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scorpion1110
07-03-2019, 05:56 PM
So the 55 doesnt like to start when its been sitting. Squirt some gas in the rear carb and it fires up. Its a hassle and I am thinking about an auxilary electric fuel pump for priming, actuated off of a toggle.

I think a pump that allows for a flow through like an Airtex will work. My only question is the plumbing.

Is it as simple as coming off the tank sender with fuel hose and then running fuel hose back to the line and proceeding up to the mechanical pump and carb?

Some of the diagrams have T fittings and bypasses but I would like to keep it simple.

Anyone do this in their car? Quick schematic?

Thanks, Scorp

WagonCrazy
07-06-2019, 08:52 AM
I dont' have any advice on this Scorp. I personally have had nothing but problems with any of my carbureted vehicles that sit for long. Just too many small parts that glaze/gum up when the gasoline evaporates from sitting.
So my smart ass comment here is to switch to a fully fuel injected setup. (Warning: Domino effect dead ahead here.) :-)

royk
07-06-2019, 09:40 AM
When cold take air cleaner off and watch at accellerator nozzles for fuel squirting when stroking carb sveral times if not carb is draining back possibly. My car sit some times for weeks and have not had to prime it has a wcfb on it.

markm
07-06-2019, 09:50 AM
Fuel injected stuff will crank a bit if let sit for 4-6 weeks.

BamaNomad
07-06-2019, 12:25 PM
I dont' have any advice on this Scorp. I personally have had nothing but problems with any of my carbureted vehicles that sit for long. Just too many small parts that glaze/gum up when the gasoline evaporates from sitting.
So my smart ass comment here is to switch to a fully fuel injected setup. (Warning: Domino effect dead ahead here.) :-)

Paul,

sounds to me like your problems with carburetors are with running ethanol fuel... Do you have any alternatives out there?

scorpion1110
07-06-2019, 05:03 PM
I dont' have any advice on this Scorp. I personally have had nothing but problems with any of my carbureted vehicles that sit for long. Just too many small parts that glaze/gum up when the gasoline evaporates from sitting.
So my smart ass comment here is to switch to a fully fuel injected setup. (Warning: Domino effect dead ahead here.) :-)

Could be the crap fuel they sell now.

When I prime it; it fires up. I was hoping to just jog the mechanical pump using an electric.

I have seen a few diagrams, but I want to keep it simple and they have multiple T's and a bypass line.

Current prime is a mustard bottle.

Scorp

markm
07-07-2019, 07:55 AM
I use a snow plow oil bottle with a nipple for priming, The worst vehicle in fleet is Dads 68 Mustang, easiest is 1946 Chevy pu with a q-jet. Solution is drive them more.

WagonCrazy
07-07-2019, 04:08 PM
Yes Bama...it's definately the crap ethanol mixed fuel. No other alternatives here in the nanny state. Shit just dries up in a week or less in your carb.

Rick_L
07-07-2019, 04:09 PM
If the electric pump is truly flow-through, seems all you'd need is to put it in series with the mechanical pump. The mechanical pump will still have to fill the carb fuel bowl if it's empty, so it still may take a few revolutions with the starter.

More positive instant start would be EFI, or even electric only.

chevynut
07-07-2019, 05:03 PM
..it's definately the crap ethanol mixed fuel.

What's "crap" about it? If the car is set up to use ethanol blended fuels, the only real issue is slightly lower gas mileage. It does make gasoline slightly more volatile, so that's why closed fuel systems are used. No OEMs have produced a carbureted car in decades, so the fuel manufacturers don't care about them. There are solutions to help with the problems seen with carburetors and those problems can be mitigated. Most new EFI engines will run fine with ethanol blended fuels and benefit from the higher octane and cleaner emissions. I see little or no downside. Carbureted engines are a tiny fraction of the engines in use today.....and shrinking.

scorpion1110
07-07-2019, 05:35 PM
What's "crap" about it? If the car is set up to use ethanol blended fuels, the only real issue is slightly lower gas mileage. It does make gasoline slightly more volatile, so that's why closed fuel systems are used. No OEMs have produced a carbureted car in decades, so the fuel manufacturers don't care about them. There are solutions to help with the problems seen with carburetors and those problems can be mitigated. Most new EFI engines will run fine with ethanol blended fuels and benefit from the higher octane and cleaner emissions. I see little or no downside. Carbureted engines are a tiny fraction of the engines in use today.....and shrinking.

