Classic Ford Maintenance

Flathead V8 Water Pump and Mount Service Guide

Flathead V8 Water Pump & Mount Service Guide
1937–1948 Ford Passenger Car | 1939–1948 Mercury V8

Servicing the cooling system on a 1937–1948 Ford passenger car or 1939–1948 Mercury V8 requires more than just swapping a part. The flathead platform integrates the water pumps, front engine mounts, and cooling hoses in a way that makes access and sequencing important. Whether you’re replacing water pumps, water pump bolts, or addressing motor mounts at the same time, the process benefits from a clear plan.

The parts referenced here include:

These components are commonly serviced together on 37–48 Ford and 39–48 Mercury V8 applications due to their physical proximity and shared mounting areas.

Why These Systems Overlap

On these flathead V8 engines, the water pumps mount at the front of the block and are positioned near the front motor mount assembly. In many cases, removing the pumps requires relieving load from the mounts. Aging rubber mounts can sag over time, changing engine position slightly and complicating pump removal or installation. Addressing motor mounts during cooling system service can help maintain proper engine alignment.

Fitment may vary slightly by model year or chassis configuration. Always confirm application for Ford passenger car versus Mercury V8 before ordering parts. Give us a call or email and we will answer your questions!

Basic Removal Sequence

A structured approach reduces stress on hardware and surrounding components:

Drain Coolant
Begin by fully draining the cooling system. Open the radiator petcock and, if equipped, block drains to remove as much coolant as possible.
Remove Radiator Hoses (Upper and Lower)
Disconnect both hoses from the radiator and water pump outlets. Inspect hose condition during removal.
Loosen Motor Mount Bolts
The front motor mount assembly may need to be loosened to allow slight engine movement. Do not fully remove the mount until the engine is properly supported.
Support the Engine
Carefully jack up the engine using a wood block under the oil pan. The wood block helps distribute load. Raise only enough to relieve tension from the mounts.
Remove All Eight Water Pump Bolts
Each pump is secured with multiple bolts. Remove all mounting hardware evenly to prevent binding. The water pump bolt kit (78-8501-HK) ensures proper hardware replacement if originals are corroded or worn.
1. *PRO TIP there is a bolt in each of the lower water pump outlets.

Once the bolts are removed, the water pumps (78-8501-PR) can be removed from the block. Surfaces should be cleaned thoroughly before re-installation.

Motor Mount Considerations

The motor mount kit (78-6038-BDK) supports the engine’s front weight and isolates vibration from the frame. When mounts are deteriorated, engine position may shift slightly. Replacing mounts during water pump service is practical because access is already established and the engine is supported.

Fitment should always be verified for specific Ford passenger car or Mercury V8 applications within the 1937–1948 and 1939–1948 ranges.

Restoration-Focused Approach

Flathead cooling system service is straightforward when handled methodically. These engines were designed for serviceability, but age introduces corrosion, hardware fatigue, and rubber deterioration. Replacing water pumps, water pump bolts, and motor mounts as a coordinated service helps maintain structural alignment and cooling integrity.

Taking the time to follow proper removal steps protects original components and ensures the flathead V8 continues operating as intended.

View our full selection of Flathead V8 Water Pumps and Cooling Components.

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Old Ford Trucks

1979 Ford F150

1979 Ford F150 The 1979 Ford F150 stands as a significant chapter in the storied history of Ford trucks. Known for its durability, classic design, and utility, the '79 F150 is a beloved model among enthusiasts of classic Ford automobiles. Specifications Engine Options: The 1979 F150 came with various engine options, including: 4.9L 300 Inline-6: A reliable workhorse known for its longevity. 5.0L 302 V8: Offered a balance of power and efficiency. 5.8L 351M V8 and 6.6L 400 V8: These larger engines were preferred for heavier towing and payload capacities. Transmission: Standard: 3-speed manual. Optional: 4-speed manual and 3-speed automatic. Dimensions: Wheelbase: Ranged from 117 inches (regular cab, short bed) to 155 inches (SuperCab, long bed). Length: Varied based on the model, from 188.5 inches to 235 inches. Width: Approximately 79 inches. Towing and Payload: Depended on the engine and configuration, with the larger engines supporting greater capacities. Part Numbers: Locating specific part numbers for a vehicle as old as the 1979 F150 can be challenging. However, some common parts include: Brake Pads: D84-2 Oil Filter: FL-1A Spark Plugs: AGSF32. For more specific parts and their numbers, enthusiasts often refer to vintage Ford parts catalogs or online forums. A great place to get real people to talk parts with, is C&G Ford Parts in Escondido, California. Production Numbers: Ford does not publicly release detailed production numbers by year and model. However, it's known that the F-Series was America's best-selling truck in 1979, contributing significantly to the series' overall sales. The F150's popularity in this era helped solidify its legacy in the Ford lineup. Accessories and Customization: The 1979 F150 was often customized and accessorized, reflecting the owner's needs and style. Popular accessories included: Chrome Bumpers: For enhanced aesthetics. Toolboxes: Fitted in the bed for utility. Lift Kits: Many owners lifted their trucks for off-road capability or for a more imposing road presence. Custom Paint Jobs: Reflecting the era's penchant for personalization. Conclusion: The 1979 Ford F150 remains a beloved classic. Its robust construction, range of engine options, and classic styling have ensured its lasting appeal. While specific part numbers and production figures can be elusive, the truck's impact on the automotive landscape is undeniable. Whether restored to its original glory or customized for modern roads, the '79 F150 continues to be a symbol of Americana and the enduring legacy of Ford trucks.

Old Ford Cars

The 1955 Ford Fairlane: A Classic Icon of American Automotive History

The 1955 Ford Fairlane: A Classic Icon of American Automotive History In the realm of classic American automobiles, the 1955 Ford Fairlane stands out as a significant model that marked Ford's return to prominence in the auto market. Named after Henry Ford's estate, Fair Lane, in Dearborn, Michigan, the Fairlane was introduced as Ford's premier car for that year. With a new frame and 11" brakes, the Fairlane replaced the Crestline as the flagship offering. Design and Styling The 1955 Fairlane was distinguished by its elegant and modern styling, characterized by a lower, longer, and wider profile compared to its predecessors. It featured a distinctive stainless steel stripe running along its side with striking 2 tone paint schemes, which became a hallmark of the Fairlane models. The car was offered in six different body styles, including two- and four-door sedans, hardtop, and a convertible known as the Sunliner. A standout among these was the Crown Victoria, which boasted a tinted, transparent roof panel, adding a futuristic touch to its design. Engine and Performance The Fairlane came equipped with options for both a 223 cubic inch (3.7 L) straight-six engine, a 272 cubic inch (4.5 L) V8, or a 292 cubic inch V8 (4.8 L) with a 4 barrel carb providing buyers with choices tailored to different performance needs. The V8, in particular, was a point of interest for its power and smooth operation. Transmission options included a Fordomatic automatic or a three-speed manual. Market Impact The introduction of the Fairlane was part of a broader effort by Ford to rejuvenate its lineup and recapture market share from competitors like Chevrolet. The Fairlane was not just a vehicle; it was a statement of Ford's commitment to innovation and style. In 1955, Ford managed to outsell Chevrolet, ending a 20-year streak where Chevy had been the best-selling car in America, a testament to the Fairlane's appeal and Ford's strategic marketing. Features and Accessories Ford emphasized luxury and convenience with the Fairlane. It included features like dual exhaust systems on higher-end models which improved both performance and sound. The car also introduced several firsts, including Ford's first factory-installed air conditioning system, known as "Select Aire," which was optional. Innovations like the panoramic windshields, new for 1955, offered drivers a broader view, enhancing safety and driving experience. Cultural Impact The 1955 Fairlane wasn't just a car; it became an emblem of the era's optimism and love for automotive style. Its design and engineering influenced subsequent Ford models and left a lasting impression on American car culture. The Fairlane's success helped pave the way for future models, including the introduction of the Fairlane 500. Legacy Today, the 1955 Ford Fairlane is celebrated by collectors and car enlthusiasts for its blend of style, performance, and historical significance. Restorations are common, and the car's parts are sought after, with companies like Classic Industries providing a range of reproduction parts for enthusiasts looking to bring their Fairlane back to its original splendor. In conclusion, the 1955 Ford Fairlane was more than just another car on the road; it was a symbol of Ford's resurgence and a reflection of the vibrant automotive culture of the 1950s. Its design, performance, and the enduring legacy it left behind continue to make it a beloved piece of automotive history.

Old Ford Cars

CLASSIC MUSTANG PARTS

There’s nothing like the sound of a 289 V8 with a four-barrel carburetor purring down the street. When you’ve got the ponies galloping under the hood of a 1966 Mustang, it doesn’t matter if the sun is shining or the rain is pouring - it’s a beautiful day when you’re behind the wheel of a classic. Classic cars, especially ones like the Mustang, are always head turners. It’s no wonder your car sounds good. You’ve kept your beauty running smoothly with classic Mustang parts whenever you need to replace something. Sometimes, when you own a classic, just like with the newer model cars, a problem can develop unexpectedly. The problems can be small or large. For example, you might start to notice that your Mustang doesn’t have the same gallop it used to have. You don’t see what the problem is until one day, you see smoke like you’ve never seen before. When you see white smoke coming from the exhaust of the car, you need to get it home and check the dipstick to see if there’s a distinctive milky appearance in the oil. That could mean a blown head gasket. When you realize that there’s a blown head gasket, you know that in order to get the car up and running in the best of shape, you’ve got to find an auto store that sells classic Mustang parts. You may not have one local, you may have to order online, but whatever you have to do to get parts for your car, it’s worth any effort. You don’t want to compromise with just any parts seller, come to the best here at C&G Ford Parts! A lot of times, you’ll see shops advertise that their replacement parts for your classic car are so “identical looking” that you can’t see a visual difference. You may not be able to see a visual difference with a knock off part, but you can certainly tell a difference in how the car runs and in how long that part will last. Buying classic Mustang parts isn’t just for when you need to fix something on the car. These are what car enthusiasts look for when they’re restoring a classic to its former glory - and if you ever decide to sell you car, it should have parts made just for it. It doesn’t matter if it’s a small job like replacing your gas cap or a big job like replacing the windshield seal - you’ll get more mileage and less headaches by choosing classic Mustang parts from C&G Ford Parts, always choose the best.