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Vacuum Question?

85URK

By 85URK,
in Engines & Forced Induction

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85URK Grand Master

85URK

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Posted (edited)

hey guys, well i was given a turbosmart type III B.O.V. a while back off a mate who has taken it off his car, and he said to try it on my car to see if it worked good. anyway i didnt have the adapter for it , so i just never fitted it, but on the weekend my other mate gave me one off his old skyline that he had made up, so i fitted it up and took it for a spin, everything seems ok, except for 1 thing, on the stock indash boost gauge, where its says +7 / -7. The needle seems to be sitting just above the -7 on idle, now from what i can remember before i changed it, when it was on idle with the stock B.O.V, it sat right on the -7 at idle, why would this change???? any help on this matter, and what does it mean???

Edited by 85URK
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Guilt-Toy Grand Master

Guilt-Toy

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Posted
yeah, might have a little leak somewhere. il have a look when i get a chance. if it does have a vacuum leak, does this mean it will be running less boost then im guessing.

there is a difference between vaccume leak and boost leak =)

try tighten the spring on the BOV a bit more to make sure that it is not leaking.

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