Cant help yourself CN can you?

Id still guess that carbs are still ahead of EFI in terms of representation in the collector car hobby, if you counted all running hobby cars.

BTW, NASCAR ran carbs through 2012.

So when can I expect to see an EFI weedwhacker? Seems the tiny carburated motor hates corn, and since carbs are on the way out.....

Rick_L
07-07-2019, 05:44 PM
Got news for you Scorp and CN, they sell nonethanol fuel by the quart premixed with 2 stroke oil at any place you can buy a weedeater or other 2 stroke lawn equipment. Rather expensive if you do lawn care for a living or have acreage but not too bad for the typical homeowner.

The ethanol fuel plays hell with the average homeowner's two stroke engines. Maybe not quite so bad for the landscapers and tree trimmers since they use their stuff every day.

scorpion1110
07-07-2019, 06:21 PM
Got news for you Scorp and CN, they sell nonethanol fuel by the quart premixed with 2 stroke oil at any place you can buy a weedeater or other 2 stroke lawn equipment. Rather expensive if you do lawn care for a living or have acreage but not too bad for the typical homeowner.

The ethanol fuel plays hell with the average homeowner's two stroke engines. Maybe not quite so bad for the landscapers and tree trimmers since they use their stuff every day.

Sure do and real gas too w/o oil. Whats it about $15/gallon? More expensive than Cam2.

BTW, even draining that Ethanol junk and purging the carb doesnt always get the corn gum out of the mini carb on my snowblower. Purged it and still had to pull the carb apart to get it to run.

bigblock
07-08-2019, 06:52 AM
I buy the VP fuel that's pre-mixed for the two strokes and the shelf life is 2yr+ and have never had a problem with the weed and blowers.

chevynut
07-08-2019, 09:19 AM
Got news for you Scorp and CN, they sell nonethanol fuel by the quart premixed with 2 stroke oil at any place you can buy a weedeater or other 2 stroke lawn equipment.

Yes, there are alternatives for people that still have small equipment with carbs. Those are going by the wayside too. I see Stihl and many others are selling chainsaws, weedeaters, and mowers with electric motors.


The ethanol fuel plays hell with the average homeowner's two stroke engines. Maybe not quite so bad for the landscapers and tree trimmers since they use their stuff every day.

I've never had a problem with it. Both my ATVs, my JD riding mower, my chainsaw, and my weedeater all use it. They all sit all winter with fuel in them and I've never had a problem with any of them. I rebuilt my ATV carb a while ago that I've had for 15 years and it was clean inside. Newer equipment is made to use ethanol-blended fuel.

chevynut
07-08-2019, 09:29 AM
Cant help yourself CN can you?

Just stating facts, scorp.


Id still guess that carbs are still ahead of EFI in terms of representation in the collector car hobby, if you counted all running hobby cars.

Perhaps, but "hobby cars" represent a teeny, tiny fraction of the cars on the roads. And since they're driven so little they have very little influence on decisions made by gasoline refiners or lawmakers. It's easier than ever to replace a carb with EFI nowadays.....and cheaper than ever.


BTW, NASCAR ran carbs through 2012.

Then what happened? :) That was 7 years ago.


So when can I expect to see an EFI weedwhacker? Seems the tiny carburated motor hates corn, and since carbs are on the way out.....

