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Sooty Si

Jts Won't Start

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Hi all,

 

been having trouble with my JTS after an overheat was narrowly averted (radiator leaked out). Since replacing it, the cooling system is fine but she runs rough, with only 1 of the 4 lambdas showing a signal and the air to fuel ratio going from normal 14.7 at first to over 24 and staying there! It feels slightly noisier and rougher with a slight vibration all the time, whether driving, coasting, standing still. Obviously not transmission related, just engine.

 

The temp sender reads as expected, and last weekend I had the rocker cover off, checked the timing with camblocks - spot on. The cam lobes are not worn and everything is spotless. Except that all four plugs were black with soot (dry not oily). Removed the intake pipe from the MAF to the throttle body and checked for air leaks - nothing found. All other pipes in the vicinity are fine too.

 

Although she was running fine and was as responsive as ever apart from the abovementioned vibration / slight rough feel, tried to start her today and nothing, cranks but won't start!

 

Getting fed up now as I've had to buy a runabout to use in the meantime - didn't want to drive the Alfa and cause any damage. Losing interest too and am thinking of selling / scrapping it as I can't afford 3 lambdas and a MAF etc. Before I do though, has anyone got any suggestions I can try?

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