help with vac leaks
Thread Starter
|
New User
Joined: Aug 2007
Posts: 15
Likes: 0
From: north east alabama
help with vac leaks
Hey guys I am probably in the wrong forum, but if I am maybe someone can redirect me. I have 71 f100 that has a 351w. I can't get this thing to run right and am pretty sure it is vacuum leaks causing my issues. Many of my hoses are dry rotted and some even appear to be disconnected. Is there a diagram with some explanation on how to replace and or reroute these lines. Any help would be appreciated. Thanks Jason
Senior User
Joined: Jan 2008
Posts: 457
Likes: 0
From: Burleson,Tx
Vaccum diagram??? just swap in a diesel then there is no need for vaccum lines.... 
Seriously though I dont know of a diagram for it but I would think its pretty simple if you have power brakes there should be large line coming fromthe intake manifold to the power brake booster, there should also be a line coming from under the carb to the vaccum advance on the distributor. I am not exactly sure since its been a while since I have messed with a carbed engine but I believe that is about the only thing you really need to worry about I would just cap everything else off (if there is anything else) and start trouble shooting. I like to kee things simple when trouble shooting if you eliminate all the other not so nessecary lines then it makes it easy to get it runnin right.
Seriously though I dont know of a diagram for it but I would think its pretty simple if you have power brakes there should be large line coming fromthe intake manifold to the power brake booster, there should also be a line coming from under the carb to the vaccum advance on the distributor. I am not exactly sure since its been a while since I have messed with a carbed engine but I believe that is about the only thing you really need to worry about I would just cap everything else off (if there is anything else) and start trouble shooting. I like to kee things simple when trouble shooting if you eliminate all the other not so nessecary lines then it makes it easy to get it runnin right.
Senior User
Joined: Dec 2006
Posts: 119
Likes: 0
vac leak
i capped off everything but the booster & vac advance. if you still have a leak, check the carb base gaskets & spacer. I had a 75 once the spacer had a crack in it & it drove me nuts till i finnally found it.
Thread Starter
|
New User
Joined: Aug 2007
Posts: 15
Likes: 0
From: north east alabama
something is crazy with this old truck. It ran pretty good yesterday after I tweaked around on it. Today, not so good. I am not a mechanic and have just about given up hope on trying to fix it myself.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
This is from a 73 360, it should give you a basic idea how things work
You need to replace those hoses though.
You need to replace those hoses though.
Trending Topics
Senior User
Joined: Dec 2006
Posts: 119
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
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
Thread
Thread Starter
Forum
Replies
Last Post
Jason 88F150
1987 - 1996 F150 & Larger F-Series Trucks
2
Aug 20, 2002 05:28 AM
1964 custom cab
1961 - 1966 F-100 & Larger F-Series Trucks
3
Jan 10, 2001 12:11 PM