1960 F100 223 won't go over 45mph!

Moderator: Mod Squad

Soldwithgold6
New Member
Posts: 2
Joined: Sun Jul 22, 2018 11:29 pm

1960 F100 223 won't go over 45mph!

Post #1 by Soldwithgold6 » Tue Jul 24, 2018 2:41 pm

I have a 60 F100 with a straight 6 223 I bought back in September when it wasn't running, it is now - and it runs great acutally. I have rebuilt the top end, replaced the distributor, plugs and wires, generator, fuel lines, fluids etc...

The problem I am having is - for some reason I can't get it over 45mph. I am thinking it could be the carb, I had a buddy of mine rebuild it, but am not 100% sure it is tuned correctly.

Any thoughts? could this be the reason it is only going 45? Do you think it could be the vacuum? I have it timed right at 10 degrees advanced...

Any thoughts would be a huge help!

Thanks

chero1369
Registered User
Posts: 56
Joined: Tue Dec 01, 2009 9:49 am
Location: slowdeatha,Tx

Re: 1960 F100 223 won't go over 45mph!

Post #2 by chero1369 » Tue Jul 24, 2018 7:40 pm

Really not enough info to work off of.So,what trans,rear end ratio,tire size?
Also,you do know that some trucks were farm trucks and were geared to pull start farm equipment and not go to church back then.
Please remember that it's not a 427 SOHC.

User avatar
bubba22349
Global Moderator
Posts: 8379
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: 1960 F100 223 won't go over 45mph!

Post #3 by bubba22349 » Tue Jul 24, 2018 11:36 pm

Soldwithgold6 wrote:I have a 60 F100 with a straight 6 223 I bought back in September when it wasn't running, it is now - and it runs great acutally. I have rebuilt the top end, replaced the distributor, plugs and wires, generator, fuel lines, fluids etc...

The problem I am having is - for some reason I can't get it over 45mph. I am thinking it could be the carb, I had a buddy of mine rebuild it, but am not 100% sure it is tuned correctly.

Any thoughts? could this be the reason it is only going 45? Do you think it could be the vacuum? I have it timed right at 10 degrees advanced...

Any thoughts would be a huge help!

Thanks


Yes it maybe the carb was it rebuilt to the factory specs? Also there could be issues with the LOD (Load O Matic) Distribitor advance system, the vacuum line hookup for it and or the SCV Spark Control Valve on the carburetor. To learn more how this unique advance system works see the below link. Also for a car / truck that sat unused for a long don't forget to check the fuel system and line from the fuel tank up to carb for blockage, at the tank pickup point, pin holes, or bad rubber fuel lines too. Also the muffler could be clogged up with crap. Good luck on your pickup. : :thumbup: :nod:

The LOD Advance System
ci/Loadomatic.html
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
B RON CO
VIP Member
Posts: 702
Joined: Tue Apr 05, 2016 7:02 pm
Location: Long Island, NY
Contact:

Re: 1960 F100 223 won't go over 45mph!

Post #4 by B RON CO » Wed Jul 25, 2018 2:27 pm

Hi, low fuel pressure and fuel level in the bowl usually causes engine surging at higher RPMs. Also could be the float is set too low. As mentioned, make sure the rubber lines are in good shape. Maybe there is an old filter you haven't found. If you have an air compressor you could GENTLY blow back from the fuel pump into the tank to make sure the line is clear. The old fuel pump test is to remove the line at the carb and see how long it takes to fill a coffee can while a helper cranks it over. Your fuel pump should fill a coffee can in less then 30 seconds
Check out the post on Small block six about a clogged exhaust. Any clogged or crushed exhaust could give the same problem. Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

Who is online

Users browsing this forum: No registered users and 3 guests