73 Honda CB750 Custom Build Part 16

In this episode the cylinder head gets installed. One thing to note is the absence of four dowel pins and rubber seals that would go between the cylinder and the head on the four inner head studs on the exhaust side of the engine. I did not have these parts in my collection of goodies from the previous owner. Early CB750 engines did not have these dowel pins and seals. They were added later to help the oil flow back down into the bottom of the crankcase. There are four holes in the head that collect the oil after it has been pumped up to the camshaft and allow it to run down through the same hole the cylinder head passes through. These parts are no longer available so I just left them out as in the earlier engine. I’m guessing they were added to help prevent oil leaks between the head and the cylinder as the engine accumulated high mileage.

73 Honda CB750 Custom Build Part 14

This week I fitted the pistons with the rings, attached the connecting rods, slid the piston/rod assemblies into the cylinders then installed them in the up crankcase and onto the crankshaft, upside down! This method worked out fairly well as I didn’t have to struggle with trying to slide the cylinder down onto the pistons the usual way with a special block holding them in place.

keep on hackin!

73 Honda CB750 Custom Build Part 13

After some major remodeling in the garage I’m finally getting back to work on the Honda CB750. The new work bench is great and makes it a lot easier to get work done on the engine, which is the primary focus of this week’s video. This week I worked on installing the piston rings and honing the cylinders so I could get the pistons with rods attached loaded into teh cylinders. I’ll be putting that assembly onto the crankcase next week in part 13. Until then…

Keep on hackin…

2008 24″ iMac hard drive and RAM upgrade

I recently retired my Windows XP machine to the workshop and replaced it with a 2008 24″ iMac desktop computer. The last time I owned a Mac was in 2005 so it took a few weeks to get back up to speed. OSX is a much more stable OS than anything that ever came from Microsoft (IMO). It’s been working out great so far and soon I’ll be using Final Cut Pro X to produce my Hack A Week videos.

This machine came with a 250GB hard drive which is hardly enough capacity to be using for saving video files. So I decided to upgrade the drive with a 3TB drive that I already had in hand. Guess what? The largest HD you can install in an early 2008 24″ iMac is 2TB. So after a trip to Best Buy I had a 2TB drive and installed it.

…and now, my adventures with this project.

Thanks for watching, happy new year, and…

keep on hackin!