Users browsing this forum: 63 Guest(s)

The XUD and DW8 Engines
The XUD is the 1905cc indirect injection diesel engine as fitted to the 93-97 Ph1 & Ph2 diesel 306s, it comes in both turbo and non turbo variants. The non turbo XUD9A produced between 67-71hp depending on year. The turbo model makes 92hp as standard, but was derated to 90hp from 1997 onwards. It is a very popular engine across many older PSA cars and very popular to tune with its fully mechanical Bosch axial or Lucas rotary injection pumps. They are also renown for there reliability and being easy to fix / work on. The later models also featured a catalytic converter in the exhaust along with EGR for emissions.

DW8
The DW8 is essentially a derivative of the older XUD9 design, an 1868cc engine it is considered a 1.9 litre, although may sometimes be shown as a 1.8 litre to distinguish from the XUD7 and XUD9. It is fitted to 1999> Ph3 Diesel 306s along with many other cars and light commercial vans, namely the Peugeot Partner and Citroen Berlingo. The name would suggest it is part of the DW line of engines that replaced the ageing XUD, although it has more in common with the XUD with it's mechanical rotary Delphi/Lucas pump which is near identical in operation to that of the XUD, it shares more in common with the XUD9 than the DW10/12 engine. The engine does have an "ECU" of sorts, although this computer is purely for it's complex EGR emmissions systems and anti-theft systems, however underneath all of this lurks a very familiar mechanical Indirect Injection engine which is incredibly reliable due to it being based upon 25 years of design and refinement and being reasonably low stress. The engine is rated at 69-72hp, again dependent on year.

XUD Section
Thread / Author Replies Views [asc] Rating Last Post
Forum Announcements
    Forum changing to Read-Only - Stage 1 - - - 02-09-2021, 09:30 PM
    306oc Facebook Group - - - 09-08-2021, 10:15 AM
Normal Threads
    5 1,850
  • 0 Vote(s) - 0 out of 5 in Average
18-07-2012, 07:27 AM
Last Post: CJ_Derv
   
Go to first unread post Cooling Fans
c.gerrard, 20-09-2012, 06:36 PM
9 1,850
  • 0 Vote(s) - 0 out of 5 in Average
23-09-2012, 10:43 PM
Last Post: Kwik
   
Go to first unread post Hitting High EGT to easy?
JamesPT, 15-12-2014, 03:04 PM
4 1,848
  • 0 Vote(s) - 0 out of 5 in Average
15-12-2014, 04:35 PM
Last Post: Ruan
   
Go to first unread post Who doesn't love a good deal.
Toby, 24-04-2012, 08:21 PM
8 1,847
  • 0 Vote(s) - 0 out of 5 in Average
25-04-2012, 06:13 PM
Last Post: kingy
   
Go to first unread post Hdi gearbox
bashbarnard, 25-06-2014, 06:45 PM
14 1,845
  • 0 Vote(s) - 0 out of 5 in Average
03-07-2014, 09:36 AM
Last Post: bashbarnard
   
Go to first unread post question about lucas pump
bayley, 26-10-2012, 05:56 PM
7 1,844
  • 0 Vote(s) - 0 out of 5 in Average
29-10-2012, 05:16 PM
Last Post: bayley
   
Go to first unread post oil drain options
zx_volcane, 06-03-2014, 08:54 PM
6 1,842
  • 0 Vote(s) - 0 out of 5 in Average
09-03-2014, 09:03 AM
Last Post: darrenjlobb
   
Go to first unread post XU gearboxes
ginge191, 06-06-2012, 09:34 PM
6 1,841
  • 0 Vote(s) - 0 out of 5 in Average
06-06-2012, 11:49 PM
Last Post: ginge191
    4 1,841
  • 0 Vote(s) - 0 out of 5 in Average
09-07-2012, 03:07 PM
Last Post: HDIkyle
   
