Brake Pedal goes to floor everything new !! :(

[XyriuS]

correct, the fact is that exploded a left hose, and since I'm working on it I would like to change all four, even the hoses to the right ..
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the German seller tells me that his master cylinder is not suitable, he says that I need the MB407061 .. in this site:
http://www.findpart.org/part/a.b-71637
seems that the same master cylinder have different names .. my P25W of '91 which pump mounts? thanks..

[XyriuS]

ok, mitsubishi confirmed to me that the code of the master cylinder is MB407061

[FalcoColumbarius]

ok, mitsubishi confirmed to me that the code of the master cylinder is MB407061

Just checked mine and the OEM number is MB407060. Curious why it would be out by just one number. Mine comes from Japan, not Germany, but you'd think the numbers would be more different.

Falco.

[XyriuS]

my veichle is a L300 '91 P25W .. and your?
(I still remember that in my surfing on the internet I found a master cylinder and technical data, said it was compatible with MB407060 AND MB407061..)

[FalcoColumbarius]

my veichle is a L300 '91 P25W .. and your?
(I still remember that in my surfing on the internet I found a master cylinder and technical data, said it was compatible with MB407060 AND MB407061..)

Mine is P25W as well ('92). I thought that because your P25W came from Europe that it would have a different parts number than the ones that came from Japan. Good news! Have you checked out the Delica Canada forum: Delica FAQ Section, in Delica Canada Technical? There is a thread in there called "Useful Links for Vehicle Part Identification Purposes." If your VIN is P25W-XXXXXXX (7 digits) then go to that link, scroll down to "JDM Online Catalogue." Click on the link and enter your VIN in the Mitsubishi field and click enter again. I'm not sure this will work for you but it might. If it does ~ you should see pretty much all the information on your particular vehicle. Let me know if this works for you.

Falco.

[dr_airtime]

About 3 weeks ago I replaced my front inner/outer brake houses and both sides and bled my brakes back to front and made sure to push out all hydraulic fluid and not pull any air into lines (i.e. pump, close bleed screw, release pedal, start again).

There is a little gap between pushing on the pedal and getting any feedback on the pedal and it feels like the Master Cylinder as I had this problem on an old 92 golf. Pedal probably only moves about 1 inch before the brake starts tensioning up. No change in stopping power pre-and post bleed/hose replacement so I figure Master Cylinder?

Seems to be too much of a movement to be air in the system. Can anyone else how has had this problem confirm? I have a 91 L300 Chamonix from Japan. Original master cylinder, front and rear pads at about 70% and no issues on braking except for pedal play.

[nxski]

There's always going to be a little bit of play in the pedal so you can cover the brakes (light comes on but brakes don't engage). This is more than what is normal though?

[Manitoba deli]

On a vehicle with drum brakes on the rear, if the rear shoes are not properly self adjusting, it will result in increased travel in the pedal before you have brake response. You may want to check the rear brake shoe adjusters, and if they are ceased up, get them freed up and properly adjusted. I would check this before buying any parts.

Jason

[Manitoba deli]

Also, have the drums measured. Brake drums that have been worn beyond spec. can give this feel also.
Jason

[XyriuS]

Have you checked out the Delica Canada forum: Delica FAQ Section, in Delica Canada Technical? There is a thread in there called "Useful Links for Vehicle Part Identification Purposes." If your VIN is P25W-XXXXXXX (7 digits) then go to that link, scroll down to "JDM Online Catalogue." Click on the link and enter your VIN in the Mitsubishi field and click enter again. I'm not sure this will work for you but it might. If it does ~ you should see pretty much all the information on your particular vehicle. Let me know if this works for you.
Falco.

the chassis number of my vehicle is P25Wxxxxxxx (8 digits) .. perhaps I did not understand what you mean by 'VIN' .. however, I have tried all the GLX on the site you've mentioned (except 'sunroof') and they all have the same master cylinder: MB407060 .. .. bboohh

[FalcoColumbarius]

VIN= Vehicle Identification Number. It's found under a little hatch beside the right hand front seat, between that and the door. I think it's the chassis number, not sure 'though.

Falco.

[izack98]

I am having this same issue with the pedal going to the floor in my 97 L400. After replacing some brake components, with the engine running the pedal creeps to the floor. When the engine is off the pedal pumps up hard and remains that way. When the engine is started it creeps all the way to the floor (further past where is should normally stop).
I replaced calipers, pads and rotors all the way around. I gravity bled the system, then used a vacuum pump to pull all new fluid through the system. I then bled the system correctly using the 'pump, open bleed screw, pedal goes down, close bleed screw, pump pedal, repeat numerous times' with the help of a friend. Beginning with the LR then RR then LF then RF. There was no air that came out of the system at any of the bleeder screws during this last bleed.
I have experienced this issue before several times in various makes of vehicles and replacing the master cylinder has solved it.
I ordered a master cylinder (thanks to John at RMI) and replaced it and re-bled the entire system all 3 ways again. It has not improved. Pedal still creeps to the floor.
Earlier in this post it was suggested bleeding the brakes with the engine running. I don't understand the reasoning for this but I did that too....no difference.
There was no black residue in any of the fluid which is suggested earlier in this post would indicate deteriorating rubber brake lines. I realize they still could be faulty. So I am in the process of finding parts.
An exterior inspection of all the rubber brake hoses looks fine. No bulging, abrasions etc.

I am at a loss as to what to do next. Has anyone else had a similar issue where they have resolved it? An earlier post tells of sending it to the shop but it did not provide an explanation as to what the shop did to resolve it.

I have ordered rear outer brake hoses. I guess it doesn't hurt to replace 15 year old brake hoses. I cross referenced the OEM Mitsu # (MR129744) on the Beck Arnley site ( http://www.beckcatalog.com/ ) and came up with a match (Beck Arnley # 073-1627.....$19 each at Lordco). The Beck Arnley site doesn't list a part # for when I try to x=reference the other OEM Mitsu brake hose #'s listed for my L400. The online OEM Mitsu catalogue doesn't show the Delica hoses being the same as any of the models of Montero.

Any suggestions??