2 LITRE TYPE 4 EMISSIONS ISSUE

Der Fudgemeister · Post by **Der Fudgemeister** » Mon Aug 17, 2009 10:11 am

OK so this concerns my 912E BUT .........

Fudge still uses her factory BOSCH AFC Injection. Last year the MOT emmissions were 1.5% CO and 820ppm HC. This year they were 4.15%CO with 1120ppm HC

What gives? Could it be the oil as last year i used Morris's 30W SAE while this year its been Duckhams Classic 20/50. Timing, etc, etc are all ok.

All comments very much appreciated.

"I thank you" said in an Arthur Askey like manner

Nige · Post by **Nige** » Mon Aug 17, 2009 10:21 am

I'd be looking at the ignition side of things before contemplating an oil change. Was the engine fully up to temp, was it running on its warm up cycle, plug gaps, valve clearances, vac-line condition, etc.

Der Fudgemeister · Post by **Der Fudgemeister** » Mon Sep 07, 2009 12:16 pm

Eureka

I've replaced the 'ex Morris Marina' Intermotor coil and replaced the NGK BP7ES plugs with hotter BP6ES plugs and now Fudge has more get up n GO

And fuel economy has improved too as Fudge is now getting 300 miles on half a tankful {33mpg} too

*

*Crusing on motorways at 75mph otherwise 26.7mpg just tooling around.