General Discussion Discuss your Oldsmobile or other car-related topics.

'61 Olds 98 fuel lines?

Thread Tools
 
Search this Thread
 
Old May 15, 2023 | 06:45 AM
  #1  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
'61 Olds 98 fuel lines?

Hello all,

Just wondering pros / cons to switching from rubber 5/16" ID fuel line from fuel pump to carb, vs stainless lines. Is it necessary?
Thanks for the input.

Btw, carb is a 4 bbl rochester. 394 cu in engine.

Thanks!
Old May 15, 2023 | 06:54 AM
  #2  
66SportCoupe's Avatar
Registered User
 
Joined: Nov 2019
Posts: 1,416
From: St. Michael, MN
There should never be a rubber fuel line from the pump to the carb. Always a hard line. Prevents the common engine fire with a rubber line.
Old May 15, 2023 | 07:11 AM
  #3  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
So I'll need to go with stainless and get compression fittings for the outlet of fuel pump to carb and for the inlet of the carb to make things safer.
I appreciate the input!
Old May 15, 2023 | 07:12 AM
  #4  
Olds64's Avatar
Moderator
 
Joined: Jul 2007
Posts: 18,227
From: Edmond, OK
^^^THIS^^^

I used AN steel braided fuel hose between the fuel pump and the carburetor on my 71 and discovered it has started leaking. I plan to fabricate a steel line to replace the AN hose.
Old May 15, 2023 | 04:50 PM
  #5  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by Olds64
^^^THIS^^^

I used AN steel braided fuel hose between the fuel pump and the carburetor on my 71 and discovered it has started leaking. I plan to fabricate a steel line to replace the AN hose.
what type of fittings do you recommend? Flared fittings?
Old May 15, 2023 | 05:06 PM
  #6  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by 66SportCoupe
There should never be a rubber fuel line from the pump to the carb. Always a hard line. Prevents the common engine fire with a rubber line.
another question, what size ID hard line should
i be running?
Old May 15, 2023 | 05:15 PM
  #7  
66SportCoupe's Avatar
Registered User
 
Joined: Nov 2019
Posts: 1,416
From: St. Michael, MN
Use a double flared 5/16 or 3/8 line If you can find a line about the length you want with the right fittings on it at parts store just take that and bend it up. You might need some other fittings to make it work.
Old May 15, 2023 | 05:25 PM
  #8  
fleming442's Avatar
Registered User
 
Joined: Mar 2010
Posts: 3,868
From: Mt.Ary, MD
Going through this, now. Get a GOOD double flare set to do stainless. I just scored this from my brother's estate, and it's night and day compared to the Ding How crap.

I am doing 3/8" stainless (measures O.D., btw) on this 62 Impala. Use inverted flare fittings (like brake lines); the brass cone nut style don't work so good. There's too much friction in the fitting, and you lose about half of the sealing surface inverted flare offers.

He had a rubber fire hazard

Last edited by fleming442; May 15, 2023 at 05:28 PM.
Old May 15, 2023 | 05:35 PM
  #9  
Supernice88's Avatar
Art S
 
Joined: May 2021
Posts: 903
From: Warwick, RI
You should be using 3/8". I replaced the rubber lines on mine with tubing. At first I tried 5/16" figuring it would be easier to bend but ended up with 3/8" because there wasn't enough fuel getting into the carb.
Do you still have the glass bowl filter that was factory? If you need pics of how I set it up let me know.
Old May 15, 2023 | 06:34 PM
  #10  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by Supernice88
You should be using 3/8". I replaced the rubber lines on mine with tubing. At first I tried 5/16" figuring it would be easier to bend but ended up with 3/8" because there wasn't enough fuel getting into the carb.
Do you still have the glass bowl filter that was factory? If you need pics of how I set it up let me know.
I was just wondering that… the fuel filter. Nope. Just the metal filter canister in-line of the current rubber hose after the furl pump.

Where should I plum the fuel filter after running the new 3/8” steel lines?
Old May 15, 2023 | 06:45 PM
  #11  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by fleming442
Going through this, now. Get a GOOD double flare set to do stainless. I just scored this from my brother's estate, and it's night and day compared to the Ding How crap.

I am doing 3/8" stainless (measures O.D., btw) on this 62 Impala. Use inverted flare fittings (like brake lines); the brass cone nut style don't work so good. There's too much friction in the fitting, and you lose about half of the sealing surface inverted flare offers.

