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Vacuum gauge observations (960) 900

posted by  poolman on  Fri Feb 11 09:20 CST 2005
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last visit: Sun Dec 26 02:03 CST 2010
[RELATED]

Hey tjts1- I'm wondering if you are getting all the vacume thats available, the specs on these engines call for 20lbs on a good engine, When mine was down to 17 I got to wondering what was retarding my ignition, installed two new knock sensors and the vac jumped up to 19.5. I have checked with a couple of diff vac gauges and get the same readings. After I found my timing belt off on the intake cam, the vac jumped to 21, where it is now.
Also note that when the knock sensors start going bad they do not send a code to let you know.
When I check my vac readings I take them from the vacume block(for the want of a better word) that is located next to the intake. This block has a number of lines running from it and a couple of ports that are capped off. I have a line installed in one of the unused ports that I use when checking vac readings.
Good Luck
Poolman






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