147 1.9 JTDm Inlet Manifold Help - Alfa Romeo Forum
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147 1.9 JTDm Inlet Manifold Help

I've a 2009 147 Ducati that has the Magneti Marelli plastic inlet manifold with the metal swirl flaps. I'm looking into doing a swirl flap delete but I can't find anywhere that sells the blanking plugs for this manifold, only the older metal Pierburg manifold. Does anyone make a kit for this manifold?

As far as I'm aware, the plastic manifold cannot be exchanged for the metal Pierburg manifold, is this correct?

Someone told me that Autolusso sell blanked manifolds but I can't find them on their site and I can't find anyone else selling any, can anyone point me in the right direction for any of the above?
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There’s no blanks for that manifold,you remove the mechanism along with flaps and then tap the holes out to M6 or M8 (can’t remember size) and insert some cap screws with Loctite on them. I also put o ring under heads to make sure sealed.
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Sounds like a good idea.
I think I'd probably put some Tiger Seal on the threads before fitting though.
Easy enough to tap threads into the soft manifold. M8 sounds a bit on the large size.
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It was probably M6 then it’s been best part of 18 months and with my old brain I can’t remember the details
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You can swap the metal manifolds for the plastic ones, did it to my old 147, fitted a 156 cf2 manifold with no flaps.
The only difficulty is in leaving the actuator motor in place so no faults are thrown up, i just made a bracket that held it under the manifold and never had a problem.
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I drill and tap them M8x1.25. No point buying another manifold, much easier just to remove the flaps, remove the spindles, tap the holes and screw in some bolts.
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I did mine a few weeks ago with the help of this lot and the hardest thing i found was removing the breather / oil catch can bracket on the back of the engine, other than that its a straight forward job and mine goes a lot better now its done
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Thanks all. I'm going to get a quote from my garage, I've had enough of working unseen down the back of this engine, replacing the clutch master cylinder was bad enough.
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Don't let them tell you the cambelt needs to come off. It doesn't (unless it needs changing). The HP fuel pump pulley can be bolted to the pump mounting bracket, then the pump removed, leaving the belt in place.

It's not a bad job at all aside from cleaning the accumulated gummy black filth out of the manifold. The vacuum oil separator is easy enough to take off, once you figure out where the 3 bolts are. Replacing it could be a lot harder, but I taped each bolt into a long socket as a 'handle' to get them started, which made it a piece of cake.

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