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Date registered: Oct 2002
Vehicle: 1967 250 SL, 1963 220Sb
Location: Los Angeles / Altadena
Mentioned: 3 Post(s)
Quoted: 134 Post(s)
1968 280 S smog pump removal - PROBLEM
I am putting the engine from a 1968 280 S M130 into a 1967 250 S body. I would like to remove the smog pump and cap everything off. I was in the process of doing just that yesterday (engine is out of the car at present) and made an unpleasant discovery. The smog pump pivots and serves to act as one of the belt tensioners. I do not find a corresponding idler pulley and since this was running when I removed it from the 1968 280 S (I have since cut and removed the belts) I'm in a bit of a pickle.
It seems very much like I need to keep the smog pump to act as a belt tension adjustment.
When I have read the posts on smog pumps before, the concensus seems to be "just remove the belt". Well I can't see how that is going to work either given that the smog pump is the tensioner for the belt that also operates the PS pump.
Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...