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#1
08-11-09, 05:57
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We have emission testing in this province, even for vintage vehicles. When I took my Dodge M152 (flathead Chrysler 6 cylinder) through the first time it failed. I didn't really expect it to pass but I wanted a baseline. After a valve cleaning and new head gasket it passed with about 30% of the maximum allowable emissions.
The idle test results were 314 out of 972 ppm for hydrocarbons and 2.26% for CO with a maximum allowed of 4.90%. NOx was never measured. 
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#2
08-11-09, 11:45
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thanks guys.
Hi, Thanks Guys for the replies, here In the UK, I understand there is an upper limit of 4.5% CO for this vintage of vehicle, however as a track laying vehicle and because of its age there is no requirement to pass an MOT. I will tweek those mixture screws in a little and aim for about 4.0% CO in air keeping it 'on song'.
Many thanks Kevin.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008. 3" Mortar Universal Carrier 1943 registered 06/06/2009. 1941 Standard Mk1 stowage Carrier, Caunter camo. 1941 Standard Mk1 stowage Carrier, light stone. 10 cwt wartime mortar trailer. 1943 Mk2 Daimler Dingo. 1943 Willys MB. 1936 Vickers MG carrier No1 Mk1 CMM 985.
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