Simon_CSK Posted March 14, 2021 Share Posted March 14, 2021 Can anyone tell me the difference between a P10 engine and a P15 engine and how other than the engine number can one determine which engine I have? I have a good running engine I have taken from a salvage vehicle and is currently in my D2 that I am now breaking up. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 14, 2021 Share Posted March 14, 2021 I think the easiest way is that the p15 has a water cooled EGR system. So if there is a cooling ‘tank’ at the front of the engine in the EGR circuit it’s a 15. Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted March 14, 2021 Author Share Posted March 14, 2021 23 minutes ago, Anderzander said: I think the easiest way is that the p15 has a water cooled EGR system. So if there is a cooling ‘tank’ at the front of the engine in the EGR circuit it’s a 15. Anderzander Thanks for your reply however the engine was stripped of some of the ancliiaries when it was fitted to the earlier car, but from memory there was no EGR system on either. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 14, 2021 Share Posted March 14, 2021 Ok - fuel pressure regulator- 2 pipes is a 10p 3 for a 15 ? Quote Link to comment Share on other sites More sharing options...
dave88sw Posted March 14, 2021 Share Posted March 14, 2021 If the fuel pressure regulator has an extra pipe that goes forward along the side of the head behind the inlet manifold to a fitting screwed in at the front of the head, right behind the sprung loaded timing chain tensioner, it is a 15p. If it only has 2 pipes attached to it, it's a 10p engine. Land Rover made the fuel return external on the later engines, rather than an internal channel in an attempt to stop the head cracking and filling the sump with diesel (although it wasn't a complete cure). 2 Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted March 14, 2021 Author Share Posted March 14, 2021 Is there any differences within the block or are the two blocks basically the same? Quote Link to comment Share on other sites More sharing options...
reb78 Posted March 15, 2021 Share Posted March 15, 2021 Is it not possible to tell from the engine number? They all fall into certain ranges dont they? Quote Link to comment Share on other sites More sharing options...
dave88sw Posted March 15, 2021 Share Posted March 15, 2021 As far as i'm aware there were no differences in the block. Happy to be proven wrong though. Lots of little differences in the top end, injectors are different, fuel rail set up, egr cooler (really late ones had a square fuel cooler which was much better sealed than the earlier tube type) etc Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 15, 2021 Share Posted March 15, 2021 Yes, I think you are right. The same block part number seems to be listed from 99 - 06 Quote Link to comment Share on other sites More sharing options...
JohnnoK Posted March 15, 2021 Share Posted March 15, 2021 On 3/14/2021 at 8:39 PM, Simon_CSK said: Is there any differences within the block or are the two blocks basically the same? As far as I understand it, the blocks are the same. Quote Link to comment Share on other sites More sharing options...
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