Go Back   The Supercar Registry > General Discussion > Technical & Restoration


Reply
 
Thread Tools Display Modes
  #41  
Old 09-12-2017, 04:31 AM
Kurt S Kurt S is offline
Yenko Contributing Member
 
Join Date: Aug 2000
Location: Ann Arbor, MI
Posts: 2,963
Thanks: 2
Thanked 601 Times in 296 Posts
Default

The shot of molten aluminum is rammed into die under high pressure, hence pressure cast.
Wheels are gravity cast.

Bring back memories (and smells!) of working in diecast - rows of pressure cast machines pumping out throttle bodies, carbs, etc.
__________________
Kurt S - CRG
Reply With Quote
  #42  
Old 03-28-2018, 05:43 PM
CamarosRus CamarosRus is offline
Senior Member
 
Join Date: Apr 2000
Location: Auburn,WA (between Sea&Tac)
Posts: 2,477
Thanks: 46
Thanked 71 Times in 44 Posts
Default

Mark or ???

With my (new to me) Mr DeBurr shaker machine. It came with what appears to be
white ceramic media.

What media do you know of might be best for cleaning/refinishing aluminum castings
and then there is the question of rough sand castings and smooth die castings like valve covers ????

And what about the liquid fluids in each case

Thanks
__________________
Chuck Sharin
[email protected]
Auburn,WA (30 miles South of Seattle)
70 Camaro R/S Z-28, L-78, R/S SS
69 Camaro COPO "recreation"
Reply With Quote
  #43  
Old 03-28-2018, 06:53 PM
Canuck's Avatar
Canuck Canuck is offline
Yenko Contributing Member
 
Join Date: Jun 2005
Location: Vancouver BC
Posts: 1,866
Thanks: 215
Thanked 650 Times in 215 Posts
Default

We have a parts tumbler in our shop and have used it for small parts.
We used a local shop for cleaning larger items like the trans casein the photos. The process is called vapor blasting and the outcome is amazing, items like a trans case have a lot of small crevices that the larger media from a Little Scrubber cant get into.





__________________
1971 W30 convert, triple green,second owner.
1971 W30 Convert, special order Rally red, under resto.
68 Charger R/T, Bullitt Replica
68 Camaro Z28,Corvette Bronze,Houndstooth
www.vancouverclassiccars.com
Reply With Quote
The Following 2 Users Say Thank You to Canuck For This Useful Post:
McCune (04-04-2018), SS427 (03-28-2018)
  #44  
Old 04-03-2018, 08:25 PM
Jonesy's Avatar
Jonesy Jonesy is offline
Yenko Contributing Member
 
Join Date: Mar 2002
Location: Duluth, Minnesota
Posts: 2,987
Thanks: 271
Thanked 694 Times in 438 Posts
Default

Wow, those trans cases turned out real nice!!
__________________
1969 Camaro RS/SS Azure Turquoise
1969 Camaro Z/28 Azure Turquoise
1984 Camaro z/28 L69 HO 5 speed
1984 Camaro z/28 zz4 conversion
1987 Monte Carlo SS original owner
Reply With Quote
  #45  
Old 04-04-2018, 12:09 AM
McCune McCune is offline
Yenko Contributing Member
 
Join Date: Apr 2017
Location: St.George,Utah
Posts: 475
Thanks: 420
Thanked 271 Times in 111 Posts
Default

I use glass bead then I shot peen tumble. The cases do not finger print and any dirt or oil will just wipe clean. Those Vapor blasted cases look great.
Attached Images
   
Reply With Quote
  #46  
Old 04-04-2018, 12:53 AM
CamarosRus CamarosRus is offline
Senior Member
 
Join Date: Apr 2000
Location: Auburn,WA (between Sea&Tac)
Posts: 2,477
Thanks: 46
Thanked 71 Times in 44 Posts
Default

Jim, Your muncie looks great. I have a few questions.

1) Do you wire the case, tailhousing etc to the "cage" in your shot blasting machine
vs allow it to "tumble" in the slow moving cage ???

2) Been too long since I did the parts in my pics so honestly dont remember,
but wont the shot (blasting) hurt the smooth skin on the die cast tailhousing and side cover...where as the main cast is a "rough" service sand casting..... Intake = Sandcasting......Alternators, Valve Covers = Die Cast

3) I want to try that Aluminum Star media (or whatever Alum media I wind up buying) in my "new" MrDeburr shaker on Dia Castings

Site Software sucks that you cant upload a 150kb picture
Attached Images
 
__________________
Chuck Sharin
[email protected]
Auburn,WA (30 miles South of Seattle)
70 Camaro R/S Z-28, L-78, R/S SS
69 Camaro COPO "recreation"
Reply With Quote
  #47  
Old 04-04-2018, 04:08 AM
McCune McCune is offline
Yenko Contributing Member
 
Join Date: Apr 2017
Location: St.George,Utah
Posts: 475
Thanks: 420
Thanked 271 Times in 111 Posts
Default

Hey Chuck, I should wire to the cage but usually don't. The casting doesn't lose much of the sand casting but if it does,it is so much nicer than the old stained case. My machines do not add any heavy texture to the smooth cases. I have been doing a lot of Muncie cases for a local builder and he as well as his customers are very happy with the look of my Muncie cases.

I have had some problems with aluminium heavy duty Delco alternator fans getting distorted form the shot peen, so I paint those. That is the only part I have ever noticed getting screwed up in the shot peen machine.

I still have not located the star media, I think it is buried in a alternator or starter barrel.It will turn up someday.
Reply With Quote
  #48  
Old 08-20-2022, 03:39 AM
CamarosRus CamarosRus is offline
Senior Member
 
Join Date: Apr 2000
Location: Auburn,WA (between Sea&Tac)
Posts: 2,477
Thanks: 46
Thanked 71 Times in 44 Posts
Default

to the top
__________________
Chuck Sharin
[email protected]
Auburn,WA (30 miles South of Seattle)
70 Camaro R/S Z-28, L-78, R/S SS
69 Camaro COPO "recreation"
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 10:39 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.