Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 08-03-2013, 10:53 AM   #1
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
Hydroboost unit

I'm trying to gravity bleed my brakes but can't get any fluid to come out of the front. Just out if curiosity I loosened the master cylinder from the hydroboost unit and it allowed fluid to flow. So is the pushrod to long or is the brake pedal linkage out of adjustment. It is a brand new hydro that instructed me to use the old pushrod.
__________________

__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-03-2013, 11:43 AM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
Quote:
Originally Posted by Bcollier9253 View Post
I'm trying to gravity bleed my brakes but can't get any fluid to come out of the front. Just out if curiosity I loosened the master cylinder from the hydroboost unit and it allowed fluid to flow. So is the pushrod to long or is the brake pedal linkage out of adjustment. It is a brand new hydro that instructed me to use the old pushrod.
Was the pushrod adjustable ? Sound like it is a little to long.
Can you contact the hydro boost unit supplier for guidance ?
__________________

__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-03-2013, 11:49 AM   #3
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
I just called Nappa, he didn't have any info so he said he would call the manufacturer Monday which really doesn't do a thing for me now
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-03-2013, 11:53 AM   #4
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
If your in a hurry , you could try , adjusting the pedal linkage ; BUT mark every thing so you can return it to the original position if necessary.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-03-2013, 12:03 PM   #5
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
Thanks, I may just try that. It's not that I'm in a hurry... Well maybe a little, I have been jacking with these brakes off and on after work and on the weekends for three weeks now!! I'm done with it, ready to be camping!! Lol!! My boat is in the garage waiting for the exhaust tube and engine to be put back in. Project # 2 of many. Yup, out last outing the boat sank, coach brakes locked up on the way home had to be towed and after we had been home for a week the tranny went out of my 01 F350!!
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-03-2013, 12:22 PM   #6
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
Oh , boy, and I thought I was having fun.
Spent 3 1/2 hours accessing a 22c O ring on my HEUI pump to stop a persistent oil leak. Had to modify 3 wrenches to complete the job. I now have the wrenches and extra O rings in my tool box , theory being, if you have spares you will never need them .
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-03-2013, 12:28 PM   #7
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
True true. Good luck !
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-03-2013, 01:49 PM   #8
Senior Member
 
Join Date: Nov 2011
Posts: 204
Quote:
Originally Posted by Skip426 View Post
Was the pushrod adjustable ? Sound like it is a little to long.
Can you contact the hydro boost unit supplier for guidance ?
Howdy, I have not replaced the hydro booster on mine. But you say your brakes locked up. Are you sure that the master cylinder was not the culprit???? I lost my brakes 3 times. Replaced everything BUT the hydro boost. Be absolutely certain you have a good flush on your fluid. It appears that your coach may have a little age. old fluid can be extremely expensive in the end. I do not know if a gravity flow is sufficient. I would want to be absolutely sure if I had done that much brake work. It would be a shame to have to repeat it again. I would be talking to someone smarter than I. My brake job ended up 2 tickets totaling over $3700. good wishes, old trucker
__________________
Old Trucker is offline   Reply With Quote
Old 08-04-2013, 01:56 AM   #9
Senior Member
 
sc3283's Avatar
 
Join Date: Aug 2011
Posts: 1,126
Bcoll, make sure your brake pedal is returning fully...many times pedal linkages get rusty,dusty,dirty and bind....not allowing pedal to return fully
__________________
96 Dynasty 36' that does NOT wander, thanks to RuppParts.com and their superior "poly" suspension bushings
sc3283 is offline   Reply With Quote
Old 08-04-2013, 02:02 AM   #10
Senior Member
 
stink's Avatar
 
Join Date: Apr 2012
Posts: 1,414
I would reinstall master to hydroboost and then remove linkage from brake pedal and see if you have fluid flow. This will isolate problem as pedal may be bound up or a brake light/cruise switch may be hanging up. The pushrod from hydroboost and master I don't think is adjustable but the rod from brake pedal to hydroboost is.
__________________
Dave and Laura & two cats
02 Discovery with Accord toad
retired auto rv tech and teacher, wife rt nurse
stink is offline   Reply With Quote
Old 08-04-2013, 06:22 AM   #11
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
The old master when put against the hydro would start to make contact with the pushrod before the two were seated together. Bench bled the new master again and put it up there, it was fine. We bled for quite a bit and got a lot better pedal but did notice that the pedal has some slip in it before it pushes the input rod into the hydro, that is today's project. I think she is getting real close !! Thanks everyone for their suggestions!
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-04-2013, 06:41 AM   #12
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
I meant to say the pedal has some slop in it not slip.
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-04-2013, 06:48 AM   #13
Member
 
Bcollier9253's Avatar
 
Fleetwood Owners Club
Join Date: Apr 2013
Location: Indianapolis, Indiana
Posts: 67
I was on the phone yesterday for about an hour with Dave78 Chief, we both had a hunch that the master was being partially held open and not allowing any fluid to get to the piston. That assumption was spot on. This guy sounds to be pretty knowledgeable in brake systems, I would suggest if anyone has problems give him a look.
__________________
Brad &Tish Collier
Indianapolis, Indiana
1991 Fleetwood Southwind 454 P32
Bcollier9253 is offline   Reply With Quote
Old 08-04-2013, 02:31 PM   #14
Senior Member
 
gemini5362's Avatar
 
Tiffin Owners Club
Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,078
I have gravity bled brakes on cars before and one of the things i forget every once in a while is to leave the master cylinder cap off while it is draining
. With the cap in place it does not seem to drain very well.
__________________

__________________
gemini5362 is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:15 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.