Topic: Early Sandcast Found......

[CycleRanger]

Nice setup. I was was wondering what you were going to create.

[PeWe]

Look very good, John!
You can use that with future tanks when you have got the dent bending skill

[BenelliSEI]

Thanks! It’s kind of evolved from the material I had lying around!

[BenelliSEI]

Finished up hold down fixture today. The rear clamping mechanism was a bit of a challenge, but it turned out OK. The whole thing was such a mish/mash of scrap bits that I finished it off with a coat of black (hides a lot of evil) paint! Photos tomorrow and then the tank goes off to the “Dent Doctor”.

Next item will be to get all the engine covers of to the polisher. The weather is quickly becoming nice enough to get the engine painted. I do this outside, so need a nice day.

[BenelliSEI]

Look very good, John!
You can use that with future tanks when you have got the dent bending skill

Per….the “throat” of the Sandcast “wrinkle tank” must be a lot narrower than the later models. When I tried a cb750K1 tank on the centre wedge piece, it slides right back over it. I’ll need to cut a new piece for that if I want to mount the later ones.

[HondaMan]

Look very good, John!
You can use that with future tanks when you have got the dent bending skill

Per….the “throat” of the Sandcast “wrinkle tank” must be a lot narrower than the later models. When I tried a cb750K1 tank on the centre wedge piece, it slides right back over it. I’ll need to cut a new piece for that if I want to mount the later ones.

In a word, yes: the tanks got wider and lower in the 3/71 'Kaizen' of the K1 series. It wasn't published much, but we noticed right away when we sat on the newer bikes: you couldn't see very much of the engine when you sat on the new bikes. The tanks blocked the view: you could read the "SOHC" casting letters on top of the cam covers on the earlier bikes, but not after that.

[BenelliSEI]

Completed wrinkle tank “hold down” fixture. Turned out pretty well.

[BenelliSEI]

The tank is pushed forward, tightly on a 1.5” high, large centre wedge block and then clamped at both ends. There is a “fin” underneath (full length 2x4” lumber glued and screwed) that can be clamped in a vice or WorkMate style bench.

The back end is a 2 X 4” with a 1/4” ply centre bit glued in. The tank strap bracket sits in it solidly. The top clamp piece screws down hard and really fastens down that end.

[grcamna2]

John,the right/rear of your tank looks like the seat pan was rubbing hard into the tank 

[newday777]

John,the right/rear of your tank looks like the seat pan was rubbing hard into the tank 

Might have happened after the original foam in the seat degraded and the slop in the seat cover started rubbing the tank with movement on the seat by the rider hitting the twisties!
😎😎

[seanbarney41]

This gives me some idea's.   have been mulling over the idea of picking up some paintless hammers and stuff and getting started on the practice needed.  Building that hold down is the hardest part of getting started.

[BenelliSEI]

 

John,the right/rear of your tank looks like the seat pan was rubbing hard into the tank 

Yes….. has some “patina” for sure. Determined to leave all the original paint finish.

[BenelliSEI]

This gives me some idea's.   have been mulling over the idea of picking up some paintless hammers and stuff and getting started on the practice needed.  Building that hold down is the hardest part of getting started.

Go for it! It took a few days, but really clamps it solidly.

[BenelliSEI]

Vapour blasted covers, packed and ready for the polisher. Includes the very early “nine hole clutch cover”. Headed there tomorrow.

Bead blasting the original seat pan next. It’s a much heavier gauge steel than later bikes. As a result, I didn’t break a single one of the sharp little tabs that retain the cover (so far!).

[BenelliSEI]

Finished cleaning the motor. Have to tape up some old covers and it’s ready for paint. The weather has to warm up a bit and stop raining. I want to paint outside!

[denward17]

John, you are a busy man!

Waiting on some decent weather for painting outside myself, nice today but very windy.

[grcamna2]

John, you are a busy man!

Waiting on some decent weather for painting outside myself, nice today but very windy.

I can relate to that..  Wind  .
The stuff never seems to quit out here.
I want to finish clear my tank w/ 2K clear.

[MauiK3]

Davis is getting a lot of rain? Wow, I don’t recall it being particularly wet when I lived there.  (2000 to 2007)

[grcamna2]

Davis is getting a lot of rain? Wow, I don’t recall it being particularly wet when I lived there.  (2000 to 2007)

Yeah man    I Need more dry weather;I've got bikes to work-on and ride. 

[BenelliSEI]

John, you are a busy man!

Waiting on some decent weather for painting outside myself, nice today but very windy.

Den…. I have a deadline for this one now and we start racing in two weeks. Need to keep moving ahead!

[PeWe]

Wet weather is no insects nor  dust.
A party tent or a simple tarp roof, +15C. Painting must be OK
Unless very windy.....

[BenelliSEI]

Wet weather is no insects nor  dust.
A party tent or a simple tarp roof, +15C. Painting must be OK
Unless very windy.....

Per…. 03.0 C here today. May have to wait a little longer.

[PeWe]

Have over +15C now.
First ride within an hour

[BenelliSEI]

Have over +15C now.
First ride within an hour

Watch out for dirty roads and enjoy!

[HondaMan]

That's a real fine tank-holder, B. Very cool!