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sparkle28
Joined: 29 Feb 2012
Posts: 30
Location: UK
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 Posted: Thu Mar 01, 2012 5:21 am Post subject: 924 gt carrera replica project |
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So i've started my new project.. should keep me busy for a while. I started with a 1982 924. Its not a turbo so i plan i lightening it quite alot with some kirbey seats, poly windows inc the rear hatch, and of course grp panels on the front. Its much scruffier than it looks in the pics so lots of work to do.
 it doesn't go anymore. i drove it up and doewn the road a couple of times but it stalled. its showing a battery warning but i presume it does that anyway if you stall. have not really bothered looking into it yet. I know nothing about engines so will struggle with that.
I started today after receiving the car this morning, the pics show how far i got today.
I suppose I'd better get it running before i do anything else. I'm also going to fit some front discs and pads while the arches are off.[/img]
Last edited by sparkle28 on Thu Mar 01, 2012 7:29 am; edited 1 time in total |
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tyfighter123
Joined: 19 Jan 2010
Posts: 551
Location: Colorado
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| Posted: Thu Mar 01, 2012 5:41 am Post subject: |
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Welcome aboard and good luck!
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car) |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Thu Mar 01, 2012 6:53 am Post subject: |
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I love new project ambition, and I mean that in the best possible way!!!!
Welcome aboard!
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erstwhile owner of just about every 924 variant ever made |
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Carrera RSR
Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
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| Posted: Thu Mar 01, 2012 7:52 am Post subject: |
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Here's something to aim for
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252 |
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sparkle28
Joined: 29 Feb 2012
Posts: 30
Location: UK
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| Posted: Thu Mar 01, 2012 8:05 am Post subject: |
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| very nice!. i'll see how close i can get to that one. i like pop up lights though. |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Thu Mar 01, 2012 8:10 am Post subject: |
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FWIW, pop up lights are correct for the Carrera GT ... the fixed headlights were only on GTS / GTR 
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erstwhile owner of just about every 924 variant ever made |
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kcoyle
Joined: 15 Jan 2011
Posts: 712
Location: Long Island, NY
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| Posted: Thu Mar 01, 2012 8:17 am Post subject: |
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Man, I would love to be in a financial position to buy all the Euro front end parts you just took off, they seem to be in good nick. Damn US bumpers. 
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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. |
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Joes924Racer
Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!
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| Posted: Thu Mar 01, 2012 12:21 pm Post subject: |
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| Carrera RSR wrote: | Here's something to aim for
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yea this ones purdy .. i bet a chick owns it er what a chick dude.
_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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Ian89C4
Joined: 01 Apr 2011
Posts: 561
Location: North Carolina
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| Posted: Fri Mar 02, 2012 4:36 am Post subject: |
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Reminds me of when I got mine in the garage and started taking things apart, and then went.....wait a minute....I think I'll need to leave that on there for the time being....
Good luck and welcome aboard!!
Can't wait to see the pics of the progress.
Cheers
_________________
Ian Edgerly
North Carolina
Current:
1981 924 SCCA/ChampCar Weissach Race Car ("Serenity")
1987 924S ChampCar Endurance Car ("Der Weg")
1980 924 Euro ("Wahala") |
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sparkle28
Joined: 29 Feb 2012
Posts: 30
Location: UK
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| Posted: Fri Mar 02, 2012 4:44 am Post subject: |
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well i charged up my battery which was completely flat and put some fresh fuel in it. It starts now but runs rubbish. The only way i can keep it from stalling is to keep the revs about 2000rpm, and this speed it runs very roughly.. and if i take my foot of the accelerator the idle drops quickly to about 500 rpm, the car shakes and cuts out.
my haynes manual says it could be fuel air leaks, egr, injectors, sparks/plugs or a busted head gasket- in that order i think. Anyway out of all of that i only really know how to check the spark plugs and the two most accessable ones were stuck fast so i failed on all counts.
are these engines worth fixing or is it cheaper to have a second had 944 2.5 engine put it? I suppose the 944 engine uses all different auxiliaries? which would make an engine swap uneconomical?? |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Fri Mar 02, 2012 5:00 am Post subject: |
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Define "uneconomical"
Seriously, everyone has a different idea of what's worth doing or not. The short version: a 2.5L swap is not going to be an option unless you have deep pockets, access to fabrication equipment & skills, and a ton of time.
