Pauerman

I thought I'd share some useful information on a common problem area for the 944 / 951 / 944S & S2 cars.

Here is a breakdown for the DIY'er out there looking to retrofit / replace their aging fuel lines. These parts allow you to convert over to a replaceable line format using AN fittings which makes it much easier later on down the road to remove, inspect or replace.

I've supplied this fuel line arrangement to many in the 944 community over the years with great success and think that the guys who are handy enough to install these parts would benefit greatly from this info.

The parts list:

Metric compression adapters - 8mm (return line) & 10mm (feed line)
Manufacturer is Brennan Industries

Male JIC to Male Metric 8mm Adapter - p/n 7005-06-L08-14 $9.50
Metric Compression Nut - p/n VS8900-L08 $.52
Metric Bite Ring - p/n VS8860-L08 $.58

Male JIC to Male Metric 10mm Adapter - p/n 7005-06-L10-16 $8.25
Metric Compression Nut - p/n VS8900-L10 $.65
Metric Bite Ring - p/n VS8860-L10 $.67






These adapters require you to cut the factory metal hard lines with a small pipe cutter that you can get at Home Depot or Harbor Freight for about $5. Once the adapters are installed, the flexible hose can now be assembled.

The feed and return hoses will use readily available AN-6 hose end fittings that can be sourced at practically any local speed shop or online. Typical cost will range from $5-$8. Installing the hose ends is very straight forward and is much easier if you use the black, nylon braided hose. You can cut the black braided hose with scissors and overall it is much easier to work with compared to the stainless braided hose. It is more than up to the task of handling the low pressure that the fuel system generates.

Next is the metric fitting for the fuel rail. The Germans use a different sealing format with their hose end fittings. It's called "globe" which is basically a half circle. These metric rail fittings are imported and distributed by ONE and only one company out of Florida - British American Transfer, aka BAT Inc.

The fuel damper on the 944/951 cars use a 16mm x 1.5 thread pitch and BAT supplies two options for this fitting - an "in house" brand as well as the imported RTEC brand. Both fittings are quality pieces but the RTEC brand is forged and is therefore more expensive. p/n FS-1606 $11.35 and FS-1606F $18.25

An alternative damper connection is also available. BAT has a metric 16mm x 1.5 to AN-6 adapter p/n AF16AN6 $7.45 that will allow you to use a standard AN-6 hose end fitting on your supply hose and it will connect to this adapter. This option is physically much longer once installed and the hose fitting comes very close to touching the #2 intake runner. It is really pointless since the combined cost of the adapter plus the AN-6 fitting are almost the same plus the final fitment with just one metric fitting is much better.

As you can see, BAT supplies 90 degree fittings that will allow replacement of your factory "jumper" line. These fittings are more expensive and 2 fittings are needed - p/n F90-1606 $25.50






For the S2 guys, the metric fittings on the rail and damper are 14mm x 1.5
The fittings can be purchased from BAT with p/n FS-1406 $11.35 for the straight fittings and p/n F90-1406 $25.50 for the 90 degree fitting.






The final assembly of the fuel lines will look like this for 8V cars in either black nylon or stainless. Be sure to use fuel injector style clamps as shown on the stainless lines as they provide better clamping than the standard, worm gear style clamp.






After installation in the wheel well, you have the flexibility to route the return line to the rear of the cam tower so that it gets exposed to less direct heat from the headers. This is what it will look like!

Total cost for all parts required should be approximately $65 including 4 feet of nylon braided hose. Not a bad deal for preventing an engine fire!!

Hope this helps the guys who are interested and capable of this sort of install.

Cheers!

exp951

isn't better just to buy the kit from Rennbay? Travis has a great set of lines for just a little more.

http://rennbay.com/Fuel-System/944-F...85-5-1989.html

Pauerman

Looks like a great kit and I know Rennbay sells some nice stuff. This is merely information for the DIY'er 944/951 owner out there who might want to save a few bucks and take on assembling a replacement kit for themselves.

Enyoy!

gregeast

Thanks for pulling this together and sharing with the community, much appreciated.

I'm not able to see the pics?

Pauerman

I messed up Greg. I'll try to fix the photos in a bit.

Figured out how to manage the attachments - duhh

gregeast

All better now, thanks again.

reno808

x951 did the same

Voith

Your engine bay looks unreal. How did you clean it like that?

Pauerman

With a toothbrush grasshopper!

Power washer, some soap and some detail spray. Too bad it doesn't look like this anymore

Tom M'Guinn

Great post, thanks! Your fuel lines are still going strong and looking good in my engine bay. Where do you source the covered hose clamp for the FPR end? I've seen similar ones at Summit, but have never located it in black...

Crazy Eddie

Ditto
I have Vic's kit and love it ....
Thanks for posting this info Vic
Regards
Ed

Chris White

Handy stuff Vic. You gotta love it when the folks in the know help out the DIY guys.
it seems that every time I nailed down a good supplier on the compression fittings they would stop carrying them!
BTW - these are great for basic fuel line repairs. Crushed fuel lines caused by "Jack Asses" are more common than I would like and the stock fuel lines are too hard to flare.

Big E

Great stuff, was literally about to go try and figure this out. So, where can you buy those Brennan fittings? I found their website, but a search using the part numbers didn't come up with anything.

Pauerman

I'm happy to hear that the lines worked out for you guys!

Tom, I went away from using the covered hose clamps all together just because the fuel injection specific clamps were so much better and reliable. The hydraulic shops I deal with have got a bunch of colors for this given part, but I've never seen black either.

Pauerman

Over the years Chris the hydraulic shop I deal with went through the same thing. I can only guess that because the metric stuff isn't that popular in general here in the US, supply of the stuff is pretty thin.

I've used 4 different manufactures for these compression adapters and for the past 5 years Brennan Industries has been very reliable with stock.