it has a little clutch chater off the line but nothing crazy
it has a little clutch chater off the line but nothing crazy
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ok i just told i did it wrong im going to do it agin tonight ....
when you do it i didnt know the throtle body had to be open woops...
so ill update it later
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ok i just did it again and every thing read fine except the #7 was 70 lbs off of the others
i was told to put a little oil in there and see what it reads then to see if it is the rings or the valves ..does this sound correct?
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BIG TIME !!!!!!!!!!Originally Posted by murdered_outgmc
2002 Tahoe 4.8 - soon to be turbo'd - SOLD
1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
2012 Raptor - 497rwhp at 10psi
If you aint breaking - you aint going fast enough
Sounds right. Was #7 lower than the rest? Common with piston or ring problems. You need a leak down test. The test requires a leak down tester and compressed air as well as regular hand tools. It will tell you where the compression loss is.
yea it was only #7 the others were only 10 to 15 lbs off ..thanks for the help and saying i did it wrong the first time. ill get it tested next week since i dont have one or know how to do a leak down test
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It's a tester that connects to shop air. It has a regulator to pull the pressure down to the 30-40 PSI range in most cases so the sensitive internals can accurately measure leakage percentage. You rotate the crankshaft to TDC compression stroke of the cylinder to be tested, lock the crankshaft in place, connect the air hose (similar to a compression hose), and install the leakage tester. It will tell you on the gauges the percentage of leak down (how much of the regulated air into the cylinder is escaping). If the percentage is too high, you have a leak. Then determining where the air is escaping you know what the problem is. Many times a stethoscope can be used to find where the air pressure is escaping.
Out the throttle body = intake valve or seat
Tail pipe = exhaust valve or seat
Radiator surge tank = head gasket, cracked block, cracked head
Oil filler, PCV system, crankcase vent = broken/cracked/melted piston or broken rings.
Make sense?
I bet you hurt the #7 piston or rings as we have been discussing #7 turbo piston failures lately.
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