What's Up, Doc?

 Not much other than the progression of days....and work!

My "work" is mostly stuff I enjoy doing, along with the usual household chores, house upkeep, yadda, yadda, yadda.

I finally have all the parts I need (belts, idler tires, and capstan pressure rollers) to finish the #2 Nakamichi BX-300, so that will consume some time. The mechanical and electrical alignment take a fair amount of time to do, so this one is in sick bay for another several weeks.

The previous BX-30 I rebuilt is now in it's new home, and the new owner is quite happy.

Got this old Heathkit IG-37 "FM Stereo Generator" out of here to a new home and the guy really wanted it, warts and all.

And two people are very interested in the Heathkit "Harmonic Distortion Analyzer", and the Heathkit "IM Distortion Analyzer", both of which have been rebuilt and meet all Heathkit Specifications.

The "Audio Generator" I'm keeping, as it's an excellent piece of gear for doing what it does. Excellent frequency stability, and the distortion is well under .1%.

And I'm accumulating a YUUUUGE pile of clean, refurbished Toyota parts for the Supra. This is about 1/4 of what I've cleaned up this Winter.

Both sections of the Intake Manifold and all the Fuel Injection parts are (finally) off the car, and waiting their turn at "Dr. Jim's Health Spa for Decrepit Automobiles". I'll have to drag them into the basement shower to scrub them. Since I'm doing the cleaning work inside the house, the use of solvents is verboten, and I've been using Simple Green to scrub them with. It's not as fast as using mineral spirits, but it does the job, is low odor, and won't ignite. I also have some "Secret Sauce" I mixed up for cleaning things that I use.

And since it's been such a mild Winter (so far...), I've been able to work out in the garage on the car without freezing my tail off. The main thing I'm working on now is removing the bolt that holds the Harmonic Damper/ Balancer to the Crankshaft. It's a big bolt, it's in there with 169 ft-lbs of torque, and it hasn't moved in 40 years. Using my impact with fresh batteries only resulted in the crank during about 10* CCW, so I stopped. I needed a way to hold just the hub of the balancer while I let my impact worry away on it. You cannot apply any differential torque to the balancer, as in twisting the center while holding the outside. It will over-stress the bonded rubber layer between the two pieces, and lead to separation of the pieces. Trust me, you do NOT want your Harmonic Damper to come apart and exit the car while doing 6500RPM. I've seen it happen, and it ain't pretty. Not as bad or as violent as a clutch explosion, but it will most likely ruin your day. Or engine. Toyota had a 3-piece set of "Special Service Tools" to hold the hub, but good luck finding them. You can see in this shot, that the harmonic balancer has tapped holes in it. The SST attached to the bolts in the hub, had an 18" handle on it, and kept the hub from rotating while you wailed away on getting the blasted bolt loose.

I'll clean out the tapped holes with a .30 cal bore brush, as it fits perfectly, and then run a re-threading tap through them to get the stubborn stuff out.

 Seeing as the Special Service Tool is "Just a plate with two holes and a handle", I'm going to fabricate one. With a bit of clever design, I'll also be able to use it to hold/rotate the camshaft sprockets. too. No, I don't know if they were made by Spacely. There's a "scrap metal" place not far from here where I can get the stock, and I have enough tools to build it build with one exception.

If I'm going to fab metal, I need one of these:

Yes, it uses flux-cored wire which can make messy welds if you're not careful, but I've been welding off-and-on for over 40 years, so I think I can figure it out.

Be nice to have a welder in the family!

I'm well on my way to "Decrapifying" the driver's front corner of the engine bay. Since I had to dissect the wiring harnesses and move them out of the way, I had room to get into there and scrub some of the crud out. It's slow going, but I'll spend 15~20 minutes per night scrubbing away on it. I'll still have to sandblast and paint the areas with the surface rust, but it looks like that damage is highly contained to the area immediately under the battery tray. 

So that's "What's Up, Doc?" for the last week or so. Gonna get down to sub-zero temps over the coming weekend, and while there's snow in the forecast, I doubt we'll get much accumulation.

Be good to each other, and stay in Condition Yellow outside the home.