Nice work on this one, Sean! I like your wiring work. With what you have found so far, you can probably bet on finding more surprises! George B. in Michigan
I had a 77 VW Scirroco with the Bosch fuel injection setup like on your Porsche. Every year the VW needed a new set of points. What a Difference that made. Seems like the fuel pressure regulator needed a little tweaking but that 1.8 liter motor was sound. Good luck!
A good friend had an '81 Scirocco with the K-Jetronic injection, and I remember that car being a riot! Thankfully the Porsche doesn't have points and is now up and running well. Thanks for checking out the video, and make sure to watch part 2! Sean
YES! I like your wiring repairs!!! Great practices to follow!!! I always soldered my electrical connections then used heat-shrink tubing. My '80 Chevy Citation for example, ran EXTREMELY hot during the summer. I found out, the temperature sensor for the electric fan was the correct one, so,,,,I ran a toggle switch from the sensor to ground, so I could run the cooling fan whenever I wanted to. It worked great! I did the splicing IN the wiring harness so that the dealer couldn't see it.....The sensor was on the ground side of the fan relay. You put me to shame! You know more about cars, then I EVER did! You are quite the "Car Surgeon" as Richard Cooper states!!! If I may say so.. Marine shrink wrap??? Well I'll be dipped....GREAT TIP!!!!!
@@AutoAnatomy well I'll be dipped. I'm a fan of yours as well. I'm a bit tired, so I'm gonna do the right thing and stay online for a few more hours.. Be well, stay healthy and keep on wrenching!!!
Hey Sean, great videos and a great build. Currently working on my own 924 Turbo and have ordered all new vacuum hose for the engine bay. Just wondering if you had a vacuum line diagram on hand for this step?
@@AutoAnatomy You have the knowledge AND skill to get this done! You have something I DON'T have, patience. That's why I did Stripline work!! Yeah, satellite communications work. Go figure! I'm also poor at math, which is why I went into electronics work for 40 years. Go figure. You have amazing talent, skill, patience and yes, connections. That helps, connections...KEEP ON WRENCHING!!!
Great choice for a new project Sean! It's great to see you tackling a wide variety on the channel. As you know I am a "Ford guy" but I appreciate many different models. I am an Army combat Veteran and after my tour I was stationed in Germany for the rest of my term. One of my first car was a Porsche very close to this one so this video brings back alot of great memories. I see that you put emphasis on doing redundant steps as far as analysis of potential issues in a car and you are correct for stressing that. Many times I have been bit by a simple issue because I was too convinced it was something more in depth....lol. Hope you and the family are doing well my friend! Things are going much better here and Dad says there was one thing wrong with your last thunderbird video.......you weren't parking it in his garage.......😉.....lol.
Sean, Want to start off saying how much I appreciate the series. Currently working on a 924t. Car started off with warped head. We did have the head machined. We have set to tdc. Lined up distributor, now seems to flood out spark plugs immediately. Any ideas how to cut back fuel flow.
Its been sitting so take the big rubber boot off the fuel distributor and push down on the air flap a couple of times that may help because they gum up a bit if they have been sitting for long periods. They wont open the air flap and wont increase the flow to the injectors. Then to get the boot back on put rubber grease on the lip and it should pop back on. Sometimes they wont seat as the boot gets hard with age. The wiring on these and the old square Audi Quattros and Porsches of the same era leaves a lot to be desired.
Or probably fuel accumulator, which often causes hot start problems. Easy to fix, but most people don't do any measurements or analysis, they just start butching. My 931 starts perfectly hot and cold anytime :)
I have no feed to my cold start injector ..I'm going to look at the thermo time switch next as it won't start just loud backfire all the time also going to change coil pack as it looks very old
I think I am the new owner of this car! I recently purchased it and someone on the comments said this appears to be the same car as in a TH-cam video series from a few years ago. I'm looking forward to watching the rest of the videos.
