Blue smoke on decel, Part 2, Compression and vacuum test results |
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Blue smoke on decel, Part 2, Compression and vacuum test results |
DNHunt |
Jun 24 2003, 10:21 PM
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#1
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
Engine at normal operating temperature
Compression #1 #2 #3 #4 110 100 100 100 Compression after 3cc's of 30 wt oil added to each cylinder #1 #2 #3 #4 110 102 110 110 Vacuum was steady at 16 in hg. Relatively new plugs look a little foul. It looks like all cylinders could be higher. However, this is a brand new compression gauge so I have no readings taken previously and I have no way to know if it reads high or low. From what's been explained to me it appears that 3 & 4 have some ring problems because the addition of oil improved the compression. I also suspect some valve guide problems but it wouldn't hurt my feelings if you guys told me I was way off base. So, wade in and tell me what you think. Dave |
cha914 |
Jun 24 2003, 10:41 PM
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#2
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MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
Those numbers are a little low, but all the numbers are within 10%, which is a good sign. Looks to me like you have a good motor with a little smoking problem...I'd say keep on driving it...but I will let the experts chime in whith what they think...
(IMG:style_emoticons/default/driving.gif) Tony |
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