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FelixP · Joined: 01 Mar 2013 Posts: 22 Location: Cardiff, UK

Hi all,

I've got a Carrera GT replica based on a series 2 turbo:

Which has looked more like this recently:

The headgasket blew and it has been at my local Porsche dealer for a cylinder head refresh and a replacement headgasket. It has been a bit of a challenge, but the car is back together now and apparently a lot better than before. HOWEVER the mechanic heard a rattle in the metering head and when he put a magnet down there, it came out with a 2mm ball bearing. They're worried it's from the turbo, but I would've thought that would go bang by now? Could it be from the metering head? Without knowing where it's from and just wanting to drive my car with some peace of mind again, it's making me nervous!

Thanks in advance for any insight!
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1982 924 Turbo with Carrera GT kit, TMIC & DITC

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

Cant be from the turbo. Maybe its from the metering head..since its rotating, the metering scale should have a couple of ball bearings...i have not opened a metering scale that much tho. Look it up in PET, you should be able to see the components there. If its not there, its a forign object.
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924RACR · Posted: Wed Nov 19, 2014 8:15 am Post subject:

Maybe it's me, maybe it's been a long day, but... why your car has a sad???

(first pic - what has been seen cannot be unseen!)

HINT: look at the driver's seat

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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

kcoyle · Joined: 15 Jan 2011 Posts: 712 Location: Long Island, NY

I don't think there are any ball bearings in the fuel distributor but then again that's one chore I haven't had to deal with yet so maybe an expert will chime in.

Any yes, I see the

as well. looks like he is driving.
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1982 931- Stock with MBC at 8psi

Relax, all right? My old man is a television repairman, he's got this ultimate set of tools. I can fix it.

jason c · Joined: 13 Jan 2014 Posts: 1018 Location: Nwi

There are no ball bearings anywhere in the kkk turbo. That ball is from the control lever assembly.

I see sad black gumby.

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

Not being driven enough ? :p

FelixP · Joined: 01 Mar 2013 Posts: 22 Location: Cardiff, UK

Haha, I never noticed the face before, I can't unsee it now!

Got another problem - The inlet manifold/IC seal blew yesterday. Got a new one and still it keeps popping off? They think it's the mounts for the IC but could there be another problem at play? It's a genuine Carrera GT IC with the proper mounts.
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1982 924 Turbo with Carrera GT kit, TMIC & DITC

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

What the orange o-ring?
You can buy a replacement at any o-ring specializing store.
Make sure you tell them the temp range you need it for.
Mine was also busted, replaced it for beer money 7 years ago.
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FelixP · Joined: 01 Mar 2013 Posts: 22 Location: Cardiff, UK

Yeah, they got one in this morning. With the new o-ring, it's still popping off. I'm worried there's a problem with the boost pressure? The technician said it's very fast now.
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1982 924 Turbo with Carrera GT kit, TMIC & DITC

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

They forgot to connect the line going to the wastegate?
Sorry to say it but it sounds like your mechanics dont know that much about this car.
If you push it with high boost it will blow the HG again pretty soon.

Perhaps they bought the wrong size o-ring too. It should not pop-off anyway because the charge tube is held in place by a bracket and screw.
_________________
Supercharger and EFI kits
https://www.the924.com