Installing Mechanical Fuel Pump on '65 389 - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 10-31-2012, 05:11 PM Thread Starter
 
Join Date: Jul 2005
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Installing Mechanical Fuel Pump on '65 389

I need some helpful tips on installing a new mechanical fuel pump on a 389. Is it all that difficult? I was told there is a 'trick' involved when replacing the new pump such as 'tilting' the pump down before sliding it into the opening. Any helpful info would be appreciated.
deerhaven is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 10-31-2012, 10:27 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,491
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 102 Post(s)
Put a little dab of grease on the arm where it'll rub on the eccentric. Yes, put it in tipped forward a bit and push up to line the holes up. It depends on where the eccentric ended up when the engine shut off. You will be working against the spring tension of the pump arm It's really easy, actually. The real problem is not stripping the threaded holes out in the aluminum timing cover. Clean out the threads with carb cleaner or brakleen, and make sure the bolts have nice clean threads and are in good shape. Tighten snug, but not enough to pinch the gasket in at the bolts, or you will be pulling the threads out of that timing cover. I use just a little gm silicone gasket sealer on the gasket, too. I attach it to the pump and let the gasket set in place for a few minutes so it doesn't slip when I'm installing it.
geeteeohguy is online now  
post #3 of 3 (permalink) Old 10-31-2012, 10:35 PM
 
Join Date: Oct 2012
Location: Texas
Posts: 554
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
fuel pump installation

I also found that if the engine is at #1tdc compression (or a little past), the eccentric is near the lowest point, making it a cinch to install.
gjones is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
BigChris66
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
fuel pump dead boost a pump at fault mike4387 Engine Discussions 0 05-13-2012 01:54 PM
Installing new oil pump. lasoya113 Service, Maintenance and Technical Discussion 0 06-19-2011 03:57 PM
fuel pump Topkat 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 7 02-13-2011 06:39 PM
Stock gas tank to ATl Fuel Cell, Fuel pump,ETC??? cpr Drive train, suspension, alignment and brakes. 1 04-29-2009 09:20 AM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome