Author Topic: Help! Fuel bowls on my Holley are boiling (Read 9852 times)

widing'cuda · « **on:** August 06, 2006 - 03:02:26 PM »

The fuel bowls on my Holley p/n 0-1850c are boiling. So I have problem keep the var alive when I brake down to a stop. I have to keep it at atleast 1000rpms. Witch is a bit much on a 383 engine. The Carbrurator is bolted directly to the intake, witch is a Edelbrock Performer 383. What is a should I do to get rid of this problem?

422STROKER · « **Reply #1 on:** August 06, 2006 - 03:06:09 PM »

If you don't mind it taking longer to warm up you can block the heat crossover in the intake this should help some also a phenolic spacer under the carb, and insulate your fuel lines too

Tom

Chryco Psycho · « **Reply #2 on:** August 06, 2006 - 03:36:56 PM »

possibly it is just dirt in the needle & seats

widing'cuda · « **Reply #3 on:** August 06, 2006 - 03:44:38 PM »

The fuel line is no were close to the engine. It goes from the fuel pump and out to the right fender, to the fire wall and into the carb. So maybe a spacer is the tink. But how tick must it be? Any brand you recoment?

Chryco Psycho; I can hear the fuel is boiling in the fuel bowls when I trun the engine off.

422STROKER · « **Reply #4 on:** August 06, 2006 - 04:07:12 PM »

Do you have an electric pump? It must go near the exhaust to get to the mechanical pump. Plastic or wood ones should work fine Summit Jegs etc just check your height (Hood to Carb)

Good Luck

Tom

Chryco Psycho · « **Reply #5 on:** August 06, 2006 - 05:10:26 PM »

1 " thick spacer if you have room

widing'cuda · « **Reply #6 on:** August 06, 2006 - 11:32:03 PM »

Quote from: 72challengerorange on August 06, 2006 - 04:07:12 PM

Do you have an electric pump? It must go near the exhaust to get to the mechanical pump. Plastic or wood ones should work fine Summit Jegs etc just check your height (Hood to Carb)

Good Luck

Tom

It's a mechanical pump. I have Headers.
I'll try with a spacer and see if it helps.

widing'cuda · « **Reply #7 on:** August 06, 2006 - 11:33:36 PM »

Quote from: Chryco Psycho on August 06, 2006 - 05:10:26 PM

1 " thick spacer if you have room

I'll see what I can get to fit. And get back to you guys if it works.

Chryco Psycho · « **Reply #8 on:** August 07, 2006 - 12:26:17 AM »

for $25 & an hours time it is worth installing a FelPro 1214 intake gasket & blocking the heat crossover in the intake as well

moper · « **Reply #9 on:** August 07, 2006 - 06:37:38 AM »

The fule line is routed over the headers..Bad choice. But may not be the main reason. I dont think you hear fuel boiling..that's prob just coolant in the heads. It's common to hear that on a summer day. The intake get's hot, so the block off is a good idea, provided the climate is decent, or you dont drive it when it gets cold out (like below 35�). Those carbs have smaller fuel bowls. Less volume takes less heat to get "too hot". The factory ran the line low on the frame, and then over and up, because it's the coolest route in the engine compartment. You should duplicate what they did, and just bring it into the bowl. You can also try using slip on thermal sheild on the line. You'll see that stuff on a bunch of bracket racing cars for that reason too. The main reason it's stalling tho, is most likely the floats are too low. Holleys have to have the float level "just right" or they exhibit strange behaviors. Stalling is one of them. It looks like that Holley does not have exteranlly adjusted floats. What is the list number of it? Also, I've found in CT, if a Holley hasnt been rebuilt in more than 3 years, it needs it. And that's only driving it 6mths of the year...lol.

widing'cuda · « **Reply #10 on:** August 07, 2006 - 10:10:13 AM »

