[Fuel pump for K jetronic]

Has anyone tried a Facet solid state fuel pump on K jetronic?
 

Interestingly when I searched on Rose Passion for a fuel for a 1976 Carrera 3.0 it suggested a Facet. My car has a working Bosch pump but I would like a spare to carry just in case. The Facet is quite a bit cheaper.

[Minilite on 3.2]

On 21/01/2023 at 02:06, RivieraBob said:

A PO had painted mine gloss black so ended up buying new. If yours are in good nick then the matt black matches the petal finish perfectly (presuming you've gone for black). It was a leap of faith as I believe I was the first on here to go for the new build Fuchs (there's a post on here somewhere), but you won't be disappointed as they are as perfect as the originals; they have the Fuchs stamp and only difference is the lack of a Porsche part no stamp - for that I guess you'd have to pay the Porsche tax which seems ridiculous.

I have just purchased a set a new 7&8 x 15 RSR finish Fuchs from Rose Passion in France and the wheels arrived in the UK less than 48 hours after placing the order and they are are great company to deal with.

The quality of these forged wheels looks excellent and I can not see any variation in design to the 40 year old Fuchs I already have. Checked them on the scales and each wheel is around the 6kg mark so nice and light. 

[what tyres on 7/8 -15s ?]

I have attempted to add a photo showing my car with the 205/225 60 15 Uniroyals fitted.

If it has not worked you may need to point me in the direction of instructions to add an image (pathetic IT skills, I know!).

[wheel spacer recommendations]

On 07/12/2022 at 21:59, Phill said:

I had 25mm spacers with 7 inch cookies and they were just about perfect width.

I don’t know if there is any offset difference between 7” fuchs and cookies. If there is just adjust accordingly.

Just looking for confirmation that 25mm + bolt on spacers will fit Cookie Cutters without the hub stud/nut touching the back of the wheel. Basically the hub stud needs to be within the thickness of the spacer to work.

I have a set of 7 inch Cookies that I use as track tyres with 225 15 Toyo 888 tyres and they are well tucked in on the rear arches so could do with some spacing.

[what tyres on 7/8 -15s ?]

I have had this question as I have Toyo 888s for hillclimbs/sprints but wanted a good road tyre that also gave me a bit more ground clearance. My car sits v. Low on the 205/225 50 15 Toyo’s and is vulnerable to scraping the chin.

I recently went for 205/225. 60 15 Uniroyal Rain Experts having noticed that some people actually use these for hill climbs/sprints and do rather well on them. They are not silly money either. About £100 a corner. They actually look really good on my car filling the arches nicely and I am so far very pleased with the performance. I ran them on a cool damp Prescott hill and they felt good.

[Carrera 3.0 Targa Project]

Narrow bodied, not Carrera. A fair old project looking at the photos and I would say £16k plenty as you could easily spend £30k plus getting it up to a nice standard. Having had my C3 engine rebuilt recently I know how much money can go into these cars!

Hopefully it will be restored and enjoyed by the new owner.

[8 years later!]

6 hours ago, JLewis said:

Looks great!

Yes, that is a very nice combination. Gold works so well with black.

Enjoy those long drives!

[8 years later!]

On 21/05/2020 at 11:32, Richard Bernau said:

10mm may be a little low, but I think they look better on the low side vs the 50mm guidance.  If you look at the 3.0RS pic, I reckon they are more like 30mm above the bottom of the doors.  IMHO, its more about what you think looks good than being right.  I have always stuck my decals lower than the guidance as it has the visual effect of lowering and elongating the car a little.  IMHO, of course.

So I went for 40mm up from door bottoms. Its a tricky job but managed it without ruining any decals and only a couple of little air bubbles near the rear arch which I can live with. These decals were suppled by Type 911 (£50) and I am happy with their quality. 

[8 years later!]

On 15/05/2020 at 10:03, hagarep said:

50mm up from the bottom edge of the door and the leading (front) letter should be 10mm back from the door edge. This will be the 4th set I've fitted. First two sets were silver, one of which came from ebay I think and the font was crap. Highgate House produce the best aftermarket decals and are used by many Porsche specialists.  Scan from workshop manual below.

Might as well get everything right while we have the time to work on them and nowhere to drive.

Jason.

I think mine are more like 10mm above bottom edge of doors. I sense another attempt is needed!

Thanks for the correct instructions 

[Carrera 3.0 5 fan upgrade]

Proper job.

[8 years later!]

I recently fitted the Carrera decals to my C3 sourced from Highgate and they look good. I possibly positioned mine too low as now I have started noticing others they are often a good 2-3 inch above door bottoms. I wonder what ‘factory height’ was.

[Carrera 3.0 5 fan upgrade]

Thanks will look that up.

[Carrera 3.0 5 fan upgrade]

Many thanks for the comments, some useful information to go on. 

I think the hottest I have seen my car was in heavy stop/start traffic on the M1 on route to Shelsley Walsh when the outside temperature was around 32-34 degrees. My temp gauge was just heading over the 250 mark and I spotted a fuel station and decided a 20 minute cool off was needed. The joys of driving UK motorways on Fridays! As long as the car is moving at reasonable speed it never seems to top 230 even in circa 40 degree weather on the Continent. 

[Carrera 3.0 5 fan upgrade]

My 1976 Carrera 3.0 has the original 5 blade engine cooling fan. On warm days and under more testing driving conditions the engine gets hotter than my liking and can run between 210 and 250 degrees. Sometimes the rear bumper is too hot to touch! Having checked the owners manual it only states 'if the temperature reaches 300 degrees stop the engine' which is basically the top of the gauge.

I have looked into an oil cooler to replace the simple 'trombone' cooling pipes in my front wing but it is a £1500 + upgrade. I am considering upgrading my 5 blade fan to an 11 blade as fitted to the SC. A couple of questions if anyone can help...

1. Will the 11 blade fan giving much better cooling?

2. Is there anything else to change (other than the fan) to make this upgrade?

Thanks,

Thomas (in anticipation of a warm sunny summer!)

[Possible fueilng problem?]

7 hours ago, waddy said:

Hi Thomas

I do have similar issues with my 1976 C3, although it is not used as much as yours! I would check that the warm up regulator (WUR) is working properly, I did have a WUR refurbished on another engine and it cured a poor running problem. Have you had the fuel injectors cleaned or replaced during your ownership?

It is a case of trial and error to find the cause. If you really get stuck then I have CIS guages, WUR regulator and even a complete CIS system to try if you fancy a long drive down to Lincolnshire!

Regards

Ian

Hi Ian,

I have not had anything done to the fuel injection system in the 10 years and around 30k miles of ownership - I’ve been lucky!

Cleaning the injectors is an idea as a simple start and the car is due to go to MB when he has space but thought I’d try and get a head start on sorting this. I have been for a drive today and it is by no means terrible but at the same time it is lumpier at lower revs/speeds than it used to be.

Thanks for the offer to try out replacing the parts mentioned. If all else fails......

regards,

Thomas 

On 9/28/2018 at 8:22 AM, Jonny Hart said:

Take the air filter off and check the screws inside the air box to the right of the plastic ribs.   Are they tight?

Thanks, I will have a look at this too.

[Possible fueilng problem?]

Thanks for that - looks like a useful reference.

[Recaro Pole Position seat for sale]

This item is now sold.

Thanks.

[Recaro Pole Position seat for sale]

I am selling this Recaro PP as it is no longer in FIA date and have replaced it with a new one exactly the same but in date (a very unsatisfying £700 expenditure!) as it is a requirement of hillclimbs in France. 

The seat is in good condition but has some small light scratches on the back. The fabric on the seat pads is actually brand new as I had the originals trimmed in the Porsche tartan and have switched these onto my new seat so the new seat pads are now on this one.

Please note this is a seat only and does not come with any side mounts or runners.

£250 or best offer.

I have the packaging from my new seat so can easily box up for courier collection at buyers expense. Thanks.

[Cookie Cutters with tyres for sale]

I am selling this set of 4 ATS Cookie Cutter alloys. They are in decent condition though not perfect. They have been sprayed black and there is some slight pitting under the paint which you can probably see on photos. They have 2011 dated Falken ZE912 tyres - 2 x 205/55/15 and 2 x 225/50/15 all with I would say 80% tread still on.

These wheels have been stacked in my garage for at least 5 years now so surplus to requirements! They are tidy enough to use as they are or could be restored for a restoration job.

Offers around £400.

I can strap up for courier collection but that would be at buyers expense.

[Possible fueilng problem?]

My Carrera 3.0 with K Jetronic has an issue which is getting worse. I was wondering if anyone on here has had/heard of the same symptoms as I suspect it is an issue in the fuel injection system.

The problem is most apparent if you drive on light throttle, eg. 30mph in 4th gear the engine becomes very jerky. It used to be more of an issue when cold but seems to do it when warmed up as well now. Under full load such as hard acceleration it is fine and there is no noticeable misfire. I have not noticed a drop in performance.

Just yesterday I started it up, backed it out of the garage and left in running whilst locking up. The engine idle started dipping, picking up, dipping and then stalled. This has never happened before in my 10 year ownership so could be significant to the problem I have.

Thomas

 

[Bespoke rear roll cage]

Hi Ian - David sent me the regs for Etretat and it merely says that cars must have "a homologated roll cage" so just need clarification on that. Probably best to contact the event organiser directly.

I know that the Heigo cage is good for an MSA log book as the chap who fitted it has one in his car which attained this but things are not always that simple with the French!!

[Bespoke rear roll cage]

I got a 911 SSD Heigo rear cage fitted in the end. Found out about a garage about 15 miles away from me who specialise in Porsche who sourced the cage from Germany for me (took about 6 weeks) and fitted it in a day - great job!

My next question is are these cages classed as a homologated cage? This is a requirement for French hillclimbs.

[Recaro bucket seat options]

I have a Recaro PP bucket seat in my Carrera 3.0 fitted with Recaro side mounts and on a slide runner. The seat is fine but out of date for FIA regulations which apply for French hillclimb events so a new one is needed.

I think new Recaro PP's are about £700 so I was just wondering if any other (i.e. less expensive) makes of seat will fit into the same mounts/runners for a 911. It is not an issue in the UK as MSA regs do not date specify things.

Cheers,

Thomas

[C3 Fuel line check valve]

Just spoken to Mike Bainbridge about this and as he recalls the check valve is in the banjo bolt on the C3. I subsequently called Porsche Kendal parts and they can get the pressure line with banjo from Germany but can not find a listing for the banjo bolt expect for a turbo one. The turbo has 2 fuel pumps and as such the banjo bolt is without check valve at the front end so not suitable. They are going to look into this further and get back to me.

As is often the case, a rare model like the C3 that was only produced for a couple of years poses some challenges in the parts department! Probably best, as suggested, to take it in for a pressure test.

[C3 Fuel line check valve]

On ‎22‎/‎05‎/‎2017 at 10:29 PM, johndglynn said:

The cheaper fuel pump check valve is SCs only as you say. Tuthills changed the check valve as cheapest first step on my first SC when it had a hot start problem but it turned out to be the accumulator. I would bet that whatever was first used on C3s will still be available, just not through Porsche.

Thanks. If anyone knows where to source the correct part for a C3 please let me know as I am struggling.

As I understand it, the part I need is a fuel line with an integral banjo/check valve which connects to the fuel pump with a banjo bolt. I still can't work out in my head how this is different to using a check valve from the SC in the same position but as my car no longer starts as easily from hot (after sitting for 30-60 mins) I presume there must be a difference in either the check valve or the actual fuel line.

The car will start after a few spins of the engine but sounds a bit like a Beetle for the first 5 seconds when the fuel is not getting to all pots.