Author Topic: Fuel Line/Fliters (Read 3354 times)

Chris W · « **on:** November 18, 2008, 05:37:20 PM »

I am redoing my fuel lines and thinking about cleaning it up and trying to improve what was there. I have 2 of the plastic filters both after the T too the carburetors is the necessary or should I just run one before the fuel pump? Any recommendations on filters?

Thanks

Bruce · « **Reply #1 on:** November 18, 2008, 06:30:17 PM »

I don't use any filters.

Chris W · « **Reply #2 on:** November 18, 2008, 06:38:44 PM »

Just the tank screen?

Bruce · « **Reply #3 on:** November 18, 2008, 06:58:05 PM »

For about 15-18 years, no.
Since my car is a 75, (FI = external filter) it did not come with a screen at the tank, so I never used one. A few years ago when I had the tank out for some reason I can't remember, I installed one just because I had it.

James Buchan · « **Reply #4 on:** November 19, 2008, 09:20:30 AM »

I agree - those plastic fuel filters are a leak waiting to happen imo - if you are wanting a filter go with one that you can open up and inspect and is reusable. This is the one I have used in the past with good results...

http://www.aeromotiveinc.com/products.php?prod=261

Chris W · « **Reply #5 on:** November 19, 2008, 11:58:06 AM »

That's nice, but I am running stock line with no fittings.

Glenn · « **Reply #6 on:** November 19, 2008, 02:29:54 PM »

I use a $7 filter that has a metal can and filters to 8 microns.

it's application is for a Toro lawn tractor.... don't laugh, it works just fine.

Bruce · « **Reply #7 on:** November 19, 2008, 02:44:06 PM »

If anyone is using those 99

Chris W · « **Reply #8 on:** November 19, 2008, 03:33:55 PM »

I agree it does not make sense to use a ten cent filter on a $$$$ engine. I will check out the tractor store see what they have.

neil68 · « **Reply #9 on:** November 20, 2008, 06:44:11 PM »

At our local IHRA track, we cannot pass the tech inspection with a plastic fuel filter...

Chris W · « **Reply #10 on:** November 21, 2008, 11:33:32 AM »

I am going to redo all the lines and then see how the tank looks and think about a filter up front.

Here is the redo of the lines that were just flopped in the engine compartment.

Now as far as size line goes. I was going to do 5mm from the pump to the T and then 7mm to the carbs. Any difference in running 7mm on everything? The 5mm is a stretch on the brass T I have.

Bruce · « **Reply #11 on:** November 21, 2008, 12:21:39 PM »

Better would be to go to your local auto parts store and get some brake hard lines. Also get a brass Tee. Then use that instead of all that loose rubber hose. Use short pieces of rubber hose only to couple the ends to the pump and carb.

Chris W · « **Reply #12 on:** November 21, 2008, 12:36:28 PM »

I thought about that, but my thought was that you will have more joints/more places to leak from......

I have a brass barbed T already, are you saying use a threaded one or barbed one?

Bruce · « **Reply #13 on:** November 21, 2008, 01:32:56 PM »

Metal lines are much more robust than rubber hose. Use brake lines and the flared ends seal perfectly. The only hose pieces you would have is one short one at each carb connecting the hard line to the carb inlet, and 2 hose pieces at the pump. Use clamps to secure the hard line to the forward part of the shroud where you don't see it.

Glenn · « **Reply #14 on:** November 22, 2008, 02:56:56 PM »

Quote from: Chris W on November 21, 2008, 11:33:32 AM

I am going to redo all the lines and then see how the tank looks and think about a filter up front.

Here is the redo of the lines that were just flopped in the engine compartment.

Now as far as size line goes. I was going to do 5mm from the pump to the T and then 7mm to the carbs. Any difference in running 7mm on everything? The 5mm is a stretch on the brass T I have.

Chris,

I used .250"OD/.196"ID stainless tubing and it works just fine.

egspot · « **Reply #15 on:** November 22, 2008, 03:13:10 PM »

That looks like very COOL work. Thanks for the pictures.

Chris W · « **Reply #16 on:** November 23, 2008, 08:01:50 PM »

I picked up some 3/16 brake line and mocked it up. I need to go 1/4 like what Glenn used so the 7mm fuel line fits on it better, but this is the basic idea I have so far.

Thanks for the help!

Bruce · « **Reply #17 on:** November 23, 2008, 09:02:51 PM »

That's the right idea.

Glenn · « **Reply #18 on:** November 24, 2008, 03:05:10 PM »

You'll want to keep the hardline close to the shroud. Otherwise it will make getting the engine in harder and access to the mounting bolts difficult

Chris W · « **Reply #19 on:** November 24, 2008, 08:01:12 PM »

I just need to make up one more line.

70's Looker · « **Reply #20 on:** November 24, 2008, 09:17:43 PM »

does the hardline go through the hose at the bend by the oil cooler tin? or just the hose?

Chris W · « **Reply #21 on:** November 24, 2008, 09:45:44 PM »

It's just a spot of soft hose over the hardline to keep it from rattling.

70's Looker · « **Reply #22 on:** November 24, 2008, 09:50:07 PM »

nice!

silas · « **Reply #23 on:** November 27, 2008, 11:01:19 PM »

Quote from: Chris W on November 24, 2008, 08:01:12 PM

I just need to make up one more line.

f@#kin eh, chris!!! looks souper sano!!!!

Hotrodvw1 · « **Reply #24 on:** January 10, 2009, 01:00:30 PM »

Sanitary Chris! Here's what I did for mine:

3/8" ss tube and tube nuts/sleeves, all AN/JIC fittings.

Filter: