400i/412 K-Jetronic Fuel line kit interest?

Are any of you K-Jetronic injected car owners interested in kits similar to these:

Unobtainium Supplies: K-Jetronic (CIS) Plastic Fuel Line/Hose Restoration Kit
http://www.ferrarichat.com/forum/sho...d.php?t=186689

If you're interested, please reply & identify your model.

BTW, I don't have plastic fuel line sizes for these cars, or one in the area, so would need someone to eMAIL me the measurements.

 

Sorry about that, I cut-n-pasted from another post & forgot to fix up the link. here it is:

http://www.ferrarichat.com/forum/showthread.php?t=186689

 

Thanks Dave,
It's been 4 years since I've seen a 400i engine compartment & I'd forgotten.
Just didn't want to overlook someone who might need fuel line.
Appreciatively,
Verell

 

I see a couple of plastic lines (see yellow arrows).

Are the lines from the distributor to the injectors steel end to end? The 3x8, Boxer, & TRs injector lines have plastic line sections in the middle so they can flex during installation/removal w/o bending.
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I need to know the OD & length & number of lines of that length before I can make up & cost out a kit.

Would one of you be able to supply me with the lengths? The length doesn't have to be super precise, just to the nearest 10mm/0.5" & the number of lines that are that length. The kit will consist of a single length of each size of line + at least enough extra line to make the longest single line of that size. That way if you miss-cut a line while learning, you can recover.

In some cases, the a particular size may come in 2 lengths, this is because Cohline sends me some of the sizes in fixed lengths that aren't always a near multiple of the kit size. An example is the 3x8/Mondial kit where the 6mm line comes in in 5 meter lengths, & the kit contains roughly 4 meters. So I cut the 5m lengths into 3m, 2m, & 1 m lengths. The final kits ship with either 2 x 4m lengths or a 3m + 1m length(pita to keep track of!).

The CIS barb insertion tool handles inserting the steel line barbs & banjo fitting barbs into 5mm OD & 6mm OD lines. A std tubing flaring tool works quite well for holding the 8mm line while tapping a banjo barb into it. I'm hoping to keep the tool price at the current $95.00.

 

Aidan,
It's always great to meet another Ferraristi.

Come on up this weekend, the weather's going to be good for a drive both Saturday & Sunday!
Cindy's out for the weekend, so I'm very flexable time wise, whenever fits your schedule.

I'd love to see your 400i & measure it's fuel lines!! (Is that the automotive equivalent of looking at etchings???)

First 400 series I saw was 7 or 8 years ago in a small town in the Burgundy region of France. Unfortunately, couldn't stop to look at it at the time. It was a rich metallic copper color that looked great on it! I've always wished I could have taken a better look at it.

Give me a call tomorrow(Friday) & we'll figure out what works for both of us. I'm in the Groton,MA phone book.

 

Aidan,
Looking fwd to your call & meting you.
BTW, I just attribute my memory lapses to Early Alzheimers attacks.

We ran into the 6x2 line availibility issue when trying to find replacement lines for 308s.

Awhile back I had learned that the Porsche 911 guys had been using 5 x 3 from McMaster-Carr. However, when I went back this time it turned out that 5x3 had been causing them lean running problems. As the 5x3 line's softer walls was causing the injectors to improperly atomize.

See: 308 F.I. plastic lines to injectors - Weak design?
http://www.ferrarichat.com/forum/showthread.php?t=13095

As posted to the thread, I contacted CohlineUSA, the US Cohline distributor. They confirmed that 6/2 was no longer available. After some research they came back with Cohline's recommended alternative: a 6mm OD x 3.15mm ID line that had never been imported into the US. It's the closest available to the OEM 6mm OD x 2mm ID line, & materials improvements over the years have given it similar characteristics to the 6 x 2 line. They are custom importing it for me to make up CIS kits.

The barb insertion problem is solved. Based on tips from Cohline, Larry Fletcher (), & others I've designed a barb insertion tool. It makes inserting the barb into 5m & 6mm lines easy. I've verified that the tool works with 5x3, 6x3.15 & some used 6x2 line. It inserts both banjo & straight line barb fittings.

See this thread for info about the CIS Barb Insertion tool:
http://www.ferrarichat.com/forum/showthread.php?t=186689

 

aidenparte,
Thanks for coming over. It was great to meet you, also to inspect & ride in your very nice 400i! Gotta get me one someday.

Thanks for helping measure it's fuel line lengths. I've now got enough info to calculate the lengths for a 400i fuel line kit.

I must quibble about both low pressure & absence of pulsations:
The injector nozzle creates flow pulsations as it vibrates, and the inlet to the line is restricted by a very narrow slot in the distributor.

I guess what is meant by 'low' pressure is subjective. The BOSCH injectors open at 3.5bar(50 psi) & typically operate at close to 4 bar(58 psi), this is typical for injectors, but high relative to carb system pressures, but low compared to brake line pressures.

I agree about it being a resonance phenomenon, the P* forum described 5x3 line related problems as 'damping the nozel oscillations' due to line wall elasticity.

IMHO, given the same injectors, the longer the plastic line's length and/or it's larger % of total length, the more likely wall elasticity & ID will be to have significant effects.

The 400i injector line plastic sections are 15 & 15.5 mm long, which is about 1/2 the 308/328/Mondial injector line plastic section lengths. I suspect the explanation for the 1 5x3 injector line working ok is that the shorter plastic lengths in 400i injector lines make them less sensitive to differences in the plastic section's wall elasticity than the 308 lines.

I'm still going to include enough 6mm line in the 400i kits for those who want to replace the injector sections, or just want to put it on the shelf as 'cheap insurance' against a damaged line. It only adds a few $ to the kit price.

 

I just got asked to supply V12 kits. I thought I'd already announced the 512, 400i & 412 kits, but can't find the post so here they are:

512 K-Jetronic (CIS) Fuel Line Restoration Kit $83.17+ $11.90 S&I within the US & APOs. Ask for international shipping quote.
Sufficient Correct 5mm, 6mm, & 8mm polyamide line to restore the injection system.

400i & 412 K-Jetronic (CIS) Fuel Line Restoration Kit: $77.98+ $11.90 S&I within the US & APOs.
Sufficient Correct 5mm, 6mm, & 8mm polyamide line to restore the injection system.

I can also supply the various barb fittings, for a partial fitting list & pricing, see post #123 in this thread: http://www.ferrarichat.com/forum/showthread.php?t=186689

If you don't see a fitting that you need, please eMAIL me, most likely I can source it in a week or two, but some I may have to special order from Germany which takes 6 to 10 weeks as they come in monthly containers shipped by sea.

To order, please click on my name by this post & select: [Send eMAIL to Verell]
(Please make sure your profile has your current eMAIL address.)

SORRY, I CAN'T SUPPLY COMPLETE LINES or RESTORATION SERVICE:
I've also had requests for complete new V12 fuel line kits, and also to provide a fuel line restoration service. I'm sorry, but the amount of work involved in measuring, documenting & creating fixtures to recreate the various metal line lengths and their bends is more than I can sign up for.

Also, I just can't afford the necessary liability insurance. I've come across this 'show stopper' phrase on several web sites selling fuel line components:

[Quote:]
... By law the assembly producer will be liable for any injuries or damages...
[/quote]

My thanks to Aiden & Rizzo who for the help in getting the lengths for these cars.