Engine 850: B5234TR/2.3/20v/T5R: - Loss in boost - Page 3

AndysR · Feb 17th, 2008, 18:35

Quote:

Originally Posted by irf

i think the red hose comes to the front of the inlet manifold from memory. just in front/behind the radiator on the right side of the inlet manifold.

Is that the one with what looks like a one way valve fitted and is clipped to the rad fan cowling?

Georgey dee · Feb 17th, 2008, 18:40

You will get a Lambda light if you disconnect the BCS and to be honest, it wont prove much. It does sound like the BCS to me as you had a bit of a symptom 500 miles back and then it cured itself. That could have also been a sticky actuator. I would wack a MBC on or a donar BCS and see if that helps then go from there.

Good luck

George.

PS. I don't 'track' my baby, it's used as the safety car if needs be but I'd rather use someone else's brakes and tires. LOL

irf · Feb 17th, 2008, 18:41

Quote:

Originally Posted by andyrs

Is that the one with what looks like a one way valve fitted and is clipped to the rad fan cowling?

it's either under or over that one, but yeah, same place.

Georgey dee · Feb 17th, 2008, 18:42

Quote:

Originally Posted by irf

it's either under or over that one, but yeah, same place.

Yep, it's just under that one but they come from the same feed so it doesn't really matter. That where I plugged my Dumper into

AndysR · Feb 17th, 2008, 19:17

Quote:

Originally Posted by Georgey dee

You will get a Lambda light if you disconnect the BCS and to be honest, it wont prove much. It does sound like the BCS to me as you had a bit of a symptom 500 miles back and then it cured itself. That could have also been a sticky actuator. I would wack a MBC on or a donar BCS and see if that helps then go from there.

Good luck

George.

Cheers, I had thought that, I still feel it's more an electrical fault than a leaky hose as when I am under boost conditions the little boost that is supplied is constant regardless of engine speed which makes me think its more a faulty boost control solenoid than an actual leak. But now I have seen the condition of the vacuum hoses I want them renewed and it won't hurt it to do so anyway. Hopefully I have managed to find a spare bcs to try, thanks Stust5, so with that and renewing the vacuum lines hopefully this time next week I should have it back up to scratch again

Quote:

Originally Posted by Georgey dee

PS. I don't 'track' my baby, it's used as the safety car if needs be but I'd rather use someone else's brakes and tires. LOL

Now your making me feel quilty about taking mine round the track! lol

AndysR · Feb 17th, 2008, 19:47

Quote:

Originally Posted by irf

Not having looked at the hoses in great detail I am assuming they are all the same size? Well all the coloured one in the diagram above anyway? Planning on removing the easiest one to get some replacement hosing over the course of this week, probably grab some of that blue silicone stuff the local factors have just started stocking

Georgey dee · Feb 17th, 2008, 20:09

Here are some part numbers for you

2x05.tmp.jpg

You can see that most of the pipes are the same part number and are sold a meters

irf · Feb 17th, 2008, 20:10

yep, i think it's either 3 or 4mm. more likely 4mm.

edit. you beat me this time LOL

Georgey dee · Feb 17th, 2008, 20:12

If it comes to it here's some more part numbers LOL
9gn1.tmp.jpg

I only say that because I may be looking at a new intercooler

stusT5 · Feb 17th, 2008, 20:13

don does a nice big intercooler upgrade george it's on my shopping list somewhere

Feb 17th, 2008, 18:40	#22
Georgey dee Premier Member Last Online: Feb 14th, 2024 18:36 Join Date: Dec 2005 Location: Norwich View Photos By: Georgey dee	You will get a Lambda light if you disconnect the BCS and to be honest, it wont prove much. It does sound like the BCS to me as you had a bit of a symptom 500 miles back and then it cured itself. That could have also been a sticky actuator. I would wack a MBC on or a donar BCS and see if that helps then go from there. Good luck George. PS. I don't 'track' my baby, it's used as the safety car if needs be but I'd rather use someone else's brakes and tires. LOL __________________ HAD; 440 GLT(Loved it), 850 GLT auto(Loved it), S70 2.5T(Nothing but problems!), 850R auto(Loved it!!), S60 D5 SE (Nothing but problems!) GOT; S60 D5 SE Lux Auto RAF Marham Track Day Co-Ord'

Feb 17th, 2008, 20:09	#27
Georgey dee Premier Member Last Online: Feb 14th, 2024 18:36 Join Date: Dec 2005 Location: Norwich View Photos By: Georgey dee	Here are some part numbers for you 2x05.tmp.jpg You can see that most of the pipes are the same part number and are sold a meters __________________ HAD; 440 GLT(Loved it), 850 GLT auto(Loved it), S70 2.5T(Nothing but problems!), 850R auto(Loved it!!), S60 D5 SE (Nothing but problems!) GOT; S60 D5 SE Lux Auto RAF Marham Track Day Co-Ord'

Feb 17th, 2008, 20:10	#28
irf Member Last Online: Jan 1st, 2014 13:05 Join Date: Sep 2006 Location: nw london	yep, i think it's either 3 or 4mm. more likely 4mm. edit. you beat me this time LOL __________________

Feb 17th, 2008, 20:12	#29
Georgey dee Premier Member Last Online: Feb 14th, 2024 18:36 Join Date: Dec 2005 Location: Norwich View Photos By: Georgey dee	If it comes to it here's some more part numbers LOL 9gn1.tmp.jpg I only say that because I may be looking at a new intercooler __________________ HAD; 440 GLT(Loved it), 850 GLT auto(Loved it), S70 2.5T(Nothing but problems!), 850R auto(Loved it!!), S60 D5 SE (Nothing but problems!) GOT; S60 D5 SE Lux Auto RAF Marham Track Day Co-Ord'

Feb 17th, 2008, 20:13	#30
stusT5 850 t5 and r owner Last Online: Aug 21st, 2014 07:28 Join Date: May 2007 Location: epsom View Photos By: stusT5	don does a nice big intercooler upgrade george it's on my shopping list somewhere __________________ www.t5d5.org the no nonsense free speech performance volvo site

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)