Green 79 Potential Fuel Fire
10-27-2008, 09:57 AM
#17
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Thread Starter
James,
No it will not though I have seen it done that way.
Freon is a very "seeking" medium and the temps and pressures are very different to low pressure fuel.
All the A/C hoses are very easy to have rebuilt with the latest barrier hose at about $30 to $50 each.
Roger
No it will not though I have seen it done that way.
Freon is a very "seeking" medium and the temps and pressures are very different to low pressure fuel.
All the A/C hoses are very easy to have rebuilt with the latest barrier hose at about $30 to $50 each.
Roger
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
10-27-2008, 11:10 AM
#18
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Nice work Roger - I have the same fix on the to-do list for my 81. I have a spare set of hoses I need to "fix" then install.
10-27-2008, 11:41 AM
#19
As mentioned earlier, watch out for the EFI tubing. It is not made to handle a continuous pressure of 90 to 95 lbs that is normal on CIS systems. The OEM lined tubing is the safest and longest wearing.
Dennis
Dennis
10-27-2008, 12:21 PM
#20
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Regular fuel line hose is rated for 50psi working pressure / burst pressure 250psi. This is per SAE - 30R7. Minimum bend radius is 2.75 (or a 5.5" circle).
Fuel unjection hose is rated for 125psi working pressure / 900psi burst pressure per SAE - 30R9. Minimum bend radius is 3.75 (or a 7.5" circle).
The tubing Tim Murphy uses in his kits and what I used to replace my lines is rated for 300psi continuous, bursts over 1,000psi.
10-27-2008, 05:46 PM
#22
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Thread Starter
Dennis,
I beg to differ - SAE30R9 hose is made specifically for the EFI and CIS applications. Continuous working pressure is 125psi so CIS at 90psi and EFI at 60psi are well within the capabilites of the EFI hose.
If you are thinking about Fuel Hose - SAE30R7 - I would agree with you.
Best,
Roger
OR WHAT HACKER SAID - sorry
I beg to differ - SAE30R9 hose is made specifically for the EFI and CIS applications. Continuous working pressure is 125psi so CIS at 90psi and EFI at 60psi are well within the capabilites of the EFI hose.
If you are thinking about Fuel Hose - SAE30R7 - I would agree with you.
Best,
Roger
OR WHAT HACKER SAID - sorry
10-27-2008, 05:55 PM
#23
Roger,
The lower rated hose is about the only thing available at the local parts store for EFI. IIRC it is just labeled hi-pressure fuel line hose. Not sure how the OEM hose is rated, but I have seen it shed the outer rubber portion and still maintain its integrity.
Dennis
The lower rated hose is about the only thing available at the local parts store for EFI. IIRC it is just labeled hi-pressure fuel line hose. Not sure how the OEM hose is rated, but I have seen it shed the outer rubber portion and still maintain its integrity.
Dennis
10-27-2008, 06:29 PM
#24
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Thread Starter
Dennis,
EFI hose is readily available at the local auto stores here, however you have to be very specific and ask for EFI hose and not fuel hose. EFI hose will state SAE30R9 on it.
That is why I am very careful to emphasis EFI hose.
It is also essential to use EFI clamps that have the ability to close up uniformly without pinching the rubber hose at all. They have rolled edges as well so as not to cut into the wall of the hose.
Roger
EFI hose is readily available at the local auto stores here, however you have to be very specific and ask for EFI hose and not fuel hose. EFI hose will state SAE30R9 on it.
That is why I am very careful to emphasis EFI hose.
It is also essential to use EFI clamps that have the ability to close up uniformly without pinching the rubber hose at all. They have rolled edges as well so as not to cut into the wall of the hose.
Roger
10-27-2008, 08:51 PM
#26
Nordschleife Master
Kie,
Like your new avatar! Lovely lady, lovely bike!
Sorry I can't help with your question, but I just wanted to say, "hi"!
Blue82 has her new plates FINALLY! Had to go 82BLU because that was all that was available and I had a small Euro plate custom made for the front...I'll post some pics soon!
Like your new avatar! Lovely lady, lovely bike!
Sorry I can't help with your question, but I just wanted to say, "hi"!
Blue82 has her new plates FINALLY! Had to go 82BLU because that was all that was available and I had a small Euro plate custom made for the front...I'll post some pics soon!
10-28-2008, 12:03 AM
#29
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
10-29-2008, 01:10 AM
#30
Rennlist Member
Join Date: May 2004
Location: Seattle
Posts: 1,020
Likes: 0
Received 0 Likes
on
0 Posts
Kie,
Like your new avatar! Lovely lady, lovely bike!
Sorry I can't help with your question, but I just wanted to say, "hi"!
Blue82 has her new plates FINALLY! Had to go 82BLU because that was all that was available and I had a small Euro plate custom made for the front...I'll post some pics soon!
Like your new avatar! Lovely lady, lovely bike!
Sorry I can't help with your question, but I just wanted to say, "hi"!
Blue82 has her new plates FINALLY! Had to go 82BLU because that was all that was available and I had a small Euro plate custom made for the front...I'll post some pics soon!
She (and I) send you and Blue '82 our regards~
