Porsche 924 Scheiße - Mrs Slocombe's pussy and K Jet costs

[N Dentressangle]

All back together again. No obvious damage to the +ive wires so I re-secured the insulated sleeving to try and keep the heat off. Pulled the new heat resistant blue wire through the sleeving with a length of welding wire (is there anything it can't do?) and crimped a new ring terminal on the alternator end. Spliced and soldered the bulkhead end into the old wire and covered with heatshrink:

Re-fitted everything and re-installed the alternator, this time with a metal spacer rather than the exhaust bobbin - it was still allowing some wriggle and meant the belt gradually loosened itself and needed tightening. Right PITA.

Sleeving covers the bulkhead splice, so everything still looks factory, and all lights now behave as they should.

[Verysleepyboy]

25 minutes ago, N Dentressangle said:

All back together again. No obvious damage to the +ive wires so I re-secured the insulated sleeving to try and keep the heat off. Pulled the new heat resistant blue wire through the sleeving with a length of welding wire (is there anything it can't do?) and crimped a new ring terminal on the alternator end. Spliced and soldered the bulkhead end into the old wire and covered with heatshrink:

Re-fitted everything and re-installed the alternator, this time with a metal spacer rather than the exhaust bobbin - it was still allowing some wriggle and meant the belt gradually loosened itself and needed tightening. Right PITA.

Sleeving covers the bulkhead splice, so everything still looks factory, and all lights now behave as they should.

Looks like a great find and a win - always nice when that happens!!

Just been out in my 944 for a quick drive, just for the heavens to open and remind me just how much nicer a modern car is to drive in bad weather!! (Note to myself - still need to fix the rear window demister and the flaps to get warm air to the screen)

 

[Rusty_Rocket]

32 minutes ago, N Dentressangle said:

All back together again. No obvious damage to the +ive wires so I re-secured the insulated sleeving to try and keep the heat off. Pulled the new heat resistant blue wire through the sleeving with a length of welding wire (is there anything it can't do?) and crimped a new ring terminal on the alternator end. Spliced and soldered the bulkhead end into the old wire and covered with heatshrink:

Re-fitted everything and re-installed the alternator, this time with a metal spacer rather than the exhaust bobbin - it was still allowing some wriggle and meant the belt gradually loosened itself and needed tightening. Right PITA.

Sleeving covers the bulkhead splice, so everything still looks factory, and all lights now behave as they should.

Brilliant repair!  My alternator is also very wobbly... Mini shocker bushes you say?!

[N Dentressangle]

9 minutes ago, Rusty_Rocket said:

Brilliant repair!  My alternator is also very wobbly... Mini shocker bushes you say?!

Yes, these ones: https://motaclan.com/product/bush-shock-abs-mini_21a1230_1412_0/

I found Motaclan the cheapest, but there are loads of suppliers.

[Rusty_Rocket]

Thankyou!

[N Dentressangle]

Fucksticks - new regulator in the alternator has failed, so I've had to pull the alternator. Again. Must be the 5th time at least? Off back the repair place tomorrow so he can fit another. What a PITA.

[rusty_vw_man]

Yay for quality parts!! 

[N Dentressangle]

48 minutes ago, rusty_vw_man said:

Yay for quality parts!! 

Ain't it just?

[N Dentressangle]

Now I KNOW I made the right choice

[Vince70]

I’ve just seen a rot free one for sale locally on Facebook which is also an S and if I had a spare couple of grand and less than 6 motors (I only use 4 of them lol) it would be on the driveway, but I don’t use the current fleet much, so can’t justify getting it.

I also get the train to and from work and there’s a driveway behind a house that has a hidden Red 924  and it looks amazing, but you can only see it during the winter months, as during the summer it’s covered in weeds and it’s Between Collington and Bexhill on the train.

I keep thinking about asking if it’s for sale, but I think a non runner that’s been sitting for years with K jetronic is going to be expensive and a world of pain.

Theres a fantastic YouTube channel called Cash Machine Cars and the young lad that has the channel works wonders on getting old Porsches running again and it’s well worth a watch.

 

 

 

 

 

[N Dentressangle]

Agreed, the guy on Cash Machine Cars is very good. His fabbing and welding is quite special - that most recent 944 would have deterred many braver souls.

To be honest, the K Jet need not be that expensive. If I break down the fuel system expenses, from back end to front, it looks something like:

£15 - bits of rubber fuel hose and clips

£30 - HP fuel pump

£65 - premade HP hose from pump to accumulator

£170 - new Bosch accumulator

£2.50 - new seal for pressure valve in metering head

£30 - full rebuild kit for WUR

£20 - new Viton injector seals

Pretty sure that's it, fuel related. The metering head was the biggest potential expense, but that responded well to a really good go with carb cleaner and only dismantling as far as I needed to go. No harder than cleaning and sorting an old pair of SU's really, and the parts for those ain't as cheap as they used to be either.

Accumulators are either new or fucked as far as I can tell, so a new one of those might be worth budgeting for. I re-plumbed all the fuel lines with 8mm central heating microbore I had lying around, putting a flare on with my cheap shit flaring tool and using decent clips. Could probably have saved myself a few ££ on the pre-made hose in retrospect.

So, I don't think K Jet would scare me too much. Knackered interiors and missing / damaged trim are just as expensive to put right.

[captain_70s]

4 hours ago, N Dentressangle said:

To be honest, the K Jet need not be that expensive.

The bonus being if you get it all sorted it should be good for a considerable length of time. An SU carb is simplicity itself but you're probably going to be having to tinker with it frequently too keep a car in fine tune.

The fact the metering head on a 924 isn't jammed directly under the intake manifold like the Volvo 740 presumably makes life much easier...

[N Dentressangle]

Yep, it's all very accessible. It's a fairly basic 70's car at the end of the day.

K Jet seems to respond to a systematic work through of every component to make sure it's working properly. If any part of it doesn't work then the whole thing won't run properly. And making sure everything's very clean with no air leaks is a good starting point. My car had been sitting for 25 years so I think most of it can be brought back to life with enough patience.