As for the rough running, it is almost certainly suffering from vacuum leaks, and you should start there before doing anything else. If you try adjusting the fuel system before fixing vac leaks, you'll only make things worth. Find and eliminate all vacuum leaks and then go on to the next item on that list from Haynes.
Or better yet, follow the procedure in this topic (eliminating the turbo-specific stuff):
http://www.924board.org/viewtopic.php?t=28790
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erstwhile owner of just about every 924 variant ever made |
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sparkle28
Joined: 29 Feb 2012
Posts: 30
Location: UK
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| Posted: Fri Mar 02, 2012 5:11 am Post subject: |
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hmm its got no turbo. i wish it did. when you say vaccuum leeks you mean check all the black rubber tubes that i can find to see if any have come loose? oh er. ok an engine swap is not an option.
Last edited by sparkle28 on Fri Mar 02, 2012 5:43 am; edited 1 time in total |
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kcoyle
Joined: 15 Jan 2011
Posts: 712
Location: Long Island, NY
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| Posted: Fri Mar 02, 2012 5:20 am Post subject: |
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Correct, or better yet replace them all. They are most likely old and cracked and may be leaking even if they are tight at the fittings. Its cheap and worth the time to start fresh instead of guessing.
_________________
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. |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Fri Mar 02, 2012 5:21 am Post subject: |
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| sparkle28 wrote: | | when you say vaccuum leeks you mean check all the black rubber tubes that i can find to see if any have come loose? |
Not just loose. They could be completely disconnected by a previous owner, by you inadvertently fiddling under the hood, or they could be disintegrating, cracked or otherwise failing due to old age, abuse, & neglect.
There are several 3.5mm, 12mm, and 19mm tubes, some black, some cloth braided, some with cloth braid connection sections of white tubing. The brake booster, the main boots from the AFM to the throttle body, all of the plastic T's (I've had the T portion crack and break without me being aware of it, introducing a vac leak even after I'd replaced all the lines.
You have to check it all, and you have to be highly methodical so that you don't miss anything, or forget where pieces go during the process.
Other places for vac leaks are the o-rings to the injectors, which are probably shot; the injector inserts themselves (if they're not an amber-tan-orangy color, you have old style ones that need to be replaced); the intake manifold gasket; the cold start valve gasket; the throttle body gasket; and (hopefully not) the head gasket.
Replace ALL of the lines first. You need to do it anyway, and even if it doesn't cure all of the problem, it will eliminate many variables, and will help the car run better in the long run. Once you've done those, use a spritzer with water and spray around the areas I indicated while the car is running. If the car stumbles when you spray the water, it means air is being sucked in and you have a vac leak.
BE METHODICAL. Write yourself a checklist based on the stuff in this post (as well as looking at and tracing all of the lines in the engine bay). Then one by one replace every line and check every interface that could leak using the spray bottle technique (you can alternately use carb cleaner in place of water, which would cause the engine to race rather than stumble...).
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erstwhile owner of just about every 924 variant ever made |
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sparkle28
Joined: 29 Feb 2012
Posts: 30
Location: UK
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| Posted: Fri Mar 02, 2012 9:09 am Post subject: |
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ok i found some dodgy stuff. the injector lines are badly cracked on the rubber outer casing. inside these black rubber casings are clear poly tubes going to what i think are the injectors. i peeled back some of the cracked black rubber and found they were wet. At first i thought they had coolant on them- as they do run directly past the coolant tank.
but is this more likely to be fuel? is there a special way of changing these or can i just pull these off and then fit newer lines? or does that make an air clot in the system? |
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