Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN









Search Auto Parts

1985 Ford F-250 Clutch pedal staying on the floor


  Email This Post



scottyboy1973
Novice

May 30, 2012, 4:01 PM

Post #1 of 20 (4512 views)
1985 Ford F-250 Clutch pedal staying on the floor Sign In

Got ready to drive. Pushed in the clutch and heard a snap. push in the clutch and the pedal is staying on the floor. Have changed the clutch master cylinder and the slave cylinder. Dont Know what else to do.

1985 ford f-250 7.5 liter 460 with about 220000 miles.

any help would be greatly appreciated...


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 30, 2012, 4:13 PM

Post #2 of 20 (4503 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Clutch fork loose down on the transmission?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scottyboy1973
Novice

May 30, 2012, 4:26 PM

Post #3 of 20 (4493 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

No its not loose at all..


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 30, 2012, 4:33 PM

Post #4 of 20 (4488 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Clutch fork move if you press down on the pedal?

Also check the clutch pedal and make sure it moves the master cylinder push rod

Did the old master or slave blow out or was low on fluid?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scottyboy1973
Novice

May 30, 2012, 4:46 PM

Post #5 of 20 (4477 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Clutch fork is not moving. clutch pedal moves master cylinder push rod, but not the slave cylinder push rod. changed both cylinders trying to fix the problem, but didnt seem to help.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 30, 2012, 4:47 PM

Post #6 of 20 (4475 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Bleeding is a pain on those.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scottyboy1973
Novice

May 30, 2012, 5:24 PM

Post #7 of 20 (4457 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

I believe I have done the bleeding correctly.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 30, 2012, 5:37 PM

Post #8 of 20 (4449 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In


Quote
I believe I have done the bleeding correctly.


Not if you still don't have a pedal. These can be very, very difficult to get the air out because the bleeder is at the bottom and the air rises to the top.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



scottyboy1973
Novice

May 30, 2012, 5:55 PM

Post #9 of 20 (4443 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Do you have any tricks on how to do it right. I dont know much about clutchs...


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 30, 2012, 5:59 PM

Post #10 of 20 (4439 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

We have pressure bleeders, vacuum bleeders and helpers and I have still spent numerous hours trying to get one of these bled out. Sometimes you can get the air to migrate out the top buy just sitting there and pumping and pumping until your leg feels like it's going to fall off.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



scottyboy1973
Novice

May 30, 2012, 7:02 PM

Post #11 of 20 (4426 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

After I bleed the system, Will this solve my problem of the pedal being on the floor. it just seems like something in the pedal assembly is broken.


(This post was edited by scottyboy1973 on May 30, 2012, 7:08 PM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 31, 2012, 5:01 AM

Post #12 of 20 (4393 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

If there is enough air in the hydraulic system, the pedal will go to the floor.

Did you bench bleed the master before installing it?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scottyboy1973
Novice

May 31, 2012, 5:41 PM

Post #13 of 20 (4370 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

I did not bench bleed the master cylinder. Dont know how to do that..


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 31, 2012, 7:44 PM

Post #14 of 20 (4362 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

You bleed it off the vehicle as you would bench bleeding a brake master cylinder.

I've found success by taking the whole system off and getting the slave above the master and bleeding it that way. You want to tilt the master so the air can't be trapped. You need a helper because trying to hold the reservior and all that stuff is almost impossible by yourself. Once you get all the air out, then re-install the whole thing back on the truck as one piece.

I don't remember how it is set up on the master, but I remember doing one where I took the piston out of the master after removing a c clip and filled it up that way and then put it back together.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 31, 2012, 7:45 PM)


scottyboy1973
Novice

May 31, 2012, 7:53 PM

Post #15 of 20 (4356 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

I will definately try it. Nothing else seems ty be working. Ill let you know how it comes out...


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 1, 2012, 2:32 AM

Post #16 of 20 (4352 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Quote from an above post"I did not bench bleed the master cylinder. Don't know how to do that.."

Just a note on bench bleeding:

Chose a short YouTube that shows the idea. This show is just for a master cyl. but the same idea. If a kit doesn't come with a new master and I save them just make up your own from a piece of line bent to return under fluid back to master, hold master careful choose how to hold it in a vise, push on where pushrod would full strokes and then short strokes noting bubbles with just whatever works to push. I don't own the gadget tool shown and so far haven't needed it but would be easier to push as the pedal's push rod would.

This must be done even in cooperative master cylinders whether for brakes or a clutch or you'll do battle forever. With a bleeder on the bottom you are facing trouble out of the gate. Must if off car and like DS's trick - all off vehicle but must restrain the slave from blowing out its push action or piston in that would no doubt just pop out and could wreck it to reassemble?

The idea but a bit quick on how this person and hard to see how the master was held but shows the procedure. Hope that's of some help.

http://www.youtube.com/watch?v=i3Jhbz4mVKw

Tom



kensoncustom
User

Jun 1, 2012, 9:38 AM

Post #17 of 20 (4339 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

might get light look under dash at peddle linkage ,usually snap means something broke,check for firewall separation at master cyl. mounting surface


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 1, 2012, 9:58 AM

Post #18 of 20 (4338 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Do you have a helper available? That such that you can look while someone else is pushing the pedal and from inside no doubt would need a broom stick such that you could look while it's being pushed. Any parts fall out?

T



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jun 1, 2012, 6:24 PM

Post #19 of 20 (4326 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Ken has a good point about checking the firewall to make sure it didn't crack.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 1, 2012, 11:05 PM

Post #20 of 20 (4311 views)
Re: 1985 Ford F-250 Clutch pedal staying on the floor Sign In

Guess anything has to be ruled in or out. I've seen my share of whacked stuff- doors near fall off, several bumpers fall right off in the road - the HD real ones, not just the plastic crap but so far not a firewall but who the heck knows? I think they should salt roads more so even bridges collapse and do.

I want a horse. No, last ride dang thing decided it was the Kentucky Derby and stopped short at a fence and I went right over the fence! That was the LAST ride!

Perhaps we need my cat to help check this out - shes' good............



Tom







  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap