Broken engine mounting holes - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 04-16-2012, 01:12 PM   #1
Newb
 
Join Date: Apr 2012
Posts: 8
Angry Broken engine mounting holes

I am a Jeep rookie and just bought a 95 Yj, 4.0L, 5 speed. The passenger side engine mount only has 1 bolt in place. One of the other mounting holes (on the actual block) is chipped enough that a bolt will not hold and the other has a tap broken off inside of it!! It is still driveable but I keep the revs low and the acceleration easy so as not to break the remaining bolts and 4 wheeling is obviously out of the question. I have seen lots of posts with broken bolts but this is the actual hole in the block that the bolts screw into that are a problem. Any ideas on how I can fix this?

Boodage is offline   Quote Quick Reply
Old 04-16-2012, 01:43 PM   #2
Jeeper

WF Supporting Member
 
denisbaldwin's Avatar
 
Join Date: Nov 2011
Location: Clearwater, FL
Posts: 3,300
You're gonna have to either weld it or replace it. I just had to have one of mine welded too because of something similar. Was broken right off at the perch.

__________________
Denis A. Baldwin
Clearwater, FL
1991 YJ 99 Vortec 5.7L, SM465, NP205, 14 Bolt Rear, Dana 60 Front, 5.13 Gears, Detroit Lockers, 395/85R20 46" Michelin XML tires on 20" XD Wheels, Cherokee Offset Springs (10" front to back stretch total), Bilstein 5150s, 1in. BL, custom cage, Warn M8000, Double D Dash/OHC, 4Low Front Stinger Bumper, DirtWorx Rear Bumper WTC, Tube Fenders, Comp Cut, 1 Ton HD Kingpin High Steering and PAID FOR.
denisbaldwin is offline   Quote Quick Reply
Old 04-16-2012, 02:04 PM   #3
Jeeper
 
YJPeteCC's Avatar
 
Join Date: Apr 2012
Location: Twin Cities
Posts: 32
First off on the passenger side of the engine has the oil filter on it. I broke the passenger side engine mount on mine, while on a trail I should not have been on , and it crushed the oil filter. I had no choice, the fine would have been more than the repair, but to continue on. Luckly I was only about a 1000 yards from the bar, so I just pulled into the barn there and left it for the morning. I would not recomend driving it at all if possible. Unfortuantly the correct repair if the engine block is broken is to replace it. Can you post some picture's? Maybe if we can see the dammage we can come up with another idea.
__________________
Airwolf was a cool show.
YJPeteCC is offline   Quote Quick Reply
Old 04-16-2012, 03:07 PM   #4
Jeeper
 
Join Date: Jul 2006
Location: columbus
Posts: 2,156
Send a message via AIM to rebelBullDawg325
pics would help. i wonder if a helicoil would be possible
__________________
91' - 4.0L - 5spd
31" bfg at's
rebelBullDawg325 is offline   Quote Quick Reply
Old 04-16-2012, 05:13 PM   #5
Jeeper
 
busemans's Avatar
 
Join Date: Dec 2010
Location: on the gulf of mexico
Posts: 1,352
the bolts for that mount broke on my wife's 93 a few times. drill the tap out and get some really strong bolts for the two holes you will be able to use.

it sucks when the mount bolts break and the engine drops on to the oil filter. happened to us each time those bolts broke too
__________________
A lot of teenagers are people who express a burning desire to be different be dressing exactly alike.
Panties aren't my favorite, but they're right next to it...
No one is normal, there are just a lot of weird people with things in common.
busemans is offline   Quote Quick Reply
Old 04-17-2012, 09:02 PM   #6
Jeeper

WF Supporting Member
 
Join Date: Apr 2011
Location: Arizona
Posts: 20
S2572-RE, Right 4.0L/4.2L Super Engine Bracket

We have had great success using this as a repair. We sell several of them, each week that are being used to fix the problem you describe.
__________________
Tim Shideler
Brown Dog Offroad
Brown Dog is offline   Quote Quick Reply
Old 04-18-2012, 03:01 PM   #7
Newb
 
Join Date: Apr 2012
Posts: 8
Engine Mounts

Here is a picture of my mounts, they are pretty messed up. One of the holes (the one with the tap) is a write off so I am going to first try to use the existing one and weld the chipped one giving me 2 solid bolt ons. My buddy is a reaaly good welder and I thought I would give it a shot before spending money on the brown dog bracket. Has anyone had a similar situation and used these brackets successfully?

