Brock Vanraalte

2025

4 Stroke Mercury Outboard Compression Chart

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January 22, 2025

4 Stroke Mercury Outboard Compression Chart – Anything lower can indicate worn or damaged components,. Pressure test was performed with hot and cold engine using two different tester kits. I took a compression test on my 3 cyl mercury ,top piston 180lbs,middle one 150lbs ,buttom on at 90lbs.took the head out i put it flush. 2002 mercury outboard 150 hp salt water series 2 stroke engine.

Normal atmospheric pressure is 14.7 psia at sea level. Every spot, every tow, every cast. 9 x 14.7 is 132 psia or 118 psig, the latter being what your compression gauge reads. Leak down test are only viable options on 4 stroke engines and compression test are no longer even recommend on 4 stroke outboards by yamaha.

4 Stroke Mercury Outboard Compression Chart

155 lbs on all cylinders. Engine starts easy and runs. What should compression be on 50 hp 4 stroke mercury?

May 3, 2019 8 mins read mercury 4 hp fourstroke test choosing the right outboard for your tender is never easy. #1 hello, recently purchased a 2000 16 sylvan aluminum fishing boat with a 50 hp mercury 4 stroke engine, model # 50 elpt 4s. This post tells you how.

With innovative technologies, simple maintenance and efficient performance, mercury fourstroke. Dealer replied should be over 200 per cylinder. Fourstroke make every minute count.

Check the readings we got for our subject engine, a 2006 suzuki df115.

Mercury Outboard Compression Test Mercury 2021