EMERGENCY! 1999 Monaco Diplomat Near-Total Loss of Power - Turbo?

[Skip426]

I didn't see you post , with pictures.

First photo, on the drivers side of the engine, the aluminum 90 degree elbow is the turbo outlet to the first flex connector, orange silicone, to the CAC special clamps are shown.
On the passenger side of the engine, the flex connector from the CAC is to the 90 degree attachment to the intake manifold. If you follow those tubes you will find similar connections at the CAC it's self. from the look of the picture , they will be near the bottom or the radiator.

From the look of the top of the turbo you will not be able to see the turbo vanes on the pressure side of your turbo.
I'll look for a better turbo photo, closer to your application.

[ereadingrv]

Okay, now that we have some understanding of how the turbo part is put together...here are a couple of more close-up pics.

The first one is a closeup of the turbo outlet at the top of the turbo. There appears to be a "break" or something, but we can't tell if it's SUPPOSED to look that way, or not. I'm guessing not, as the soot previously mentioned seems to be originating from that point.

So assuming it's bad, would that mean the connector/seal bracket is broken, or that we need a new intake?

The second picture shows a closeup of one end of the CAC connector. It does seem lower on the CAC pipe, but not off, and not leaking. In other words, it could be readjusted and tightened, but I'm not sure this is the problem.

[Steve Ownby]

Originally Posted by Skip426

I didn't see you post , with pictures.



First photo, on the drivers side of the engine, the aluminum 90 degree elbow is the turbo outlet to the first flex connector, orange silicone, to the CAC special clamps are shown.

On the passenger side of the engine, the flex connector from the CAC is to the 90 degree attachment to the intake manifold. If you follow those tubes you will find similar connections at the CAC it's self. from the look of the picture , they will be near the bottom or the radiator.



From the look of the top of the turbo you will not be able to see the turbo vanes on the pressure side of your turbo.

I'll look for a better turbo photo, closer to your application.

Skip has identified where to look for two more of these flex connectors. They are most likely there and they are why you can shake the piping. You may have to go under the coach & look up toward the radiator. There will be a clamp connecting the plumbing to the outlet of the turbo. You may have to reach up to the turbo from below to make sure that clamp is in place.

[oakcreekeric]

Originally Posted by ereadingrv

Attached is a picture with two sections circled, one red and one blue. Are we in the general neighborhood? What area are you referring to? Thanks, and apologies for us being ignorant.

Blue circle.. it appears the hose has moved.. It looks as if you could loosen the clamp and bring the hose closer to the ridge on the turbo housing

[markmiiler]

in the blue circle at the clamp at the bottom of circle appears to be blown off. When pressure builds up it will blow that hose of and lease your turbo pressure. loosen clamp and push all the way up onto metal pipe.

[ereadingrv]

Originally Posted by markmiiler

in the blue circle at the clamp at the bottom of circle appears to be blown off. When pressure builds up it will blow that hose of and lease your turbo pressure. loosen clamp and push all the way up onto metal pipe.

Would this blowing off under pressure result in steady white smoke?

[mriderLeon]

Originally Posted by ereadingrv

Attached is a picture with two sections circled, one red and one blue. Are we in the general neighborhood? What area are you referring to? Thanks, and apologies for us being ignorant.

Should the soot be there? Why would there be soot in the intake of a diesel?

It shouldn't have a leak there, but if there is, it shouldn't have soot going through the turbo. I don't know the exact workings of this engine, but shouldn't diesels only inhale clean air?

Need an expert to chime in here.

[Rburian]

Is there black smoke coming out the exhaust?, if so, check the exhaust brake to see it the valve is stuck closed.

[96 Wideglide]

Looks to me like that clamp has recently broke.

[Steve Ownby]

Originally Posted by ereadingrv

Would this blowing off under pressure result in steady white smoke?

Steady white smoke is from unburned fuel. Can be many causes. Could point to air/fuel ratio being out of whack because of an issue with the turbo plumbing. Also much more common when engine is cold which it would be now.

[JohnBoyToo]

I think the thing in the blue square that you don't think is the problem IS the problem...
the HIGH pressure could easily push that off the end of the pipe when the engine twist and the boost comes up...
that's the first thing I would try... a wrench, socket and 5 minutes could loosen the clamp and allow you to push it further on and tighten it back

and with that much movement, the clamp COULD have slit the hose...

making it a non-boosted, normally aspirated engine and an N/A diesel is a DOG

[Kuzzy]

Originally Posted by 96 Wideglide

Looks to me like that clamp has recently broke.

I think Wideglide is talking about the v- band clamp and it does look broken. You should not be able to get any movement of the turbo assembly. The v-band clamp is not reusable. You probably will need a new one. The top spring loaded clamp looks like it should be loosened so you can slide the rubber hose up against the stopper and then retightened.
This can all be done by you with a few wrenches and sockets.


Dave

[Kuzzy]

Another thought. If the turbo failed you would see a lot of black smoke from your exhaust under acceleration. If that happened you should not drive your coach as you could damage the engine. You would know right away if the turbo was gone.


Dave

[C-PHartley]

If you have an exhaust brake, verify that it is not stuck closed.


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