Go to first unread post What's the best tuning
Cbray2003, 31-01-2013, 03:46 PM
6 1,834
  • 0 Vote(s) - 0 out of 5 in Average
01-02-2013, 09:02 AM
Last Post: Tom
    5 1,831
  • 0 Vote(s) - 0 out of 5 in Average
01-07-2015, 02:34 PM
Last Post: assembled
   
Go to first unread post bosch pump leak
dec-66, 12-11-2013, 05:05 PM
7 1,827
  • 0 Vote(s) - 0 out of 5 in Average
13-11-2013, 01:18 AM
Last Post: dec-66
  Tongue
Go to first unread post tdo4 on xud
mrmoates, 18-09-2017, 01:38 PM
2 1,826
  • 0 Vote(s) - 0 out of 5 in Average
18-09-2017, 11:25 PM
Last Post: Dave
    4 1,825
  • 0 Vote(s) - 0 out of 5 in Average
10-05-2014, 10:21 AM
Last Post: D Turbo Lyle
   
Go to first unread post Cambelt kit
Xud Missile, 13-11-2012, 11:45 AM
6 1,823
  • 0 Vote(s) - 0 out of 5 in Average
13-11-2012, 09:43 PM
Last Post: RePT
   
Go to first unread post Timing belt jumped.
simonson1982, 30-01-2016, 01:47 PM
3 1,823
  • 0 Vote(s) - 0 out of 5 in Average
30-01-2016, 07:20 PM
Last Post: ash23
   
Go to first unread post bosch tweaking
bobmaf, 16-07-2012, 03:48 PM
6 1,822
  • 0 Vote(s) - 0 out of 5 in Average
16-07-2012, 04:19 PM
Last Post: mark_airey
   
Go to first unread post Blown turbo? Maybe?
LewisG306, 03-02-2014, 11:17 PM
8 1,822
  • 0 Vote(s) - 0 out of 5 in Average
05-02-2014, 04:03 PM
Last Post: Teddy
   
Go to first unread post Help Please got a leak :(
CJ_Derv, 22-04-2012, 07:25 PM
11 1,820
  • 0 Vote(s) - 0 out of 5 in Average
25-04-2012, 11:10 AM
Last Post: CJ_Derv
   
Go to first unread post the Engine hdi to xud
Exoforces, 13-01-2013, 06:03 PM
10 1,820
  • 0 Vote(s) - 0 out of 5 in Average
17-01-2013, 10:12 AM
Last Post: johnnytsa
   
Go to first unread post Fuel filter for 10mm lines
bashbarnard, 01-05-2015, 05:43 PM
5 1,820
  • 0 Vote(s) - 0 out of 5 in Average
12-05-2015, 10:59 AM
Last Post: maxlee
   
Go to first unread post Tractor
DragonRacer, 16-07-2013, 08:41 AM
7 1,819
  • 0 Vote(s) - 0 out of 5 in Average
16-07-2013, 06:11 PM
Last Post: Ruan
   
Go to first unread post XUD9TE with A/T ??
celesboy1, 28-12-2018, 10:32 AM
3 1,819
  • 0 Vote(s) - 0 out of 5 in Average
29-12-2018, 08:57 PM
Last Post: jamie182
   
Go to first unread post fuel cut off solenoid
dadaddy35, 29-03-2014, 09:57 AM
4 1,818
  • 0 Vote(s) - 0 out of 5 in Average
30-03-2014, 06:34 PM
Last Post: dadaddy35
   
Go to first unread post Cleaning xud injectors.
bashbarnard, 27-02-2015, 03:30 PM
6 1,818
  • 0 Vote(s) - 0 out of 5 in Average
28-02-2015, 07:46 PM
Last Post: pioneer DJ paddy


  New Posts
  Hot Thread (New)
  Hot Thread (No New)
  No New Posts
  Contains Posts by You
  Closed Thread

Search this Forum:

Forum Jump: