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compression test results, sort of

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Old Feb 19, 2012 | 06:59 PM
  #21  
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this was all dry, no oil added. that was all I had time for before my help (wife lol) lost interest
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Old Feb 19, 2012 | 07:03 PM
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You only did half the testing.
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Old Feb 19, 2012 | 07:09 PM
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yeah I'll have to do the wet some other time, hopefully it warms up a bit this week so I don't have to do it in the cold
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Old Feb 19, 2012 | 07:13 PM
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My air conditioner is on.
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Old Feb 19, 2012 | 07:15 PM
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heh gotta love ohio... gets down below 0 in the winter, above 100 in the summer
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Old Feb 19, 2012 | 07:50 PM
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does anyone know what compression readings I should be getting with this engine? 5.0L
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Old Feb 19, 2012 | 08:16 PM
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95-125 psi cranking pressure...

they are pretty steady and the high 90psi one I bet is the one using oil...

also use a vacuum gauge and watch the needle... steady needle is fine...erratic is bad..using it while the engine is running...

Looking at it, it looks as though the engine is just tired or all the rings are stuck
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Old Feb 19, 2012 | 09:35 PM
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do I just hook the vacuum gauge up to the vacuum tree anywhere? or a certain place?

I will post wet test results as soon as I have them

you don't think I should be suspicious of cylinders 1-2?
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Old Feb 28, 2012 | 02:29 PM
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I got a call today from the oil analysis folks with some unexpected results. turns out there is little to no coolant in the oil, so for the time being the head gasket appears fine. Chrome (related to ring wear) is not elevated, so the rings are not wearing excessively. That doesn't mean they aren't worn, they just aren't getting MORE worn currently. Bearing wear metals were greatly elevated though also silicon was greatly elevated, which led them to suggest checking the air intake for leaks. I will know more when I receive the actual report, hopefully later today
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Old Feb 28, 2012 | 06:14 PM
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