The XUD9TE engine and its power characteristics
Moderator: RichardW
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My Dad had a new ZX TD in 1993 and it went like hell! I had a BX DTR Turbo at the same time and it was just as fast. I remember in my younger (foolish) days it would do an indicated 112 with four people on board! Converted a few of my mates to diesel too!
An outstanding car for its time the BX.
An outstanding car for its time the BX.
2000 XANTIA HDi 110 SX Est
1992 205 GTI TD
1996 DISCOVERY TDI
2001 XANTIA HDi LX
1991 205 D Turbo
1992 205 GTI TD
1996 DISCOVERY TDI
2001 XANTIA HDi LX
1991 205 D Turbo
This new thread has had me playing with the pump settings too. I have positioned the diaphragm plunger so that the pin (inside) moves the most. I removed the nylon spacer. The star wheel was moved about an eighth of a turn clockwise to lessen the spring strength and ensure the boost pressure moves the diaphragm fully - especially now it can move further. The top screw is about 3 turns up from its original position.
I had tweaked the pump some time ago but not properly. I was fairly happy with the results then - but now it’s far better! Yipee!!
I don’t have excessive smoke at the moment but I would like to screw in the top screw a bit to assist off boost pickup. This is bound to produce more smoke and I guess I’ll have to reduce this by moving the star-wheel to increase the boost spring pressure.
It’s a slow process, making changes and road testing and then doing it again! Can anyone think of a way to check if the boost pressure fully lowers the diaphragm plunger?
I had tweaked the pump some time ago but not properly. I was fairly happy with the results then - but now it’s far better! Yipee!!
I don’t have excessive smoke at the moment but I would like to screw in the top screw a bit to assist off boost pickup. This is bound to produce more smoke and I guess I’ll have to reduce this by moving the star-wheel to increase the boost spring pressure.
It’s a slow process, making changes and road testing and then doing it again! Can anyone think of a way to check if the boost pressure fully lowers the diaphragm plunger?
Pug Rifter long (20) - 41mpg - Gutsy for a 1.5!
Xantia 1.9 TD Temp.2 Break (97) - 208K@42mpg - Resting again.
Berlingo Multispace 1.6 16v (51) - 184K@36mpg - My shed! Still runs 15° retarded...
Xantia 1.9 TD Temp.2 Break (97) - 208K@42mpg - Resting again.
Berlingo Multispace 1.6 16v (51) - 184K@36mpg - My shed! Still runs 15° retarded...
- mooseshaver
- Posts: 886
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- Location: Cumbria
- My Cars:
[quote="MikeT"]I downloaded a 3GP player but it wouldn't play those videos.
quote]
Quicktime plays them. www.quicktime.com
quote]
Quicktime plays them. www.quicktime.com
C5 III Tourer 2.0 HDi 163 Auto Exclusive
Gone cars.
C5 2.2 HDi Exclusive Estate auto 57. Awesome car. Sadly Could not be fixed by Citroen.
C5 1.6 HDi VTR Estate 56. Traded in.
C5 2.2 HDi SX Estate 02. Drowned in the floods of 09.
C3 1.4 HDi 92 SX 52.
Saxo 1.1 East Coast.
Gone cars.
C5 2.2 HDi Exclusive Estate auto 57. Awesome car. Sadly Could not be fixed by Citroen.
C5 1.6 HDi VTR Estate 56. Traded in.
C5 2.2 HDi SX Estate 02. Drowned in the floods of 09.
C3 1.4 HDi 92 SX 52.
Saxo 1.1 East Coast.
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- Joined: 11 Jun 2007, 16:17
- Location: Christchurch, Dorset. UK
- My Cars: 2005 C5restyle 1.6HDI 16v 110hp VTR Estate
2008 C5 X7 1.6HDI VTR+ Saloon - x 231
davek-uk: I'm not sure removing the plastic washer is a good thing as I assume it's a stop for the plunger. Without it, the full boost pressure is resisted only by the spring and the strength of the rubber diaphragm. Will that allow the plunger to lower too far? Perhaps damaging the fuelling pin or stretching the diaphragm? Better suggestion I read was to measure from pin top mark to top of eccentric cone and skim off only that amount from the plastic washer.
mooseshaver: I hate quicktime with a vengeance, it won't fully uninstall, leaving that annoying tray icon on every startup - I'll give it a miss thanks.
mooseshaver: I hate quicktime with a vengeance, it won't fully uninstall, leaving that annoying tray icon on every startup - I'll give it a miss thanks.
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- Posts: 69
- Joined: 26 Sep 2005, 02:14
- Location: United Kingdom
- My Cars:
Don't think I can do anything to my pump on my xantia as it's a 97 model with ECU control over fuelling etc with a cat. I've removed the cat,disabled the EGR and removed both throttle dampers from the pump and its made it an awful lot better and more responsive but I think that's all I can do to it?
My old 405 had a torx headed bolt visible on the top of the pump with a nut,the xantia has a cover over that bit! Boo Hoo!!
Can anyone advise..?
Cheers, Jon.
My old 405 had a torx headed bolt visible on the top of the pump with a nut,the xantia has a cover over that bit! Boo Hoo!!
Can anyone advise..?
Cheers, Jon.
2000 XANTIA HDi 110 SX Est
1992 205 GTI TD
1996 DISCOVERY TDI
2001 XANTIA HDi LX
1991 205 D Turbo
1992 205 GTI TD
1996 DISCOVERY TDI
2001 XANTIA HDi LX
1991 205 D Turbo
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- Posts: 4809
- Joined: 11 Jun 2007, 16:17
- Location: Christchurch, Dorset. UK
- My Cars: 2005 C5restyle 1.6HDI 16v 110hp VTR Estate
2008 C5 X7 1.6HDI VTR+ Saloon - x 231
Mine's a '98 with cat' (still fitted), EGR (disabled) and ECU controlled (timing & cold-start only I think) but still it (Bosch pump) can be tweaked and modded.
Using a thin screwdriver or two, you can gently lever up the torx screw cover for access. Search the forum for tuning and you'll find more info.
Using a thin screwdriver or two, you can gently lever up the torx screw cover for access. Search the forum for tuning and you'll find more info.
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- Joined: 26 Sep 2005, 02:14
- Location: United Kingdom
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Yeah it comes out with a screwdriver and a bit of hammering, you wont need to do much adjustment to this part though as most of the gains are made underneath.
2003 Ford Mondeo ST220
2002 Ford Fiesta Zetec S
2001 Ford Puma 1.7 VCT
2008 Ford Transit Mk7
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2002 Ford Fiesta Zetec S
2001 Ford Puma 1.7 VCT
2008 Ford Transit Mk7
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