Air filter clearence

[CopperRanger]

I would like to take off the stock air cleaner and install a aftermarket round chrome one. I bought an edelbrock and put in on but if I close the hood slowly and look inside, it looks like its very close to the underside of the hood. I have a stock intake and two barrel. Is there anything out there that gives a little more room between the top of the air cleaner and the bottom of the hood? Thanks

 

[BRONCROB]

You can find a couple that will fit tight.Why are you changing you stock one?They work pretty well.

 

[CopperRanger]

It seems like the air flow is restricked with the stock air cleaner, the bronco runs great without an air cleaner on it at all, but I know I need something to keep the dirt out.

 

[jw0747]

This one works and seems priced right.

http://www.tomsbroncoparts.com/product/air-cleaner-low-profile-chrome-v8-new

 

[BRONCROB]

It seems like the air flow is restricked with the stock air cleaner, the bronco runs great without an air cleaner on it at all, but I know I need something to keep the dirt out.

You may want to check on a K&N for your stock setup.I have had problems with the edelbrock not letting hot fumes escape after killing my engine.It acts as if it's flooded.Btw I trimmed some off the bottom mounting ring of my edelbrock for clearance.

 

[CopperRanger]

You may want to check on a K&N for your stock setup.I have had problems with the edelbrock not letting hot fumes escape after killing my engine.It acts as if it's flooded.Btw I trimmed some off the bottom mounting ring of my edelbrock for clearance.

sometimes mine acts like it might be flooded on hot restarts with the stock air cleaner, that's why I think it might be restricking.

 

[JMurray]

sometimes mine acts like it might be flooded on hot restarts with the stock air cleaner, that's why I think it might be restricking.

Heat soak is your problem. Go to the junkyard and find a thick (1/4 in.) carburetor spacer for under the carb. The problem will go away for a buck or two, if not free.

 

[CopperRanger]

Heat soak is your problem. Go to the junkyard and find a thick (1/4 in.) carburetor spacer for under the carb. The problem will go away for a buck or two, if not free.

I have the thick 1/4 in. spacer under the carb

 

[BRONCROB]

I think it is heat soak magnified by ethaanol.

 

[CopperRanger]

I think it is heat soak magnified by ethaanol.

What is heat soak ? Never heard of it

 

[BRONCROB]

Just manifold and under hood heat transfering to the carb causing fuel evaporation.

 

[Broncobowsher]

What is heat soak ? Never heard of it

The intake as a stove
The carb as a pot of gasoline.
Heat transfers from the stove to the pot boiling the gasoline. The boiled gas goes down the intake flooding the engine.

Also check into lowering the float level. It may be too high making it easier to boil over into the engine. if you have the solid float it may be absorbing gas and not floating as well (higher float level to shut off the needle and seat). Brass floats can take on fuel and start to sink as well. Excessive fuel pressure will cause a higher fuel level as the float will need more fuel to push the needle and seat shut.

 

[JMurray]

The intake as a stove
The carb as a pot of gasoline.
Heat transfers from the stove to the pot boiling the gasoline. The boiled gas goes down the intake flooding the engine.

Also check into lowering the float level. It may be too high making it easier to boil over into the engine. if you have the solid float it may be absorbing gas and not floating as well (higher float level to shut off the needle and seat). Brass floats can take on fuel and start to sink as well. Excessive fuel pressure will cause a higher fuel level as the float will need more fuel to push the needle and seat shut.

This is what my Bronco, a 70, and my F250 390 pickup, also a 70, experienced when Colorado went with alky in the fuel. In both cases the spacer fixed the problem.
It's pretty easy to find out if the fuel is boiling, get it hot and pull the top off the carb. I did that at first to check the fuel float and sure enough it was boiling away.
Until you have it fixed, just treat it like a flooded engine and start it with the gas pedal to the floor.

 

[CopperRanger]

I already have a thick spacer, do you think maybe I need a new one?

 

[needabronco]

Start with a simple carb rebuild and double check your float level, as was said already. Changing air filters won't fix your problem. If you already have a phenolic spacer a thicker spacer might help, but more than likely it's a carburator issue. Start there and see what happens. Rebuilding a carburator is really easy and you'll learn a lot about how they work in the process. Your looking at a $20-25 kit, a couple cans of carburator cleaner and about an hour of your time.

 

[wildbill]

This one works and seems priced right.

http://www.tomsbroncoparts.com/product/air-cleaner-low-profile-chrome-v8-new

;D;D;D This is the type I run on mine 14X2 and I use K&N filter its on a 351W with no body lift its close but clears. Good luck with yours. %)%)%) Bill;D

 

[JMurray]

Start with a simple carb rebuild and double check your float level, as was said already. Changing air filters won't fix your problem. If you already have a phenolic spacer a thicker spacer might help, but more than likely it's a carburator issue. Start there and see what happens. Rebuilding a carburator is really easy and you'll learn a lot about how they work in the process. Your looking at a $20-25 kit, a couple cans of carburator cleaner and about an hour of your time.

X2, might just be as simple as a stuck or misadjusted choke.