I'm taking delivery of a 1982 924 turbo next week! Starts, idles, dies. Can't wait to diagnose it. I fear it is the dual coil crank sensor. Hope that NLA item is functional upon arrival!
Possibly, but on these cars the fuel system is the most finicky. As far as parts are concerned, 924 board has been an invaluable resource for these little cars. Make sure to join, it's a great group of people. Congratulations on the 931 purchase, and thanks for checking out the video! Sean
great video, normally skip through longer videos like this... but you somehow managed to keep ONLY the relevant parts, skipping installing the starter motor but going in detail with the slave cylinder. nice job, very hard to do in editing!
The spark plugs are recessed and have the part of the turbocharging unit as well as other parts that make getting my hand in to push the wires onto the plugs impossible. If there’s a trick or special tool that can get the wires on the plugs please let me know. I am reluctant to start unbolting stuff. I was able to replace the old plugs using the spark plug wrench in the car’s tool kit. This seemed to be the sort of straightforward job that (I thought) was within my skill set.
They are definitely down under the air intake pipe. I found that removing the intake pipe makes it a lot easier, but it is possible to do it with everything intact.
That's what I've discovered. Funny thing is...it starts really well both hot and cold. Regardless, I'm not a fan of these kind of fixes. Would rather address the real issue. Thanks for checking out the channel!
I think we're about to see the transaxle cars (924/944) spike in value very soon. It happened with the 911, then the 914, now the 924/944s are gonna spike.
Hi Sean..I am now doing a 924 turbo as we speak. It wont run over 2000 rpm...and yep I have diagnosed its the K JET. I have pressure at the base of the head unit- but not at the top x4 as you have- my dribbles out gas. Any ideas ???? thanks
Thomas, it sounds like the fuel manifold thingy is gummed up. Can you press down on the air flapper and get fuel to the top of the manifold? Check out my newest video and there's a section where I manually open the air flapper and you can see how it impacts the injectors.
@@AutoAnatomy Hi Sean, Big thanks for the help. Ok, so as I said if I go live with the ignition key and get the fuel pump-pumped up and then loosen each of the x4 fuel line bolts on top of the fuel manifold - then nothing comes out. So, then I tryed as you suggested and pushed down on the air flapper testing each of the x4 on the top and they all have OK pressure, So I am now going to delve into the injectors and see what's going on there. Will update you shortly
@@AutoAnatomy HI Sean, Got all the injectors out and they were full of crap. Spent a lot of time cleaning them out- have put them back in and that is as far as I got today. Hopefully will get it all back together tomorrow- but I am awaiting some 'elbow' vacuum pipes from 'Porsche Classic' which might slow down progress. All the best.....
True, there's an interesting documentary regarding the building of the transaxle cars. It goes through how they picked bits and pieces from VW and Audi that came together into a pretty amazing little car. Thanks for checking us out! Sean
the engine is okay, its very unrefined - the head is only 8v - but the mechanical fuel injection is a puzzle. it would be better on a single carb. like when it was in a van,
The K-jetronic works really well when clean, and is very reliable if proper maintenance is done. It's when things are neglected that problems arise. Thanks for checking out the channel, and don't forget to subscribe! Sean
@@AutoAnatomy No i have a bmw from 87 bosch fuel injection with ECU = 1987 all electronic - no time switches no heat related switches like an old electric kettle - a porsche wirh such shit - in the 80s BMW were way ahead of a desperate porsche - when porsche knocked this parts car out - bmw had refined the 3 series. and no wonder Bosch wanted nothing to do with Porsche
A lot changed in engine management between 1980 and 1987, as the early 80s was a time of serious growing pains for auto manufacturers (coming out of the gas crisis of the 70s). We have owned an early 80s BMW 318 and still have an 85 635CSI. Both were susceptible to poor performance with neglected maintenance, just like any other car. It can be frustrating to work on some of these earlier cars, but they were an important stepping stone to the modern injection systems we now enjoy.
