The Marine Knowledge Network
Field write-ups from real jobs - what broke, what fixed it, torque specs and part numbers included. Ask it a question; specs answer inline.
9 articles for “compression test”
Outboard Compression Testing: How to Do It and Read the Results
## Why it's the first test on any used or sick engine A compression ...
The On-Water Diagnosis Kit: What's Actually in the Bag
... on the block is not a test) - Compression tester with the common thread adapters ...
Outboard Overheating: A Diagnosis Flow That Doesn't Guess
... already have scuffed pistons — do a compression test before investing the customer's money ...
Reading Marine Spark Plugs: A Diagnosis in Your Hand
... Any time plugs come out — tune-up, compression test, winterization — lay them out **in ...
Exhaust Manifold and Riser Inspection on Marine V8s
... the owner may have bent rods — compression test and inspect before promising that new ...
Prop Selection Basics: Pitch, Diameter, and Hitting the RPM Window
... Run a WOT test: normal load, trimmed properly, GPS speed and tach reading. A ...
Pontoon Boat Inspection: Logs, Leaks, and Pre-Season Checks
... Soap-bubble testing with **low-pressure** air (a shop vac in blow mode is ...
Yamaha WaveRunner No-Start Diagnosis
... Compression test if spark and fuel check out — a season of hard use or ...
Trailer Surge Brakes: Inspection and Service
... Road test: brakes should apply smoothly under moderate braking, no grab, no pull, and ...