What A:F ratio does engine start to run rough?
What A:F ratio does engine start to run rough?
(OP)
Greetings all,
I hear gas engines run rough when burning rich and run smooth but stall when burning lean. I was curious whether there is common knowledge on what gas engine A:F ratio (rich end) will rough engine running first become apparent... If you have an answer, are there any sources I should look at? I realize "rough" is not well defined. What would be the most common cause of rich burning forklift operation?
Any advice you could give is appreciated. Thanks, -CB
I hear gas engines run rough when burning rich and run smooth but stall when burning lean. I was curious whether there is common knowledge on what gas engine A:F ratio (rich end) will rough engine running first become apparent... If you have an answer, are there any sources I should look at? I realize "rough" is not well defined. What would be the most common cause of rich burning forklift operation?
Any advice you could give is appreciated. Thanks, -CB





RE: What A:F ratio does engine start to run rough?
Rod
RE: What A:F ratio does engine start to run rough?
Which gas are you refering to?
RE: What A:F ratio does engine start to run rough?
I have some experence with LPG systems fitted on gasoline engine. Is very important to know that aprox. 1,3-1,4 l of liquid gas are equivalent with 1 normal fuel litre. (according caloric power of each). One other very important factor is temperature of gas in expansion time via the vaporisator unit, the temperature of intake air and the shape of TB mixer and intake air duct. From my experience (with adjustable and eleqtronically busted LPG sistem) I agree one normal (engine hot) AFR around 11:1.
RE: What A:F ratio does engine start to run rough?
RE: What A:F ratio does engine start to run rough?
RE: What A:F ratio does engine start to run rough?