HELP ... Trouble With The Carb

[Anonymous]

I have a 1966 Ford Mustang (my baby) but unfortunately I have not been able to trive her due to the aged carberator ... I need help ... the previous owner swappedthe AUtolite 1100 with a Holley 1947 ... I have had people say that it need to be replaced or rebuilt ... the problem is that when I press down the gas pedal it will imediately stutter and sometimes shut off ... it's not only frustrating but dangerous. I need help to fix this .. if ANYONE has any suggestions or has had the same problem please help me ... I need to get her back runnin strong ... thank you very much ...

Thomas

 

[CZLN6]

Howdy Thomas:

I don't know of a Holley #1947, but Holley produces a #1940 as a, one-size-fits-all, to replace the no longer produced, correct Autolite #1100 that your '66 Mustang came with. THe Holley #1940 was a poor replacement.

It should not be confused with the later #1946 used on the '80s 200, but these have no Spark Control Valve and will not be compatible with your stock, OEM Load-a-Matic distributor.

If your current carb is not compatible with your ignition you will have more than just carb problems.

Your solution is to get a carb that is compatible with your ignition system and that is working properly. Or to upgrade your ignition system to a '68 or later non-Load-a-Matic distributor system and match it to the correct carb with a ported vacuum source for the distributor.

Merry Christmas.

Adios, David

 

[pedal2themetal45]

HI
Maybe its the accelator pump.. Look down the carb and move the linkage and see if there is a spuart of gas going in (motor off). If not replace the accelator pump.
tim

 

[Anonymous]

Your solution is to get a carb that is compatible with your ignition system and that is working properly. Or to upgrade your ignition system to a '68 or later non-Load-a-Matic distributor system and match it to the correct carb with a ported vacuum source for the distributor.



Without proper spark advance all else is like the old pi$$ing in the wind syndrome.

 

[jamyers]

The "Old Car Manual Project" has a master list of old Holley's, and they don't show a #1947. Got any other numbers off the carb body or maybe a tag?
http://www.tocmp.com/manuals/Carbs/Holley/MasterList/index.html

If that carb doesn't have the SCV (looks like a modern Holley power valve screwed into the carb body somewhere), you aren't getting the right vacuum advance to your distributor.

 

[Anonymous]

Here are some numbers I found on the carb ... mabey it will help someone to identify my carb ...

34R-5008B

80220-1049

6R
3806 <- (was circled)
B


Thanks
Thomas

 

[Anonymous]

Thats me ... I signed in the wrong ID ... thanks ...

 

[jamyers]

I can't find anything online referencing those numbers, the closest I come is a carb for a 350hp/327 Corvette engine...not.

Got a picture?

Probably ought to pull the carb and take it to a good parts store and have them reference the numbers.

 

[Anonymous]

http://pg.photos.yahoo.com/ph/southernc ... /my_photos

not very good but there are a couple ...

Thomas

 

[Anonymous]

http://cgi.ebay.com/ebaymotors/Holley-6 ... dZViewItem
think this might be mine ... your right was a 1940 .. cheap ...

http://cgi.ebay.com/ebaymotors/Carter-1 ... dZViewItem would something like this work .. or do you know any suggestions on a new two barrel carb with an adapter plate ... let me know ..

Thanks

Thomas

 

[CZLN6]

Howdy Back Thomas:

The Carter YF will not work with your Stock OEM Load-a-Matic distributor. Read the stickies at the top of this forum. The carb you need to be compatible with your L-a-M distributor has to have a Spark Control Valve (SCV).

If you want to upgrade to a '68 and later Distributor then the Carter YF would be a good choice. You would still have to adapt for the linkage. The '77 YF used a cable throttle linkage in OEM application.

Merry Christmas

Adios, David

 

[LaGrasta]

I just went through this with mine. It was difficult to figure out what carb I had. That carb from ebay is a 1946. My carb is a 1940, "the never factory installed carb, but aftermarket only replacement carb".
My 1940 works great, no problems although not great mpg (high teens). I just replaced the accelrator pump and now all is well again. The later 1946 is the same, but it has some smog stuff on it from what I gathered.

 

[LaGrasta]

I just looked at your pics, I believe you have a 1946.

 

[Anonymous]

yeah my 1946 has high teens too

no vacuum advance

 

[Anonymous]

So how to fix ???

 

[Anonymous]

i have an 1100 I am putting on

OR get a 2bbl. the primary is smaller and you only burn lots of gas when you jump on it


or maybe you can re-jet the 1946....too much trouble in my opinion

 

[jamyers]

If money's tight, I'd get a rebuild kit and see how it goes with yours (it has the SCV provision, right?)

Otherwise, I'd get an 1000 and go back to stock, unless you want to go the 2-bbl route. http://carburetorexchange.com/db/php/se ... del_id=239 has them for under $200.