starting problems...
Thread Starter
|
New User
Joined: Apr 2012
Posts: 5
Likes: 0
starting problems...
hey guys, newbie here. ive looked all over this forum but havent found this specific topic. i just bought a 68 f100 with a 390 with an automatic and it needs a little work. it runs and drives but the guy i bought it from said the carb needed to be replaced and you have to find a "sweet spot" when you turn the key to start it. and it seems hes right, the carb is spitting gas and floods very easily. the key works, but as the seller said the "sweet spot" has to be found, you cant just turn the key all the way to crank it. the question i have is what needs to be fixed as far as the starting issue? and would you guys recommend staying with the 2 barrel or switching to a 4 barrel? thanks, any info would help.
Elder User
Joined: Oct 2011
Posts: 795
Likes: 0
hey guys, newbie here. ive looked all over this forum but havent found this specific topic. i just bought a 68 f100 with a 390 with an automatic and it needs a little work. it runs and drives but the guy i bought it from said the carb needed to be replaced and you have to find a "sweet spot" when you turn the key to start it. and it seems hes right, the carb is spitting gas and floods very easily. the key works, but as the seller said the "sweet spot" has to be found, you cant just turn the key all the way to crank it. the question i have is what needs to be fixed as far as the starting issue? and would you guys recommend staying with the 2 barrel or switching to a 4 barrel? thanks, any info would help.
http://shop.advanceautoparts.com/web...RPSESWAMS_____.
http://www.youtube.com/watch?v=RGI66j7D9q4
Whie you are at ytube do a search for more help rebuilting carb, setting float etc.
Elder User
Joined: Oct 2011
Posts: 795
Likes: 0
Once you get those problems fix might be a good time to change gas oil filters check spark plugs and wires also points rotor condenser power steering fluid. Check and replace as necessary. Could save you some headaches down the road or keep you from sitting on the side of it. Oh check batttery connections wires and grounds. There should a ground strap back behind the carb that goes from firerwall to motor. Good tune up and check all fluids. 
Thread Starter
|
New User
Joined: Apr 2012
Posts: 5
Likes: 0
speaking of tuning up the motor, i replaced the points and rotor, but when i did, the truck wouldnt crank. i put the old ones back on it and it started right up. im gonna put pertronix conversion on it when i replace the carb and ignition, maybe that will solve the issues.
Posting Guru
Joined: May 2010
Posts: 1,867
Likes: 3
From: Alton, MO
When you get the carb situation resolved change the oil & filter. If you are dumping fuel there is a good probability you are filling the crankcase with fuel. It's cheap to do & good insurance.
Trending Topics
Elder User
Joined: Oct 2011
Posts: 795
Likes: 0
Pertronix is great did it to mine not too long ago and upgraded the coil. I don't think it will resolve your issue but still a nice upgrade. Do you know what carb you have, motorcrafts are pretty simple to rebuilt and not expensive to do.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
New User
Joined: Apr 2012
Posts: 5
Likes: 0
update: i rebuilt the carb but haven't done the ignition conversion. but the problem i have is when cranking it turns over but then speeds up. i put a new ignition switch in but no change. when i finally do get it running, it runs smooth but if i hit a bump it knocks off, and hard to start again. could it be trying to jump time or maybe a loose ground? thanks.
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
I'm not sure where everyone gets the misinformation about an engine "jumping time" That is something that cannot happen in the distributor unless you didn't tighten it down and if that was the case it would just advance the timing until it didn't run at all. Really worn timing chains might jump a cog and still run (barely), I've only seen that maybe 3-4 times in my 59 years. Do you have the small wire from the starter relay to the coil? All the grounds in place, clean and tight? Maybe try a starter draw test, compression test.
Thread
Thread Starter
Forum
Replies
Last Post
icemansaint
1973 - 1979 F-100 & Larger F-Series Trucks
1
Apr 20, 2015 10:35 AM
Smellii
1967 - 1972 F-100 & Larger F-Series Trucks
5
Dec 28, 2012 05:50 PM
BlueOval390
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
7
Dec 16, 2008 12:15 AM
