using the bleed screw as the main feed on brembo?

[s1v8esprit]

I am fitting some brembo calipers onto my esprit from a 996 porsche, they are fitted ok but I have a huge problem with the feed pipe touching my air spring on full lock. (yes I have air suspension fitted!)I have now fitted the lowest profile 8mm banjo fitting and ground the banjo head down as thin as I dare go and it still touches!!! oh the joy of modifying cars! does any one know if I can do away with the side feed and use one of the top bleed screw as my main feed? thanks

[andyiley]

I wouldn't recommend it, as then you will not be able to properly bleed the caliper.

[kev b]

Why not restrict the lock enough to gain clearance?

[Megaflow]

In theory you could fit the pipe to the bleed fitting, and the bleed nipple to the pipe fitting without an issue. But, the bleed nipple will be position at the place where the air gets trapped and needs to be removed from, making bleeding in reality a potential problem.

[s1v8esprit]

andyiley said:

I wouldn't recommend it, as then you will not be able to properly bleed the caliper.

it still has a bleed screw at the top on the other side? I could also remove the caliper and rotate it when bleeding?

[s1v8esprit]

kev b said:

Why not restrict the lock enough to gain clearance?

I did think of that but no real easy way of doing it without some huge bolt welded on the lower arm!

[s1v8esprit]

Megaflow said:

In theory you could fit the pipe to the bleed fitting, and the bleed nipple to the pipe fitting without an issue. But, the bleed nipple will be position at the place where the air gets trapped and needs to be removed from, making bleeding in reality a potential problem.

yes but it still has a bleed screw at the top on the other side? I could also remove the caliper and rotate it when bleeding as I have long stainless braided hose fitted. So no one is screaming NO IT WONT WORK other than it may be a pain to bleed. I know its not the best way but I don`t see any other way of doing it? God this car has been a real pain from the start.......

[stevieturbo]

Post a picture of the entire caliper, and the fouling.

There's a good chance the caliper could maybe be re-drilled and a feed applied somewhere else, with the original hole plugged.

Or some other solution.

[s1v8esprit]

banjo just before hitting air spring

banjo touching

top nipple I plan to use as feed

lots of work still to do!

[andyiley]

Could you not take the calipers to a local trusted machine shop & get a few mill' machined off where the banjo fits to the caliper?

[s1v8esprit]

andyiley said:

Could you not take the calipers to a local trusted machine shop & get a few mill' machined off where the banjo fits to the caliper?

it still wont be enough as I have moved it know to the top nipple and used the nipple as a plug for the original feed inlet, I had to cut the nipple off as it still touched!!

[s1v8esprit]

well have bleed the brakes..........and the pedal goes to the floor! so pretty cheesed off it didn't work. I even tried the other option that I thought may work, unbolted the calipers and rotated them one side a lot of air did come out but they still don't work. May be a vacuum pump may do it?

[WinstonWolf]

Have you tried an eezi-bleed?

[Dave Brand]

If you're using the bleed screw in its new position to bleed the brakes you're not bleeding from the highest point in the caliper. Try slackening off the banjo & bleeding from there.

[s1v8esprit]

WinstonWolf said:

Have you tried an eezi-bleed?

no but I did have one years ago! could never get it to seal on the master cylinder I used it on so it got chucked away, think one of parts split when it it was left unused for ages.....

[s1v8esprit]

Dave Brand said:

If you're using the bleed screw in its new position to bleed the brakes you're not bleeding from the highest point in the caliper. Try slackening off the banjo & bleeding from there.

the caliper had two bleed screws on top each side, one is now used as the feed, the other is still a bleed, and is still at the top, so is still at the highest point.

[andyiley]

I think the problem is that as a few of us advised originally you now need to find a way of bleeding effectively & without the knowledge of the internal arrangements of the caliper, it may be virtually impossible to predict what will work.

I did a couple of years ago do the same on an e36 track car, and had to buy & try 3 different calipers from the bay before I found ones that fitted & allowed me to do what I wanted properly, these I still had to modify to suit.

Luckily I didn't lose on any of my attempted purchases.

[marshalla]

s1v8esprit said:

the caliper had two bleed screws on top each side, one is now used as the feed, the other is still a bleed, and is still at the top, so is still at the highest point.

As is your new feed. If it had 2 bleed nipples, it probably needs to be bled from both points.

[Megaflow]

marshalla said:

s1v8esprit said:

the caliper had two bleed screws on top each side, one is now used as the feed, the other is still a bleed, and is still at the top, so is still at the highest point.

As is your new feed. If it had 2 bleed nipples, it probably needs to be bled from both points.

This. The bleed nipples will be higher the the transfer passage in the caliper, they need bleeding from both points, you have got an air lock by the new banjo fitting.

You either need to slacken the banjo and bleed that before the nipple, or get the caliper modified to add a new feed port lower down below the air bag.

[s1v8esprit]

I think I need a bigger master cylinder, have fitted some much bigger 4 pot calipers on the front of my S3. Have bleed them the normal way with some one pumping the pedal, have also tried one of those vacuum pumps (and no not that type your thinking of!) the type for vacuum leak testing, found they pull air in from the bleed nipple so stuck some bluetak around the nipple to seal it, then found my old ezi-bleed system got that working have put around 3 litres through it all, and convinced I have no air in the system. The pedal still has a massive amount of travel, at least 2/3 to 3/4 of travel before its hard. If I pump the pedal only comes up a very small amount. Which kind of confirms my feeling the system is bleed and the master cylinder is not up to pushing enough fluid for the front calipers? Ooo the joy of brake fluid all over your hands, tools, car, drive way, better not be any on my paint work.........I am already close to tears! have spent ages on the net to find pictures of what the fluid transfer route inside the caliper and found nothing useful. Have looked at the caliper and to me it looks like it may be just in from the back middle, to top and down on inlet side, then across the bottom and up to the top on the other side. The reason for two top nipples? because the fluid ends up on the top both sides. So comming in from the top and down across and back up should still work? if you can understand that? my heads hurting........