power loss
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power loss
HI can anybody offer advice My t25 loses power a quarter the way through the acceleration distance what should a look at first fuel supply or coil or what else any suggestions would be greatfuly recieved thanks in advance..
- kevtherev
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Re: power loss
My crystal ball is on the blink.
could you enlighten us as to what engine this is?
DF DJ GW or DG
could you enlighten us as to what engine this is?
DF DJ GW or DG
does this mean, like a flat spot?quarter the way through the acceleration distance
AGG 2.0L 8V. (Golf GTi MkIII)
Re: power loss
is the timing correct? 

1984 T25 1.9 watercooled petrol, DG, pierburg, 4 speed, transporter
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Re: power loss
Yes that is what it seem likekevtherev wrote:My crystal ball is on the blink.
could you enlighten us as to what engine this is?
DF DJ GW or DG
does this mean, like a flat spot?quarter the way through the acceleration distance
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Re: power loss
It is a DG enginekevtherev wrote:My crystal ball is on the blink.
could you enlighten us as to what engine this is?
DF DJ GW or DG
does this mean, like a flat spot?quarter the way through the acceleration distance
- daysofthunder
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Re: power loss
I am currently having the same issue with my 1.9 dg engine , its almost like it pulls low down in first followed by a slight pause then lift off
I`m currently re building my carb and replacing filters ect
I have been down the new coil leads rotor arm avenue
Il let you know how I get on
I`m currently re building my carb and replacing filters ect
I have been down the new coil leads rotor arm avenue
Il let you know how I get on
VW Transporter T25 Leisure Drive 1.9 Petrol 1985
DG0925**
1915cc
Audi A4 Avant 1.9TDI Sport B6
DG0925**
1915cc
Audi A4 Avant 1.9TDI Sport B6
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Re: power loss
I had this exact issue and it was the exhaust. Replaced all the manifolds and all fixed!!
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Re: power loss
Deffo check the coil! Had the same problem with mine today after being stuck in heavy traffic. Total flat spot half throttle, picked up with no throttle and then would only get power again on full throttle?! Pulled over and the coil felt hotter than the sun! I also noticed that the metal connections to the 'positive' on the coil were all green so cleaned them up with a little wire brush & swapped back to my old bosch coil & the van is running sweet again. Note that the hot coil was not even a year old, but it was not a bosch so I would recommend you get a decent one.
Alternatively, check the vacuum advance is working as it should.
Let us know how you get on & if you resolve it.
Alternatively, check the vacuum advance is working as it should.
Let us know how you get on & if you resolve it.

'86 DG, Weber Carb
- daysofthunder
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Re: power loss
Poor running flat spot and poor starting was my issue i tried everything
What worked for me was stripping down the carb and ultrasonic cleaning it using new gaskets and drives and idles like new
Starts on the button revs smooth and pulls off from stationary without a bit of a sputter
Might be worth trying this , if it doesnt work atleast it is something you can rule out and it wont need doing again for another 10 years at least if looked after

What worked for me was stripping down the carb and ultrasonic cleaning it using new gaskets and drives and idles like new
Starts on the button revs smooth and pulls off from stationary without a bit of a sputter
Might be worth trying this , if it doesnt work atleast it is something you can rule out and it wont need doing again for another 10 years at least if looked after

VW Transporter T25 Leisure Drive 1.9 Petrol 1985
DG0925**
1915cc
Audi A4 Avant 1.9TDI Sport B6
DG0925**
1915cc
Audi A4 Avant 1.9TDI Sport B6
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Re: power loss
Saw your other thread with the ultrasonic cleaning d.o.t, looks pretty smart. I gave my carb a damn good cleaning too prior to fitting to the new engine about 9 months ago, but just want to make sure all is well so going to take it to a chap called Aaron at ht racing at brands hatch in the next couple of weeks where I'm going to get him to give it a lookee over.
'86 DG, Weber Carb
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Re: power loss
thanksdaysofthunder wrote:I am currently having the same issue with my 1.9 dg engine , its almost like it pulls low down in first followed by a slight pause then lift off
I`m currently re building my carb and replacing filters ect
I have been down the new coil leads rotor arm avenue
Il let you know how I get on
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Re: power loss
"idiot"kevtherev wrote:My crystal ball is on the blink.
could you enlighten us as to what engine this is?
DF DJ GW or DG
does this mean, like a flat spot?quarter the way through the acceleration distance
]

- kevtherev
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Re: power loss
Flat spots are caused by many things... exhausts, timing and mixture.
It would be interesting to know what you have done with the advice given already.
What the blithering heck does that comment mean?
It would be interesting to know what you have done with the advice given already.
What the blithering heck does that comment mean?
AGG 2.0L 8V. (Golf GTi MkIII)