|
|
|
Mounting a CJ3A eng in a CJ2A Frame |
Post Reply 
|
| Author | |
DocHill 
Member 
Joined: 15 July 2018 Location: Carlock, Ill Status: Offline Points: 6 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Mounting a CJ3A eng in a CJ2A FramePosted: 15 July 2018 at 8:01pm |
|
I rebuilt my engine using a 3A front Plate but my frame is a 2A. The driver's side motor mount is front facing on the 3A plate and seems to be a bit wider than the original CJ2A.
Has anybody figured this out yet???? DocHill |
|
 |
|
|
mbullism
Member
Sponsor Member x 4 Joined: 29 May 2015 Location: MA Status: Online Points: 4460 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 July 2018 at 8:18pm |
|
Numerous times
 There do exist motor mount adapters... no idea how rare, but the next step is either fab or 2a plate Edited by mbullism - 15 July 2018 at 8:23pm |
|
|
1946 CJ2A #69750 - "Plowshare"
Bantam T3-C #8502 Bantam T3-C #9704 Bantam T3-C #15849 1969 Kaiser CJ5 (sold) If you have an L134, ESN on or about J71297, we should talk :) |
|
|
|
|
DocHill
Member
Joined: 15 July 2018 Location: Carlock, Ill Status: Offline Points: 6 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 July 2018 at 8:48pm |
|
I Have a full shop. I was just hoping someone had done this. The two options at this time are adding a extension to the motor mount on the frame or adding a tab to the back of the front plate making it have a mounting tab on both the front and the back of the front plate. I guess I could cut the front facing tab off if all seems well with the back facing tab.
Thanks Doc
|
|
|
|
|
mbullism
Member
Sponsor Member x 4 Joined: 29 May 2015 Location: MA Status: Online Points: 4460 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 July 2018 at 9:03pm |
|
If you do an "advanced search" here you likely can track down pics of the adapters or what others have done in the past...
That said, 2a plates are not hard to track down, and pretty easy to swap out. (and welcome to the2apage  )MB
|
|
|
1946 CJ2A #69750 - "Plowshare"
Bantam T3-C #8502 Bantam T3-C #9704 Bantam T3-C #15849 1969 Kaiser CJ5 (sold) If you have an L134, ESN on or about J71297, we should talk :) |
|
|
|
|
Ol' Unreliable
Member
Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4203 |
Post Options
Thanks(1)
Quote Reply
Posted: 16 July 2018 at 1:54am |
|
Welcome to the page, DocHill!
|
|
|
There's a reason it's called Ol' Unreliable
|
|
|
|
|
Lee MN
Member
Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4451 |
Post Options
Thanks(0)
Quote Reply
Posted: 16 July 2018 at 2:02am |
|
Why not just swap th front plate for the correct one!
 Lee 
|
|
|
LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
|
|
|
|
athawk11
Member
Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4103 |
Post Options
Thanks(1)
Quote Reply
Posted: 16 July 2018 at 4:26am |
|
This is the official adapter. It was only designed to install a CJ2A, MB, GPW engine in a 3A style frame. It does not work when installing a 3A engine on a 2A frame. The spacing is wrong.
I'm with the others that suggested you get the correct front engine plate. I think you'll be happier in the long run.
Edited by athawk11 - 16 July 2018 at 4:28am |
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
|
|
|
Joe DeYoung
Member
Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3300 |
Post Options
Thanks(0)
Quote Reply
Posted: 16 July 2018 at 8:40pm |
|
Definitely put on the correct front plate and save yourself a lot of trouble.
|
|
|
Joe DeYoung
to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife. |
|
|
|
|
Stev
Member
Sponsor Member Joined: 27 July 2016 Location: Cincinnati Status: Offline Points: 2357 |
Post Options
Thanks(1)
Quote Reply
Posted: 16 July 2018 at 8:48pm |
|
DocHill,
Welcome to the CJ2A page! I would recommend as others have -Change to correct front plate. Get it done. It is not that big of a job and the jeep will be "correct". Do you need a 2A front plate or did you just put the wrong one on? I am sure you can get one from Harry Sheets used in Crawfordsville, Indiana or from someone on the CJ2A page. Again, welcome!
Edited by Stev - 16 July 2018 at 8:50pm |
|
|
Stev
1946 CJ2A Trail Jeep (The Saint), 1948 CJ2A Lefty Restored |
|
|
|
|
Dancoul
Member
Joined: 04 May 2010 Location: Rimouski, CND Status: Offline Points: 4 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 July 2018 at 3:03am |
|
This is a picture of my 3A engine mounting plate (original) put on my 2A frame. This engine comes from one of the first 3A of 1949 (serial 10547)
|
|
|
|
|
Dancoul
Member
Joined: 04 May 2010 Location: Rimouski, CND Status: Offline Points: 4 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 July 2018 at 3:13am |
|
Second picture. Maybe this can help.
|
|
|
|
|
DocHill
Member
Joined: 15 July 2018 Location: Carlock, Ill Status: Offline Points: 6 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 July 2018 at 9:10pm |
|
That is exactly what I made yesterday afternoon. I will probably try to find a 2A front plate for sometime in the future, but taking off a fiber cam gear is iffy at best. I took my 2A apart in 1968 and sold the engine when Uncle Sugar told me he had made career plans for me for the next couple years. I really want to get to drive it in the next few years. Thanks for the response.
DocHill
|
|
|
|
|
athawk11
Member
Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4103 |
Post Options
Thanks(0)
Quote Reply
Posted: 19 July 2018 at 9:07pm |
|
I can't say for sure that your plan won't work because I have never tried it. I do know that the 3A motor mounting plate attached to the frame is different than the plate mounted to the 2A frame, both in angle and of course, position. This can be demonstrated by the photo shown in this link below. The bottom right corner is a 3A plate. It reaches out much further than the others pictured. If you leave the modified 3A plate on and install the engine on a 2A frame, I think the engine is going to sit crooked. Again, I might be wrong. I've never tried it.
Edited by athawk11 - 19 July 2018 at 9:09pm |
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
|
|
|
athawk11
Member
Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4103 |
Post Options
Thanks(0)
Quote Reply
Posted: 19 July 2018 at 9:27pm |
|
Also, I'm not convinced that the photos posted by Dancoul are showing a 3A plate that was modified to fit a 2A frame. It appears to be a 2A plate with an extra flange mounted on the front side. Perhaps the prior owner tried to do the reverse of what you're doing, but found out it wasn't going to work.
|
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
|
|
|
Lee MN
Member
Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4451 |
Post Options
Thanks(0)
Quote Reply
Posted: 20 July 2018 at 2:55am |
X2, I agree with Tim. I have spent some time looking at 2A/3A engine mounts, simply welding an ear to the rear of a 3A front plate may work, but the actual 3A front plate is higher than an actual 2A plate due to the curvature of the frame ahead of where a 2A frame mount is positioned. Were it me I would set the engine in the frame and level the engine right to left, and fab up the bracket and tack it in place by welding, then double check and permanently weld into place. Lee BTW, I may have a spare 2A front plate if you would like to do it correctly! Edited by Lee (MN) - 20 July 2018 at 2:57am |
|
|
LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
|
|
|
|
DocHill
Member
Joined: 15 July 2018 Location: Carlock, Ill Status: Offline Points: 6 |
Post Options
Thanks(0)
Quote Reply
Posted: 20 July 2018 at 12:44pm |
|
That is my plan. I have the tab cut but have not yet welded it in. I am waiting on a couple parts for the front shackles and am using my engine lift to hold the frame in the air so I can't set the engine/transmission in the frame for a fitting. When I do that I will make sure it is straight and level.
I am also still trying to locate aan original 2A front plate. Thanks DocHill
|
|
|
|
|
Post Reply
|
|
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
athawk11 wrote: