Hello fellow Jeepers. I have a friend with a TJ, and the motor mounts on the passenger side have been sheared off, leaving the bolts stuck in the block. I've been doing some research online and it appears that a skilled welder can weld steel to cast iron. So assuming the only the rt side mount is broken, what do you think some options are? Can we grind off the mount on the block and weld a new one on? Should we replace 1, some or all? What brand of mount- is the best worth the price?
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Got a pic? I for one am unclear with what's going on.
I've welded steel to cast iron, and specifically to an engine block (SBC). It is possible to get acceptable results, but it can be very tricky.
I still don't understand why this is necessary--did part of the cast iron boss for the MM break off?holes = cowbell
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Originally posted by randysjeep View PostI had the same thing happen to my friends jeep, same side too... If you use an angle air drill with a cut off short bit you can drill then extract the bolts. get new grade 8 bolts and be good as new.holes = cowbell
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Might look into some Brown dog motor mount plates
http://browndogindustries.com/SU2572...nting-Kit.aspxAn XJ will always cost you less then any girl ever will, and you will always know when the spark is gone.
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Pics
Here's 6 pics I took under the Jeep. Hard to see, but hopefully they help. Thanks for the responses & advice. Hopefully we can get the bolts out of the block the easy way. Time will tell.
http://i2.photobucket.com/albums/y1/...n/Photo059.jpg
http://i2.photobucket.com/albums/y1/...n/Photo058.jpg
http://i2.photobucket.com/albums/y1/...n/Photo057.jpg
http://i2.photobucket.com/albums/y1/...n/Photo056.jpg
http://i2.photobucket.com/albums/y1/...n/Photo055.jpg
http://i2.photobucket.com/albums/y1/...n/Photo054.jpgLast edited by Mellow Yellow; 08-16-12, 10:11 AM.[COLOR=DarkGreen]Chris :beer:
Poison Spyder Custom, it's a beast!![/COLOR]
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Originally posted by Mellow Yellow View PostHere's 6 pics I took under the Jeep. Hard to see, but hopefully they help. Thanks for the responses & advice. Hopefully we can get the bolts out of the block the easy way. Time will tell.
http://i2.photobucket.com/albums/y1/...n/Photo059.jpg
http://i2.photobucket.com/albums/y1/...n/Photo058.jpg
http://i2.photobucket.com/albums/y1/...n/Photo057.jpg
http://i2.photobucket.com/albums/y1/...n/Photo056.jpg
http://i2.photobucket.com/albums/y1/...n/Photo055.jpg
http://i2.photobucket.com/albums/y1/...n/Photo054.jpg[CENTER][COLOR=#ff0000]Resistance Off Road
[/COLOR]Join the Resistance...
http://www.resistanceoffroad.us[/CENTER]
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Originally posted by 2blk2drs View PostMight look into some Brown dog motor mount plates
http://browndogindustries.com/SU2572...nting-Kit.aspx
EDIT: Except I just noticed they still use the existing mount bosses on the block. Still, easier to mod than you might think.[CENTER][COLOR=#ff0000]Resistance Off Road
[/COLOR]Join the Resistance...
http://www.resistanceoffroad.us[/CENTER]
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Originally posted by Mellow Yellow View PostHere's 6 pics I took under the Jeep. Hard to see, but hopefully they help. Thanks for the responses & advice. Hopefully we can get the bolts out of the block the easy way. Time will tell.
I've done a substantially similar, if slightly more difficult repair on a small-block Chevy motor--boss for the outer starter bolt was busted off. The original boss was lost by the previous owner so I fabricated a new one out of a coupling nut that I ground down lengthwise. Making the bung/boss and locating it precisely were what made it more difficult than your friend's. The welding rod I used runs close to $20 a stick, but you can't just buy a stick. I also used a special hi-temp brazing rod for good measure.
RAT/ Kurt asked a good question--how the heck did he do that? I strongly suspect that his tranny/ t-case mount is shot too. It's just as important to find and correct the reason it broke as it is to do the best possible fix on that block.holes = cowbell
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That's great advice Invert'd, thank you!! If you're willing, I may have the vehicle owner contact you to work on it, and you can negotiate your own price. They told me the Jeep was hit by a drunk driver while parked on the street and that's what knocked the engine loose. Tranny mounts should be inspected also. Thanks again.[COLOR=DarkGreen]Chris :beer:
Poison Spyder Custom, it's a beast!![/COLOR]
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For starters the engine mount bolts have been loose for awhile other than that I would make a plate that reaches to some other bosses on the side of the engine and go from there. Welding it and not adding additional strength will not be the long term answer. Those bolts are known to break as it is.
The shiny spot shows that things have been moving around for awhile
http://i2.photobucket.com/albums/y1/...n/Photo054.jpg
I am just a simpleton, but this would be my fix, would use these mounting points make an adapter plate and cruise down the road with that darling
Last edited by aw12345; 08-16-12, 07:24 PM.
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Originally posted by aw12345 View PostFor starters the engine mount bolts have been loose for awhile other than that I would make a plate that reaches to some other bosses on the side of the engine and go from there. Welding it and not adding additional strength will not be the long term answer. Those bolts are known to break as it is.
The shiny spot shows that things have been moving around for awhile
I am just a simpleton, but this would be my fix, would use these mounting points make an adapter plate and cruise down the road with that darling
Originally posted by Mellow Yellow View PostThat's great advice Invert'd, thank you!! If you're willing, I may have the vehicle owner contact you to work on it, and you can negotiate your own price. They told me the Jeep was hit by a drunk driver while parked on the street and that's what knocked the engine loose. Tranny mounts should be inspected also. Thanks again.
How much damage was done to the rest of the Jeep?holes = cowbell
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