Back by fuel pump check the accumulators..also clean the four ground point one inside engine bay one just above taillights..two under dash
Nice work on this one, Sean! I like your wiring work. With what you have found so far, you can probably bet on finding more surprises!
George B. in Michigan
Service Technician No doubt!
I had a 77 VW Scirroco with the Bosch fuel injection setup like on your Porsche. Every year the VW needed a new set of points. What a Difference that made. Seems like the fuel pressure regulator needed a little tweaking but that 1.8 liter motor was sound. Good luck!
A good friend had an '81 Scirocco with the K-Jetronic injection, and I remember that car being a riot! Thankfully the Porsche doesn't have points and is now up and running well. Thanks for checking out the video, and make sure to watch part 2!
Sean
YES! I like your wiring repairs!!! Great practices to follow!!! I always soldered my electrical connections then used heat-shrink tubing. My '80 Chevy Citation for example, ran EXTREMELY hot during the summer. I found out, the temperature sensor for the electric fan was the correct one, so,,,,I ran a toggle switch from the sensor to ground, so I could run the cooling fan whenever I wanted to. It worked great! I did the splicing IN the wiring harness so that the dealer couldn't see it.....The sensor was on the ground side of the fan relay. You put me to shame! You know more about cars, then I EVER did! You are quite the "Car Surgeon" as Richard Cooper states!!! If I may say so..
Marine shrink wrap??? Well I'll be dipped....GREAT TIP!!!!!
Howard Koster You must be a Vice Grip Garage fan! Thanks for all the kind words
@@AutoAnatomy well I'll be dipped. I'm a fan of yours as well. I'm a bit tired, so I'm gonna do the right thing and stay online for a few more hours.. Be well, stay healthy and keep on wrenching!!!
@@AutoAnatomy Oh, uh, you're quite welcome for my kind words....be well.
Just found your channel. I'm rebuilding a 931 and have a lot of the same issues as you do. Excited to follow along!
Welcome aboard, thanks! Let me know if I can be of any help.
Hey Sean, great videos and a great build. Currently working on my own 924 Turbo and have ordered all new vacuum hose for the engine bay. Just wondering if you had a vacuum line diagram on hand for this step?
Wiring issues, perhaps??? Shocking...YOU'LL sort it all out!!!! GREAT to know this car will run!!!!!
Howard Koster It’s definitely a step out of my comfort zone, but I’m really excited about this one!
@@AutoAnatomy You have the knowledge AND skill to get this done! You have something I DON'T have, patience. That's why I did Stripline work!! Yeah, satellite communications work. Go figure! I'm also poor at math, which is why I went into electronics work for 40 years. Go figure.
You have amazing talent, skill, patience and yes, connections. That helps, connections...KEEP ON WRENCHING!!!
Great choice for a new project Sean! It's great to see you tackling a wide variety on the channel. As you know I am a "Ford guy" but I appreciate many different models.
I am an Army combat Veteran and after my tour I was stationed in Germany for the rest of my term. One of my first car was a Porsche very close to this one so this video brings back alot of great memories.
I see that you put emphasis on doing redundant steps as far as analysis of potential issues in a car and you are correct for stressing that. Many times I have been bit by a simple issue because I was too convinced it was something more in depth....lol.
Hope you and the family are doing well my friend! Things are going much better here and Dad says there was one thing wrong with your last thunderbird video.......you weren't parking it in his garage.......😉.....lol.
Hi Rick! So glad your dad is doing better. I really think this is going to be a fun little project and am looking forward to getting it running!
I just got a 1980 924 and ur videos now let me know what i have to work on!!
They really are fun cars, just a bit quirky. Thanks for checking out the channel!
Lot's of good info on the Porsche 924, just subscribed!
Thank you very much!
Sean,
Want to start off saying how much I appreciate the series. Currently working on a 924t. Car started off with warped head. We did have the head machined. We have set to tdc. Lined up distributor, now seems to flood out spark plugs immediately. Any ideas how to cut back fuel flow.
