Awww... crap!


AllanD

TRS Technical Staff

TRS Technical Advisor
Joined
Jun 1, 2001
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7,897
Points
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Age
64
City
East-Central Pennsylvania
Vehicle Year
1987... sorta
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Manual
Well, the anticipated but dreaded cracked firewall finally bit me...

My firewall has cracked around the clutch master cylinder, so now I get to engineer a fix...

Like I needed something else to do...

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thats sucks! maybe getting a donor cab, to cut and weld the fire wall to yours? or at least the damaged area
either way thats gonna be a pita for sure
 
Awww... crap!



duh.
 
DUH LOL LOL I was thinkin the JBweld fix, but cutting out a section of firewall from a JYqueen and welding in place shouldnt be too bad....
 
You guys are giving idea to Allan D? He's like the Chuck Norris of Rangers, he knew the fix before it ever happened.
 
You guys are giving idea to Allan D? He's like the Chuck Norris of Rangers, he knew the fix before it ever happened.

HUGE LOL
he's so chuck norris that when he was in his moms belly he knew this was going to happen, and already thinking how to fix it.
prolly hes gonna come up with a new metal from this
like: steelironcrap-rustjbweldadamantium :D
 
Chuck norris huh? SO the firewall will be fixed by itself at the mere mention od ChuckD's name?
 
actually, the real name is norriswall
they called it fire cuz chuck wouldnt lend his last name.
 
Didn't Ford come up with an adapter plate for this fix?

If it should be done, get it done once. Weld a dang metal plate to it.
 
As long as you don't do what I did...replaced the cab, frame, box, and motor/tranny...

I could have fixed mine better, but then the A pillar rotted out...and my dog bit me...but it wasn't even my dog...
 
I had that with my '91. I lost all the pictures of my fix in a computer crash. I didn't patch the sheetmetal though. I made the master bolt to the brackets in the dash, or maybe the pedal frame or both, with a couple steel bars bent and drilled just so. My B2 hasn't done it, knock on wood.
 
There is a factory reinforcement on mine
but it seems some dumbass with an engineering degree put the reinforcement on the
ENGINE side of the firewall, placing the thinner firewall and the welds between them under tension.

HOW I'm going to fix it is cut one reinforcement piece to fit
inside the slight lip of the factory reinforcement

And cut another LARGER piece of thicker material for the inside
then rivet the two together as well as letting the booster and
slave clamp them together.

But for good measure both pieces will be generously slathered with door
skin adhesive before I buck the rivets.

I'm figuiring on using metal stock around .090 on the outside and something slghtly thicker (0.125") on the inside with countersunk structural (aircraft) rivets on both sides.

I will of course make more than one set

I do still have my spare cab (I'll make a set for that as well)
and my 1993 supercab will need one as well...

But I'll also make templates so I can make more.

The issue is that the area is an insufficiently reinforced stressed area,
but there are two square holes where the factory retaining nuts are welded into the firewall for the bolts that hold the clutch master cyl in place

Please not on a 1995-up the Clutch master mounts to the pedal bracket, NOT the firewall.

Is anyone still wondering why?


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