This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Other Topics > Shops, Barns, Varmints, and Trucks
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


HELP!!! Bendix hydrovac

 Post Reply Post Reply
Author
Message
SteveM C/IL View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 7909
Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Topic: HELP!!! Bendix hydrovac
    Posted: 23 Nov 2022 at 11:02pm
There's a ton of experience on this board. I have a 'fresh" rebuilt (Cardone) hydrovac to put on my 73 C60  grain truck. Problem is they didn't orient the back half of the can with the front half so the mounting brackets don't square up. It has a welded bracket on the back half of booster can which bolts to bracket on frame rail. The front end of the cylinder has a angled threaded boss which bolts to a second frame rail bracket. They are supposed to be in the same plane and are not! Can I loosen the clamp around the diaphram and slip it to position without damaging anything? Very difficult to find any info on these things. On the one hand I should send it back but if you knew the back story you'd understand why I'm reluctant to do that. Any help appreciated.
Back to Top
Sponsored Links


Back to Top
DMiller View Drop Down
Orange Level Access
Orange Level Access


Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 29233
Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2022 at 6:09am
Would send back, diaphrams in these are not all that robust, could wrinkle or tear it.
Back to Top
KJCHRIS View Drop Down
Orange Level
Orange Level
Avatar

Joined: 21 Dec 2015
Location: WC Iowa
Points: 804
Post Options Post Options   Thanks (0) Thanks(0)   Quote KJCHRIS Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2022 at 9:46pm
I replaced quite a few hydrovacs on GM / IHC trucks built in 60's to mid 80's. Only once tried to do what you're thinking of, it failed shortly after. Rebuilder refused to warranty, said it'd been tampered with. Employer got to buy it wasn't happy with me. 
 I'd do what DMiller says, take it back & have them get 1 that fits as delivered to you. 
AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B,
Back to Top
Coke-in-MN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 12 Sep 2009
Location: Afton MN
Points: 41160
Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2022 at 12:43pm
Last 60 series Viking cabover I did the brakes on I wnt through 3 boosters and none would work right . Went to a junk yard and found one on a truck that still had brakes that felt like they worked - pulled the unit and it worked fine for the 3 years I kept the truck , and price was $20 for the used unit, lot cheaper than the rebuilt . 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
Back to Top
SteveM C/IL View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 7909
Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 27 Nov 2022 at 10:04pm
Seen a youtube of a guy who didn't know anything about what he was doing take one apart. The diaphram looked big and simple pinched at seam like an airbrake pancake.....Lets just say it's working for now....
Back to Top
jaybmiller View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 21327
Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 28 Nov 2022 at 6:34am
had to google it.... but for sure I'd send it back !!!
brakes are kinda important.....

Whoever rebuilt it didn't reassemble it right.

crazy thing is 'monekywrench' sells them for $220, AmazonCanada $1000 !!
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water
Back to Top
HudCo View Drop Down
Orange Level
Orange Level
Avatar

Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3236
Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 30 Nov 2022 at 10:26pm
make sure your rear brakes are adjusted up or that will cause them boosters to ack  like they dont work somtimes
Back to Top
200Tom1 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 03 Jun 2019
Location: Iowa
Points: 1114
Post Options Post Options   Thanks (0) Thanks(0)   Quote 200Tom1 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2022 at 12:09am
Hudco. +1 on that 1.
Back to Top
SteveM C/IL View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 7909
Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2022 at 9:07pm
Im betting they could use an adjustment. Sounded like plenty of movement inside there while helper pumped and I bled.
Back to Top
DMiller View Drop Down
Orange Level Access
Orange Level Access


Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 29233
Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 04 Dec 2022 at 7:11am
Really need to be up on adjust before bleed them, learned that forty years ago.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.078 seconds.


Help Support the
Unofficial Allis Forum