|
|
| Re: [GMCnet] New production OEM brake master cylinders problem [message #273672 is a reply to message #273671] |
Sat, 14 March 2015 09:56   |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
Rob,
I just passed that information to Jerry Holloway, who'd just called to say
he's going to buy a new MC to replace the rebuilt one with which he's been
unable to bleed his brakes.
It's probably an optical illusion, but it looks to me as if the modified
flange is not flat (nut bearing surface parallel to the mounting face). If
so, the stud will be adversely loaded when the nut's tightened -- could be
almost as bad as insufficient threads.
Be careful when grinding those flanges!
Ken H.
On Sat, Mar 14, 2015 at 10:10 AM, Rob Mueller
wrote:
> G'day,
>
> Here is a link to an album showing a SERIOUS problem with new production
> OEM brake master cylinders.
>
> http://www.gmcmhphotos.com/photos/g6753-new-oem-brake-master-cylinders.html
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: [GMCnet] New production OEM brake master cylinders problem [message #273673 is a reply to message #273672] |
Sat, 14 March 2015 10:18 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Ken,
I was wondering who was going to spot that, it is an optical illusion; I've noted in one of the photos that I measured the flanges
from all directions to verify it was flat. It's not PERFECTLY flat but it's not off enough to cause a problem.
Dave machines the flange.
Regards,
Rob M.
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Saturday, March 14, 2015 9:57 AM
To: gmclist
Subject: Re: [GMCnet] New production OEM brake master cylinders problem
Rob,
I just passed that information to Jerry Holloway, who'd just called to say
he's going to buy a new MC to replace the rebuilt one with which he's been
unable to bleed his brakes.
It's probably an optical illusion, but it looks to me as if the modified
flange is not flat (nut bearing surface parallel to the mounting face). If
so, the stud will be adversely loaded when the nut's tightened -- could be
almost as bad as insufficient threads.
Be careful when grinding those flanges!
Ken H.
On Sat, Mar 14, 2015 at 10:10 AM, Rob Mueller
wrote:
> G'day,
>
> Here is a link to an album showing a SERIOUS problem with new production
> OEM brake master cylinders.
>
> http://www.gmcmhphotos.com/photos/g6753-new-oem-brake-master-cylinders.html
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] New production OEM brake master cylinders problem [message #273712 is a reply to message #273710] |
Sat, 14 March 2015 23:05 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Wally,
Thanks for the info.
I bought the Raybestos master cylinder because Dave noted they were the only company still making them in the USA. When it arrived I
called him and told him that was no longer true and he was most disappointed.
Dave is a died in the wool, true blue, GM guy, having to buy parts for GM vehicles made in China bothers him a great deal as he
worked for GM his entire career.
Regards,
Rob M.
PS - Click on the bottom photo in the Amazon ad and you can see MADE IN USA cast into the side of the master cylinder!
-----Original Message-----
From: Wally Anderson
Rob, I've pitched the box and the master doesn't have any origin or even Delco on it. Amazon puchase.
http://www.amazon.com/gp/product/B000C9E9NI/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
I assumed Delco brand would be good stuff. After reading Amazons description they say Delco stuff is built by "partners"
--
Wally
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
|
|
| Re: [GMCnet] New production OEM brake master cylinders problem [message #273725 is a reply to message #273677] |
Sun, 15 March 2015 10:22 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Matt,
Dave told me that he has purchased new OEM master cylinders from a number of different manufacturers and they all have the same
problem with the flange.
Regards,
Rob M.
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Matt Colie
Sent: Saturday, March 14, 2015 11:03 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] New production OEM brake master cylinders problem
Rob,
Was this the part the Raybestos crosses to the OE part number?
Or just the closest that they have?
Should we bitch at Raybestos?? They might not even know that they are selling junk. (I have know this to happen when nobody
complained.)
Matt
USAussie wrote on Sat, 14 March 2015 10:10
> G'day,
>
> Here is a link to an album showing a SERIOUS problem with new production OEM brake master cylinders.
>
> http://www.gmcmhphotos.com/photos/g6753-new-oem-brake-master-cylinders.html
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> USAussie - Downunder
--
Matt & Mary Colie - Members GMCMI, GMCES
'73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] New production OEM brake master cylinders problem [message #273974 is a reply to message #273943] |
Wed, 18 March 2015 18:57 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Bob,
Thanks, but don't applaud too hard for me I was only Dave Lenzi's messenger! He's the guy that discovered this but he's way to busy
supporting us with high quality hardware to post to the GMCnet!
Regards,
Rob M.
-----Original Message-----
From: Bob de Kruyff
Rob, we get off on tangents with these threads but I think you have alerted us to a big deal here.
Bob
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
