Honda CB750 Sandcast

The Restoration Shop => Chrome - Anodizing and Other Metal Finish Procedures => Topic started by: Marcello Tha on October 30, 2013, 08:11:28 pm

Title: Springs
Post by: Marcello Tha on October 30, 2013, 08:11:28 pm

Rear shock springs can be rechromed without losing its characteristics?

Marcello

Title: Re: Springs
Post by: Marcello Tha on November 05, 2013, 12:58:01 pm

Someone could help?

Marcello

Title: Re: Springs
Post by: Steve Swan on November 05, 2013, 06:35:05 pm

hydrogen embrittlement occurs in high strength steels such as spring steel resulting from plating process.  any good chromer will know this and will heat treat the parts within 4 hours after plating to get the hydrogen out of the steel.  if heat treating is not done, the parts will break when back in operation.

Title: Re: Springs
Post by: Sgt.Pinback on November 06, 2013, 12:38:45 pm

Hi Marcello,

can´t help.

But I found a set of springs in one of my spare part boxes I got with the bike.

I am not sure if they belong to my KO

They look pritty NOS.

Can you please check if they are correct? Overall lenght is around 21.7 cm

I count  16  "steps" (whats the correct word?)


(http://i1077.photobucket.com/albums/w461/Uli911/CB%20750/DSCN05161_zps9e04c87b.jpg) (http://s1077.photobucket.com/user/Uli911/media/CB%20750/DSCN05161_zps9e04c87b.jpg.html)

Title: Re: Springs
Post by: Marcello Tha on November 06, 2013, 04:55:45 pm

Yes, they are correct.

Marcello

Title: Re: Springs
Post by: Marcello Tha on November 06, 2013, 05:24:01 pm

Quote from: Steve Swan on November 05, 2013, 06:35:05 pm

hydrogen embrittlement occurs in high strength steels such as spring steel resulting from plating process.  any good chromer will know this and will heat treat the parts within 4 hours after plating to get the hydrogen out of the steel.  if heat treating is not done, the parts will break when back in operation.

Thanks Steve.

Marcello