F250 Stiff Clutch
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F250 Stiff Clutch
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Have someone push the clutch while you are looking at the clutch master cylinder. You may have the dreaded firewall flex problem. If the master cylinder moves, Ford has a bracket that fixes the problem.
Tuned
Joined: Jul 2003
Posts: 359
Likes: 0
From: ga
diesel dan, had any problems with the starter switch notr making contact?you may before too much longer.i have a 89 f350 7.3 w/5spd and have mine tore apart right now trying to get all the linkage right.lots of bushing wear.
dave, how does the bracket that ford has fit on?what do you ask them for?i took the whole pedal assembly out.there was slop in both ends of the cross-shaft bushings.i bought new ones and im gonna replace them this morning.i dont think i have too firewall play but i dont know what else it may be.if this doesnt do it ,im really stumped.Do i need to install the bracket from ford with the pedal assembly in or out?thanks.
dieseldan,sorry,wasnt trying to hijack your thread,it just sounded similar to my problem and i thought maybe we could help each other.
dave, how does the bracket that ford has fit on?what do you ask them for?i took the whole pedal assembly out.there was slop in both ends of the cross-shaft bushings.i bought new ones and im gonna replace them this morning.i dont think i have too firewall play but i dont know what else it may be.if this doesnt do it ,im really stumped.Do i need to install the bracket from ford with the pedal assembly in or out?thanks.
dieseldan,sorry,wasnt trying to hijack your thread,it just sounded similar to my problem and i thought maybe we could help each other.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
The bracket is a clutch master cylinder stiffener.
Costs about 20 dollars.
It installs from the engine compartment.
I think I had to unbolt the clutch master cylinder, been a while since I did that repair.
Costs about 20 dollars.
It installs from the engine compartment.
I think I had to unbolt the clutch master cylinder, been a while since I did that repair.
Senior User
Joined: Nov 2003
Posts: 325
Likes: 0
From: Hallettsville, Texas
I just bought one from Ford about a month ago. $16.00. It installed from inside the cab. Peice of cake to put in. It may be easier to drill your holes from the engine compartment though. Mine came with a template and instructions, can you believe it. I even used them, lol. I had the pedal assembly out already for a automatic to standard swap when I did mine but it is not necessary. Daves right, you do have to unbolt the clutch master cylinder.
Hey Dave, How do you like the 7.3 in your `86? I have one I am thinking about sticking in one of my `86 F350 non-turbo 4x4`s. Can you tell much difference on power? Is it worth the trouble? Not trying to hijack your thread, Dan.
Hey Dave, How do you like the 7.3 in your `86? I have one I am thinking about sticking in one of my `86 F350 non-turbo 4x4`s. Can you tell much difference on power? Is it worth the trouble? Not trying to hijack your thread, Dan.
Senior User
Joined: Nov 2003
Posts: 325
Likes: 0
From: Hallettsville, Texas
Hey Dan, My dad has a problem with his `85 F350 that I never have with my `86`s in that every once in a while he has to oil the fingers on the pressure plate with a small amount of oil. His clutch will get so stiff you can`t hardly push it. The oiling eliminates it for about a year. Don`t overdo it though if you decide to try it.
Thread Starter
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Elder User
Joined: Sep 2004
Posts: 577
Likes: 0
From: Peoria IL
f250 stiff clutch
IF the firewall was flexing then wouldnt the clutch not disengage fully? How does this cause it to be so stiff. It causes the entire dash to sqeak. thanks for the help.
PS has anyone ever replaced the glow plug relay on the 89 7.3?
PS has anyone ever replaced the glow plug relay on the 89 7.3?
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Main reason is when the firewall flexes it is putting all the linkage in a bind.
AKA hard to push, squeaks galore.
Yes, when it gets real bad the clutch will not engage enough to be able to shift into gear.
I converted mine to manual glow plugs, makes them last lots longer.
Horton, I like my 86 sleeper real well. The Dodges, Chevys, and Power Strokes have no idea what hit them between the eyes. By the time they hear the turbo, it's to late, I'm gone and they are choking on my smoke.
AKA hard to push, squeaks galore.
Yes, when it gets real bad the clutch will not engage enough to be able to shift into gear.
I converted mine to manual glow plugs, makes them last lots longer.
Horton, I like my 86 sleeper real well. The Dodges, Chevys, and Power Strokes have no idea what hit them between the eyes. By the time they hear the turbo, it's to late, I'm gone and they are choking on my smoke.
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Senior User
Joined: Nov 2003
Posts: 325
Likes: 0
From: Hallettsville, Texas
I use a momentary toggle switch. I hold it approximately 3 seconds. I have yet to have to change any of my glow plugs on my trucks, knock on wood! DO NOT USE A REGULAR TOGGLE SWITCH AS IT CAN GET BUMPED INTO THE ON POSITION AND YOU WILL BE IN TROUBLE!
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
In WV I hit them for about 3 seconds in the summer for the first start of the day. The rest of the day I do not use them at all.
In the winter when it is zero I give them 9 or 10 seconds first start of the day unless I had it plugged in. Then I do not use them unless it sits for 5 or 6 hours without running.
When you figure the controller heats them about 9 seconds every time you turn the key on, these should last for 5 or 6 years.
Also the controller is about 175 dollars from Ford if you replace it.
The manual conversion cost me 20 minutes and 5 dollars for a momentary switch, already had the 10 feet of wire.
In the winter when it is zero I give them 9 or 10 seconds first start of the day unless I had it plugged in. Then I do not use them unless it sits for 5 or 6 hours without running.
When you figure the controller heats them about 9 seconds every time you turn the key on, these should last for 5 or 6 years.
Also the controller is about 175 dollars from Ford if you replace it.
The manual conversion cost me 20 minutes and 5 dollars for a momentary switch, already had the 10 feet of wire.
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Elder User
Joined: Sep 2004
Posts: 577
Likes: 0
From: Peoria IL
Dave, how do you hook up the switch? are there only a couple wires going to the relay? I havent looked at it yet but it sounds like a good idea since i dont feel like blowing 175 on a relay that will probably wear out again in a few years. Would a button type switch work? thanks for the help
PS the firewall flex sounds like my problem and I didnt know if you had to unhook the master cylinder or not. I wasnt wanting to pull out all the pedals and linkage
PS the firewall flex sounds like my problem and I didnt know if you had to unhook the master cylinder or not. I wasnt wanting to pull out all the pedals and linkage
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Elder User
Joined: Sep 2004
Posts: 577
Likes: 0
From: Peoria IL
The plugs are only staying on for about 4 seconds and it wont start unless I get them to cylce for at least 8. It gets cold here in the winter and I will need them to run for about 10 probably when it gets down around 0. I already replaced the entire fuel system including both pumps, injectors, and fuel lines. It is the only thing that I can think of that would make it start hard.
Tuned
Joined: Nov 2002
Posts: 348
Likes: 0
From: Benson, AZ
Here is a link to a diagram i drew up about 6 months ago. it is the same way I did mine in january
scott
full size
https://www.ford-trucks.com/user_gal...oid=53962&.jpg
scott
full size
https://www.ford-trucks.com/user_gal...oid=53962&.jpg
Last edited by macman85602; Sep 12, 2004 at 02:17 AM. Reason: Replace diagram for clarity