What does a Harley 45 Flathead motorcycle look like?
The 45 Harley flathead motor looks similar to a Big-Twin flathead. The easiest way to tell them apart is that big-twin flatheads (UL and VL) have their drive chains on the left, and the 45 has them on the right.
How long has the Harley Davidson flathead engine been in production?
The Harley 45 flathead engine was left pretty much unchanged throughout it’s 41-year production run. Until the Sportster surpassed it in 1998, it was Harley-Davidson’s longest running engine in production.
Is the Harley 45 engine the same as the OHV engine?
Factory bore, stroke, pistons, and rods were the same for all years of Harley 45 motors. Note that on 1936 and earlier engines, the oil holes and key-ways on the flywheels are different than on later 45 engines. Advantages of a flathead (side-valve) engine over an OHV (overhead valve) engine were cost of manufacture and simplicity.
What’s the difference between a Harley 45 and a wl?
The easiest way to tell them apart is that big-twin flatheads (UL and VL) have their drive chains on the left, and the 45 has them on the right. The WL series were manufactured from 1937 until 1952 and had a 45ci “high-compression” motor.
What kind of engine does a Harley 45 Flathead have?
In Class C rulings, flatheads are allowed to displace 750cc, while OHV motors were limited to 500cc. Harley 45 flatheads never needed lead. The reason tetraethyl lead was added to gasoline in the first place was to increase octane for vehicles with high compression. This is not an issue with old Harley flatheads.
When was the last Harley Davidson flathead made?
Most all of the Canadian-version WL’s were produced in 1943. Harley built about 90,000 WLA and WLC models during World War II. The Soviet Union alone bought 30,000 of them under America’s Lend-Lease program. During the Korean War, manufacture of Harley WLA started up again.
Factory bore, stroke, pistons, and rods were the same for all years of Harley 45 motors. Note that on 1936 and earlier engines, the oil holes and key-ways on the flywheels are different than on later 45 engines. Advantages of a flathead (side-valve) engine over an OHV (overhead valve) engine were cost of manufacture and simplicity.
The easiest way to tell them apart is that big-twin flatheads (UL and VL) have their drive chains on the left, and the 45 has them on the right. The WL series were manufactured from 1937 until 1952 and had a 45ci “high-compression” motor.
What kind of engine does a Harley Davidson flathead have?
This bike was more like the much loved but gone forever Indian Scout in being made light, having the 45 cubic inch (750cc) version of the Flathead engine with alloy cylinder heads to reduce weight and provide better cooling, and with an integrated engine and transmission unit.
What kind of engine does a 45 ” Harley Davidson have?
These motors feature a 45″ lower end with a 900cc Sportster top end, and they not only looked cool, but they ran as good as they looked. Paughco’s new Magnum Motor frames have all the same features of our standard 45″ frames with single front downtube styling, and the ability to use a 1941-1969 4-speed Big Twin transmission.
Where can I buy a 1950 flathead Harley?
1950 flathead 45 ci bike is brand new ground up unde 50 miles this bike was featured in easyrider Daytona 75 th bike week issue runs and rides great no disappointments $20,000 frim email or call 419 966 7078 thank you have clean Ohio title it’s ready to ride or show
The 45 Harley flathead motor looks similar to a Big-Twin flathead. The easiest way to tell them apart is that big-twin flatheads (UL and VL) have their drive chains on the left, and the 45 has them on the right.
When did Harley Davidson replace the flathead engine?
The KHK Sports model with its Flathead engine was eventually replaced in 1957 by the Harley-Davidson XL Sportster with its Ironhead overhead valve engine. But the Flathead engine had not been entirely replaced, just the top part. The bottom end of the new engine was the same as that of the old Flathead right down to those four little camshafts.
When was the first Harley Davidson flathead made?
The WL series were manufactured from 1937 until 1952 and had a 45ci “high-compression” motor. Harley-Davidson called this civilian model the Sport-Solo. The 45’s highest output model, however, was the Harley WR factory racer. In 1946, the 45ci WR Flathead racer was introduced.
What was the spark control on a Harley Flathead?
Retarding the distributor timing helps cold engine starting, and on early Harley flathead models this was done manually. The left hand grip was referred to as the “spark control” grip. Before kick-starting the engine, the rider twisted the cable-activated left grip outward, moving the ignition timer outward.
The WL series were manufactured from 1937 until 1952 and had a 45ci “high-compression” motor. Harley-Davidson called this civilian model the Sport-Solo. The 45’s highest output model, however, was the Harley WR factory racer. In 1946, the 45ci WR Flathead racer was introduced.
Retarding the distributor timing helps cold engine starting, and on early Harley flathead models this was done manually. The left hand grip was referred to as the “spark control” grip. Before kick-starting the engine, the rider twisted the cable-activated left grip outward, moving the ignition timer outward.