with 135K miles and I do not know what state the belts are in, so they are next on my todo list.
AF do a nice kit of for the cam and fuel pump belts and tensioner, so I was going to order that, but have a few questions.
1. I believe 06/6A should be the good oil pump design, but should it be changed regardless of design or is it sufficient to just double check its the correct design when I get everything open?
2. Might as well do the aux belt at the same time. Do I need to order any tensioners/bolts as well?
3. I have seen mention of changing the water pump since everything is off, its a fairly cheap part, but is this prone to failure/worth doing?
Thanks in advance
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 4th Aug 2020 7:16 am |
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Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815
 
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1. No it has not! Maybe some previous owner changed it.. but from factory buildt the my06 does not have the reinforced pump...
2. Always order and mount Complete kits,! Incl rollers and tensioners.. (fuel pump, cambelt and auxiliary belts, although the last is sold separately)
3. Yes, do it.... if it seizes, it wil ruin the rest there and big chance your engine in the end..
Do not buy brandless cheap stuff
Dayco for the belt kits... fomoco for the pump and OEM or SKF for the waterpump..
Also new bolts for the tensioners (all of them) check also the bearings from the tensioners (All of them!) and if suspect buy new tensioners Best regards
Harold
Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. 
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| 4th Aug 2020 7:53 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10504
 
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Motolab - is dead right. 
AF will look after you.
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 4th Aug 2020 8:21 am |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6235
 
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Change the water pump at the same time, its only a 5 min job when doing the front belt.
Flack
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| 4th Aug 2020 9:39 am |
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ph1ll
Member Since: 15 May 2020
Location: Worcestershire
Posts: 51
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Cheers for the advice - its a bit frustrating that you can't really tell which pump you have until you are halfway through the belts. I think I will go for the approach of ordering everything, and best case if the oil pump is the right design and looks new(ish) I should be able to return the parts I don't use.
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| 4th Aug 2020 10:14 am |
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Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815
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best guess.... the old pump is still there ... if some-one did the effort to replace it, he/she would have mentioned it somewere service books/invoice/etc.. because that is a "asset" and sells a motor better to people who know...
after 33 years in the engine trade: if some one say it is done, i still check it myself, if and how they done such things and if there is no mention of it, it is almost never done (but sometimes you are or can be lucky)
same with cam belts, etc.. i ALWAYS change them, seen to many short cuts etc. ( no new rollers, no new bolts, no new tensioners, etc.. even from reputable workshops.... you never know what the customer demanded (just before selling it etc.) even seen logbooks with (added) info regarding belts and pumps etc.. but when calling the workshop who signed it, there was no mention of it in their logs/invoices...
so a (afterwards) modified log.... Best regards
Harold
Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc.
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| 4th Aug 2020 10:32 am |
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pwheeldon
Member Since: 15 Jan 2020
Location: West Yorks
Posts: 1449
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Are there any D3s that had a good pump fitted from new? I was under tge impression they were all the same. Discovery 4 GS 2009 Auto Stornoway Grey
Discovery 3 s 2005 Auto Bonatti Grey Gone
Discovery 3 SE 2005 Manual Zambezi Silver Gone
Range Rover Sport HSE 2006 Black
Aston Martin DB7 VV
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| 4th Aug 2020 10:38 am |
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darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
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My 09 HSE D3 has the sorted version fitted from the factory Must stop buying shiny toys....
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| 4th Aug 2020 10:40 am |
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ph1ll
Member Since: 15 May 2020
Location: Worcestershire
Posts: 51
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Motolab - that's the exact approach I was going to take with the belts, for the effort of getting to them to check them properly, they may as well be changed so that they are known to be good.
What is the oil loss like when changing the pump? - from the instructions it doesn't seem like it will be significant, but I have new oil and filter ready waiting to go in - so it is an option for me to drain the oil before tackling the pump.
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| 4th Aug 2020 11:06 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10368
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there is zero oil loss.
Oil change is only really required if you drop rubbish into the sump.
In some respects leaving the old filter in and fully primed with oil maybe a benefit when first starting with the new pump.
P.S Water pump is driven from the auxiliary belt
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| 4th Aug 2020 12:20 pm |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
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[quote="pwheeldon"]Are there any D3s that had a good pump fitted from new? I was under tge impression they were all the same.[/quote
Fitted from late 2008 but some Discoverys sat around in dealerships before being registered so the only way to tell is to look, if in doubt change it anyway a new pump should give you better oil pressure anyway
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| 4th Aug 2020 6:34 pm |
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