Mitsubishi GS16R-PTK — Compression Pressure - Measure
Testing & diagnosis · Engine
For the Mitsubishi GS16R-PTK, from the Mitsubishi service manual.
Applies to: Mitsubishi GS16R-PTK, Mitsubishi GS16R-PTK engine
Before you start
- Ensure the battery is fully charged to crank the engine with the starter.
Procedure
- Remove the spark plug from the cylinder head where the compression pressure is to be measured.
- Install the gauge adapter into the spark plug hole with the gauge hose inserted.
- Shut off the fuel gas supply, and crank the engine with the starter.
- Read the engine speed and compression pressure while running at a stable speed.
- If the measured value exceeds the limit, overhaul should be done.
Tools required
- Compression gauge P/N 35A91-03300 Amazon
- Gauge hose P/N 35A91-03400 Amazon
- Gauge adapter P/N 35A91-03500 Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Standard 2.6 MPa {26.5 kgf/cm2} [377.1 psi] at approx. 120 min-1
- Limit 1.95 MPa {19.9 kgf/cm2} [282.82 psi]
Source: Mitsubishi service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.