Indian Tadpole

[fasteddy]

I have a stock 3D clutch as well as the modified one so I pulled them both apart and took photos so they can be compared. I'll post stock parts and the modified ones together and explain what was done.
Click on the photos to expand them to full size.

We all may need a date with Old Rosie before this is finished.

Steve.

 

[fasteddy]

This is the modified clutch. There is a roller bearing on the outside and a bronze bushing on the inside.

 

[fasteddy]

The stock clutch. The sprocket is mounted to the back of the clutch plate and clears the disk that activates the clutch

.

 

[fasteddy]

The modified throw out bearing and activator.

 

[fasteddy]

The unmodified throw out bearing. The modified bearing has bushings in it to reduce it so it fit the 3/4" shaft.

 

[fasteddy]

This is how and where the sprocket was mounted.

 

[fasteddy]

The stock clutch with the throw out bearing removed. Just realized this is a repeat.Sorry.

 

[fasteddy]

Ludwig,
Those are welcoming arms indeed. Your father was the bravest among the brave. Fine German engineering or not when the bombs went up, the engineering and the men disarming them went with them. I think I read somewhere that the Germans armed the bombs so that if an attempt was made to defuse them they exploded.

I worked with a chap years ago who lived in the East End of London and when he was 14 he and his younger brother would go out with their father at night with a bucket and a shovel picking up incendiary bombs that hadn't exploded. Then they had to run down to the disposal area and the bombs were put into a barrel in layers and covered with sand. All the while the streets and the building were on fire. After the bombing raid they went up to the roof of any building not burning and checked for bombs.

Looked up the Carvair. Impressive.

Steve.

 

[Tom from Rubicon]

I'm going to have to go out to the machine shop and give my 3 D a hard look.
Frosty Tom

 

[Ludwig II]

Stay in the warm and imagine it really hard.

 

[Tom from Rubicon]

Not a problem Ludwig, My shop has a Modine furnace. Thermostat set at 63F. 3D clutch turned up on our lower level, Near the woodstove burning warm and brightly (Canadian Drolet) . Anyway clutch om my lap beer by my side, and I can't figure how this darn thing works. Lot of help I am.
Frosty Tom

 

[Tom from Rubicon]

Steve, the most obvious deviation of the original is the..Rotating Actuator is find number 12 on the exploded view drawing. One Rotating Actuator is required per clutch assembly.
It is a three ball rotating cam. Is that your hack or his?
To say I was surprised at how the clutch basket was mounted to the sprocket. Another question. Did the FHCS (flat head cap screws) need grinding down?
I need more information about your clutch set up. I just got done looking at their video.

Warm regards,
Frosty Tom

 

[indian22]

Took my eye off this thread for a second and you guys ran off and left me. I loaned my 3 D out to a fellow for rest world testing on a 20 h.p. plus kart rig and it's unlikely he'll give it up! It's been impressive after quite a bit of abuse, I did look it over after it came in but actually Steve your photos are really my only reference points. Nothing really jumps out at this point in the modifications made by your clutch guy or yourself...dry clutch is a pretty simple device which leads me to think a problem in clearance/tolerance is in play/engage, disengage, run & repeat...…

Love me some war birds and flyers... especially allied, but hate a bunch on war!

Rick C.

 

[fasteddy]

To start off here's the video that started me on the clutch modification

Steve.

https://www.google.com/url?sa=t&rct...=Yx81T7GPtOs&usg=AOvVaw3GNAGv1sy1It8qvKmErAkV

 

[fasteddy]

Frosty Tom,
I take it you mean the screws on the sprocket. They weren't seated perfectly and they hit every so slightly as the sprocket turned. The sprocket could only be mounted to the back of the clutch basket in that manner.

Steve.

 

[fasteddy]

Hi Rick,
I worked for a chap who was in the Marine Corp in Vietnam in1969 doing search and destroy missions along the DMZ. He said he described his time there as a interesting walk in the jungle punctuated by periods of extreme terror.

When Brian modified the clutch he machined away the center that mounted on the engine shaft and installed a bearing on the outside of the clutch basket and a bronze bushing on the inside to allow it to spin on the jack shaft. That part works well.

I just jury rigged up something to activate the clutch and it disengaged properly. The problem is that when I activate the clutch the activator moves away from the clutch basket instead of the other way around. I have a bunch of bits and pieces to see if I can stop it from doing that.

As Mr. MacDonald the master furniture refinisher I started out with when I was fourteen said in his rich Scot's brogue when I hit my first road block and couldn't see a way out, do you like Sherlock Holmes Laddie. When I said yes he said then you'll love this mystery then and to follow the clues.

The clues are there. I just have to follow them.

Steve.

 

[Tom from Rubicon]

OK I'm on page 115 of this thread Steve.
And this just came to mind, My wife likes to say " You can never have enough Steve's " it's true. I digress sorry.
Page 115 photos without the band and square tube actuator.
3D's video says to draw the actuator towards you and locking it in place. Does your chain tensioner system bracket allow you to do that?
I would give a nickel that Brian would have posted more detail photos of his Harley tribute.
Tom

 

[indian22]

I'm with you on that wish Tom. It is a sweet build & video....but too brief to learn much of the clutch function.

Rick C.

 

[fasteddy]

Tom,
Both of my former wives said they had one Steve too many. I wish Brian had posted more photos as well.

I have the first part figured out. The bronze bushing I had on the outside of the actuator appears to belong on the inside. The bronze bushing has a ring turned on one end. This makes the actuator stand away from the sprocket and makes sense since this will turn as it activates the clutch.

I'm not sure if I can lock the actuator in or not. I'll look at 3D's web sight to see what they mean.

The now outside bushing is steel but it seems to be too long and as the actuator turns instead of pushing the clutch plates apart it moves outwards on the steel bearing. I'll go out to the garage after supper and drill out a heavy washer and see if I can take up the slack.

Just have to follow the clues.

Steve,

 

[fasteddy]

Went out to the garage to cut a washer for the clutch to act as a shim to keep the actuator from moving instead of the clutch it's self. Three holes saws to cut the center hole and every one of them sharp as a box of razors. The hole saw to cut the outside barely marked the metal. Run to Home Depot tomorrow the replenish the parts needed list. I think I hear my wallet weeping at the thought.

Need supplies for another project and some things for the electric tri car as well. Winter such as it is is here so may as well hunker down and get at it. Silverbear and I are plotting this summers Bike Camp to finish up his projects.

I had hoped that my son would make it out for Christmas and I could lean on his fabrication skills but he's too busy and he's opening up a motorcycle repair shop.

I told he and his sister when they were young that good things happen to you if your a good person. One of his friends fathers passed away and his wife told my son she wanted him to have his machine shop that was set up in the garage and to take it away, free.

The dad was head engineer for Super Winch for twenty five years. I wonder what he was given.

Steve.