Blackmer Pump Service & Fuel-Trailer Pumping Systems

Blackmer Pump Replacement & Fuel-Trailer Pumping Systems

If you run a fuel trailer, a tank truck, or a bulk plant, the pump is the part that actually makes you money — when it quits, you stop loading and unloading. Ames Hydraulics services the Blackmer sliding vane pumps that move fuel, oil, and refined product on equipment all over Central Iowa. Whether you need a worn unit rebuilt or a full blackmer pump replacement, we get the pumping system back in service so you can get back to running product.

Blackmer pumps earned their reputation on tank trucks and fuel trailers because the sliding vane design holds up to the work. The vanes ride out against the pump bore and self-adjust as they wear, so the pump keeps its flow rate instead of falling off the way a worn gear pump does. They are self-priming and will strip a line dry, which is exactly what you want when you are pulling the last of a load out of a compartment. That is also why a tired pump is worth saving when the rest of the unit is sound.

When You Need a Blackmer Pump Replacement

A sliding vane pump gives you warning before it dies. Most of the calls we get start with one of these:

• Slow flow or long load times. When the vanes and end discs wear past their limit, the pump loses volume. Sometimes new vanes fix it; sometimes the bore is worn and the unit is past rebuilding, which is when a blackmer pump replacement is the honest answer.
• Won’t prime or won’t hold prime. Worn vanes, a bad relief valve, or a seal pulling air will all kill the pump’s ability to self-prime and strip the line.
• Leaks at the seal. A weeping shaft seal on a fuel pump is not something to run on. We reseal it before it becomes a spill.
• Noise, vibration, or a relief valve that chatters. These point to internal wear or a relief set wrong for the system.

We open the pump up, measure what is worn, and tell you straight whether it is a rebuild or a replacement. One of the strengths of the Blackmer design is that the non-metallic vanes, end discs, and seals are replaceable — on many installs the vanes can be changed without pulling the whole pump out of the piping. When the parts are available and the bore checks out, a rebuild is the cheaper path. When it does not, we handle the full pump swap.

The most common mistake we see is a fuel hauler who keeps running a pump that is well past its vanes, hoping to squeeze another season out of it. A sliding vane pump that is starved of flow runs hot and works the relief valve harder, and that wear compounds. Catching it early is usually the difference between a set of vanes and a full blackmer pump replacement. If your load times have been creeping up, that is the pump telling you it is time.

Blackmer Pump Rebuild and Repair

A proper Blackmer pump rebuild is not just dropping in new vanes. We inspect the rotor and bore for wear, replace the vanes, end discs, and seal rings, check the relief valve and reset it to the system, and verify the pump primes and pulls flow before it goes back on the trailer. We service the common PTO-driven fuel trailer pump setups along with cabinet-mounted and pedestal units. If your sliding vane pump is part of a larger pumping system — meter, hose reel, air eliminator, relief plumbing — we work the whole package, not just the pump.

Fuel Trailer Pump Repair, Start to Finish

Most of the pumps we touch are mounted on working fuel trailers and tank trucks, so we think about the whole job, not just the casting. That means checking the PTO and driveline that turns the pump, the relief and bypass plumbing that protects it, and the hoses and fittings on either side of it. A fuel trailer pump repair done right addresses why the pump failed, not just the symptom — an undersized relief, a starved inlet, or a driveline running too fast will eat a new pump as fast as the old one. We have the welding, fabrication, and hydraulic shop under one roof to mount, plumb, and drive the pump correctly the first time.

If the pump issue turns out to be part of a bigger tank or trailer problem, we handle that too. A cracked tank, a bad valve, or a corroded fitting is the kind of work that goes hand in hand with pump service. See our tank trailer and fuel tank repair page for that side of the work. And if your rig also moves dry product, our pneumatic blower system service covers the air side of bulk hauling.

Why Bring Your Pump to Ames Hydraulics

We are a real hydraulic and equipment shop in Ames, Iowa — not a parts counter. We give you a price up front before the work starts, we tell you honestly whether a rebuild or a blackmer pump replacement is the smart move, and we test the pump before it ships back so it works when it hits your yard. We also offer free pickup and delivery within 60 miles, so if your trailer is down hard you do not have to limp it in.

A fuel trailer that will not pump is a truck that is not earning. If you are facing a blackmer pump replacement, a rebuild, or a fuel trailer pump repair, call or text Ames Hydraulics at 515-292-2599, or bring it to 210 Freel Dr, Ames, IA 50010, Monday through Friday, 7AM–5PM. We will tell you what it needs and what it costs before we turn a wrench.