Reply To: Disappointment of buying from Ebay

[Evinrude 25]

I send the seller a message today

Hello,
I use my company high precision gauge (made in Germany) to calibrate the Festo regulator which allow to dial in any pressure range ( 0-10 bar). I check it against my air compressor gauge as well. All of them in spec within +/- 1.5 psi. So for the nature of this test, this tolerance is acceptable. Then I hook up each my compress tester gauge to this system and check the pressure range from 10psi to 90 psi range with 10 psi incremental range. My compressor gauge shows 90 psi, my Festo regulator dial to 6 bar or 88.2 psi and the compression gauge shows almost 88 psi. I also perform the test to other my compression gauge, the junky Chinese shows only 75 psi while the true pressure is 88 psi. I also bought a brand new gauge in the picture to verify and that proves my 15 year old gauge is accurate. Then I use my 15 year old gauge to conduct the test on your powerhead again with some WD-40 to mimic the time you test (as per your statement to defend 120 psi/120 psi result that the time you tested your powerhead may have oil residue on the cylinders so it gave higher compression). It shows the same number before.