Motor Mount replacement question - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 11-13-2017, 04:59 PM Thread Starter
 
Join Date: Nov 2017
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Motor Mount replacement question

I am new to the forum. I am having an issue I am unable to solve and wanted to get some input from the experts before I go down the wrong road. I have a 1966 Tempest with a 400 from a 1974 Firebird. Last winter I replaced the 4 speed Muncie with a Tremec 5 speed, hydraulic clutch, new bell housing, flywheel, oil pan, Vintage AC and a couple of other minor tweaks. I SHOULD HAVE replaced the motor mounts at that time but did not. I am having a clearance problem with my centerlink rubbing on the oil pan. I want to correct this problem.

I am planning on replacing the motor mounts now and then add a 1/8 inch shim between the cross member and frame mounts in hope this will solve my clearance issue. Well I removed the long bolt from the motor mounts and removed the bolts that hold the motor mounts to the block. I attached my engine lift and was trying to raise the engine a few inches to remove the old motor mounts and then remove the frame mounts as well. However as I start to lift the engine it is not freely raising and I donít want to force it causing some other problem.

When I raised the engine last winter, I had the tranny and bell housing removed and engine raised easily as I need to raise it to install the new oil pan. I was hoping I do not need to remove the driveshaft, tranny, bell housing just to get the engine up a couple of inches for the motor mount replacement. I have removed the exhaust from the exhaust manifold, loosened the tranny center mount bolts and cannot find anything binding anywhere.

Am I missing something? Do I need to remove the driveshaft, tranny and bell house? I hope not because it was a PITA to get the tranny seated with the new clutch and flywheel.

Any help would be appreciated.

Thanks,
Chris
cthomas11 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 11-13-2017, 07:05 PM
 
PontiacJim's Avatar
 
Join Date: Dec 2012
Location: Gastonia, NC - Born & raised in Connecticut - 31 years
Posts: 3,640
Mentioned: 1 Post(s)
Tagged: 1 Thread(s)
Quoted: 388 Post(s)
Garage
The Tremec is much larger than the factory trans, manual/automatic. My guess is that it is hitting the floor and won't allow you to lift the engine any further.
PontiacJim is offline  
post #3 of 3 (permalink) Old 01-14-2018, 04:34 PM
 
Join Date: Dec 2017
Location: Ashburn Va
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
CThomas11,

I think PontiacJim gave you the answer, but I didn't see a reply from you. When you received the Tremec did you get a template to assist in cutting out part of the floorboard for your Tempest? If you bought it as a kit you should have gotten a template (I am assuming since American Powertrain, Silver Sport and others give you a template and the sheet metal for the patch).

If you are cobbling together all the parts on your own to save a few bucks, good on ya...you are braver than I am.

Noangelbuddy
Noangelbuddy is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions.

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: 1 (0 members and 1 guests)
 
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
motor mount picture anyone? vvalkid 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions. 12 09-08-2019 11:53 AM
motor mount bolt Topkat 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 1 06-21-2014 10:26 AM
Motor Mount Question nraven68 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 4 02-07-2014 05:16 PM
motor mount Topkat 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 4 05-10-2011 06:30 AM
motor mount question pr0zac 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 29 03-31-2010 06:15 PM

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