Its been sitting so take the big rubber boot off the fuel distributor and push down on the air flap a couple of times that may help because they gum up a bit if they have been sitting for long periods. They wont open the air flap and wont increase the flow to the injectors. Then to get the boot back on put rubber grease on the lip and it should pop back on. Sometimes they wont seat as the boot gets hard with age. The wiring on these and the old square Audi Quattros and Porsches of the same era leaves a lot to be desired.
The car surgeon!
Thanks Richard!
That bypass pushbutton masks the warm up regulator or thermo time switch issues- seems to be done to every 924 I've ever seen ! Love this project !!
Good to know, thanks!!
Or probably fuel accumulator, which often causes hot start problems. Easy to fix, but most people don't do any measurements or analysis, they just start butching. My 931 starts perfectly hot and cold anytime :)
Yup, did it to mine. A lot neater than this one. Solved the hot start problem until I put a new WUR in.
I have no feed to my cold start injector ..I'm going to look at the thermo time switch next as it won't start just loud backfire all the time also going to change coil pack as it looks very old
I think I am the new owner of this car! I recently purchased it and someone on the comments said this appears to be the same car as in a TH-cam video series from a few years ago. I'm looking forward to watching the rest of the videos.
Awesome! Where did you buy it from?
@@AutoAnatomy It was on Bring A Trailer, but I would love to get whatever information you know about its history. Hopefully we can connect
That was our car! I'm so glad you got it and happy to answer any questions you may have. Please email me at autoanatomy@icloud.com
@@AutoAnatomyAlso kudos to you and your day job. I got tons of respect for your profession.
I'm taking delivery of a 1982 924 turbo next week! Starts, idles, dies. Can't wait to diagnose it. I fear it is the dual coil crank sensor. Hope that NLA item is functional upon arrival!
Possibly, but on these cars the fuel system is the most finicky. As far as parts are concerned, 924 board has been an invaluable resource for these little cars. Make sure to join, it's a great group of people. Congratulations on the 931 purchase, and thanks for checking out the video!
Sean
great video, normally skip through longer videos like this... but you somehow managed to keep ONLY the relevant parts, skipping installing the starter motor but going in detail with the slave cylinder. nice job, very hard to do in editing!
Thank you very much!
theirs one these at auction in uk none runner but looks nice bodywork wots somthing like the turbo 924 worth its 1980 model
It depends on condition. If it’s a solid car with no rust, complete, maybe 2000-3000. For a perfect one, they go 14-18k.
The spark plugs are recessed and have the part of the turbocharging unit as well as other parts that make getting my hand in to push the wires onto the plugs impossible. If there’s a trick or special tool that can get the wires on the plugs please let me know. I am reluctant to start unbolting stuff. I was able to replace the old plugs using the spark plug wrench in the car’s tool kit. This seemed to be the sort of straightforward job that (I thought) was within my skill set.
They are definitely down under the air intake pipe. I found that removing the intake pipe makes it a lot easier, but it is possible to do it with everything intact.
The Bosch CIS fuel systems are extremely reliable and easy to work on. They're significantly better than carburetors.
They are a little complicated but once sorted seem to work pretty well!
The button on the cold start valve is to solve the warm start problem.
That's what I've discovered. Funny thing is...it starts really well both hot and cold. Regardless, I'm not a fan of these kind of fixes. Would rather address the real issue. Thanks for checking out the channel!
clever with injectors clean
A question a bit off topic; how do you connect the spark plug wires on an ‘81 924 turbo?
Can you clarify the question and be a bit more specific?
just found a 1980 924 turbo in Georgia for $12,000 on cargurus
Oakwood, GA ·
I think we're about to see the transaxle cars (924/944) spike in value very soon. It happened with the 911, then the 914, now the 924/944s are gonna spike.
Plaid pattern interior not surprising
It's so 1980s, I love it!
better change that timing belt, its sure to snap!
