Harbor freight compression tester - Arborist, Chainsaw & Tree …
2014年5月18日 · So I recently had a 30% off coupon for Harbor Freight and decided to get a compression tester. Well, no surprise, it shows all my good running saws at anywhere from 90 to 115 psi. Is there any fix for this or should I just get a refund or should I try for a replacement unit? I know there is a...
Compression tester | Arborist, Chainsaw & Tree Work Forum
2019年4月17日 · They usually would say, I tested the compression gauge on my air compression and it reads same as the air tank gauge. I cannot find any info about a mityvac 5300 compression tester. ????? Usually one of the first things I check on a chainsaw BEFORE I take a compression reading is remove the muffler and take a look at the cylinder/piston.
How To Do A Compression Test | Arborist, Chainsaw & Tree Work …
2023年6月3日 · I've seen good automobile mechanics give a wrong diagnosis of a chainsaw because their automotive compression tester read really low and most generally when I tell them their gauge is not reading correctly for a small CC engine: They usually say their high priced Snap-On, Mac compression gauge reads correctly because I test it on my air ...
Chainsaw Compression Testing - Arborist, Chainsaw & Tree Work …
2011年1月23日 · Just had the same problem with my tester. I did a cold compression test on my Dolmar and got a 155 psi. I started it up to get it warm for a hot compression test and when I put the threaded hose back into the saw I twisted to hard and the fitting spun like yours. Now the tester will only go up to around 90 psi and start to bleed back down.
How to properly do a compression test
2024年5月21日 · A compression tester is good to help with diagnose. Consider a vacuum/pressure tester to go along with your diagnosing tools. You could have a leak that reduces your compression where as a vac/press tester can help you locate leak, fixing it therefore raising your compression (like a pressure DECOMP relief valve). **EDIT to change pressure to ...
Compression tester issues? - Arborist, Chainsaw & Tree Work Forum
2017年5月21日 · I have fooled around with my automotive compression testers on chainsaws, trying small hoses and re-locating Schrader valves, etc, and never could get a automotive type gauge to respond as well as the 2 cycle compression tester that I bought that was designed for small 2 cycle engines.
You get what you pay for - Compression Tester
2008年7月6日 · A couple of weeks ago, I was testing the compression on my Dolkita 7901 and it showed only 130lb. I knew this was not right, so I tried again and noticed that the guage was leaking. So, after some research, I bought the Snap On MT308L compression tester kit.
Schrader valve? | Arborist, Chainsaw & Tree Work Forum
2008年7月29日 · My compression tester, which I believe is the same model as yours, came with an extension/adapter that is about two inches long and screws onto the end of the hose. This places the Schrader valve up inside and a little bit away from the engine's cylinder.
compression tester | Arborist, Chainsaw & Tree Work Forum
2011年1月24日 · Compression tester set from Sears: indiansprings. Jan 24, 2011. indiansprings Firewood Purveyor. Joined ...
Compression gauge drops quickly - Arborist, Chainsaw & Tree …
2011年12月22日 · What would be the reasons the compression gauge needle would drop quickly when performing a compression test? I am trying to check the compression on my Stihl BR420c blower. My compression gauge does have the schrader valve in hose. After about four pulls the compression builds up to about 125 psi but immediately start dropping down.