The TXD seems to have some sort of throttle damper on it - I recall my Pug 306 had something similar. However, I'm not sure it's working properly. If I release the throttle, it's very slow to drop the revs. In neutral, the revs eventually settle at about 1100rpm, then slowly drop to just below 1000rpm - where it should be.
Is this working 'as designed' or does something need lubing?
Throttle damper
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Re: Throttle damper
Adjustable - yes but method depends on make of pump.
1974 GS Birotor, 1972 GS 1220 FIA Gp 2, 1992 BX 16 TGS, 1951 Velo-Solex, 1953 NSU Max 250, 1972 Honda ST50, Daughter has 1990 BX14 TGE
Previously owned include 1983 BX14RE Leader, Porsche 924, 1972 Porsche 911T, 1973 Porsche Carrera RS 2.7 (FIA Group 4), 1974 Porsche Carrera RS 3.0 (FIA Group 4 ex Le Mans), 1969 911 T/R (FIA Group 3 ex Le Mans), 1981 Porsche Group B 3.3 litre World Endurance Championship, 1991 Footwork Arrows Porsche Formula 1 (ex Alboreto & Caffi),
Previously owned include 1983 BX14RE Leader, Porsche 924, 1972 Porsche 911T, 1973 Porsche Carrera RS 2.7 (FIA Group 4), 1974 Porsche Carrera RS 3.0 (FIA Group 4 ex Le Mans), 1969 911 T/R (FIA Group 3 ex Le Mans), 1981 Porsche Group B 3.3 litre World Endurance Championship, 1991 Footwork Arrows Porsche Formula 1 (ex Alboreto & Caffi),
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Re: Throttle damper
i have always just removed these when they fail, i dont think there is much you can do with them as they are usually like a miniature shock absorber,
regards malcolm
regards malcolm
curent ride
K reg BX 17TD TZD est
also own
K reg D special
no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
K reg BX 17TD TZD est
also own
K reg D special
no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
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Re: Throttle damper
Sounds simple enough. Not sure why they fitted one in the first place. To try and make it smoother for shabby drivers or to try and maintain turbo boost by not entirely shutting off the fuel?
Re: Throttle damper
apparently it meant to bring the throttle to rest slower, something to do with emission control
regards malcolm
regards malcolm
curent ride
K reg BX 17TD TZD est
also own
K reg D special
no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
K reg BX 17TD TZD est
also own
K reg D special
no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
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Re: Throttle damper
Ah, that'd make sense. My petrol Bluebird has something similar. Thinking about it, I guess it's to try and minimise unburnt fuel. It's un-nerving though as you don't get instant engine braking!
- mat_fenwick
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Re: Throttle damper
I thought it was more to do with stall prevention, but I could be wrong. I can't see exactly how it affects emissions though?
BTW, your pump is the Lucas by the looks of things.
BTW, your pump is the Lucas by the looks of things.
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Re: Throttle damper
My guess is that a quick shut-off of the throttle causes some fuel to be unburnt, or not completely burnt. A gradual close keeps the fires burning a bit. Probably.mat_fenwick wrote:I thought it was more to do with stall prevention, but I could be wrong. I can't see exactly how it affects emissions though?
Really? Oh well. Can't say I've looked too closely yet. I was offered a Bosch spare - glad I declined it now!mat_fenwick wrote: BTW, your pump is the Lucas by the looks of things.