Brake fluid on reservoir?

[handloader90]

Just did brake fluid and bled the brakes.

Looked under the hood and theres brake fluid all over the reservoir.

Too much brake fluid inside the reservoir?

 

[skunked]

too much fluid and/or needs a new seal

 

[Bent77]

Baby seals are new...

 

[dyeager535]

https://ck5.com/forums/threads/master-cylinder-interchange.326491/#post-3660664

 

[handloader90]

after I bled the brake the fluid was like 1/4" from the top... I'm gonna guess that too much.

My reservoir is split somewhere in the are of 60/40 or 70/30 and I basically topped both of them off, should I drop the fluid down to around 1/2" from the to of the reservoir?

 

[diesel4me]

You do need a bit of room for expansion,especially in hot summer weather..
The lid gasket could be faulty too of course...
I have had a master cylinder overflow when I pushed the caliper pistons back in to make room for new pads more than once...thought there was enough room in the "tank" but nope..

 

[handloader90]

It's hotter than the devil's nutsack here. Generally 95 with a real feel of around 105 to 110 die to the overly excessive humidity.

I'm gonna remove some of the fluid and see what happens. I think the seal is fine (hopefully) cause this only happened after I topped it off after bleeding the brakes.

 

[skunked]

As @dyeager535 was mentioning in the link he posted, the metal MS gets pitted, rusted and seals poorly. I've put a couple seals on mine (which was pretty new when it started leaking) and it still leaks on the trail. I was looking at going with a plastic reservoir myself.

 

[handloader90]

I'm holding off on putting a new brake booster and reservoir for now due to the set of 1 tons sitting in my garage that are gonna need a bigger setup in the near future.

I plan on going to the plastic style when I do the swap.

 

[Blue85]

Generally 95 with a real feel of around 105 to 110 die to the overly excessive humidity.

The reservoir is probably sweating .

And nice Freudian slip there with "die".

 

[Tnsejed]

I've gone through this on my truck and a few customer vehicles back in the day, with old, and even reman units.

Pending that the seal is in good shape sometimes you need to take the MC off and lap the top seal surface where the cover goes on. Also the covers get bent pretty easy, and alot of times they even come bent out of the box.

On my particular reman'ed master that I am currently running I did all of the above and she still seeped out of one corner. So I had to make a top cover-cover. If that makes sense. I just made up something that fit around the outside of the metal cover that was thick enough to not bend with spring pressure. I used G10 to do it but you could easily make one out of mild steel or aluminum. The spring pushes on the cover-cover and pushes the whole thing down flat.