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Original Message
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| RE: Doesn't matter whether disc or drum. |
| By Gerry Proctor - 03/09/2004 7:10:34 AM; IP 207.133.188.254 |
While 10 in/hg is hard to manage with a vacuum boost, it's not impossible.
Your system should be able to hold enough reserve vacuum to give you two or three power-assisted applications.
I suspect that you have a bad check valve but you should investigate the whole vacuum system.
If you have one of those vacuum pump diagnostic gauges (like a Mytivac), hood it up to the booster and pump it down. It should hold vacuum indefinetly. If it leaks down, you have a leak in the diaphram or the booster seals.
If the booster checks out, replace the check valve on the booster. You should also install a check valve from the manifold vacuum hose to the reserve cannister.
Your brakes are still going to suck if you don't have at least 14" hg in the reserve but as long as you can get to that much vacuum and have it hold, your brakes should work the way you want them to. |
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