Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> What is the best way to connect the 9mm to 7mm gas lines?, Now with additional dumb questions at the end...
FourBlades
post Jun 29 2009, 06:00 PM
Post #1


From Wreck to Rockin
****

Group: Members
Posts: 2,056
Joined: 3-December 07
From: Brevard, FL
Member No.: 8,414
Region Association: South East States
I have seen different things discussed, like welding up some
pieces custom, using a plumber's nightmare of 2 different
barb fittings and a connector, the mythical fuel filter with 9mm
inlet and 7mm outlet. What is the best way to deal with this?

Thanks,

John
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dr914@autoatlanta.com
post Jun 29 2009, 06:03 PM
Post #2


914 Guru
*****

Group: Members
Posts: 8,161
Joined: 3-January 07
From: atlanta georgia
Member No.: 7,418
Region Association: None
QUOTE(FourBlades @ Jun 29 2009, 05:00 PM) *

I have seen different things discussed, like welding up some
pieces custom, using a plumber's nightmare of 2 different
barb fittings and a connector, the mythical fuel filter with 9mm
inlet and 7mm outlet. What is the best way to deal with this?

Thanks,

John


\
the seven/nine step hose
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tradisrad
post Jun 29 2009, 06:08 PM
Post #3


Senior Member
***

Group: Members
Posts: 985
Joined: 11-September 06
From: San Mateo, CA
Member No.: 6,815
Region Association: Northern California
yep- a special hose
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cap'n Krusty
post Jun 29 2009, 06:11 PM
Post #4


Cap'n Krusty
**********

Group: Members
Posts: 10,794
Joined: 24-June 04
From: Santa Maria, CA
Member No.: 2,246
Region Association: Central California
While the answer to life, the universe, and all that stuff is "42", the answer to your question is "914 356 525 00", and it's available from Porsche, as well as GPR at (800) 321-5432. The part you need is a 6" +/- piece of hose with one end larger than the other. This is a SAFE and easy way to get from the plastic line to the filter, and the new hose will last for years.

The Cap'n
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
FourBlades
post Jun 29 2009, 06:16 PM
Post #5


From Wreck to Rockin
****

Group: Members
Posts: 2,056
Joined: 3-December 07
From: Brevard, FL
Member No.: 8,414
Region Association: South East States
OK, so what is the part number, and is it still available or is
there a repro?

(Thanks Captain, we must have been typing at the same time)

Thanks,

John
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
championgt1
post Jun 29 2009, 11:47 PM
Post #6


Don't embarrass me Filmore!
****

Group: Members
Posts: 2,681
Joined: 3-January 07
From: Tacoma, Washington
Member No.: 7,420
Region Association: Pacific Northwest
I just bought one of these. it worked great. The cost is very inexpensive compared to the price of the factory style rubber hose.

http://www.tangerineracing.com/stainlessFuelLines.htm
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dangrouche
post Jun 30 2009, 06:40 PM
Post #7


dangrouche
***

Group: Members
Posts: 550
Joined: 1-May 04
From: San Francisco Bay Area
Member No.: 2,012
Region Association: None
i added one of these tubing adaptors and it makes you never have to worry about a step down hose that is expensive and hard to find. thanks Chris at CFR!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cap'n Krusty
post Jun 30 2009, 07:06 PM
Post #8


Cap'n Krusty
**********

Group: Members
Posts: 10,794
Joined: 24-June 04
From: Santa Maria, CA
Member No.: 2,246
Region Association: Central California
QUOTE(dangrouche @ Jun 30 2009, 05:40 PM) *

i added one of these tubing adaptors and it makes you never have to worry about a step down hose that is expensive and hard to find. thanks Chris at CFR!


So, how much was the tube? I reckon the only place to get that thing is from CFR, while the $20-25 hose is available at any Porsche dealer in the world, although they'll have to order it. And you won't need 2 pieces of hose and 4 hose clamps, either.

The Cap'n
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dangrouche
post Jul 1 2009, 12:57 AM
Post #9


dangrouche
***

Group: Members
Posts: 550
Joined: 1-May 04
From: San Francisco Bay Area
Member No.: 2,012
Region Association: None
QUOTE(Cap'n Krusty @ Jun 30 2009, 06:06 PM) *

QUOTE(dangrouche @ Jun 30 2009, 05:40 PM) *

i added one of these tubing adaptors and it makes you never have to worry about a step down hose that is expensive and hard to find. thanks Chris at CFR!


So, how much was the tube? I reckon the only place to get that thing is from CFR, while the $20-25 hose is available at any Porsche dealer in the world, although they'll have to order it. And you won't need 2 pieces of hose and 4 hose clamps, either.

The Cap'n

$10.95 delivered price, yes, have to use two bits of hose and four clamps to join it all together.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
FourBlades
post Jul 2 2009, 07:16 PM
Post #10


From Wreck to Rockin
****

Group: Members
Posts: 2,056
Joined: 3-December 07
From: Brevard, FL
Member No.: 8,414
Region Association: South East States
OK, so I am running carbs and want to locate my fuel pump and filter up front.

I figure I need one steppen hosen from the tank to the filter and another steppen
hosen from the pump to the fat tunnel line. Then, sigh, I need another steppen
hosen from the fat tunnel line to the short fuel line in the engine bay.

