SPT PI Pioneer Diesel The F167 Delivery Valve: Why Replacing It Won’t Always Fix Your Diesel Engine A diesel engine that is hard to start, smokes excessively, or runs unevenly does not necessarily have a failed delivery valve. On…
PI Pioneer Diesel 7135–110 Repair Kit: How to Diagnose a Leaking CAV DPA Pump Before Rebuilding If an older Ford, Massey Ferguson, or John Deere tractor has started leaking diesel around the injection pump or takes longer than usual to…
PI Pioneer Diesel 146402–3820 Pump Head Rotor Replacement Guide: Common Failures, Repair Tips & Installation Advice Diesel engines equipped with mechanical rotary injection pumps can continue working reliably for decades, but internal precision components…