That looks to be the same as I have. I think you wind it in for more boost (compressing the ball and spring.
That restrictor is a Q4 part which has was connected with the original pier-burg.
Where in Surrey are you?
That looks to be the same as I have. I think you wind it in for more boost (compressing the ball and spring.
That restrictor is a Q4 part which has was connected with the original pier-burg.
Where in Surrey are you?
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
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