Kohler TP 4.0 D — Testing Pump
Testing & diagnosis
For the Kohler TP 4.0 D, from the Kohler service manual.
Browse Kohler generators & specs →
Procedure
- Before running, check oil and pull engine over with retractable starter to make sure nothing is binding in pump.
- Fill with prime water and start engine.
- After warm up, run engine at full throttle and check vacuum with vacuum tester to make sure no leaks developed.
- A vacuum of 20 to 25 lbs at sea level should be read within 5 seconds.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Vacuum: 20 to 25 lbs at sea level within 5 seconds
Source: Kohler 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.