Notices
New Member Forum A place for new members to get their feet wet

Engine installation - gearbox mating challenge

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 05-12-2019, 07:42 AM
  #1  
Registered
Thread Starter
 
thepadol's Avatar
 
Join Date: May 2019
Location: Rome, Italy
Posts: 20
Likes: 0
Received 1 Like on 1 Post
Engine installation - gearbox mating challenge

I've been researching and studying details related to how people remove engines and then re-install. If you don't go the standard Mazda factory process of pulling the entire power unit + frame, then most people are removing engines from the top but it requires unbolting the transmission. There's a bit of work in angling but it's doable. Instead when re-installing the transmission can be a challenge to mate and my assumption is that it depends how the shaft splines are located with respect to clutch disk (assuming it is correctly aligned in the first place). There is very little stated explicitly but the factory workshop calls for a special tool to be inserted to the rear of the transmission (drive shaft has to be removed) and from what I gather this specific SST makes it possible to rotate the main transmission shaft that little bit so that it aligns with the clutch. What most people seem to do is remove the engine mounts while suspending the engine to give it enough wiggle directions to unbolt from the transmission and in this scenario the drive shaft remains attached to the transmission and differential. That being then perhaps rotating the rear wheels by hand could be enough to the same effect as the SST. Thoughts?
Old 05-12-2019, 05:28 PM
  #2  
What am I doing here?
 
NotAPreppie's Avatar
 
Join Date: Mar 2006
Location: 2017 Miata RF Launch Edition
Posts: 3,606
Received 649 Likes on 510 Posts
It actually doesn't require splitting the engine and transmission. You just need to get the front of the car up high enough to allow the tail of the transmission to clear the floor as you angle the whole assembly up and out.
Old 05-13-2019, 02:14 AM
  #3  
Registered
Thread Starter
 
thepadol's Avatar
 
Join Date: May 2019
Location: Rome, Italy
Posts: 20
Likes: 0
Received 1 Like on 1 Post
How high are we talking about? Do you have actual numbers? Would a typical engine hoist/crane also have enough reach at the top?
Old 05-13-2019, 09:31 AM
  #4  
Modulated Moderator
iTrader: (3)
 
dannobre's Avatar
 
Join Date: Feb 2004
Location: Smallville
Posts: 13,718
Received 334 Likes on 289 Posts
I've never had a problem if you have a clutch disc alignment tool that aligns the clutch disc in the pressure plate/flywheel in the correct place.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Strata-R
RX-8 Discussion
75
12-31-2013 02:16 PM
msenzo
Series I Tech Garage
25
07-02-2010 12:17 PM
TomAssBender
RX-8 Discussion
15
07-22-2006 06:02 PM
RX8 XTC
Series I Tech Garage
2
11-06-2004 10:53 AM
flatso
General Automotive
5
10-14-2004 10:07 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Engine installation - gearbox mating challenge



All times are GMT -5. The time now is 06:57 AM.