vapor lock, boiling fuel

[JohnZepka]

I have an edlebrock carb on my 383 and cannot start it after driving.  If I boiling fuel in the carb or have vapor lock how can I fix it?  I do have an afb 4310s I rebuilt, would swapping carbs help?

[histoy]

I use a 1/2" phenolic spacer between the carb and manifold to stop some of the heat transfer.

[terrible one]

Yeah, there was recently a thread posted by Ron (firefighter3931) I believe that showed a 100 degree, yes 100 degree decrease in temperature at the carb using a phenolic spacer and blocking the heat crossovers. Do you have the heat crossovers blocked off already? Also, there is the option of getting a vapor seperator that came on the 440's that were made specifically to avoid vapor lock. If you look on Ebay there is a seller letting them go for $35 or so.

[JohnZepka]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

[firefighter3931]

Yes, use the phenolic spacer....it works great. Make sure none of your fuel lines are coming into contact with the engine or heater/rad hoses. Wintergrade fuel is especiially prone to vapor lock.   


Ron

[Lifsgrt]

Ron, do you have a good vendor for a 1/2" phenolic spacer you know works well?  Also, are you using the factory vapor separator?  Thanks

[1969chargerrtse]

I have an edlebrock carb on my 383 and cannot start it after driving.  If I boiling fuel in the carb or have vapor lock how can I fix it?  I do have an afb 4310s I rebuilt, would swapping carbs help?

This is great info.  I have the 1/2 spacer and have the same issue, will a 1" spacer fit the stock type carb and air filter with room to close the hood?
How do you block the heat crossovers?

I found that Jegs has the spacers.

and here's the vapor separator.  Ouch.
http://cgi.ebay.com/ebaymotors/OE-Correct-fuel-vapor-seperator-440-Hemi-Mopar_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem250064368208QQitemZ250064368208QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Bill at A&M has them.

[firefighter3931]

Ron, do you have a good vendor for a 1/2" phenolic spacer you know works well?  Also, are you using the factory vapor separator?  Thanks

I'm not using a vapor seperator but they do work well. It never hurts to add one if you're having problems. 

carb spacer : http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2DG1402&N=700+4294925239+4294839063+4294873482+115&autoview=sku




Ron

[Bob]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

[Back N Black]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

I think you need this gasket set up to block the heat cross over.

http://store.summitracing.com/partdetail.asp?part=FPP%2D1215&autoview=sku

[Bob]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

Duhhhh. I removed my EGR valve.   

[Chargerrtforme]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

They warm ther carb quick but as you can see they also fry the thing.  Lots of cars had them.  Some used to use a air tube off the outside of the exhaust mainfold to pull up warm air.

[mopar_nut_440_6]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

I think you need this gasket set up to block the heat cross over.

http://store.summitracing.com/partdetail.asp?part=FPP%2D1215&autoview=sku

These pans did not used to exist, I think, so I used to cut pieces of the old pan and silicone them in place on the new pan. This always worked well for me. It is nice that they are making these as I did not know they existed.

Thanks,

[firefighter3931]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

I think you need this gasket set up to block the heat cross over.

http://store.summitracing.com/partdetail.asp?part=FPP%2D1215&autoview=sku

These pans did not used to exist, I think, so I used to cut pieces of the old pan and silicone them in place on the new pan. This always worked well for me. It is nice that they are making these as I did not know they existed.

Thanks,

Jim, those pans have been around forever...the original 6-pack cars used them from the factory. 

The Felpro 1215 is just a replacement 6-pack valley pan. I've used several over the years....first one i purchased was in the late 70's when i was just a 16 yr old High School kid. Dang, that seems so long ago ! 


Ron

[JohnZepka]

I bought a phenolic spacer but it doesn't fit my intake.  My edelbrock carb has 8 mounting holes 4 inside 4 outside.  My intake uses the inside 4 but the spacer uses the outside 4.  Is the link firefighter3931 the correct application?

[mopar_nut_440_6]

I don't have the heat crossovers blocked,  would it still be to my advantage to use a phenolic spacer anyway?  Would it do the job or is it a crapshoot.

Heat cross over? Is that the item that mounts into the intake manifold just under the accelerator hook up? If it is, I removed mine and put the cover plate over it. What is the exact function of it anyway?
I'm not trying to hijack but I think mine may be doing the same thing.

I think you need this gasket set up to block the heat cross over.

http://store.summitracing.com/partdetail.asp?part=FPP%2D1215&autoview=sku

These pans did not used to exist, I think, so I used to cut pieces of the old pan and silicone them in place on the new pan. This always worked well for me. It is nice that they are making these as I did not know they existed.

Thanks,

Jim, those pans have been around forever...the original 6-pack cars used them from the factory. 

The Felpro 1215 is just a replacement 6-pack valley pan. I've used several over the years....first one i purchased was in the late 70's when i was just a 16 yr old High School kid. Dang, that seems so long ago ! 


Ron

Thanks Ron and everybody,

I wonder how I went so long without stumbling onto them (I feel a little silly  ), although I did know that the 6 pack pan used the two thin paper gaskets, I guess I just never realized the x overs were closed off ? I built my first 440 in 1983 which does seem like a while ago!!   

Cheers,

James

[terrible one]

I bought a phenolic spacer but it doesn't fit my intake.  My edelbrock carb has 8 mounting holes 4 inside 4 outside.  My intake uses the inside 4 but the spacer uses the outside 4.  Is the link firefighter3931 the correct application?

If it's using the outside 4, is there room to where you could drill some holes in the spacer to match the inside ones on the carb?

[JohnZepka]

The shape of it and where the holes are won't let it be drilled without having broken holes.