Difference in YF carbs
Thread Starter
|
Senior User
Joined: May 2004
Posts: 184
Likes: 0
From: Montana
Difference in YF carbs
I have an '86 with the 1 bbl carb. Is there any difference in any of the different model number carbs? Is there a "better' or "worse" one of the bunch? I am bored, wondering if there is anything I can tweak on the 1 bbl.
I'll have the Roast Duck
Joined: Jul 2002
Posts: 9,622
Likes: 108
From: Northshore, MN
Guess so. My 78 carb has no external solenoids or anything. I have a manual choke, and only one vacuum line from the dist. which is even stamped DIST on it. did a rebuild kit, and after taking it apart, I realized how simple this one was. I have no doubts about it firing up in any weather. my 86 was tempermental with hotter weather. I have a chrome 6 inch air cleaner on it too(from p.a.w.). anything that goes wrong can actually be fixed on the roadside, which is nice.
Thread Starter
|
Senior User
Joined: May 2004
Posts: 184
Likes: 0
From: Montana
Which is why I ditched my 2000 Powerstroke for this:
http://2005photos.milneweb.com/truck/8601.jpg.html
http://2005photos.milneweb.com/truck/8601.jpg.html
Elder User
Joined: Oct 2004
Posts: 556
Likes: 0
From: Ridgeway, Virginia
I ordered a YF for a 68 model with manual choke to replace the troublesome Autolite 1100 on my 65. I absolutely love the Carter. Simple, reliable, direct bolt on. It was like I bought a whole different truck. It really made that much difference!
The original question was concerning any difference between various models. One difference I know is that the mounting flange is smaller on the older model carbs. The bolt spacing is closer on the 60's models 240/300 intake manifold. Maybe early 70's too, not sure. So basically if you have a later model 300 you may not want to go back too far in search of a good carb because it wont bolt on without modification.
The original question was concerning any difference between various models. One difference I know is that the mounting flange is smaller on the older model carbs. The bolt spacing is closer on the 60's models 240/300 intake manifold. Maybe early 70's too, not sure. So basically if you have a later model 300 you may not want to go back too far in search of a good carb because it wont bolt on without modification.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
There are a number of YF variations. The Ford variants are the YF and YFA primarily. The YFA is much shorter than the YF. The YFA is the emission version. Bolt spacing, the small engine 200,250 and 4 cyl versions have a smaller base than the 240-300 ones. I can dig and get more information if you need it.
Trending Topics
Thread Starter
|
Senior User
Joined: May 2004
Posts: 184
Likes: 0
From: Montana
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Senior User
Joined: Oct 2005
Posts: 146
Likes: 2
From: Wichita Falls TX
YF Carb
There was also a bolt spacing difference on the cars too.
I tried to bolt a 1976 YFA from a 250 onto a 1972 200
and the 76 YFA had a bigger flange. I like the YF series.
The accelerator pump can be replaced just by taking the
top off and the mixture is easy to adjust with the screw
attached to it ( the needle is spring loaded). Very basic,
but that makes them immune to ills beyond the capacity
of the average mechanic to fix (cheaply!).
I tried to bolt a 1976 YFA from a 250 onto a 1972 200
and the 76 YFA had a bigger flange. I like the YF series.
The accelerator pump can be replaced just by taking the
top off and the mixture is easy to adjust with the screw
attached to it ( the needle is spring loaded). Very basic,
but that makes them immune to ills beyond the capacity
of the average mechanic to fix (cheaply!).
Thread
Thread Starter
Forum
Replies
Last Post
76ClydeF100
1973 - 1979 F-100 & Larger F-Series Trucks
1
Apr 3, 2014 10:26 AM
bluemustang
1973 - 1979 F-100 & Larger F-Series Trucks
4
Jan 8, 2003 04:09 PM
