I'm pleased to say my van passed MOT emissions yesterday but I would be interested to know if the results tell me anything.
The engine is 1987 1.9 DG petrol WBX
Readings:
HC 97ppm vol
CO 0.71 % vol The specification in my handbook stated 1.5% +/-0.5%
Any comments much appreciated
Exhaust Emission Test Results
Moderators: User administrators, Moderators
-
- Registered user
- Posts: 162
- Joined: 14 Feb 2012, 19:17
- 80-90 Mem No: 10711
- Location: Ryde, Isle of Wight
Exhaust Emission Test Results
1987 DG 1900 petrol plus Yamaha Midnight Star and Yamaha Virago and !979 Vespa P125X
- 937carrera
- Registered user
- Posts: 3599
- Joined: 05 Apr 2015, 19:29
- 80-90 Mem No: 16333
- Location: N Yorks.
Re: Exhaust Emission Test Results
I would say that looks pretty good, though perhaps a fraction weak at idle. Did you get any readings for "fast idle" ?
It's more important for the mixture to be right throughout the range and particularly under acceleration.
It's more important for the mixture to be right throughout the range and particularly under acceleration.
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
-
- Registered user
- Posts: 162
- Joined: 14 Feb 2012, 19:17
- 80-90 Mem No: 10711
- Location: Ryde, Isle of Wight
Re: Exhaust Emission Test Results
Thanks 937,
They didn't give any Idle Speed when the readings were taken.
The acceleration and performance uphill isn't that brilliant since I had carb refurbish recently so perhaps need slight adjustment to richen the mixture
They didn't give any Idle Speed when the readings were taken.
The acceleration and performance uphill isn't that brilliant since I had carb refurbish recently so perhaps need slight adjustment to richen the mixture
1987 DG 1900 petrol plus Yamaha Midnight Star and Yamaha Virago and !979 Vespa P125X