He had a rubber fire hazard
thanks for the info. I have my grandpas old flaring kit. Should work well. Looks just like the one you have pictured.
Old May 16, 2023 | 03:24 AM
  #12  
Olds64's Avatar
Moderator
 
Joined: Jul 2007
Posts: 18,227
From: Edmond, OK
You can install a fuel filter between the solid line on the frame and the fuel pump. I suppose you could install it under the car between the fuel tank and solid line on the frame, but talk about a PITA.
Old May 16, 2023 | 05:19 AM
  #13  
chopolds's Avatar
Registered User
 
Joined: Nov 2015
Posts: 482
From: Howell, NJ
A nice bent steel line is both safe, and take up less room than rubber, or SS braided lines. Much cleaner! I installed the glass filter on this 61, just above the fuel pump, as it didn't have the vacuum booster there.


Old May 16, 2023 | 05:43 AM
  #14  
Supernice88's Avatar
Art S
 
Joined: May 2021
Posts: 903
From: Warwick, RI
Originally Posted by eggydrummer
I was just wondering that… the fuel filter. Nope. Just the metal filter canister in-line of the current rubber hose after the furl pump.

Where should I plum the fuel filter after running the new 3/8” steel lines?

You can get the bowl filter here: https://www.fusickautomotiveproducts...?number=854444
Old May 16, 2023 | 05:50 AM
  #15  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by chopolds
A nice bent steel line is both safe, and take up less room than rubber, or SS braided lines. Much cleaner! I installed the glass filter on this 61, just above the fuel pump, as it didn't have the vacuum booster there.

very helpful! Thank you for the pics as well. This has been very helpful you guys!
Old May 16, 2023 | 05:58 AM
  #16  
Supernice88's Avatar
Art S
 
Joined: May 2021
Posts: 903
From: Warwick, RI
Great looking customizing job!
Old May 16, 2023 | 07:31 AM
  #17  
67OAI's Avatar
Old(s)GuysRule
 
Joined: Apr 2016
Posts: 1,558
From: S.E.Georgia
Stainless line will be a bit more difficult to work than the standard steel line that is readily available and many folks have had a difficult time getting a good seal with the double flared stainless. Copper "washers" are available to assist getting a good seal with the stainless; look at some of the other posts on this subject for more info. I recommend the standard steel line, it will last a long time and be easier to work with.
Old May 16, 2023 | 05:46 PM
  #18  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by Supernice88
Does it matter if the Fusick site doesn't include 1961 Olds for that glass fuel filter? Does it really matter?
Old May 16, 2023 | 05:47 PM
  #19  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by eggydrummer
very helpful! Thank you for the pics as well. This has been very helpful you guys!
The glass filter there is just suspended by the steel lines correct? It is not tied down or held down except for the lines going in, and going out to the carb?
Old May 17, 2023 | 05:35 AM
  #20  
Supernice88's Avatar
Art S
 
Joined: May 2021
Posts: 903
From: Warwick, RI
Originally Posted by eggydrummer
The glass filter there is just suspended by the steel lines correct? It is not tied down or held down except for the lines going in, and going out to the carb?
Correct, it's suspended by the steel line. The people at Fusick are very helpful, give them a call to confirm the part. From what I see of the part on their site is the fittings going in and out look the same as factory.
Old May 17, 2023 | 05:48 AM
  #21  
chopolds's Avatar
Registered User
 
Joined: Nov 2015
Posts: 482
From: Howell, NJ
It usually does, but if you look closely at my picture, you can see a bracket I made, going up along the back of the filter, and bolted to the top of it.
Old Jun 8, 2023 | 06:33 PM
  #22  
eggydrummer's Avatar
Thread Starter
Registered User
 
Joined: Jun 2022
Posts: 378
From: Eden Prairie, MN
Originally Posted by chopolds
A nice bent steel line is both safe, and take up less room than rubber, or SS braided lines. Much cleaner! I installed the glass filter on this 61, just above the fuel pump, as it didn't have the vacuum booster there.

Is that all 3/8 tubing there? I’m having trouble going from the 3/8 inverted flare nuts that slides along the tubing, to the filter. The filter is 1/8”. I need to go 1/8” into either end of filter, and have the female end accept the 3/8 inverted flare. HELP! Any suggestions on fittings so I’m not reducing like crazy and having way more fittings going than I need be!!!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mdd71
Big Blocks
14
Aug 15, 2024 03:54 PM
jskorz
Big Blocks
10
Dec 11, 2021 03:30 PM
jd25q
General Questions
3
Jan 31, 2015 01:53 PM
mefirst72
Small Blocks
0
Feb 10, 2013 06:37 PM
69Rman
Small Blocks
10
Feb 26, 2010 05:10 AM




All times are GMT -7. The time now is 07:28 AM.