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[quote][i]Originally posted by nibnob21[/i] Got around to doing the timing mod today :) Popped round to the guy that I bought the car off in Ashby as he has a timing gun. There's a small dial by the bottom pulley that tells you the timing with reference to degrees before Top Dead Centre. We made the marks more visible with a white paint pen. The far right (T) is TDC then every marked notch to the left is 2 degrees advanced timing. The normal setting for the car is 10 deg. Due to the better fuel quality in the UK (95 RON as standard as opposed to 87 RON in the US) the engine can cope with advancing the timing further without the risk of knocking. [IMG]http://i57.photobucket.com/albums/g230/nibnob21/Eunos%20Roadster/0365.jpg[/IMG] First job was to check the current timing. There's a small notch in the bottom pulley that we marked up with the paint pen to make it easy to see with the timing gun (you can see this on the left of the pulley in the pic above). So by hand we turned the pulley until the notch lined up with the T on the dial. We removed plug 1 and put a long screw driver in the hole so it rested on top of the piston. Then by turning the pulley each way we determined the piston was at the top position (screw driver bobs up and down). All was good with everything lining up as it should. With the spark plug put back in and the engine running we shone the timing gun on the bottom pulley and we could see the marked notch on the pulley was flashing up against the 10 deg mark, as we expected it to be. So now we slackened off the cam angle sensor and adjusted it until the notch then flashed up against the 14 deg mark. We tightened up the cam angle sensor bolt and that's basically job done. Only thing left to do is to adjust the idle control screw to ensure that the natural idle matches the ecu setting. You should just about be able to see the screw in the pic below, you just turn it clockwise or anticlockwise to adjust the idle revs. By bridging a connection on the diagnostics port it's possible to turn the ecu off, allowing you to adjust the idle control screw until the engine sounds the same whether the ecu connection is bridged or not. [IMG]http://i57.photobucket.com/albums/g230/nibnob21/Eunos%20Roadster/0366.jpg[/IMG] The overall result? The car is more responsive and has a bit more low down torque. It definitely feels 'perkier' and it doesn't feel as strained when going up hills. Very happy considering it's so simple and free to do :) [/quote]
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