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Nick666



Member Since: 23 Mar 2016
Location: Somerset / Dorset borders!
Posts: 81

United Kingdom 1986 Defender 90 2.5 n/a Diesel SW Yellow
New style FPR when everything says it should be an old style
Am overhauling an FPR and noticed that even though the engine has a 10p serial number it's the 3-outlet type FPR attached, can anyone think why this Landy would have the later FPR fitted to a 10p engine? It's a 1999 vehicle from SVO. They didn't make the Euro3 version that early surely, so does it suggest part of the engine has been replaced with a later bit? (and how much would have to have been replaced)
Post #594978 21st Jan 2017 3:21pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554


Click image to enlarge



to use the later fpr you need 15P head as fuel retune on out side of the head
Post #595018 21st Jan 2017 5:13pm
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Nick666



Member Since: 23 Mar 2016
Location: Somerset / Dorset borders!
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United Kingdom 1986 Defender 90 2.5 n/a Diesel SW Yellow
Thanks Dorsetsmith, that's what I figured. So what components would they have had to swap out to do that? And could it have been bodged enough to "sort of" do the job, more importantly. Would like to be sure it hadn't been messed up, if there's something that can be checked! Presumably the green top injectors would be needed, but if they'd not replaced the black tops would it still run?
Post #595038 21st Jan 2017 6:08pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
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Euro3 engine have EGR cooler fitted to the front head not shore about injector but will have been match to ECU
Post #595047 21st Jan 2017 6:30pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
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injector fond this below two colour blue and green main this is injection presser pre and post Euro3


http://forum.landrovernet.com/showthread.p...jector-td5



blue top injector 1500 psi up to my A2 1998 to 2002

green top injector 1750 psi from A2 Euro 3 2002 to 2006

The 15p heads run a different injector cam profile to generate higher injector pressures so the early black top injectors don't have the plunger travel nor the injector body strength. They will physically fit but I don't recommend it. I have fitted later injectors to 10p heads with no issues as they are running well below their designed parameters.


Last edited by dorsetsmith on 22nd Jan 2017 10:14am. Edited 2 times in total
Post #595100 21st Jan 2017 9:02pm
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Nick666



Member Since: 23 Mar 2016
Location: Somerset / Dorset borders!
Posts: 81

United Kingdom 1986 Defender 90 2.5 n/a Diesel SW Yellow
Thanks Dover, I've read that too, not actually opened the head to see which injectors are in there yet (didn't realise there might be a need to until now!)... raises a few questions though:

1) CAN a 15p head be fitted with 10p injectors? What would be the symptoms if they were?

2) Also haven't checked which ECU type it is, can the earlier ones be reprogrammed for 15p injectors? Seem to recall that it can't be done... And if not, and the later 15p injectors ARE in there, what would that feel like? There aren't any errors coming up on the Lynx reader that might make it obvious...

3) If you fit a 15p head with the newer injectors, what else do you need to fit to get it to work like it should? And if the previous numpty hadn't done that, what would happen? Shocked

Sorry, when it comes to internals it's all alien to me!
Post #595130 21st Jan 2017 10:12pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
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The only other things I can think of is camshaft profile as part number LGC000320 to 1A and LGC000310 from 1A and ECU mapping

also

https://www.landyzone.co.uk/land-rover/upg...5p.273293/


You can not fit the 10p cam to a later 15p head as the cam carriers are deliberately different so they can not be mixed. Same with the injector rocker shaft.

You also can not fit the 10p cam carrier to the 15p head as the cam bearings in the head and carrier are machined together so the head and carrier are matched parts.

It is for this reason refurbished heads come with the carrier and often the cam. Thats the drawback with modern high tolerance engines - parts are not simply interchangeable.


Last edited by dorsetsmith on 22nd Jan 2017 10:15am. Edited 1 time in total
Post #595205 22nd Jan 2017 8:26am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
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United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
I think green top injectors need individually coding to the ecu where as black tops don't? I'm sure I read that somewhere. I think they're physically the same shape though Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
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Post #595224 22nd Jan 2017 9:37am
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

also have read of this below Exclamation

In regards to green top and black/blue top injectors, they are different in more ways than 1. first- they do run higher pressure, second- they are actually at a different angle (hence the newer design head) third- they are slightly longer than black tops.
With this in mind they should not be swapped and cannot be programmed to the ecu.
I have seen one particular case where black tops were fitted to green top engine and performance was reduced 60% started and ran but no good.
If your 10p engine has green tops i'd say the head, injectors, the throttle pedal must have been swapped as this can be done at an expence.
Dunno if that helps but i am new to this.


https://www.aulro.com/afvb/technical-chatt...ctors.html


Last edited by dorsetsmith on 22nd Jan 2017 10:16am. Edited 1 time in total
Post #595231 22nd Jan 2017 9:48am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Good to know, it was a long time ago that I read that so I would have thought that by now someone would have tried it - seems they have Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #595234 22nd Jan 2017 9:56am
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

This information is from another forum but have read your early posts on low power Exclamation and that your head is now 15P instead 10p and you and have blue top injector fitted to it Exclamation
Post #595240 22nd Jan 2017 10:22am
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