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04-02-2003, 08:06 PM
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#14 |
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Registered Member
Join Date: Jan 2001
Location: Clayton, CA USA
Posts: 116
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This is a problem that I thought I fixed several months ago, but now seems to be back. My car has been running great for months until last week. I started to notice a rough idle and a bit of surging at low RPMs. I hooked up a vacuum gauge and found that I have a vacuum leak.
I'm pretty sure that it is the intake manifold again. To confirm this, I checked the compression to rule out a burnt valve. All cylinders are right around 155 lbs. The plugs look fine except for #8 which is a bit on the gray side. I checked the torque on the intake bolts and they are all fine. I think what I'm left with is the heads and intake are not fitting right. How can I confirm this? And, what can I do about it if this is the case?
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'68 convert, 5.0 GT-40 Crate motor, C-4, Tri-Y headers, 3.25 rear gears |
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