Quote from: moper on August 07, 2006 - 06:37:38 AM

The fule line is routed over the headers..Bad choice. But may not be the main reason. I dont think you hear fuel boiling..that's prob just coolant in the heads. It's common to hear that on a summer day. The intake get's hot, so the block off is a good idea, provided the climate is decent, or you dont drive it when it gets cold out (like below 35�). Those carbs have smaller fuel bowls. Less volume takes less heat to get "too hot". The factory ran the line low on the frame, and then over and up, because it's the coolest route in the engine compartment. You should duplicate what they did, and just bring it into the bowl. You can also try using slip on thermal sheild on the line. You'll see that stuff on a bunch of bracket racing cars for that reason too. The main reason it's stalling tho, is most likely the floats are too low. Holleys have to have the float level "just right" or they exhibit strange behaviors. Stalling is one of them. It looks like that Holley does not have exteranlly adjusted floats. What is the list number of it? Also, I've found in CT, if a Holley hasnt been rebuilt in more than 3 years, it needs it. And that's only driving it 6mths of the year...lol.

The fuel line goes as fare away from the headers/engine as possible. I'll take another picture soon were it's easier to see. i can only hear the fuel bowls boil when I put my ear really close to them. Not from fare away. I'm planing on getting rid of the holley in the long trem. But don't have the money right now. I'm thinking about a Edelbrock 750 cfm. Or is that i bit to large on a 383?

Sadly the Holley is only about a year old. I have adjusted the float level, but that only helped a little bit. The hole car don't shake when it's cold anymore. It has work fine for the previous owner of the 'cuda. I had a 70 Charger with a Holley double pumper 650 from the 80's. Little tursty yes, but it worked great! This was a 383 car as well. But it did have the spacer on though.

So I'm going for the spacer when I get my next pay-check.

As for what tempratur I drive the 'cuda in. It's all from 10�C to 35�C. In the winter the 'cuda will only be fired up now and then, just so it don't sitt 5-6 mounths

crazy larry · « **Reply #11 on:** August 07, 2006 - 03:45:25 PM »

In a pinch Dynamite works. Just kidding I'm having the same problem with my 360 swapped conquest and i've narowed it down to the headers putting of to much heat for the engine compartment. Fix would be ceramic coated headers and EFI. Or Dynamite. Good luck.

widing'cuda · « **Reply #12 on:** August 07, 2006 - 04:04:48 PM »

Thanks!

Hot_Rodder · « **Reply #13 on:** August 07, 2006 - 04:18:07 PM »

A quick tip, providing you have not bought a spacer yet, is to take 4 sockets, 1" in length, sit them on the intake, and put your carb and air cleaner assembly on it, and slowly close the hood, trying to keep an eye on hood clearance as you close the hood, if you can close the hood with out anything hitting, raise it back up, and set another socket on top of the air cleaner, and see if that clears, if it does, chances are, you have plenty of room for a 1", I had to do this with my '69 Charger R/T with 440.... I did the 1" socket on top to try and compensate for engine movement.....

MEK-Dangerfield · « **Reply #14 on:** August 07, 2006 - 04:27:48 PM »

If space between hood and air-filter is tight, they do make 1/2 inch spacers. Really, just getting the carb. off the intake will work wonders.

Mike

Author Topic: Help! Fuel bowls on my Holley are boiling (Read 9852 times)

widing'cuda

Help! Fuel bowls on my Holley are boiling

422STROKER

Re: Help! Fuel bowls on my Holley are boiling

Chryco Psycho

Re: Help! Fuel bowls on my Holley are boiling

widing'cuda

Re: Help! Fuel bowls on my Holley are boiling

422STROKER

Re: Help! Fuel bowls on my Holley are boiling

Chryco Psycho

Re: Help! Fuel bowls on my Holley are boiling

widing'cuda

Re: Help! Fuel bowls on my Holley are boiling

widing'cuda

Re: Help! Fuel bowls on my Holley are boiling

Chryco Psycho

Re: Help! Fuel bowls on my Holley are boiling

moper

Re: Help! Fuel bowls on my Holley are boiling

widing'cuda

Re: Help! Fuel bowls on my Holley are boiling

crazy larry

Re: Help! Fuel bowls on my Holley are boiling

widing'cuda

Re: Help! Fuel bowls on my Holley are boiling

Hot_Rodder

Re: Help! Fuel bowls on my Holley are boiling

MEK-Dangerfield

Re: Help! Fuel bowls on my Holley are boiling