Dean picked up the differential today. Sounds like an incredibly good piece of machining, I know Dean was impressed. I'll let him explain the work that was done.
The spiders are new:
Thank you Bob T. for the carrier and pinion.
The Model K Runabout was guaranteed to go over 70 mph. Hopefully now the rearend ready for the test.
NICE!!! NICE!! Nice!! Nice!
Wonderful looking gear work. We are lucky there are folks who will do this. Nice to see them.
What's the diff ratio for these cars? Were there optional or aftermarket ratios?
Wonderful! It's good to see the progress, Rob. We're all looking to seeing and hearing it run.....
Thanks guys. Dean is working his tail off while I polish brass one-handed....
Constantine, the standard ratio was 3:1 with an option of 3.75:1.
Model K driveshaft, torque tube and hardware:
Just received the dual switches. Thank you R. V. Anderson:
A race against time. Dean is finishing the engine:
With one modification, no more 5.3 lbs. cast iron pistons.
Thank you Mike Bender....
Looking real nice. 15 days until the hill climb.
Hi Rob. All looks good from Australia. Even with that later chassis i still think you should put some springs under those engine bolts.
Can't wait to see it at the OCF Doug
About ready for the engine run in:
Thank you for all the updates! A quick scan of thread titles and I open these immediately.
Drive carefully, W2
What is the equipment attached by the belt? Is it to start the motor?
Garage made set up with electric motor and belt drive to the flywheel to rotate the engine assembly at low rpm for a period of time. Running in like that makes hand crank start easier as all the bearings are now freed up.
Ford did running in too, but mostly to burn in the Babbitt bearings. Big electric motors, with gages to determine by voltage when the engine was properly run in with lowest resistance to deem the bearings free enough.
Hey, Rob -- You could run a sawmill with that rig!
Wayne, my pleasure....
Paul, Dan T. hit the nail on the head. Dean said he uses this motor to run in fresh Model T rebuilds. He had to do some serious modifying, and said he found out he needed to run with only three tightened rods at a time (at first).
We won't have a starter, so with new rod babbitt, pistons/rings and valves we need to run it in well before we'll be able to hand crank.
Mike, run a sawmill with the run in motor, or the six cylinder engine?
We hope to have video of the run in process in action tomorrow.......
Great photos and up date as always. Is it possible from time to time to show the parts next to a Model T part or a ruler so we can see just how big they really are. I think a Model T piston next to the "K" piston would be interesting. Can't wait to see it all together again. Video with it running...can't wait.
Two artificial knees, a banged up shoulder...
Rob, sounds like you won't have the strength to crank up that big car. You better plan on donating it to a worthy cause, and I know just the cause to send it to.
Hope both of you are up and running soon.
I'll recycle a few comparison pics.
Not to worry. I'm just the right guy to crank her, I have more NOS parts than most people.......(you forgot the replaced hip)
Comparing T and K transmissions:
The T transmission weighs about 35 lbs., the K about 82 lbs. both the improved (26/27) T and K had a wider brake band than low and reverse.
Short (very) of the run-in:
Neat! Is there break-in lube or timesaver on the bearings for the run-in?
Interesting truss rods under the frame rails.
Dean is using time saver. The link below is of the engine today. It's getting quieter....
Henry Ford used truss rods on several of his racers, and seems to have carried over to the Model K. I suppose as a way to strengthen with as little weight as possible.
Ford's famous 999 and well known (at the time) 20 hp racer of 1904 both had similar support:
I meant to add this pic concerning Ford truss work. Ford still used external trusses with the 410 cubic inch Model T chassis racer, 1910-1913. I suspect the increased weight of the large engine and stress of racing and hill climbing required additional support, yet Ford wished to retain the Model T appearance. In 1911 Ford was fourth in wins of all foreign and domestic car makers primarily due to the success of this racer:
Lookin great Rob, Congrats on all the fine work! KGB
I would assume you took that last photo at the Henry Ford. The same car is at the Gilmore Museum. Wonder how similar they are?
The car at THF is the real thing, down to the 410 cu in engine. Unfortunately, like the K racer, it's not on display.
New carrier. This one should be bullet proof:
Thank you, T.J.
That is impressive!
What happened to the carrier in the first photos?
Wayne, yes, T.J. Is a young man who works a regular shift as a machinist, then works on piecework on the side. He spent a lot of his weekend doing this.
Richard, as it turns out, the replacement carrier and ring gear was a 3 3/4 : 1 ratio, while most K (including ours) came with standard 3 : 1 ratios. We didn't have the pinion, so didn't know it was the slower speed rear end (12 tooth instead of 15 tooth pinion). The ring gear on both are 45 teeth, however, the gear is carried in a different location on the carrier, and the pitch of the ring gear is different for each ratio. The page from a K parts book shows the difference. The parts appear almost identical, and we thought we had the correct carrier and ring until assembly, when they didn't quite fit
The new "tourabout" seat is finished. Now the 6-40 can be configured for two (trunk only), three (single rumble seat) or four passengers. Ford offered the rear double seat with the K roadster in 1908:
It is that darn Murphy fellow's fault again!
That seat looks pretty neat. I can hardly wait to see multiple photos of that incredible 6-40 in all three configurations.
Love it! Love it! Love it!
Look at the bright side, according to the price list your carrier only cost $16 to replace. Keep the up dates coming. I can't wait to see the finished product.
How did the machinist figure the correct dimension to set the depth of the ring gear? Did he have another to compare?
We had the original carrier, although it was broken, and had been repaired in the past, for dimensions:
Sounds like TJ is one crack machinist.
Yes, T. J. is a keeper. He is a young fellow in Lincoln, with a family, who is working on the side to get ahead (in addition to having a great job at a major shop). I'll try to get him to the Speedster Reunion next week.
Good news, after several tries we found a welder. I shoud have gone there sooner, but I tried a few others first. This shop is owned by a friend in another town who used to work on my farm equipment when it was old and broke often. As time went on, I was able to afford better (newer) equipment, and we didn't stay in touch.
Today, I went to his shop, and he took one look at the gear and said "I can do that." I asked how soon, and he said, "I have a big project bid due, can you wait until tomorrow?"
Another run-in video from Dean. If you listened to the others, listen how quiet it is now. The pan is on, and the run is about over.....
Running in with bands on:
It's getting there......