Lots of ATVs now have EFI. Stihl makes an EFI chainsaw. Lawn mowers have EFI now. For things like trimmers, it's likely electric power will overtake gas power, imo. Carbs are relics of the past.

https://www.stihl.com/STIHL-power-tools-A-great-range/Chainsaws/Petrol-chainsaws-for-forestry/287735-131/MS-500i.aspx

https://www.cubcadet.com/equipment/cubcadet/CubCadetFullPageArticleResponsiveDisplayView?langI d=-1&storeId=10051&catalogId=14101&pageView=promos/electronic_fuel_injection.html

EFI for small engines....

https://opereviews.com/news/the-advantages-of-efi-for-small-engines/

markm
07-08-2019, 09:32 AM
Local Renegade Fuel dealer sells Hot Rod 93 without corn crap for 4.95 a gallon. That is my new plan, was using $8 gallon 110 in lawn equip and chain saws 50/50 with 91 pump.

scorpion1110
07-08-2019, 04:25 PM
Just stating facts, scorp.



Perhaps, but "hobby cars" represent a teeny, tiny fraction of the cars on the roads. And since they're driven so little they have very little influence on decisions made by gasoline refiners or lawmakers. It's easier than ever to replace a carb with EFI nowadays.....and cheaper than ever.



Then what happened? :) That was 7 years ago.



Lots of ATVs now have EFI. Stihl makes an EFI chainsaw. Lawn mowers have EFI now. For things like trimmers, it's likely electric power will overtake gas power, imo. Carbs are relics of the past.

https://www.stihl.com/STIHL-power-tools-A-great-range/Chainsaws/Petrol-chainsaws-for-forestry/287735-131/MS-500i.aspx

https://www.cubcadet.com/equipment/cubcadet/CubCadetFullPageArticleResponsiveDisplayView?langI d=-1&storeId=10051&catalogId=14101&pageView=promos/electronic_fuel_injection.html

EFI for small engines....

https://opereviews.com/news/the-advantages-of-efi-for-small-engines/

CN-

Lets get real.

I have watched your Nomad build thread. I can honestly say I like much of what you have done, and dislike alot as well. Do you know what I dont like?

Nope, because I respect what you are building and what you are running. Just like I appreciate and respect that Sid is running a BBC with a carb on top of his intake with a great old-school look.

I appreciate that you are a smart guy with ideas and opinions, however you seem to incessantly bash those ideas or trends that you dont share. And thats not necessary.

Great that you like, 17s, 18s and 19s. I dont. And thats ok. Great that you like EFI. I am not interested in it. Great that you like stepper motors. I could care less.

Thats what the old car hobby is about- different ideas. Different builds.

OK, you dont like carbs. I run two of them.

I posted that thread, hoping you might comment with an idea about plumbing the fuel lines, instead you take the opportunity to go to the pulpit and bash carbuerated induction again.

If you want people and ideas on this site, relax the bashing, gentle or not. Because frankly you do it too often, and you don't need to.

Scorp

markm
07-08-2019, 05:41 PM
Corn Gas fucked up the injectors on a buddy of mines kids injected Camaro and trashed the Gas tank and fuel pump too. Way more expensive than a carb kit.

Rick_L
07-08-2019, 06:41 PM
Let me let you in on a secret. "Corn gas" can screw up the fuel pump and gas tank on a carb'd setup too, as well as the carb. You have to deal with this no matter what you have.

BamaNomad
07-08-2019, 07:03 PM
Let me let you in on a secret. "Corn gas" can screw up the fuel pump and gas tank on a carb'd setup too, as well as the carb. You have to deal with this no matter what you have.

X2 .. and it's even worse in a car/vehicle/engine which isn't used daily or regularly... seems when the stuff 'sits' is when it does the damage...

markm
07-09-2019, 05:55 AM
Let me let you in on a secret. "Corn gas" can screw up the fuel pump and gas tank on a carb'd setup too, as well as the carb. You have to deal with this no matter what you have.

You are preaching to the choir, that comment was for the know it all, its an equal opportunity destroyer.

WagonCrazy
07-09-2019, 11:43 AM
Carbureted engines are a tiny fraction of the engines in use today.....and shrinking.

Sure. But still have the Holley 670 on the stock 327 in my wifes 59 Apache, and that sucker just dries up in a week or so if not driven. Then leaves the needle sticky, which causes the floats to stick "open" and thus pours gas out the side of the carb eventually. Have fixed it several times. Just need to drive the truck more often so it won't evaporate and dry out. (that's the moral of the story).