This will take you to the main site where there is history, technical information and other information on these cars.
This takes you back to the main page of the forums.
This is the control panel to change your password, information and preferences on this message board.
Click here if your lost your password or need to register on this message board. You must be a registered user to post. Registration is free.
Search this board for information you need.
Click here to buy cool Squarebirds mechandise.
Click here to support Squarebirds.org. For $20 annually receive 20mBytes webspace, a Squarebirds e-mail address and member's icon on the message board.
  #1  
Old 12-21-2013, 11:23 PM
Griffin Griffin is offline
Experienced
 
Join Date: Feb 19 2012
Posts: 172
Griffin is on a distinguished road
Default Checking the top hydraulics

Hi all

I just noticed today that there was a small puddle of fluid on the ground beneath where the pump for the convertible top is located in the trunk. The underbody in that area is moist also. My top is working fine but there is evidence of fluid here and there around the fittings. The shop manual says to operate the top and check for leaks and to use heavy duty brake fluid to top up the reservoir. Can anyone add to this before I go blundering in?

Best regards and Merry Christmas!!!

Mark
__________________
Never assume conspiracy when mere incompetence will explain things.
Reply With Quote
  #2  
Old 12-21-2013, 11:43 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,757
jopizz is on a distinguished road
Default

Mark

Most times the fluid leaks through the small rubber o ring that's around the shaft and comes out the end where the motor is. Try and feel around where the wires come out of the pump and see if it is wet there. If it's not wet there then feel around where the reservoir meets the motor and see if it is leaking there. There are also rubber o rings where the hoses connect to the motor. It could be leaking in any of those areas. I would also check and make sure that your pump has brake fluid in it and not transmission fluid. Many times if the pump was replaced transmission fluid was used instead. It will be red instead of clear like brake fluid.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #3  
Old 12-21-2013, 11:49 PM
Griffin Griffin is offline
Experienced
 
Join Date: Feb 19 2012
Posts: 172
Griffin is on a distinguished road
Default

Thanks John

Will do. The fluid on the ground is definitely clear rather than red and so I assume that it is brake fluid. Is it a big job to replace these o-rings?

Mark
__________________
Never assume conspiracy when mere incompetence will explain things.
Reply With Quote
  #4  
Old 12-21-2013, 11:57 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,757
jopizz is on a distinguished road
Default

It's not a big job replacing the o rings. It's more of a problem finding the correct size. I have a kit that has an assortment of o rings in all different sizes that I've been using for years. The pumps themselves are fairly easy to take apart and reassemble. I would make sure that it's the pump first and not a loose or worn hose or solenoid that's leaking.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #5  
Old 12-23-2013, 09:23 PM
Griffin Griffin is offline
Experienced
 
Join Date: Feb 19 2012
Posts: 172
Griffin is on a distinguished road
Default

Thanks John. This will now have to wait until after Christmas now. By the way, when topping up the pump with brake fluid, do you just fill the reservoir to the top?

Regards and Merry Christmas

Mark
__________________
Never assume conspiracy when mere incompetence will explain things.
Reply With Quote
  #6  
Old 12-23-2013, 09:59 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,757
jopizz is on a distinguished road
Default

When filling the reservoir make sure the top is up and fill it so that it's just about up to the bottom of fill hole. Then cycle the top up and down a few times after filling and loosen the screw to let any air out after each cycle.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #7  
Old 12-29-2013, 04:50 PM
Griffin Griffin is offline
Experienced
 
Join Date: Feb 19 2012
Posts: 172
Griffin is on a distinguished road
Default

Nothing is ever straightforward!!! I checked the fluid level in the top motor and it didn't require much to top it up. The motor and pump have been replaced at some stage and it now uses auto transmission fluid and not brake fluid as I initially thought. There is some dampness around the pump but no obvious leaks.

The puddle on the garage floor was not a red colour as would be expected but there's no evidence of brake fluid leaking and the master cylinder does not need topping up. Curiouser and curiouser. I'll keep an eye on things as I'm not convinced that the pump isn't leaking.

Mark
__________________
Never assume conspiracy when mere incompetence will explain things.
Reply With Quote
  #8  
Old 12-29-2013, 05:20 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,757
jopizz is on a distinguished road
Default

Where is the puddle? If it's not directly under the rear passenger side quarter panel then it's probably not the top pump. If it's in the rear area it can only be brake fluid, a leaking shock absorber, differential oil or fuel. I assume you didn't have the car out in the rain.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #9  
Old 12-30-2013, 08:16 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,080
simplyconnected is on a distinguished road
Default

Sometimes water condenses inside mufflers. (It always drips into the warm side.) Some mufflers have a small drain hole for this condensate to escape.

Put some cardboard under the car and let it catch whatever is 'leaking'. As the fluid absorbs and creeps, you can more easily tell what it is when you pull it back out for inspection.

Heavy gear lube will sit on top, water will kinda seep in, DOT-3 brake fluid will absorb then evaporate but leave a witness mark and trans fluid will look very oily and spread.

BTW, what kind of brake fluid is in your system? Is it DOT-3 or DOT-5? (You need to be sure about this.) If you're not sure, use an eye dropper and pull a few drops out of your M/C. Drop it in a bowl of water. If it floats on top, it's DOT-5. If it immediately mixes, it's DOT-3. Never mix different types of brake fluid. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #10  
Old 12-30-2013, 10:21 AM
Joe Johnston Joe Johnston is offline
Super-Experienced
 
Join Date: Dec 23 2008
Posts: 662
Joe Johnston is on a distinguished road
Default

Quote:
BTW, what kind of brake fluid is in your system? Is it DOT-3 or DOT-5? (You need to be sure about this.) If you're not sure, use an eye dropper and pull a few drops out of your M/C. Drop it in a bowl of water. If it floats on top, it's DOT-5. If it immediately mixes, it's DOT-3. Never mix different types of brake fluid.
And an easy way to remember this is the words "Five" and "Float" both begin with the letter "F". No reason to "F"orget!
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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 05:00 PM.

Driving, racing or working on cars can be hazardous. The procedures and advice on this website including the message board are opinion only. Squarebirds.org and its webmasters and contributors do not guarantee the correctness of the advice and procedures. The Squarebirds.org and its webmasters assume no liability for any damage, fines, punishment, injury or death resulting from following these procedures or advice. If you do not have the skills or tools to repair your car, please consult a professional. By using this site you agree to hold harmless the Squarebirds.org, its authors and its webmasters from any resulting claim and costs that may occur from using the information found on this site.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Any submissions to this site and any post on this site becomes property of Squarebirds.org . The webmasters reserve the right to edit and modify any submissions to this site. All material on this is site is copyrighted by the Squarebirds.org. Reproduction by any means other than for personal use is strictly prohibited. Permission to use material on this site can be obtained by contacting the webmasters. Copyright 2002-2016 by Squarebirds.org.