hi all. can anyone help i have no boost , ive changed the bcs and maf sensor. no engine light on. cant see any splits in pipes it revs and idles ok just so slow. no smoke either, would it smoke if the turbo was knackered? cheers
hi all. can anyone help i have no boost , ive changed the bcs and maf sensor. no engine light on. cant see any splits in pipes it revs and idles ok just so slow. no smoke either, would it smoke if the turbo was knackered? cheers
Have got a mbc, is it plumed in correctly ie swap vac pipes round
now you see me OPPS now ya dont lololol
no mbc, completely standard apart from exhaust. i was driving along all fine and the next time i accelerated it was dead, it struggles to keep up with a transit.
What sort of Volvo do you have?
sorry forgot to say. its a 1997 v70r
Sounds like the bcs is knackered, if you take the vac line off the actuator she should "boost"
BUT NEVER DO THIS WITHOUT A BOOST GAUGE AS SHE CAN/WILL BLOW if you dont let off the gas! if she boosts with the vac line off it will prove the bcs is knackered.
either fit a mbc or a new BCS valve.
If she still doesnt boost it could be a Duff actuator, or a torn recirc valve.
adam280 (Wednesday 2nd November 2011)
or a sticky waste gate, if it sticks in the open position, it feels fine till you go to accelerate then it goes dull.
19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...
310.2bhp / 333ft/lb
2016 Swedish Day UK "Best Modified Swede"
SOLD
Got an old discovery now.
Perhaps the actuator arm has come off the pin on the wastegate?
Was it a sudden loss of boost?
1996 Olive Green 850 AWD - Follow the Project - Forged rods, 19T, big blue injectors, 960 TB, 3.25" MAF, Ostrich, 608 binary, arduino data display, active exhaust control with Focus RS tips, 320mm front brake conversion.
1996 Nautic Blue 850 AWD - Failed its MOT, now it's a donor for the green thing.
2004 Sapphire Black S60 D5 - The new daily hack.
I had no boost on my t5-r, checked everything and in the end it turned out the cat had collapsed, removed the cat and the boost returned immediately.
Quick test is to drop the exhaust off the turbo and see if goes any better
hope this is of help..
adam280 (Wednesday 2nd November 2011)
it wasnt sudden, i was on a 15 mile journey all ok for the first 10 just plodding along then went to floor it and it was gutless. ive double checked the pipes no splits that i can see or feel. i can slightly move the actuator rod backwards and fowards, should this be solid? i have already changed the bcs. thanks adam
The actuator rod should move a little along its length and it should take some effort as it is spring loaded, but the rod shouldn't move side to side. When I say it takes some effort, if try to move the rod on my turbo I can only move it about about 5mm just using my finger and thumb.
1996 Olive Green 850 AWD - Follow the Project - Forged rods, 19T, big blue injectors, 960 TB, 3.25" MAF, Ostrich, 608 binary, arduino data display, active exhaust control with Focus RS tips, 320mm front brake conversion.
1996 Nautic Blue 850 AWD - Failed its MOT, now it's a donor for the green thing.
2004 Sapphire Black S60 D5 - The new daily hack.
the rod on the actuator is quite loose it moves side to side and up and down. i can move it about 7~8 mm. i cant see all the actuator because of the heat shield. will a normal t5 one fit the v70r? are they hard to fit
Thats not right then, it should be fixed tight. You need to get the heatshield off to get a better look at the other end of the actuator rod, its only a few bolts and it slides out the way (no need to take it out from behind the engine). Its just a bit of a pain to get to one of the bolts down the water pump end of the engine.
It could possibly be as simple as the end has come off the actuator arm and just needs putting back on with a new locking pin.
1996 Olive Green 850 AWD - Follow the Project - Forged rods, 19T, big blue injectors, 960 TB, 3.25" MAF, Ostrich, 608 binary, arduino data display, active exhaust control with Focus RS tips, 320mm front brake conversion.
1996 Nautic Blue 850 AWD - Failed its MOT, now it's a donor for the green thing.
2004 Sapphire Black S60 D5 - The new daily hack.
adam280 (Thursday 3rd November 2011)
hope so mate will check 2moro
Fitted my new actuator today and the car is just the same,just glad I didn't buy a new one. gonna have to check the cat.
adam280 (Friday 2nd December 2011)
starting to sound like a cracked turbo
19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...
310.2bhp / 333ft/lb
2016 Swedish Day UK "Best Modified Swede"
SOLD
Got an old discovery now.
adam280 (Friday 2nd December 2011)
Oh great, what's the best way to tell if the turbos knackered?
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