Go Back   Ford Truck Enthusiasts Forums > Ford Vans and other vehicles > 1968-2013 Full Size Vans
Sign in using an external account
Register Forgot Password?


1968-2013 Full Size Vans Econolines. E150, E250, E350, E450 and E550

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-03-2011, 02:48 AM
eric948470 eric948470 is offline
New User
 
Join Date: Aug 2011
Posts: 6
eric948470 is starting off with a positive reputation.
'91 E350 7.5L gas - How to get to the alternator

Hello everyone,

I have a '91 E350 with 7.5L gas engine which has charging system trouble. Basically the battery doesn't charge when in the van. I still don't know if it's the battery or the alternator or anything else. I'm going to get the battery tested in the next couple of days (I don't have a charger or a tester), but if the battery is OK, I'm going to take the alternator out and get it tested.

I can see the alternator and the belt, but I can't get to it. The air cleaner housing (?) is in the way. My questions are,

1. Is taking the air cleaner housing off the easiest way to get to the alternator?

2. How do I get it off? Get those two small hoses on the front and the two hoses on the right off, then take the lid off, take the filter off and look around for a way to get bottom of the air filter housing off so I can access the belt? I'm a noobynoobynoob and I don't want to break anything .

Here are the images ImageShack(TM) slideshow

3. This is not that important, but I'm just curious. What's that cylinder like thing in the last photo? It's in the front inside under the hood, driver's side.

Here's the image ImageShack(TM) slideshow

Thanks.
Reply With Quote
  #2  
Old 10-03-2011, 07:33 AM
subford's Avatar
subford subford is offline
Post Fiend
 
Join Date: Aug 2005
Location: Easton,Ks
Posts: 16,863
subford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud ofsubford has much to be proud of
3. Is the vacuum reservoir for the emission system (TAB, TAD & EGR solenoids).

Yes you will have to remove the air intake ducts.
__________________
95 F150 302 4R70W EB EX-CAB
94 F53 460 E4OD COACHMEN SANTARA RV
83 F150 Flare Side 351W AOD
77 F250 351M-2V NP 435/4 Speed 4X4
subford@gmail.com
Bill K, Kansas Chapter
Reply With Quote
  #3  
Old 10-04-2011, 09:42 AM
eric948470 eric948470 is offline
New User
 
Join Date: Aug 2011
Posts: 6
eric948470 is starting off with a positive reputation.
Got the battery tested and charged. They said the battery is OK.

Came back, reconnected battery and tried starting. Engine cranked without a problem and started. Did the alternator test again. I don't have a tachometer, so in the description below, judging by sound, 'low rpm' means about twice the idle rpm and 'high rpm' means about three times idle rpm. The voltage kept fluctuating sometimes, and the +/- error accounts for that.

Open circuit voltage before test 12.50 V.

Idle: 12.7 +/- 0.2 V without anything on, 11.4 +/- 0.2 V with headlights and cabin heater on full.

Low rpm: 12.4 +/- 0.5 V without anything on, 11.4 +/- 0.5 V with headlights and cabin heater on full.

High rpm: 12.2 +/- 0.2 V without anything on, 11.4 +/- 0.5 V with headlights and cabin heater on full.

Open circuit voltage after test 12.10 V.


So I disconnected the negative from the battery and started getting the air cleaner housing off. Here are some questions I have.

1. What are these two big hoses going to the right? Because they go in to the engine, I guess they are the engine air intakes? Here are the images. ImageShack(TM) slideshow

2. What are these two smaller hoses at the front? Images here. ImageShack(TM) slideshow

3. There is a small line at the right bottom. What is that? There was something like a square sponge, which I guess is a filter of some sort, where it starts, but it was not rigidly connected to the line. I don't know if I or someone else broke it. Are the square thing and the line supposed to be in two pieces or one? Images here. The line is in the center of the last picture. ImageShack(TM) slideshow

4. There is also a small line at left top. What is that? Here are the images. ImageShack(TM) slideshow

5. And finally there is a big line coming in from the bottom to the left edge of the air filter housing. I guess this is the air intake to the filter? Does this line just go to bottom of the vehicle or is there something before the air filter? Images here ImageShack(TM) slideshow

6. Finally got to the alternator. As far as I can see, there are two belts. There is a tensioner for the other belt, but there isn't one for the belt turning the alternator. How do I get the tension off the belt to get the alternator off? Here are the images. ImageShack(TM) slideshow

I thought I might be able to slip the alternator off without loosening the belt, and started taking the bolts off. But the second bolt seems to be too tight for my socket wrench which is only about 8" long. Maybe it's because of corrosion. Tried WD-40, but didn't work. Trying to find a steel pipe or something that I can use to extend the length of the socket wrench so I can get more leverage.
Reply With Quote
  #4  
Old 10-22-2011, 08:53 PM
eric948470 eric948470 is offline
New User
 
Join Date: Aug 2011
Posts: 6
eric948470 is starting off with a positive reputation.
Replaced alternator, and it works fine now. Thanks.
Reply With Quote
  #5  
Old 01-04-2012, 10:48 PM
vth41 vth41 is offline
New User
 
Join Date: Jan 2012
Posts: 3
vth41 is starting off with a positive reputation.
Hello Eric,
How do you get the alternator off without loosening the belt? Is there a tensioner for the alternator belt? I'm try to take mine off.
Thanks
Viet
Reply With Quote
Old 01-04-2012, 10:48 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Ford Vans and other vehicles > 1968-2013 Full Size Vans

Tags
350, 58, 75, 75l, 91, 97, alternator, charging, club, deisel, e350, electric, ford, gas, replacing, system, v8

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 03:36 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup