HELP! Engine Swap - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 06-15-2009, 09:53 AM
n00b
 
Join Date: Jun 2009
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tkmw is on a distinguished road
(Thread Starter)
HELP! Engine Swap

I am swapping a manual transmission motor into an auto transmission car. Motor will not connect to the bell housing. Stays about a 1/2 inch away from the bell housing. Will not mesh together. Is the crank shaft pilot bearing a different size for the auto than the manual? Cannot determine this without pulling it back out of the car. Must I just go ahead with this fate or just keep wiggling and pulling and shaking to get it in. Appreciate any help.
tkmw is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 06-15-2009, 11:30 AM
Help from over the pond
 
marti5's Avatar
 
Join Date: Sep 2008
Location: IPSWICH. U.K.
Posts: 3,242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
marti5 is on a distinguished road
If its only 1/2 away, I would say its just tight going over the line up dowels as they are just over 1/2 inch, I would put some of the studs/bolts in and pull it together.

This is what I had to do when I replaced my box.

VELVET BLUE UK INDIVIDUAL , IM THE LAST
UNITED WE STAND DIVIDED WE FALL

I stepped in a plate of Pasta the other day - now I have to worry about my Carbonara footprint!
marti5 is offline  
#3 (permalink) Old 06-15-2009, 12:52 PM
1st Gear Member
 
romeomike's Avatar
 
Join Date: Mar 2009
Location: Las Vegas
Posts: 125
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
romeomike is on a distinguished road
See if this thread helps

Different forum, but same issue with a happy ending:

WTF is the trick to mate the motor to the tranny? - Bimmerforums - The Ultimate BMW Forum
romeomike is offline  
#4 (permalink) Old 06-15-2009, 05:06 PM
n00b
 
Join Date: Jun 2009
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tkmw is on a distinguished road
(Thread Starter)
Clarification of problem

I quess my question is I have a M20 motor that came out of a straight shift car. I am putting the motor in a car with an automatic. I replaced the fly wheel and clutch disk with the flex plate and torq converter for the automatic. I did not think to check the pilot bushing size. Are they different sizes depending on whether they are a straight shift or automatic?
tkmw is offline  
#5 (permalink) Old 06-15-2009, 07:14 PM
2nd Gear Member
 
Join Date: Oct 2008
Posts: 493
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
silversled can only hope to improve
all I know is I did the same thing with an automatic 76 2002, swapped the engine into a 4 speed 76 2002. Needed a different flywheel and think that was it....on the 2002...I don't recall drive shaft, motor mount, electrical stuff being needed, just the flywheel assembly. Anyway, good luck
silversled is offline  
#6 (permalink) Old 06-15-2009, 07:29 PM
2nd Gear Member
 
Join Date: Oct 2008
Posts: 493
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
silversled can only hope to improve
the only think I can think of is that you might need to re pre-load your driveshaft center bearing, that might give you the clearance....best
silversled is offline  
#7 (permalink) Old 06-15-2009, 10:15 PM
n00b
 
Join Date: Jun 2009
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tkmw is on a distinguished road
(Thread Starter)
Problem Found

Had to remove Pilot ball bearing from crank shaft for the torque converter to fit inside the crank. The automatic does not need the ball bearing. Repulled motor, removed ball bearing, micked crank shaft from original motor = same diameter without ball bearing on the new motor. Put motor back in and everything matched up and bolted together. Time lapse = 3 hours but it is in. Now for the odds and ends. Thanks for all the help. Hopefully this might help someone else later
tkmw is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

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
v6 to v8 engine swap?? 1995bm5w 5-Series (E12,E28, E34, E39, E60) 2 07-02-2008 12:56 PM
Engine Swap seattlekid 3-Series (E21, E30) 2 08-30-2005 12:27 PM
Engine Swap? jer Bimmer Talk/Motorsports Talk 5 03-23-2005 10:05 PM
Engine Swap roundel325is 3-Series (E21, E30) 5 01-04-2005 07:25 PM
Engine Swap bimsupreme 3-Series (E21, E30) 2 11-16-2004 11:54 AM

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 On
Pingbacks are On
Refbacks are On

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