My Maestro Turbo woes!!! (Part 2)

[Raptor]

Thanks for all the advice I have received over the last few days via the site and phone calls to trying to solve my total loss of power when the Turbo kicks in at around 3,000 revs. I've got no less than 12 things to try or investigate now so hopefully it will be soon be sorted.

Could I please ask again, however, my query as to the other thing I had noticed which so far has drawn no responses, namely that that there is nothing inside the black and red 3-way junction in the breather which had separated into its 2 component halves – this is described as a regulator valve in the original Rover service manual, Fuel System Turbo Charger p.7. Has something fallen out? The 3 outlets go to a. the 1 way valve in the inlet manifold b. the breather on the engine and oil cap and c. back to the air cleaner.

If anyone can explain what should be inside, any experiences with this part or indeed its part number or source of obtaining one I would be very thankful.

If anyone can shed any light, please respond. I can be reached on 07947 435185 or would be happy to phone you. Cheers.

[G Force]

Could I please ask again, however, my query as to the other thing I had noticed which so far has drawn no responses, namely that that there is nothing inside the black and red 3-way junction in the breather which had separated into its 2 component halves – this is described as a regulator valve in the original Rover service manual, Fuel System Turbo Charger p.7. Has something fallen out? The 3 outlets go to a. the 1 way valve in the inlet manifold b. the breather on the engine and oil cap and c. back to the air cleaner.

.

As to what is inside the valve, could not say what the mechanism looks like but I can confirm that it should have inside a two way device and should be sealed to atmosphere.

The valve itself is there to redirect crankcase blowby gasses whist under the change between boost conditions and off boost.

When the manifold pressure is low the valve allows crankcase gasses to be drawn from the crankcase into the inlet manifold and burned in the engine. If the valve stuck in this position when the engine was under boost the crankcase could become over pressurised if the manifold check valve also failed, causing high oil consumption and oil leaks.

When the engine is under boost and manifold pressure is high the valve closes the venting direct from crankcase to manifold, and vents the crankcase gasses to the downstream side of the air filter box. The crankcase gasses then get drawn into the engine and burned in this manner.

The valve is also fitted to MG Metro turbo and the Rover 820 620 220 Turbo engines.

[E_T_V]

The red valve is the PCV valve, it essentially controls the pressure in the crankcase. If it is faulty (many are), then it'll cause excessive oil consumption rather than any running problems.

If you can't find a spare then you can probably find one from a scrap turbo diesel car as these also have them fitted.

[E_T_V]

D'oh too slow!