Click image for larger version

Name:	mount.JPG
Views:	105
Size:	115.1 KB
ID:	114907
Boodage is offline   Quote Quick Reply
Old 04-18-2012, 03:44 PM   #8
Jeeper
 
Join Date: Feb 2011
Location: Michigan
Posts: 72
I was going to suggest the brown dog mount, as that's how I fixed my drivers side mount.
__________________
1994 YJ. Lifted...33's...swapped 4.0/aw4
Hghgrad is offline   Quote Quick Reply
Old 04-18-2012, 04:13 PM   #9
Jeeper
 
Jerricho's Avatar
 
Join Date: Oct 2011
Location: Layton UT
Posts: 218
I had a similar problem, I had to drill and tap out the holes to 7/16's.

I was in a similar spot to you (minus the one broken mount), the PO tried to drill one out and broke the drill bit off in the hole(then left it and ran with 2 bolts), so I had to drill through an old bit just like your tap. It took a long time, a few drill bits and REALLY sucked, but I eventually got it.
__________________
If you choose to say "plz" because it is shorter than "please" I choose to say "no" because it is shorter than "yes".
Jerricho is offline   Quote Quick Reply
Old 04-19-2012, 12:51 AM   #10
Jeeper
 
banks316's Avatar
 
Join Date: Apr 2011
Location: Longview, WA
Posts: 2,089
I had the same problem, here is my fix



Welded two peices of 2in flat bar top and bottom of the bracket and drilled holes so I could use other bolt holes on the block. It held together good till I feel asleep and put my jeep in a ditch at 55. I rebroke the mount but only the top leg. I rewelded and drilled to more holes to bolt the top leg.
__________________
93 YJ I6 5spd
My YJ Build +1.5 inch SOA ,37 12.50 15R Swamper M16's, 5.22:1/2.97:1 Stak Tcase with 92 Crawl Ratio--------SOLD...
banks316 is offline   Quote Quick Reply
Old 04-19-2012, 11:12 AM   #11
Newb
 
Join Date: Apr 2012
Posts: 8
Thanks guys, this is all super helpful info. I have now welded the chipped one and have the one normal one in place and I tested it by torquing it pretty good in high and low gears. Seems to be holding out so far. What do you think my chances of survival are? If it breaks again I will get the brown dog bracket. I talked to Tim there the other day and he was extremely helpful.
Boodage is offline   Quote Quick Reply
Old 04-20-2012, 12:15 PM   #12
Jeeper

WF Supporting Member
 
Join Date: Apr 2011
Location: Arizona
Posts: 20
This is an excellent, but long, treatus on welding cast iron (such as an engine block).

Welding Cast Iron | Lincoln Electric
__________________
Tim Shideler
Brown Dog Offroad
Brown Dog is offline   Quote Quick Reply
Old 04-30-2012, 06:22 PM   #13
Newb
 
Join Date: Apr 2012
Posts: 8
OK. As I suspected, the weld did not hold which leaves me with one good bolt attached to the mounting bracket. Before I lose that one, I have gone ahead and ordered the Brown Dog Super Bracket. It is a bit more than I wanted to spend but it will do the job and save me from other more costly expenses in the future. I will update y'all once it is in and I have gone 4 wheelin! S2572-RE, Right 4.0L/4.2L Super Engine Bracket
Boodage is offline   Quote Quick Reply
Old 05-01-2012, 12:01 PM   #14
Jeeper
 
Join Date: Jul 2006
Location: columbus
Posts: 2,156
Send a message via AIM to rebelBullDawg325
sorry the weld didnt hold. but props to brown dog for help. hopefully it all works out for ya

__________________
91' - 4.0L - 5spd
31" bfg at's
rebelBullDawg325 is offline   Quote Quick Reply
Reply

Tags
engine mount holes , engine mounts

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:55 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC