1946 VH 500 Restoration
Posted: Sat Nov 02, 2024 6:49 pm
I found and purchased this "motorcycle" in South Africa back in 1980 before moving to the USA in 1985. It was actually the engine and gearbox in the frame with the spark plug that had a piece of pipe welded onto it, and was used as an air compressor out in a rural area in Natal shortly after I ran, and finished the Durban to Johannesburg Vintage rally on my set-dad's 1934 VB 500. Fortunately, many of the other components like the forks, tank, wheels were there as well. At that time, the restoration was sidelined when I began began a sailing adventure that lasted a couple of years, and ultimately moved to the USA in 1985.
I began this restoration in 1987 after having my mother ship a crate with all my components over to Texas. With limited storage space and time, I started by disassembling the engine that turned out to be in pretty good condition considering where it came from and how it was used, the frame was perfect and straight, as were the Mag, Dynamo, Girder Forks, Petrol and Oil tanks, Mud Guards and Headlight. The wheels rims were not, but the hubs were salvageable.
This exercise made me realize I was missing a few bits and that's when I contacted Roger Gwynn at Dragonfly Motorcycles in the UK who was an immense help. Over the next several months, I had compiled a list of spares I would need then ordered/purchased them in stages and when they became available. Over the next 2 years or so, I had the frame, forks and mud guards blasted and painted at a local paint & body shop, had the petrol tank, seat and front springs, and a bunch of brackets etc. re-chrome plated. I reassembled the engine after having the cylinder honed to remove minor scratches I assume were a result of no air cleaner during it's air compressor life, new piston & rings, valves ground and new gaskets all round. I rebuilt the wheels with new rims and spokes and then started assembly by installing the engine, gearbox, mud guards and wheels. The rest of the restoration to get it where I could start and ride the bike took several additional months. This is how the bike remained for decades for personal reasons, and over a decade of professional drag racing, and then retiring.
This October, I decided to pick it back up. I knew I had quite a bit of re-doing to do: Carburetor, fuel tank, oil etc. and this is when I realized that I had the incorrect Amal 276BP/1J carburetor. I needed a 289D/1MB to match the 1 1/16" cylinder head port. I searched and searched, I didn't feel like paying $600-$700 to have one shipped to the US, so I continued my search, contacting my family and friends in South Africa but no luck. Then I hit the jackpot, I located one, and exact match with slides and bowl, on eBay that I purchased for $160 that included other carb pieces I don't have a use for. I drained all the oil, removed the oil pump and lower scavenger screen to check them, better safe than sorry!
After filling the oil tank with new oil and making up a temporary rubber fuel line with tap and fuel filter to catch any debris that would come loose in the petrol tank while I wait on replacement seals for the OEM tap, I finally started the old girl, made small air mixture and idle adjustments, then rode it around the back yard for several laps. Talk about an exhilarating experience after all these years of the bike collecting dust in my workshop.
There is more to do now: the wiring, finding a speedo, attaching the tank badges, adjusting the forks that didn't seem to work, and the gearbox is not shifting very good so I'll have to pull it out and investigate. The attached photo is in it's current state.
I began this restoration in 1987 after having my mother ship a crate with all my components over to Texas. With limited storage space and time, I started by disassembling the engine that turned out to be in pretty good condition considering where it came from and how it was used, the frame was perfect and straight, as were the Mag, Dynamo, Girder Forks, Petrol and Oil tanks, Mud Guards and Headlight. The wheels rims were not, but the hubs were salvageable.
This exercise made me realize I was missing a few bits and that's when I contacted Roger Gwynn at Dragonfly Motorcycles in the UK who was an immense help. Over the next several months, I had compiled a list of spares I would need then ordered/purchased them in stages and when they became available. Over the next 2 years or so, I had the frame, forks and mud guards blasted and painted at a local paint & body shop, had the petrol tank, seat and front springs, and a bunch of brackets etc. re-chrome plated. I reassembled the engine after having the cylinder honed to remove minor scratches I assume were a result of no air cleaner during it's air compressor life, new piston & rings, valves ground and new gaskets all round. I rebuilt the wheels with new rims and spokes and then started assembly by installing the engine, gearbox, mud guards and wheels. The rest of the restoration to get it where I could start and ride the bike took several additional months. This is how the bike remained for decades for personal reasons, and over a decade of professional drag racing, and then retiring.
This October, I decided to pick it back up. I knew I had quite a bit of re-doing to do: Carburetor, fuel tank, oil etc. and this is when I realized that I had the incorrect Amal 276BP/1J carburetor. I needed a 289D/1MB to match the 1 1/16" cylinder head port. I searched and searched, I didn't feel like paying $600-$700 to have one shipped to the US, so I continued my search, contacting my family and friends in South Africa but no luck. Then I hit the jackpot, I located one, and exact match with slides and bowl, on eBay that I purchased for $160 that included other carb pieces I don't have a use for. I drained all the oil, removed the oil pump and lower scavenger screen to check them, better safe than sorry!
After filling the oil tank with new oil and making up a temporary rubber fuel line with tap and fuel filter to catch any debris that would come loose in the petrol tank while I wait on replacement seals for the OEM tap, I finally started the old girl, made small air mixture and idle adjustments, then rode it around the back yard for several laps. Talk about an exhilarating experience after all these years of the bike collecting dust in my workshop.
There is more to do now: the wiring, finding a speedo, attaching the tank badges, adjusting the forks that didn't seem to work, and the gearbox is not shifting very good so I'll have to pull it out and investigate. The attached photo is in it's current state.