Honda CB750 Sandcast

General Category => "88 Model Distinctions" => Topic started by: kp on May 22, 2019, 07:22:47 pm

Title: Rear Brake Plate
Post by: kp on May 22, 2019, 07:22:47 pm
The early Sandcast backing plate was made using a sandcast process with later plates being diecast. Don't know at what frame number these early brake plate changed to diecast type. Even though the response when asking owners to check what they have is either very low or non-existent, I'll ask again. When you next have your rear wheel off or you are able to check, can you respond here and advise what type you have and your frame number. The attached photo shows the two types. Thanks
Title: Re: Rear Brake Plate
Post by: markb on May 23, 2019, 01:23:03 pm
Here’s the one that came off #97.
(http://cb750sandcastonly.com/coppermine/albums/userpics/10002/DSC09538.JPG)
Title: Re: Rear Brake Plate
Post by: Sgt.Pinback on May 24, 2019, 12:53:09 am
That early sandcast item has no casting date. Don’t know if the casting date came with the new plate but VIN 1983 has that date on the plate.
Title: Re: Rear Brake Plate
Post by: kp on May 24, 2019, 05:57:33 am
Correct, These are sans a date code. Bo suggests these may be unique to the solid "no hole" rear hub and he could be correct.
Title: Re: Rear Brake Plate
Post by: kp on May 24, 2019, 06:00:16 am
Here’s the one that came off #97.
Thanks Mark. We can always rely on you to post. Appreciated
Title: Re: Rear Brake Plate
Post by: Steve Swan on May 24, 2019, 01:35:39 pm
KP, as always, good stuff from you.  unfortunately, i'm not inspired to remove 232's rear wheel, but when i took delivery of it, it did have the era correct rear wheel on it.  Thanks to those who contribute to the threads KP posts.

The early Sandcast backing plate was made using a sandcast process with later plates being diecast. Don't know at what frame number these early brake plate changed to diecast type. Even though the response when asking owners to check what they have is either very low or non-existent, I'll ask again. When you next have your rear wheel off or you are able to check, can you respond here and advise what type you have and your frame number. The attached photo shows the two types. Thanks