Go Back   Ford F150 Forum - Community of Ford Truck Fans > Pre-1997 F150 > 1987 - 1996 F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 02-03-2013, 11:49 AM   #1
Senior Member
 
fordka's Avatar
 
Join Date: Nov 2011
Location: boonville ny
Posts: 2,201
Mentioned: 0 Post(s)
Thanks: 1
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
Default Distributor cap

While working on my 88 300 thats going in my 87 i am now at the distributor. What gets replaced in that. The cap or the whole assembly. Is napa brand anygood.
fordka is online now   Reply With Quote
Old 02-03-2013, 12:53 PM   #2
It's a Canadian thing eh!
 
sylver91's Avatar
 
Join Date: Nov 2010
Location: Ontario, living across a hay field
Posts: 6,663
Mentioned: 13 Post(s)
Thanks: 17
Thanked 183 Times in 178 Posts
Feedback Score: 0 reviews
Default

As long as its Brass terminals you should be fine for the cap. As for the assembly, not a whole lot is serviceable in there other then the O-ring at the bottom of the shaft, the rotor under the cap and in some cases the stator assembly. So if all of that works, don't disturb it and just stick with a new cap and rotor.
__________________
96 300ci M5OD 2wd Reg Cab Long Bed 3.31 LS Gears and 8-Track player

A question that sometimes drives me hazy: am I or are the others crazy?
Albert Einstein
sylver91 is offline   Reply With Quote
Old 02-03-2013, 03:55 PM   #3
Senior Member
 
fordka's Avatar
 
Join Date: Nov 2011
Location: boonville ny
Posts: 2,201
Mentioned: 0 Post(s)
Thanks: 1
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
Default

Ok so just a cap and rotor thats all. I did get a new o ring in my gasket kit i got so might as well do that. Whats the reason some people replace the whole thing. Cause my 95 has a whole new unit in that truck. I even got the old one with it in the tool box.
fordka is online now   Reply With Quote
Old 02-03-2013, 07:13 PM   #4
Senior Member
5 Year Member
 
Join Date: Aug 2008
Posts: 541
Mentioned: 0 Post(s)
Thanks: 2
Thanked 23 Times in 23 Posts
Feedback Score: 0 reviews
Default

You would really only replace it if the shaft was really worn out. You can take it apart and put a new oil pump gear and and replace the pickup assembly inside the distributor like i just did, but it's really not worth it. In retrospect I would have better spent my time and effort with a new distributor instead of all the labor to rebuild it. This is a TFI distributor w/the ignition module mounted to the distributor that I am referring to.
__________________
1990 F150 Lariat 300 5 speed 3.55 ls C824's upgrade F250 3 inch leaf upgrade Centerforce II 11in clutch

silence is golden...duct tape is silver!
southernyankey1 is offline   Reply With Quote
Old 02-03-2013, 08:51 PM   #5
Ford Owner
 
Join Date: Aug 2012
Location: Wichita Kansas
Posts: 680
Mentioned: 0 Post(s)
Thanks: 9
Thanked 66 Times in 64 Posts
Feedback Score: 0 reviews
Default

In the old systems, the distributor was connected to the engine cam shaft and the spark was sent to the cylinders by the mechanical rotation of the distributor shaft. The rotor would turn and make contact with the rotor and then the distributor cap plug wires sending a spark through the wires to the spark plugs. With newer systems, this is done electronically where sensors (like crank shaft sensor and cam shaft sensor) tell the computer where the engine is in the operating cycle and then send the message to the distributor to send spark to the proper cylinder. If you want to go way back, you had points in the distributor that made a circuit through the ignition coil. When the points open by the distributor, the current jumped in the coil creating a big spark that traveled into the distributor, through the rotor cap, and then the the spark plug wires in the distributor cap. As I said previously the function of the points is done electronically and we often have individual coils at each plug or withing the distributor to cause the spark to the cylinders at exactly the right time.

The old distributors rarely failed because they were just a shaft that turned in an distributor housing. You routinely changed the distributor cap, rotor, points, and condenser (usually about every 12,000 miles) but never changed the actual distributor. Today, when a distributor fails today, it is the electronics that fail thus necessitating the need to change the distributor.
Frank_Ford is offline   Reply With Quote
Old 02-03-2013, 09:36 PM   #6
It's a Canadian thing eh!
 
sylver91's Avatar
 
Join Date: Nov 2010
Location: Ontario, living across a hay field
Posts: 6,663
Mentioned: 13 Post(s)
Thanks: 17
Thanked 183 Times in 178 Posts
Feedback Score: 0 reviews
Default

Exactly, for most people its not worth taking apart the distributor so they go with a new/reman one. I took mine apart and changed the pickup, but I did have an instructor who had 30+ years with Ford to show me how to do it. Lucky for me the college had boxes of brand new unused parts From ford as display pieces.
__________________
96 300ci M5OD 2wd Reg Cab Long Bed 3.31 LS Gears and 8-Track player

A question that sometimes drives me hazy: am I or are the others crazy?
Albert Einstein
sylver91 is offline   Reply With Quote
Old 02-03-2013, 09:36 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 07:20 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.