How long are the steppen hosens? Are they long enough to lift out my tank
so I can change the fuel filter? I also kind of like the idea of mounting the
filter and pump next to the spare tire so that they are easy to service. Are
they long enough for that?

Finally, is it safe to use brass barbed fittings like this with fuel lines?

Attached Image

I have a buncha 5/16 and 3/8 barbed fittings I could use to make adapters.

This would let me make the hoses the length I want. I would solder the
fittings to prevent leaks after reading all the posts about fuel and teflon
tape, etc. not mixing.

Sorry for all the dumb questions, just trying to figure this out.

Thanks,

John
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
FourBlades
post Jul 3 2009, 02:06 PM
Post #11


From Wreck to Rockin
****

Group: Members
Posts: 2,056
Joined: 3-December 07
From: Brevard, FL
Member No.: 8,414
Region Association: South East States
(IMG:style_emoticons/default/icon_bump.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
roadster fan
post Jul 3 2009, 02:30 PM
Post #12


Project Frankenstein !!!!!!!!
***

Group: Members
Posts: 1,009
Joined: 24-November 05
From: Aptos, CA
Member No.: 5,184
Region Association: Northern California
QUOTE(FourBlades @ Jul 2 2009, 06:16 PM) *


Attached Image

I have a buncha 5/16 and 3/8 barbed fittings I could use to make adapters.

This would let me make the hoses the length I want. I would solder the
fittings to prevent leaks after reading all the posts about fuel and teflon
tape, etc. not mixing.



I have a similiar setup on my early car with no problems in about 1.5 years. For $10.95 delivered I would go with CFR's piece but the brass fittings will work. Thanks Chris for all the great parts (IMG:style_emoticons/default/aktion035.gif)

Jim
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Jul 3 2009, 03:22 PM
Post #13


I am Tangerine Racing
*****

Group: Members
Posts: 7,986
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(FourBlades @ Jul 2 2009, 08:16 PM) *

I figure I need one steppen hosen from the tank to the filter and another steppen
hosen from the pump to the fat tunnel line. Then, sigh, I need another steppen
hosen from the fat tunnel line to the short fuel line in the engine bay.

How long are the steppen hosens? Are they long enough to lift out my tank
so I can change the fuel filter? I also kind of like the idea of mounting the
filter and pump next to the spare tire so that they are easy to service. Are
they long enough for that?

1) Get a filter that has 3/8" ends.
2) Change the fittings on the pump to 3/8".
3) In the engine comp. put a 3/8" fitting on the pressure regulator inlet and a 5/16" fitting on the outlet.
If you can do all 3 you won't need any step hoses or adapters.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
neil30076
post Jul 3 2009, 06:47 PM
Post #14


Recovering dismantler!
**

Group: Members
Posts: 397
Joined: 12-September 06
From: San Diego ( RB) CA
Member No.: 6,826
Region Association: Southwest Region
QUOTE(roadster fan @ Jul 3 2009, 01:30 PM) *

QUOTE(FourBlades @ Jul 2 2009, 06:16 PM) *


Attached Image

I have a buncha 5/16 and 3/8 barbed fittings I could use to make adapters.

This would let me make the hoses the length I want. I would solder the
fittings to prevent leaks after reading all the posts about fuel and teflon
tape, etc. not mixing.



I have a similiar setup on my early car with no problems in about 1.5 years. For $10.95 delivered I would go with CFR's piece but the brass fittings will work. Thanks Chris for all the great parts (IMG:style_emoticons/default/aktion035.gif)

Jim

Teflon tape NO, RectorSeal TPlus2 Teflon pipe seal from Home Depot is impervious to gasoline, and works great on a brass to brass connection.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
davesprinkle
post Jul 3 2009, 07:20 PM
Post #15


Senior Member
***

Group: Members
Posts: 720
Joined: 13-October 04
From: Berkeley, CA
Member No.: 2,943
Region Association: None
Pipe threads have no place in a fuel system.

The following emoticon added by my best girl:
(IMG:style_emoticons/default/flag.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Porsche Rescue
post Jul 3 2009, 07:28 PM
Post #16


Saving and Enjoying Old Porsches
****

Group: Members
Posts: 2,978
Joined: 31-December 02
From: Bend, Oregon
Member No.: 64
Region Association: None
I also recently faced this issue. After being shamed by the Cap'n and others I decided to do it right. The factory tapered hose is about $25, which seems absurd, but then I remembered all the $ thrown at other parts of the car and it didn's seem so bad. I am sure the hose I replaced, which was still not leaking, was 39 years old. I figure I'll get my money's worth out of the new one and will know I did it right.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
FourBlades
post Jul 3 2009, 07:48 PM
Post #17


From Wreck to Rockin
****

Group: Members
Posts: 2,056
Joined: 3-December 07
From: Brevard, FL
Member No.: 8,414
Region Association: South East States

Thanks for all the info.

How long is the tapered hose?

If it is long enough to support my front fuel pump mount then it would
be a no brainer. If I have to splice in more tubing then it does not seem
as important.

John
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Porsche Rescue
post Jul 3 2009, 08:13 PM
Post #18


Saving and Enjoying Old Porsches
****

Group: Members
Posts: 2,978
Joined: 31-December 02
From: Bend, Oregon
Member No.: 64
Region Association: None
Not sure I understand what you mean by "front fuel pump mount" but factory tapered hose from plastic tunnel line to filter is 4 3/4" long.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 9th May 2025 - 12:57 AM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...