TD42 Losing boost pressure

Quote:

---

Originally Posted by Hodge

Been locked down too long. Taking it for a drive and absolutely sink it. She'll boost in no time I reckon. lol

---

Haha tried that.

Quote:

---

Originally Posted by Maxhead

….anyone say Y62[emoji23]


Sent from my iPhone using Tapatalk

---

Me! Me! Me! It was Me!......

Quote:

---

Originally Posted by mudski

Update.

My Patrol is just sitting here. Lol.
Boost controller is fine, so are all the hoses and the IC is fine. Changed out the fuel filter and it didn't help. Theres no gauze screen on the inlet line going into the pump. So its either the motor or injector pump. I assume. In lockdown so no rush.

---

I would say yoy have a boost leak for sure. That explains the lack of boost and the black smoke as it is tuned for more boost so over feeling now. I woyld be tracing every boost hose looking for a split or blown hose . You may fine it just with the bonnet up and someone revving up the car.

Quote:

---

Originally Posted by MudRunnerTD

I would say yoy have a boost leak for sure. That explains the lack of boost and the black smoke as it is tuned for more boost so over feeling now. I woyld be tracing every boost hose looking for a split or blown hose . You may fine it just with the bonnet up and someone revving up the car.

---

Already done this mate. Replaced every boost hose in there now. The only thing I haven't checked is the intercooler. But being a barely used Cross country Ic I doubt its the cause. I will look more into a few things when the weather warms up.

Big Stogie Cigar trick possibly Mark Mate[emoji106][emoji106]
Smoker or not, fill your cheeks with a massive cloudy gob full and pressure witness visually test that aluminium radiator thingy [emoji23]


Sent from my iPhone using Tapatalk

Have you taken a reading directly from the compressor with the wastegate firmly closed?

Quote:

---

Originally Posted by jff45

Have you taken a reading directly from the compressor with the wastegate firmly closed?

---

No. How do I do that?

Connect the gauge hose directly to the compressor housing outlet and remove the hose on the wastegate actuator.
Don’t go silly with it in case it boosts high before it overcomes the actuator spring

The compressor outlet will currently be connected to your boost controller which then feeds back to the actuator.
I assume your gauge hose is connected to your IC or manifold?

Quote:

---

Originally Posted by jff45

Connect the gauge hose directly to the compressor housing outlet and remove the hose on the wastegate actuator.
Don’t go silly with it in case it boosts high before it overcomes the actuator spring

The compressor outlet will currently be connected to your boost controller which then feeds back to the actuator.
I assume your gauge hose is connected to your IC or manifold?

---

Yes my gauge reads from a port in the inlet manifold. Then another port T'd (one to the injector pump, one toward the boost controller), then to another T, (one to the boost controller and the other to the wastegate actuator) Apparently its plumbed like this for high boost applications.

So what should i see doing as you suggest John? What shouldn't I be seeing?

Quote:

---

Originally Posted by mudski

Yes my gauge reads from a port in the inlet manifold. Then another port T'd (one to the injector pump, one toward the boost controller), then to another T, (one to the boost controller and the other to the wastegate actuator) Apparently its plumbed like this for high boost applications.

So what should i see doing as you suggest John? What shouldn't I be seeing?

---

You will be taking out the intercooler. straight off the actuator will show you the boost output at the turbo