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924 and 924 turbo market watch - oz market


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  • 5 weeks later...
2 hours ago, James P said:

I had a chat to this guy 6 months ago, genuine guy.. car has some issues but all can be fixed 

 https://www.gumtree.com.au/s-ad/mount-eliza/cars-vans-utes/1981-porsche-924-turbo-coupe-project-95-/1210556757

 

Needs money to be spent ... and not a little amount ... just from the photos there are a number of parts not original and the fact that Hartech can't get it running right is a little worrying ...

Still ... it is a 924T in the right colour! 😍

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4 minutes ago, 3legs said:

Hey Dreamer you are right. The 81 had the filler cap covered (my 1st Porsche was a brand new 1981 924).

I notice the ad must have been updated as I can't see a photo of that side of the car.

Must have read your post😄

Let him read this then ....

I don't reckon it's a genuine 924T ... for a couple of reasons ...

That fuel filler is definitely pre '79 and the 924 turbo only came out in late '79 and I'm pretty sure it also had a filler lid.

The under dash air conditioning unit is older than '81 ... it would have had a compressor and in dash switch.

When the other photos were up I struggled to see the NACA duct in the bonnet ... I couldn't see the whole thing but enough to wonder where it was ...

Some due diligence required on this one ... although I could be wrong. More photos needed ...

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On 26/02/2019 at 17:04, Dreamr said:

Some due diligence required on this one ... although I could be wrong. More photos needed ...

Ask and ye shall receive .... More photos added to the 924T advert  ..😁

So ... it has a series 2 turbo engine .. the VIN is in the right spot for an '81 model (it was elsewhere for 1979 and 1980) .. it has the turbo spoiler and inside sill stickers as well, so my guess is that it is a 924T and I'm the first to say that I was wrong ...

I'm totally stumped by that fuel filler though ... 🤔

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I agree that the fuel filler doesn't make sense. I believe the cover was standard on all 924 from '79, so no turbos should be cover less.

The turbo pipe is from a series two, so it can't be some weird initial production version. I reckon the car was 'merged' with an older 924 following an incident. That's the only thing that makes sense to me. I would approach this car very carefully.

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7 minutes ago, bear924 said:

I agree that the fuel filler doesn't make sense. I believe the cover was standard on all 924 from '79, so no turbos should be cover less.

The turbo pipe is from a series two, so it can't be some weird initial production version. I reckon the car was 'merged' with an older 924 following an incident. That's the only thing that makes sense to me. I would approach this car very carefully.

I've looked hard at the photos and there is more I'd like to see ... but the VIN number is stamped on the firewall and not on the strut tower ... its also the 16 digit one .. that makes the body 1981 + ..

Just the fuel filler not making sense!!

UPDATE ...  I just went back to the advert to check the photos again and they have been cropped and also changed ... don't know what's going on here but there is something being hidden ... yesterday part of the VIN was there which is how I knew it was on the firewall  ... now it's gone!

I now definitely think due diligence is required!! ...

 

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  • 1 month later...
On 19/02/2019 at 18:36, Dreamr said:

Needs money to be spent ... and not a little amount ... just from the photos there are a number of parts not original and the fact that Hartech can't get it running right is a little worrying ...

Still ... it is a 924T in the right colour! 😍

Hi Dreamr, I have bought this 924t and am interested to know which parts you noticed that need to be replaced, to bring it back to original

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4 hours ago, Ant924t said:

Hi Dreamr, I have bought this 924t and am interested to know which parts you noticed that need to be replaced, to bring it back to original

Congrats on the purchase! .. yours is a series 2 ...  I have a series 1 in red ... 😍 

See if you can find out from the previous owner when the timing belt was last done. It is only a $20 part but will destroy the engine if it snaps. I just had my belt, water pump and rollers replaced and its the best piece of mind I could buy. I remember him saying that it has been rebuilt but rubber perishes with age, not just use. It really should be done sooner rather than later if needed.

I would also look at replacing the "Mercedes" fuel distributor with a "Porsche" one ... they could be compatible but it's a place to start. There are a number of other things to check as well but If you need to get it looked at for the rough idle, you'll need to find someone that knows and understands CIS fuel injection systems. They are dinosaur technology ... That's not saying one can't learn about it, but they are specialised.

I honestly can't remember what parts needed changing as it was too long ago but there wouldn't be anything that can't be found. 

At the end of the day, you have an Aussie delivered matching numbers example. Rare car and a TON of fun to drive when running right ... they have increased in popularity and price over the last few years so you really can't go wrong ...  if I had of been in the market for one, I'd have jumped on it ...

Hit me up if you need any more information ... there are also a lot of other 924T owners on here that will chip in with info if you need it ... 

 

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Good buy I 

9 hours ago, Ant924t said:

Hi Dreamr, I have bought this 924t and am interested to know which parts you noticed that need to be replaced, to bring it back to original

Good buy I feel Ant. The CIS fuel system is super reliable once sorted, however can prove difficult if not sorted. Challenge with turbo charging is that as boost increases the CIS system needs to move the AFR to a richer mix. As the CIS is an open loop (from a O2 point of view), there is no trim as per modern cars. 

I would:

- Replace timing belt. These cars have an interference engine. Non turbo do not. 

- Install original fuel distributor. I understand it was part of the sale.

- Look for vacuum leaks. I purchases a smoke machine for this task. If you have vacuum leaks, your car will not run quite right. 

Then see how it goes.

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12 hours ago, bear924 said:

Good buy I 

Good buy I feel Ant. The CIS fuel system is super reliable once sorted, however can prove difficult if not sorted. Challenge with turbo charging is that as boost increases the CIS system needs to move the AFR to a richer mix. As the CIS is an open loop (from a O2 point of view), there is no trim as per modern cars. 

I would:

- Replace timing belt. These cars have an interference engine. Non turbo do not. 

- Install original fuel distributor. I understand it was part of the sale.

- Look for vacuum leaks. I purchases a smoke machine for this task. If you have vacuum leaks, your car will not run quite right. 

Then see how it goes.

Thanks for the advice bear,

Brought it around the block last night, on start up it idles ok but you can here a miss. When you apply throttle it is hesitant and you need to keep stabbing the throttle to keep the revs up. Goes back to idle fine.

When checking the oil, it has the smell of petrol!?

I have seen rebuild kits for the original Fuel Distributor, for between $70 and $120 are they difficult to rebuild and does the brand of kit make much difference?

Also thinking of replacing all the vaccum lines (its like a bowl of spaghetti in there!) as well, to eliminate that from the equation.

 

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40 minutes ago, Ant924t said:

Thanks for the advice bear,

Brought it around the block last night, on start up it idles ok but you can here a miss. When you apply throttle it is hesitant and you need to keep stabbing the throttle to keep the revs up. Goes back to idle fine.

Blocked fuel injector??

While you are eliminating things, you should remove them and check / unblock them ....

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5 hours ago, Ant924t said:

Thanks for the advice bear,

Brought it around the block last night, on start up it idles ok but you can here a miss. When you apply throttle it is hesitant and you need to keep stabbing the throttle to keep the revs up. Goes back to idle fine.

When checking the oil, it has the smell of petrol!?

I have seen rebuild kits for the original Fuel Distributor, for between $70 and $120 are they difficult to rebuild and does the brand of kit make much difference?

Also thinking of replacing all the vaccum lines (its like a bowl of spaghetti in there!) as well, to eliminate that from the equation.

 

Rather than rebuild the distributor, I would send it to http://www.k-jet.biz/ and get it overhauled. I've used this company and service was good. The warm up regulator is the real brains of the CIS. Suggest you rebuild distributor and then buy a CIS fuel injection test kit and make sure it is set up correctly.  There is nothing that can be adjusted with the WUR however they can be overhauled by KJET however I suggest you hold off.  My guess is that as you put your car under load it is losing control of its AFR and either going too rich or too lean. The fuel smell suggests too rich, however that's verging on a wild guess. You may want to consider measuring your AFR, I've installed one in my car and it gives you some very valuable information. Also worth taking the car to a dyno ... not to measure HP, more to measure AFR over the range. Once you get your AFR set right, the car will run right. I wouldn't do that until you get the fuel distributor replaced ... the distributor is the wild card that you need to remove.

You could also find a specialist. Challenge is finding one who actually knows what they are doing and is willing to work on a non 911 Porsche. 

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