Aug 12, 2019 · A good compression tester for small engines: Actron CP7828A Professional Compression Tester Kit with 10mm, 12mm, 14mm, 14mm Long Reach, and 18mm Adapters $45 or so

Jul 6, 2013 · How do you perform an accurate compression test on a saw ? I've searched and found all kinds of stuff but nothing clear to me. Warm, not warm, run first and allow to cool, room temp (WTF is …

Feb 1, 2011 · I've got 6 Stihl chainsaws from 009 to 036 and they all have about 80 to 100 p.s i. compression according to my testing. From reports I've been reading, and in ads, like e-bay ads, …

Jul 12, 2004 · I found this table to adjust for altitude when performing compression tests: Altitude Factor 1000 .9711 2000 .9428 3000 .9151 4000 .8881 5000 .8617 6000 .8359 7000 .8106 8000 .7860 It …

Apr 17, 2019 · If a small engine reads low compression I have a back-up compression tester to confirm such. I've seen instances where a guy would do a chainsaw rebuild due to their testing gauge not …

Aug 25, 2013 · Got a new compression tester for my B-day. Tested my Stihl BR420C Magnum backpack blower and it is only showing 70-80 PSI...runs pretty good though. Tested...

Nov 4, 2012 · Compression testing an older Stihl FS85 trimmer. Only gets 75 pounds of compression. Typical chainsaw wants to see 125 minimum or 150 to 160 is better, I think. So do weedeaters need …

Oct 5, 2009 · I've worked on several brands of small engines (mostly trimmers & blowers) and tested the compression in them. Most seem to fall in the 120-145 psi range if there is no visible piston damage. …

Aug 23, 2011 · what are the signs of a bad crank case seal? how will the saw sound or run?

Oct 10, 2014 · If you do not have the perfect tester and still want to rely on compression testing- use the tester you have on a known good engine, if the reading is around the same on both- assume they …