Tuesday, November 23, 2010

Slumping bottle and other stuff

Sue had a wine bottle from a wedding shower we thought to slump and make serving tray or at least an art piece for the couple.

Bottle just fits
Partway done. Glass melts around 1475 degrees and the slump once it starts goes pretty quick. We used the color seen through the peep holes to guess a 1000 hold and to see when the slump started. To stop the slump opening the lid periodically to drop the temp to 1000 again and then over night to anneal.
Turned out OK or at least it is not a puddle or shattered.
Aerial refueling

Check this out. Look at how she flips the switches to change the pickup configuration and the sound. It's a Parker guitar with a piezo bridge and two humbucker pickups

Wednesday, November 10, 2010

Testing Corvette style "windowed" primary governor weights

Modified the primary weights to have a "window" like GM did for Corvettes with 700R4 transmissions. This was a removal of about 20% if the weight.
Windowed weight and a B&M kit.
Installed for testing, I found the effect to be very small. If anything it may make the light throttle shifts later. Hardly noticeable..... real changes need to be made with secondary weights and springs.

Tuesday, November 9, 2010

Governor weights

Drilled a 1/4 hole in the primary weights and could not tell any difference in how the gov acted.
Swapped in this lighter weight and there was a slight difference. Mostly the 2-3 shift was later.
Parts swapping
A few parts. Spring color seems to be somewhat random, same color different spring. Some springs are wound left hand and some right hand. These are random turbo hyramatic governor springs and weights from the junkyard except the tagged spring. The tagged spring was behind the vacuum modulator spool, took that out in 2007. Removing it gave more range on the vac modulator.

Thursday, November 4, 2010

American Gothic

Dubuque Iowa, American Gothic statue. Made of fiberglass

Friday, October 29, 2010

TH 425 governor cans part 6

A few chips
GMC outside
New Driven gears installed. Notice two styles of shafts. The two on the left are different then the three on the right. The spools are different also.
Nylon gear sets the operating axial position (runs against the dowel in the trans case). The gear with the most wear was .050 different than new. shoulda used the camera flash
Brushing out the bore,
Some of these needed a good wire brushing to get them clean
Cleaning out an orifice in the valve spool

Saturday, October 23, 2010

TH 425 Governor cans part 5

3 1/2 schedule 80 pipe to make seal retainers out of. Pretty close to what is needed I.D and O.D. This stuff doesn't machine as good as some other, gummy like.
Chuck it up short.
Boring to fit over the can top.
Parting, out kinda far so bull nose center to stiffen it up.
Going slow here, no support.
Ring and can top
How it fits on, hold an O ring seal and has a lip to get a screwdriver in to pop it apart.
Together with a slot for prying it back open. Need to tack weld the retainer on. Ripe for weight and spring changes...tune it like you want.
Bail holds it together and in the hole.
can parts.
how the originals fit.

parts ring out.

Friday, October 22, 2010

TH 425 Governor cans part 1

Leaded steel to make governor cans out of. Machines nice.... lots of chips to come, About $10 a linear inch delivered.

TH 425 Governor cans part 2

Old school calipers
Parting, Used a power hacksaw to complete the cut
Dial in and center drill after a cut
Last two top to top
cutting cans apart

TH 425 Governor cans part 3

Patients. These are Turbohydramatic 425 transmission governors.
Last two just a stub left
all that is left over
Blanks and a sample
Zero check

TH 425 Governor cans part 4

Oil it!
Ready to machine the top
Some done. These are the new bottom part of the cans and will seal with an o ring to the original tops. The original was crimped together and not serviceable.