Modern Gas and Carburetors
#1
12-02-2008, 08:54 PM
#3
12-04-2008, 12:34 PM
Feel compelled to add this even though its not "ford truck related". the new fuel is BAD on 2 stroke engines, it has resulted on a no start cond. on my outboard motors. the fuel attacks the rubber tips on float bowl needle valves, making them stick in the closed position shutting off the fuel flow. Had to rebuild the carbs on my 50hp mercury outboard, now I always run the fuel out of the carbs before trailering the boat. I would recomend doing this w/ all 2 strokes, lawn equip etc...........Havent had a problem since doing this after every use...........Hope this saves somebodys fishing trip!
#4
12-07-2008, 04:12 AM
#5
12-07-2008, 11:35 AM
I have gotten to the place that I add a few ounces of Marvel Mystery to my rigs fuel tank when I fill up. I believe it keeps stuff lubed a little. With in tank electric fuel pumps I believe it gives them longer life. I no longer have 2 cycle stuff so I can't suggest any help there.
Craig
Craig
#6
12-07-2008, 07:55 PM
If you find a cure please post it so we will have an answer.
Thanks, Craig
#7
12-07-2008, 09:57 PM
Trending Topics
#9
12-10-2008, 02:09 PM
It's true that todays gas on older carb vehicles can cause issues. Usually it deformes, cracks, and some times shrinks seals. Like Carbs on accelerator pumps, and where you may have O-rings. Lots of stuff used Rubber, Buna-n type seals Which were never really designed for 90%gas/10% Ethanol Alcohal mix. Buna-n holds up to gas and alcholal but over time it can deform.
Viton seals and gaskets are impervious to alcohals, as well as moisture and solvents.
Holly 4150/4160 Ethanol kits
13141R
2-4089
135-10
Viton seals and gaskets are impervious to alcohals, as well as moisture and solvents.
Holly 4150/4160 Ethanol kits
13141R
2-4089
135-10
#10
12-10-2008, 04:39 PM
It's true that todays gas on older carb vehicles can cause issues. Usually it deformes, cracks, and some times shrinks seals. Like Carbs on accelerator pumps, and where you may have O-rings. Lots of stuff used Rubber, Buna-n type seals Which were never really designed for 90%gas/10% Ethanol Alcohal mix. Buna-n holds up to gas and alcholal but over time it can deform.
Viton seals and gaskets are impervious to alcohals, as well as moisture and solvents.
Holly 4150/4160 Ethanol kits
13141R
2-4089
135-10
Viton seals and gaskets are impervious to alcohals, as well as moisture and solvents.
Holly 4150/4160 Ethanol kits
13141R
2-4089
135-10
#11
12-13-2008, 12:12 PM
Also Ethanol for two storkes isbad also cause of Phase seperation which can cause you to burn cylinders.
Two Stroke Engines
Phase Separation in ethanol-blended gasoline, however, can be more damaging than in MTBE blends and straight gasoline. When phase separation occurs in an ethanol blended gasoline, the water will actually begin to remove the ethanol from the gasoline. Therefore, the second phase which can occur in ethanol blends contains both ethanol and water, as opposed to just water in MTBE blends and conventional gasoline. In the case of two-stroke engines, this water-ethanol phase will compete with the blended oil for bonding to the metal engine parts. Therefore, the engine will not have enough lubrication, and engine damage may result.
Phase Separation in ethanol-blended gasoline, however, can be more damaging than in MTBE blends and straight gasoline. When phase separation occurs in an ethanol blended gasoline, the water will actually begin to remove the ethanol from the gasoline. Therefore, the second phase which can occur in ethanol blends contains both ethanol and water, as opposed to just water in MTBE blends and conventional gasoline. In the case of two-stroke engines, this water-ethanol phase will compete with the blended oil for bonding to the metal engine parts. Therefore, the engine will not have enough lubrication, and engine damage may result.
#12
12-13-2008, 12:21 PM
#14
12-13-2008, 12:51 PM
#15
12-13-2008, 01:08 PM
Join Date: Mar 2005
Location: Marlboro Mental Hospital.
Posts: 61,001
Received 3,114 Likes
on
2,173 Posts
i have 2 brand new Holley 4 barrels that are garbage from the "new and improved" gas. the welder and snowblower get drained and run dry after each use to prevent them from not running when needed.
and you can not buy pure gas in New Jersey any more. anything sold here after 10/01/07 must be at least E-10
and you can not buy pure gas in New Jersey any more. anything sold here after 10/01/07 must be at least E-10