Power Solutions International 560001-R2 — Engine Compression Test
Testing & diagnosis · Engine cylinders
For the Power Solutions International 560001-R2, from the Power Solutions International service manual.
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Procedure
- With engine at operating temperature, detach spark plug connectors and remove spark plugs.
- Detach wiring harness plug from ignition module.
- Open relay holder cover and pull the fuel pump relay out of the base.
- Install a compression gauge capable of measuring range up to 250 psi.
- Actuate starter for approx. 4 seconds with throttle valve fully open; minimum engine speed should be 300 rpm.
- Reinstall spark plugs, harness, and relay once compression test is completed.
Tools required
- Compression gauge (up to 250 psi) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Compression pressure normally 194 psi (Min. 170 psi) at 300 rpm
- Variation between cylinders no greater than 15 psi
Source: Power Solutions International 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.