I will commit to one set of exhaust.

THANK YOU, ANDY, for your support !

Posted by "Frampton" Guest

I was wondering if someone can bring me up to speed as to how many there were and where they were used. How hard are they to come by and what kind of finish is being used in restorations for the assorted nuts and bolts. Thanks.... Steve

Posted by "Guest" elisant1

As a collector and restorer of other brand bikes I've found the only logical answers are always financial. I don't know when wrinkle tank production stopped. From the anicdotle evidence I've seen it's the mid to low teens. I can see a wrinkle tank maybe getting lost in the shuffle and be seen on a later tank. I just don't believe non wrinkles ever came off the line on sandcasts. Company's tend to use all of their inventory. I really doubt they would be manufacturing from 2 sources at the same time. Or saving the wrinkle tanks for later bikes. Companies use present stock first. Dealers would replace defective,damaged parts,etc... with what was on hand. This has been going on since the first cars and bikes were built. Dealers had no eye toward collectability. Just profits. I bet most dealers and all consumers at the time didn't know wrinkle from wankle. Have any of you sandcast experts ever come across NOS wrinkle tanks? I'd be surprised if many spare wrinkle tanks were ever delivered, as it seems Honda was having a hard enough time keeping up with production at that point. Paint is usually the slow point in production. There were very early tanks made as Andy said that had more capacity. Were these ever recalled? I restore old HDs and Indians so have much more knowledge of them than Hondas. But companies never change,it's all about the dollar. First year, 1936, Knuckleheads went through many by the number changes. Early 36 would have many differences than late 36. Does this remind you of anything?

Andy, It's XXXX and some Grog that make the Aussies yearn for their girls. Or is the New Zealanders that can't be trusted with sheep. Us Yanks are to busy tipping cows. Gave one $5.00 the other night. Nothing!!!!  Eli   

Posted by "Guest", Bob Brooks

What Vin# range are these first OZ Bikes, They used wrinkles into diecast production for several thousand units as well as a lot of other parts. Nobody wants to admit that a tank was replaced if it is going to greatly affect the value in a sale situation. I have bought several bikes of all types from original owners that claim their bikes were never wrecked, yet they had repaired fork stops, bent forks and frames!
I know a New Car Dealer Painter, and he admits that even brand new cars are touched up if they are damaged in transit, and nothing is ever mentioned to the eventual buyer.
It's possible the tanks were even replaced by the dealer before the sale if somehow they got a scratch, dent etc.

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"Sandcast" refers to the FIRST 7,414 CB750 Honda motorcycles produced from early 1969 until September, 1969. "Sandcast" refers to the process by which each of the aluminum crankcase halves were cast. Literally, the molten aluminum was cast into a mold using a special sand formulated for the casting process. This casting process, using a sand mold, was a hand process, of the gravity type. The mold was created by packing the sand around a core, sometimes made of wood. After the sand was packed around the core, the core was removed from the mold by separating the mold, which was designed in two halves. "Sandcast", as generally referred to by "sandcast" enthusiasts, refers to the rough finish of the outer surface of each crankcase half. Please read carefully, contents of the Website. It can give you alot more info about what a "sandcast" is. Of final note, engine crank cases beginning with number 7415, used a mold not made of sand and the molten aluminium was pressure injected into this mold. These cases after 7414, had a very smooth finish.