Ben's 1978 Porsche 924

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Ben's 1978 Porsche 924

Postby Grillage » Mon Jul 05, 2021 8:09 pm

Hi all,
I found another project a few months back. This one is pretty cool. 1978 924 Limited Edition.

The “Limited Edition” was the special car they made in 78. 77 got the Martini, 79 got the Sebring, 80 the Le Mans - etc.

The 78 LE is different in that it has:
Dolomite Gray with black and white pin stripes
Fog lamps
A special anti-roll bar
Pasha seats
Leather Steering wheel
Rear speakers
Specific wheels
I think thats it

Here’s the brochure:
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Anyway, the car I bought popped up on craigslist and I managed to be the first person to look at it. The seller was the second owner having bought it from a doctor at the hospital he works at in 1986. That doctor bought it new in 78. What’s crazy about that is that the doctor lived about 12 houses from where I did during my time living in Fairfield OH where I lived from 78 to 86 — same years as this car. Crazy!

Anyway, the PO tells me when I come to look at it that it broke a fan belt and he parked it in his garage in 1998 - currently the car has 34,000 miles on it. The license plate shows a ‘98 registration and there is a broken belt in the engine bay (though there is no fan belt on this car, what’s broken is the water pump and alternator belt - but Ill get to that in a minute

He also tells me the car has those “checkerboard seats” which he never liked so he put lambswool seat covers on them in 86. I basically ripped the covers off when he mentioned it had the pasha seats and they’re pristine.

I offer the guy his asking price just as another guy is arriving to look at the car and I bring it home.

So here’s what I got once I cleaned it up a little bit:

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1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

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Re: Ben's 1978 Porsche 924

Postby Grillage » Mon Jul 05, 2021 8:17 pm

Here's the Engine Bay:
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Will get into the problems here in a seond

The car came with this vintage MOMO Prototipo steering wheel but when I was doing the paperwork and handing over the cash he remembered he stll had the original wheel in a box:
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the car has dealer installed Air Conditioning from DPD that still had a little bit of R12 believe it or not. Will do my best to get this working and on R134
AC was a factory option but it seems this aftermarked AC was pretty common as well.
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The bag for the roof is still supple leather and seems like it was never used. I was thrilled to discover it still there:
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Also, The car has a plaque that reads "This car made especially for AC Llenado M.D." on the center console. It popped off when I started cleaning but I will probably put it back on.
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CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Re: Ben's 1978 Porsche 924

Postby Grillage » Mon Jul 05, 2021 8:32 pm

So, What's wrong with it?

I don't totally know yet but there were a couple things that were obvious

The "broken fan belt" was a broken water pump and Alternator belt. this broke because the water pump was frozen. Not only that, but there was a bunch of sludgy sandy mess behind the pump once I got it off. Once I discovered that, I decided to just pull the motor out so I could flush the coolant passages and also clean everything up.

Pulling the motor in my '86 Coupe GT and cleaning every single thing was a really great experience and made that car really special. That contributed to me doing the same for this car.

So out it came!

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I got the block apart and painted it with POR15
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Got the aluminum parts super clean as well:
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Now all ready to start re-assembly
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Except my dumb ass broke something:
Was torquing down the cam towers after I replaced Valve stem seals and I got one staring to tighten down unevenly. I didnt realize it and it made the stud break its mount and the cam cap
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So I found another head complete from a junkyard and I have it out to be looked over and cleaned right now
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Grillage
 
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Location: Cincinnati, OH

Re: Ben's 1978 Porsche 924

Postby Grillage » Mon Jul 05, 2021 8:43 pm

So since the car has sat for so long, I decided to send all the CIS stuff out, deal with the fuel system so I could minimize any fuel issues as I go

I sent this stuff all to CIS Flowtech in Fairhope AL and got it back about 4 or 5 weeks later:
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Having sent them my 928 stuff, I realized that it made more sense to just replace the injectors rather than pay them to test them and end up buying them anyway

So I drained the tank completely and it wasn't actually that bad. The PO told me he had tried to deal with the fuel tank before he sold it by draining it dry and adding good fuel a year or two ago. so there wasn't much there but it wasn't too awful.

I replaced the fuel pump and filter after the pump tested bad.

The CIS stuff was also really really varnishy. That's why I sent it all out originally. I knew it would be bad.

I needed to replace all the tires as they dated to 88 and were all installed with the "inside" text on the outside of the wheels - which was a little weird.

So the plan from here is to get it reassembled and see if I can tame the CIS to make it run! It's really a beautiful car with low miles and in great shape. Can't wait to drive it!
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Grillage
 
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Location: Cincinnati, OH

Re: Ben's 1978 Porsche 924

Postby PRY4SNO » Tue Jul 06, 2021 8:59 pm

Gonna be another great project to follow! Looking forward to updates and glad it found the right home.
Find me on Instagram @pry4sno

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Re: Ben's 1978 Porsche 924

Postby Onwardtothestars » Tue Jul 20, 2021 10:29 pm

Awesome. I love 924's.

Are my eyes deceiving me or was the head you pulled off a 931 head? It looks like there's a combustion chamber and im pretty sure the NA 924 heads were completely flat with no chamber ...
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Re: Ben's 1978 Porsche 924

Postby Onwardtothestars » Tue Jul 20, 2021 10:47 pm

since you have it apart you should get some of the European high compression pistons, hone and re-ring it.
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Re: Ben's 1978 Porsche 924

Postby Grillage » Sat Jul 24, 2021 7:26 am

Onwardtothestars wrote:since you have it apart you should get some of the European high compression pistons, hone and re-ring it.


Too late now but that’s a great idea. I have it back together and running now!
Will update soon
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Location: Cincinnati, OH

Re: Ben's 1978 Porsche 924

Postby Grillage » Sat Jul 24, 2021 7:28 am

Onwardtothestars wrote:Awesome. I love 924's.

Are my eyes deceiving me or was the head you pulled off a 931 head? It looks like there's a combustion chamber and im pretty sure the NA 924 heads were completely flat with no chamber ...


I don’t think it is. The car is bone stock other than the Momo wheel.
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Grillage
 
Posts: 857
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Location: Cincinnati, OH

Re: Ben's 1978 Porsche 924

Postby Onwardtothestars » Sun Jul 25, 2021 10:27 am

I think I follow you on Instagram?
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Re: Ben's 1978 Porsche 924

Postby Grillage » Sun Jul 25, 2021 10:36 am

I’m not on instagram - I’ve been posting on a couple 924 facebook pages though?
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928

PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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