TrustmeIknowWhatImdoing It’s on the list of things to do
considering that you can get one of those for under 10 Grand... its pretty nice.
hiems It’s pretty remarkable that you can still pick these up for a reasonable price. Hopefully this one will be for sale soon
Hi Sean..I am now doing a 924 turbo as we speak. It wont run over 2000 rpm...and yep I have diagnosed its the K JET. I have pressure at the base of the head unit- but not at the top x4 as you have- my dribbles out gas. Any ideas ???? thanks
Thomas, it sounds like the fuel manifold thingy is gummed up. Can you press down on the air flapper and get fuel to the top of the manifold? Check out my newest video and there's a section where I manually open the air flapper and you can see how it impacts the injectors.
@@AutoAnatomy Hi Sean, Big thanks for the help. Ok, so as I said if I go live with the ignition key and get the fuel pump-pumped up and then loosen each of the x4 fuel line bolts on top of the fuel manifold - then nothing comes out. So, then I tryed as you suggested and pushed down on the air flapper testing each of the x4 on the top and they all have OK pressure, So I am now going to delve into the injectors and see what's going on there. Will update you shortly
Sounds good. I had to clean my injectors a couple of times before they worked appropriately. Now, it fires right up!
Keep us posted on the results
@@AutoAnatomy HI Sean, Got all the injectors out and they were full of crap. Spent a lot of time cleaning them out- have put them back in and that is as far as I got today. Hopefully will get it all back together tomorrow- but I am awaiting some 'elbow' vacuum pipes from 'Porsche Classic' which might slow down progress. All the best.....
Thomas Humber Keep me updated on the progress
Subbing for 924 kick ass
a diesel injection is sequential!
if that car was abandoned im a certified alien(not illegal)
It was abandoned by the previous owner, who bought it to make it a race car. It was stored in the back of his work property and forgotten about.
The only thing Porsche about this is the chassis. The rest is a vw or Audi
True, there's an interesting documentary regarding the building of the transaxle cars. It goes through how they picked bits and pieces from VW and Audi that came together into a pretty amazing little car.
Thanks for checking us out!
Sean
Yours is a pretty weird model. Early enough to have the 4 lug brakes but late enough to have a real fuel filler door.
Daniel I like to think of it as more rare!
Verkaufe porsche turbo Baujahr 1979 vol Ausstattung voll verzinkte ab gemeldet seit 1992 180 ps elektrische Fensterheber und Spiegel beheitz 5 gang
I really enjoy the channel - political posts notwithstanding - but PLEASE wear gloves when working with petroleum based products.
Can do on the gloves, but not sure I know what you mean about political posts. I try to stay away from those.
@@AutoAnatomy you posted something on the empeachment
gustoffur I don’t remember posting anything about the impeachment. I try not to make political posts
My mistake
@@AutoAnatomy
gustoffur No problem, thanks for checking out the channel!
this engine sucks so much
paul hunter What leads you to that conclusion? I think it’s a great little engine!
the engine is okay, its very unrefined - the head is only 8v - but the mechanical fuel injection is a puzzle. it would be better on a single carb. like when it was in a van,
The K-jetronic works really well when clean, and is very reliable if proper maintenance is done. It's when things are neglected that problems arise.
Thanks for checking out the channel, and don't forget to subscribe!
Sean
@@AutoAnatomy No i have a bmw from 87 bosch fuel injection with ECU = 1987 all electronic - no time switches no heat related switches like an old electric kettle - a porsche wirh such shit - in the 80s BMW were way ahead of a desperate porsche - when porsche knocked this parts car out - bmw had refined the 3 series. and no wonder Bosch wanted nothing to do with Porsche
A lot changed in engine management between 1980 and 1987, as the early 80s was a time of serious growing pains for auto manufacturers (coming out of the gas crisis of the 70s). We have owned an early 80s BMW 318 and still have an 85 635CSI. Both were susceptible to poor performance with neglected maintenance, just like any other car. It can be frustrating to work on some of these earlier cars, but they were an important stepping stone to the modern injection systems we now enjoy.