Injectors misbehaving but trying to understand the numbers

[CitroJim]

Oh dear Darren, sorry you're having a couple of issues... I recall HuskyXantia had lots of 'fun' with is C3 Picasso master cylinder so a look at his posts may shed a little light

[MattBLancs]

I had a fight too bleeding clutch hydraulics. I can't recall if it was pressure bleeding (via car tyre pressurised "Easibleed" kit) or vacuum bleed (via little vacuum pump thing I've got) or even both together!

[MattBLancs]

Example of Easibleed (though this is "Blue spot" rather than Gunsons)

https://ebay.us/m/ju10R1

Example of vacuum bleeding setup:

https://www.diy.com/departments/autojac ... 575_BQ.prd

Note the above is B&Q doing it's impression of Amazon Marketplace - you can't actually stroll into the big orange places and pick up one of these unfortunately!



Oh, also be aware there is a little stupid seal on the slave cylinder end of things - I lost mine and paid through the nose for a little bit of rubber that'd sit on your pinky finger nail!

[darbuck]

Ok thanks lads so it's a known issue. I will have a look at huskyxantias post as you suggest Jim. I have a draper master bleed but doesn't seem to be generating any vacuum, it's about 10 years old so could be the seals are gone in it and I bought an power blender last year but never tried it until yesterday and the reservoir cap disintegrated on first use so I tried a big syringe and it did nothing either. Fun times I'm having I will have a look at the links you sent Matt thanks. I'll let you know how I get on.

[darbuck]

I should have a mityvac somewhere. I was looking for it yesterday when I realised my vacuum bleeder wasn't working but couldn't find it. The procedure says let gravity do it's thing but I'm not getting anything coming out at the slave and the master doesn't have a bleed point so I have to resort to persuasion.in the form of air pressure.

I meant to say as well the new master cylinder is slightly different to the original, the original high pressure port is at a 90 degrees bend but the new one is straight out, so I had to bend the pipe 90 degrees to get it to fit . Before you say it no the bend is not kinked there's plenty of play on the pipe to allow for it.It throws another variable into the mix

[PaulC5]

We've had 3 different types of slave cylinders. The C5 one its bleed screw is turned 180°, a C3 where the pipes were held with clips and the pipe had to be pulled out a bit, the Cactus where the bleed screw has to be undone about 2 turns. I use a Mityvac, trying pedal pushing does not work well but it is important to keep the reservoir level high since its outlet to the clutch is high up. From memory, somebody on here was having a lot of problems bleeding the clutch and it turned out there were leaks on the pipes. Last time I did the Cactus I also had to quickly pump the pedal down and up quite a lot after bleeding since the pedal was not right, there was something about this I think in a Haynes manual.

[darbuck]

Yes there seems to be a lot of different versions requiring different procedures for each one. They are a pain in the face to do, I'll figure it out. At the end of the day it's just two hydraulic cylinders with pipes between them. I'll post up when I know more.

[darbuck]

I pulled the high pressure pipe off the master cylinder and there doesn't seem to be any fluid coming through the master cylinder and the line to it has good flow when I disconnect it so I I think it's full of air or a dodgy cylinder but its more likely air.

[MattBLancs]

Yes I had the 90° versus straight on pipe connection issue too!

I bought one specifically confirmed as fitting my car (both by Citroen part number from the forum and the seller by car reg / VIN details) when if rolled up it was the wrong one!

In the end I bought one by "looking at the picture" (of the hose connection orientation) and got a direct replacement. Officially not compatible (but suitable for a Citroen C4 which obviously never came with the 2.2 HDi)
I think the pedal pressure was a touch higher with the replacement unit (suggesting it was a bigger piston, less mechanical advantage) but, well I used to drive a 306 so a heavy pedal is a relative term!!

[darbuck]

I dont know Matt it's a nightmare trying to verify parts by picture or part number neither are a reliable method of identification it was supposed to be compatible with the C5.

[darbuck]

You really need to get them side by side the cylinder itself is exactly the same size it's just the port is at a different angle.i think I will have to wait to get a new pressure bleeder. That'll be end of the month now. The cost of living has me smashed.

[MattBLancs]

Oh, also be aware there is a little stupid seal on the slave cylinder end of things - I lost mine and paid through the nose for a little bit of rubber that'd sit on your pinky finger nail!

Just for info, this seal:
Citroen Fiat Peugeot Clutch Slave Master Cylinder Pipe Seal 215615
https://ebay.us/m/8CpkvR


And this is the clutch master cylinder I eventually fitted:
"Sold by:
carpartsinmotion

Clutch Master Cylinder fits PEUGEOT 1007 KM 1.6 2005 on LuK 218230 Quality New

£21.82"

[darbuck]

Hi Matt, I bought this one on misterauto.the code is pnb635, that seal you posted is on the end of the pipe. I use the likes of them for new parts now because I don't trust eBay sellers to supply genuine products. I've been burned too many times with Chinese crap. I'm going to see if I can get the parts I need to fix my power bleeder, I think Marley end caps would work if I have some but I might have to buy some. Either way it should be cheaper than buying a new one.They are just a repurposed 5l sprayer anyway.