So here is the first post! It will be a big one that will showcase all of the progress done on this BSA project up to the creation of this blog. Work was started on Oct 27th, 2010.
Lets begin!
How we got it
Believe it or not, but this is the BSA as it was purchased. The parts are in a few boxes, we aren’t sure whats missing, and the realization of the task ahead is starting to sink in…It’s going to be a fun project!
The motor on the table before the top end breakdown
Engine is seized from sitting, and the top end needs to come off to free the pistons. The rocker box cover has already been removed in this picture.
The pistons are now free
Finally got the entire top end off, and freed the pistons.
We could not tap them down, and we had to heat up and cool the cylinder four times to free it all up. After that, we shimmed the cylinder so the pistons were all the way up, put pressure on the kick-start, tapped them down and they came right out.
Carbs taken apart
Took the carburetors totally apart (jets are still in for now while they wait to be cleaned).
The lines were so old, they were hard as rock and stiffened right onto the pipe the fuel goes through. We had to take a hacksaw and cut the lines free. Can’t see in this picture, but the are disgusting on the inside and definitely need this cleaning.
Frame before repaint
The frame (and swing arm) before cleaning and repainting.
Frame after paint
This is the frame (and swing arm) AFTER the paint. Pic does not do it justice at all, it almost looks brand new.
Had to use a special cleaning fluid two times first, then soap and water twice, then sanded down the entire frame, then wiped it down with acetone before the actual painting was done. Took about 4-5 hours.
Clear coat on the frame
This is the frame with a clear coat on it
Again, this picture does not do it justice at all, it looks really really nice in person.
Top motor mount
Here is the top motor mount with paint and clear coat.
Battery Box
This is the battery box with paint and clear coat.
Right side cover
Left side cover
Here are the side covers painted and cleared.
Motor mounts before and after sanding
Engine mounts and carb kits came today.
Here is what (in total for both) 1.5 hours of hand sanding did to get all the old paint off. After the sanding they were wiped down with acetone. These babies are now prepped for a coat of paint tomorrow, then a clear coat after that!
Carbs rebuilt
Carb kits came, and my father and I each rebuilt and cleaned one. He also polished them up a bit to make them look nice.
Cylinder back on
The cylinder is now honed and painted with black heat paint, and the pistons have been polished and cleaned of the carbon deposits, as well as the new rings being put on.
The dark spots on the top are from oil to keep the gasket surface from rusting, and won’t be seen when the head is back on. Pistons now move freely, and the engine is no longer seized! Soon the entire engine will be complete! They are gonna work like they are brand new!
Rockerbox cover polished
Rockerbox cover cleaned and polished. I don’t have a before pic, but this was super dull and dirty.
Can see the reflection of one of the big tools behind me haha.
Ran through a polisher/buffer, used a wire brush to get in the fins as good as possible, and took a wire wheel on a drill to get as much as the remainder as possible.
Motor mount painted and cleared
Here is one of the motor mounts re-painted and cleared.
Only one pic because they are both the same.
Head bottom
Head top
We cleaned, lapped and put the valves back into the head tonight. We performed a leak test after lapping the valves, and they are literally perfect. No leak AT ALL.
Primary cover off
Unexpectedly had to pull off the primary case tonight to manually turn over the engine with a wrench. Pushrods wound up seating wrong and jamming the engine and causing a valve spring to stick. Everything has been sorted out, and is perfectly fine.
After sorting that all out and getting it to turn over properly, we called it a night.
Not like this cover didn’t need to come off, it was being removed Saturday, if not tonight, for the polishing anyway.
Here you can see the primary chain , clutch, and etc.
Primary cover
Primary after polish
Here is that primary cover, before and after the polishing. Used a buffer wheel with different grades of rouge to get that nice shine.
Carbs on motor
Slapped the carbs back onto the motor, and tightened down the rockerbox cover.
Starting too look like a motor again! 🙂
Behind the left side engine cover
Behind the cover on the other side of the engine.
Can see points, kickstart and shifter shafts.
Left engine cover before polish
Left engine cover after polish
Here is the left side of the engine all polished up. Used the same method as the primary cover to get that shine.
Right side motor complete
Here are some pics of the left and right side of the motor after its polishing, cylinder painting, and top end rebuild.
Tank left before repaint
Tank right before repaint
Tank top before repaint
Tank bottom before repaint
This is the gas tank before its sanding and repainting. This will all be done by hand and will take a bit of time to do.
Airbox before repaint
Here is what the airboxes look like before the repaint as well. Only one complete box is shown here, but they are both the same.
The motor in the frame, left side
Motor in the frame, right side
The frame on a motorcycle/ATV jack
These are various pictures of the frame finally back in its home. Took some time to get it in there because of bolt lengths, and involved some clever maneuvering. It’s finally starting to take some shape though!
Forks apart
Took the front forks apart tonight in between sanding things. The short pieces will be polished and the long pieces will be cleaned. Also putting in some new fork seals which are on the way as I type this!
Forks polished and put on the frame
Here the forks have been polished up and put back onto the frame. The lighting isn’t very good, so I will try to get a better pic of it up when I can. It almost looks like a motorcycle now!