Need carb/distributor compatability info

[Anonymous]

Let's see, where do I start?

Ever since I've had my Bronco it's had a 200 with the same carb and distro on it. Never had a problem, fired right up every time. Here's the carb, http://farm3.static.flickr.com/2011/245 ... a8.jpg?v=0. And here's the distro, http://www.flickr.com/photos/17286375@N ... hotostream. I think the distro is a load-o-matic, but not sure. Please identify these if you know what they are.

Well the problem started when I installed a carter yf in place of the existing carb. It would ran fine for a little while, then staring running hot and running badly. It bogs under any load.

So, I think the problem is mixing the LOM with the carter, which won't work due to since it lacks some type of valve.

What do I need to do? Can I just buy a regular points dist. and run it with either carb or does my original carb require the LOM? At this point I'm ready to just buy a DUI and be done with it. To be honest I'm not even sure that will work. Please, give me some insight to get this resolved.

 

[CZLN6]

Howdy BigJ:

YOu have a Load-O-Matic distributor that requires a carb with a Spark Control Valve (SCV) to function as designed. Your Carter YF does not have a SCV.

What year is your rig? What year is the Carter YF that you are using?

Yes, you can upgrade to a '68 and later for a points type distributor with both centrifugal and vacuum advance. It will be compatible with your YF. FoMoCO switched to pointless, electronic ignition beginning in 1973 with the DuraSpark system. The DuraSpark II, with the large cap, followed in '74. All of these are compatible with your YF carb. THe DUI is also a good choice. All will be an improvement over your stock LoM distributor.

Some of the problems you described may be due to ignition, but some sounds like a carburetion problem.

Adios, David

 

[Anonymous]

Howdy BigJ:

YOu have a Load-O-Matic distributor that requires a carb with a Spark Control Valve (SCV) to function as designed. Your Carter YF does not have a SCV.

What year is your rig? What year is the Carter YF that you are using?

Yes, you can upgrade to a '68 and later for a points type distributor with both centrifugal and vacuum advance. It will be compatible with your YF. FoMoCO switched to pointless, electronic ignition beginning in 1973 with the DuraSpark system. The DuraSpark II, with the large cap, followed in '74. All of these are compatible with your YF carb. THe DUI is also a good choice. All will be an improvement over your stock LoM distributor.

Some of the problems you described may be due to ignition, but some sounds like a carburetion problem.

Adios, David

My truck is a '66 but this is not the original motor. I believe this motor is a '73. Will the later style distro work with my existing carb with the scv valve or do I have to use the carter?

I would really like to know what the carb(the one pictured) I currently have is if anyone knows.

 

[kuhlou]

if the carb is an Autolite 1100, the scv valve is on the opposite side of the carb that your picture shows.

 

[Anonymous]

other side
http://farm4.static.flickr.com/3042/245 ... 34.jpg?v=0

 

[CZLN6]

Howdy Back:

The carb is clearly not an Autolite 1100 with a SCV. It appears to be a very late, emmissions engine service replacement carb. A Holley #1940. If it is it was never original on any vehicle. It was a service replacement for Autolite 1100s and for some Carter YFs. I was a generic carb that can be taylored somewhat to fit any Ford six as a service replacement carb. Not much is known about them as few feel they are worth the time and effort.

Some early #1940s came with SCVs. This one does not have a SCV and would not be compatible with your LoM distributor. Given your description, I'd be more suspious of the carb then the distributor.

Adios, David

 

[Anonymous]

So what is the solution, a new distributor? The carb and distro have always worked together in the past. I'm pretty curious to see how well it will run with components that are compatable.

Should I spend they money to upgrade to DS2 instead of a points distro? I'm very tempted to just get a DUI, but there pretty spendy. Does anyone have a parts list of what parts I need for the DS2?

 

[LaGrasta]

My advice, swap out that carb. It's the problem in this equation in my opinion.

Carbs can be as cheap as $99 at the local auto store (Holley 1940) or as much as $399 at ponycarbs.com (Vaporizer).

I would spend another $99 for Pertronix and coil as the results will be astounding compared to points. It's like lighting a match when you first hit the key after the swap. I think after that, it will be reliable and you'll be down-right thrilled with the new "zest" it has.

 

[CZLN6]

Howdy Back:

Your choices are to find a '65 to '67 Autolite 1100 to compliment your L-0-M distributor, then invest in a Petronix Ignitor and matching coil. This gets you back to original appearing- only better! IF you still have your original 1100, rebuild it.

Or-

Purchase a DuraSpark II system and add it to a Carter YF from a 200, from '70 - '79. The best buy on a DSII system is at your local recyle yard. Look for a Fairmont, Granada or the Mercury clones. The system is connected with a factory harness. It is easiest to leave the harness intact and remove each part still hooked to the harness. Parts are the Distributor and plug wires, module, coil. Once removed check the distributor shaft for wobble or side play.

The Carter YF will require adaptation of linkage or converting to a cable system. The cable is the best bet.

This will be your best performance, reliability and economy combo. The ignition will upgrade you to a much stronger spark, add centrifugal advance as well as vacuum, in a set and forget ignition system. The YF is fairly easy to rebuild. It can be done relatively cheaply too.

Keep us posted on what you decide and how it goes.

Adios, David

 

[Anonymous]

Thanks for the repies guys. Funny thing is that I already have a petronix and coil that I have never installed. It's always fired right up with the points so I never wanted to change something that wasn't broke.

I'm not convinced that it's a carb issue since it's now doing the same thing with 2 different carbs. It feels like it's more an ignition issue, but I'm not sure.

I have a carter yf from a 250 that kirkallen gave me. That's when all of this started. It was dieseling some after I installed it. Kirk said he thought I blew the vaccuum diaphram from it doing that. It would not hold vaccum when applied to it either. I have pulled that already but cannot find a replacement. I'm only able to find a whole new distributor.

I'm not so much worried about retaining stock appearance, just reliability. I really don't want to get stuck out on a trail due to something like this.

Thanks for the help again.

 

[LaGrasta]

I hear what you're are saying about it running so well with the points set up and not wanting to ruin a good thing. This was exactly my situation. I was finally convinced to try it. I can't state it enough.
I was totally blown away when I touched the key. It was like I lit a match on a stick of dyno-a-mite. To this day, it is the number one mod that resulted in the biggest result. Never has anything else made such a difference. Even going from drum to power disc wasn't as drastic a difference.

.55 plug gap
40v-60v coil
8mm wires
Pertronix ignitor

readjust idle

Let us know what you decide and how it turns out.

 

[Anonymous]

Well I finally got it all wrapped up. I bought everything to do the DS2 conversion but didn't install it. I installed a regular points dizzy and the pertronix that I already had. Can't really say that it starts or runs any better. But I checked the timing and it does advance under acceleration.

I did find that I had several badly fouled plugs which I think were the cause of the bad miss that I had. It seems to be fouling plugs within less than 100 miles. I looked inside the block when I pulled the plugs and the tops of the pistons are nasty and cruddy. I may try running a bottle of seafoam through the fuel system and some atf in the oil and see if that cleans it up any.

Anyone else have any thoughts or suggestions?