TransBrain: So would a fluid with a higher boiling point like the Motul fluid have any affect either increasing the problem or decreasing the problem with the proportioning valve?

P.S., for extra points, what is a "proportioning valve" anyway? Where is it located and what does it do?

 

Tim
The proportioning valve, as I understand it anyway, "meters" the pressure between the front and rear brakes, sending more to the front. On my old bronco the first shot of the day on the brakes and you would kiss the windshield, after that it was like there were only rear brakes. Was never sure on the location or what it actually looks like but most likely near the master cylinder. A friend that was a fleet mechanic for many years pointed me in that direction but never got a "round tuit".

 

The valve is located left front fender well under the battery box if you take the inner fender well out you can see it

 

Tim I see you bought the fancy DOT 4 fuild and if you go that route just make sure you get all the old DOT3 out because a true DOT4 I believe is not compatible with DOT3. You might want to check that or someone here might know. I used Valvoline DOT 3 and 4 Synthetic Brake Fluid because it is compatible with both.

And for you guys asking about the pistons this explains it better than I can.

What Lasts Longer with Brake Caliper Pistons, Phenolic or Metal?

 

NAPA part number Part Number: CAL N141580
For the left front taken from my Napa app on my iPhone. If you need the other three part numbers let me know. Their pricing is a little high I think I paid half that from the Irish.

 

BadDogKuzz: Good Point! I think I am ok because even though it is synthetic, it is a "polyglycol fluid." It is not silicone." Rather, it is a DOT4 which is backward compatible with DOT3 glycol based brake fluids. But coud you guys please help me out here if I am screwing up?

http://en.wikipedia.org/wiki/Brake_fluid

OK 7.3 PSD Guys! The good news is that my 7.3L PSD E350 van and your guys' 7.3LPSD F-series trucks are specifically listed for the RBF 600 product on the Motul website.
But when I look up on the Motul fluid advisor for the 1995 Bronco, it doesn't list it at all and it doesn't list any F-150's prior to 1997.

And when I look up on the Motul fluid advisor for my wife's 2000 Dodge Dakota, the earliest Dodge Dakota listed is a 2005.

The Napa guy said I can use DOT4 in my DOT3 Bronco, so shouldn't it be ok backwards compatible regardless of the Motul fluid advisor? I don't see a contact us email link on the Motul website to ask them.

Any thoughts? Alternative recomendations so I can upgrade my brake fluid but use the same stuff in all three vehicles?

 

Hey, that last post is screwed up font-wise and when I go to edit nothing shows in the edit field - it is completely blank of any text - so my apologies, I don't know how to fix it...

I am passing on the Motul RBF 600. The Motul fluid advisor only goes back to 1997 for the Ford F-150 and does not list the Bronco which was last manufactured in 1996. Although, under the Classic car button on the Motul fluid advisor states I could use the Motul RBF 600 if I had a 1968 to 1970 Mustang 351ci. Go figure.

In response to a pm a brother on the sportsmobileforum.com stated:

"There's a strong possibility that some of the seals in your Bronco are not compatible with the chemistry of the Motul 600. Older rigs used more natural compounds for seals (including latex) vs the new stiff with is mostly Viton."
Thanks carringb!

While the Motul RBF 600 is specified for ,my 2002 7.3 PSD E350, since I want to use the same fluid for all three vehicles, So back to the drawing board for brake fluid. Do you guys have any sugestions?

 

Believe it or not, the Motorcraft High Performance dot 3 brake fluid is actually pretty good. With fresh fluid, as long as all fully flushed, with all the air bled out, and no other problems, you should be good to go.

 

I could edit it, but it probably would have taken me an hour to clean it up. Easier to just remove the text and leave the link in place.

 

Thanks TigerDan!

 

Someone is either not informed or is too lazy to look the parts up. They are awful high on their prices though.

NAPA PROLink

NAPA PROLink

NAPA PROLink



Correct