The proportioning valve on my 1985 Grand Marquis blew out last Friday and I can't seem to find one anywhere. None of the local parts stores can find one that isn't universal fit and the junkyards around here have crushed everything pre-1990. Is there anywhere I can find a stock replacement part? Not that I need brakes anyways, what with my steel bumpers and plenty on trees/rocks/pedestrians around...
 |
-
-
Go to French Lake just west of Annandale, they've got some boxes...can't guarantee the usability of a part like that, but they'll certainly have 'em.
2001 Ford Crown Victoria P71 - "The Fire Engine"
1985 Lincoln Town Car Signature Series
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8 -
teamfordparts.com has them, $157 for a sedan prop valve, $93 for a wagon.
Now I'm curious what the hell the difference is lol86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
Perhaps they proportioned the braking effort differently on wagons because the weight distribution is slightly different? *shrug*
2001 Ford Crown Victoria P71 - "The Fire Engine"
1985 Lincoln Town Car Signature Series
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8Comment
-
that would be my assumption as well, but I'm curious what the split is.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
The cheap way out would be one of those adjustable brake bias valves from Wilwood, had one in the Chevy but I needed it anyways cause the different tires front/back and the hydroboost setup. Tis like $30 or so, and allows you to dial yer rear brakes pressure to where you want it. Downside is that if you blow something (hose, caliper, wheel cylinder, steel line, whatever) this valve will not seal off that part of the brake circuit, unlike a stock prop valve that will (or at least is supposed to).Comment
-
You could use an aftermarket prop. valve. Wilwood makes them, and I believe they're like $60. I believe Michael (1987cp) used one on his car. You may want to PM him if he doesn't post here. Its adjustable, so you can proportion the brakes how you want them.**2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
**2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
**2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
**1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck DutiesComment
-
90-91 boxes use the exact same brakes....The proportioning valve should be the same...
Wagons have more wieght, and come with the 11" drums. so, I'd expect them to be different.Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
-
yea but your big brakes/rear discs work well right? if it were me i'd go for the cheaper one
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
please be patient, rebuilding an empire!
Comment
-
well amazingly enough its in the book, and they are not directly interchangeable. The fittings are different sized.
on the primary side, the wagon has 7/16" in, 3/8" out. Secondary side is 1/2" in, 7/16" out
on the sedan, primary in is 3/8", primary out 3/8", secondary in 7/16" out 7/16"
wagon proportioning split/slope 300/.43
sedan proportioning split/slope 300/.3686 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
+1 As you've probably read, Nate, my experience was likewise that a stock replacement prop valve simply couldn't be found. They're horrid to get to anyway, so I wasn't sad to be rid of it. In a pinch, you can run without a proportioning valve if the problem is like mine was, since too much pressure to the rear brakes feels quite a bit safer than having no rear brakes at all!Originally posted by P72Ford View Post
Check eBay ... adjustable valve I put on the LTD was from Stainless Steel Brakes and was left over from a kit, never installed, and I got it for more like $25 (the Mercury has a Wilwood bought new from Summit for $40). Saw others, including Mopar Performance brand, with bids as low as $15.Last edited by 1987cp; 02-06-2008, 03:42 AM.2012 Mazda5 Touring | Finally working on the LTD again!
Comment
-
I think I'd have to agree with the aftermarket solution just for price reasons. That stock valve is in a rather nasty spot. I've cleaned mine and had a hard time getting at it. I wouldn't want to replace it.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
looks to be accessible from fenderwell area easier than from above.
Addicted to 86-87 PanthersComment
-
If you have skiny hands you can easily reach the thing from above, but once stuck line nut and you're about done, it can be reached from below too, but if you still got stock downpipes it can be a bit of a challenge.Comment
-
Success!
Fortunately, I live close to the world's oldest Ford dealership, and they happened to track a NOS one down. Apparently they rarely go bad so hardly anyone ever orders them. My Dad (who splits the cost of the car with me since we both drive it regularly) nixed the aftermarket prop valve since there's no fail safe. Since it was only 18 degrees today we had our buddy with a heated shed install it since he owes my Dad for selling him a Celebrity that was a piece of junk. It was a good thing too since he noticed the water pump is leaking like mad.
Comment
Comment