mbc

[stainesy]

i just fitted my mbc. then after alot of ££££lin about decided i didnt like it and changerd back. but when i took the pipes off the solanoid to put them on mbc i noticed that the pipe where the opasit way round to this diagram.

mine had the green pipe coming from the turbo to the bottom hole in the solanoid and the yellow pipe coming from what i think is the wast gate toing to the top hole in the solanoid. the car has been working fine like this since i got it. should it be the other way round?

dont mind the changes i made to the pic was for my own use

[850twr]

hmm i'm not too sure mate, altho thinking about i think my yellow one maybe on top also, will check tomorrow for you.

[t5 pete]

on the 850 bcs should be in this order also it has colour marking on it
TOP YELLOW= acuator
MIDDLE BLUE= air pipe
BOTTOM RED= turbo

[850twr]

so assuming that diagram is from a later t5? ME7?

[stainesy]

in that diagram where i have added the mbc. have i added it right? is that the right way for the mbc to be or have i got it the rong way round?

[t5 pete]

on the 850 bcs should be in this order also it has colour marking on it
TOP YELLOW= acuator
MIDDLE BLUE= air pipe
BOTTOM RED= turbo

it says it all there if you have time 2mrw have a look at your bcs and make sure the right pipes are leading to the right colours

[t5 pete]

so assuming that diagram is from a later t5? ME7?

I would think it is a diagram from the me7 due to the colours being different to the 850 diagram and also the location of the red pipe its white on the 850 diagram and come from the other side of the turbo from the recirc valve

[stainesy]

it says it all there if you have time 2mrw have a look at your bcs and make sure the right pipes are leading to the right colours

yeah thats exactly the way mine is. in the diagram at the top have i fitted the mbc right in the pic?

[t5 pete]

i have never fitted a mbc but it looks right to me as there the main two for the boost

[stainesy]

i have never fitted a mbc but it looks right to me as there the main two for the boost

yeah i no they the right pipes but want to no if the mbc is the right way round.

[irf]

there is a way to figure out if the mbc is the right way round or not but i've never been arsed to pay attention.

i've always just put it on and then if i find that any adjustments to the mbc make no difference to boost, switch it round the other way. simple.

if you've put it back the wrong way round i'd assume you'll probably run actuator pressure(not the same as boost pressure) so probably 3-6psi.

[nathT5]

on the 850 bcs should be in this order also it has colour marking on it
TOP YELLOW= acuator
MIDDLE BLUE= air pipe
BOTTOM RED= turbo

80110x, ive been using that diagram too when swapping my MBC and BCS.
so ive had -

top=turbo
middle=inlet pipe
bottom=actuator

what would happen (if anything) piping the BCS up like this, it ran ok

[stainesy]

80110x, ive been using that diagram too when swapping my MBC and BCS.
so ive had -

top=turbo
middle=inlet pipe
bottom=actuator

what would happen (if anything) piping the BCS up like this, it ran ok

so are you saying all along you had your bcs piped up rong?

[t5 pete]

80110x, ive been using that diagram too when swapping my MBC and BCS.
so ive had -

top=turbo
middle=inlet pipe
bottom=actuator

what would happen (if anything) piping the BCS up like this, it ran ok

you would probley run the autuator pressure i geuss the way i have shown with the colours is a genuine diagram for a volvo 850 have a look at the colours on the 850 bcs its easy

[t5 pete]

80110x, ive been using that diagram too when swapping my MBC and BCS.
so ive had -

top=turbo
middle=inlet pipe
bottom=actuator

what would happen (if anything) piping the BCS up like this, it ran ok

hahahaha ive only just figured out what 80110x means

[stainesy]

hahahaha ive only just figured out what 80110x means

LOL oh yeah i just sat and looked at it for a wile and then it came to me LOL

[nathT5]

so are you saying all along you had your bcs piped up rong?

not all the time but a good few weeks on and off.
i keep changing from MBC to BCS every so often just to experiment.
ive always used the above diagram and it mainly ran good, boosting 3/4 up the gauge.

[nathT5]

LOL oh yeah i just sat and looked at it for a wile and then it came to me LOL

hahahaha ive only just figured out what 80110x means

its how i swear without writing the word, clever innit?

[stainesy]

iv noticed that on my boost gauge when the engine is turned off the needle sits at -2 psi rather than on the 0 mark. and on idle it sits at -20 psi. so does that mean that when mine reads say 9 psi its actuly at 10 psi? should it be sitting at the 0 when engine off?

[t5 pete]

Its probley just where the gauge settles at