Broken motor mount

[onlyoneromeo]

Motor mount bolts broken. Can this be saved?

 

[onlyoneromeo]

ok, its not pretty by any means but i got the bolts drilled out. a lil crooked and nowhere near straight but they are out. now what kind of bolts can i put back in these holes? anyone know what thread the original ones are ? one hole i have has the original threads so i would like to get the appropriate bolt for that . the other two that i drilled out are threadless. im thinking of putting a lockbolt on the bottom and top of those two but i need to know what kind of bolts i should be using.

also i called autozone and they dont stock the ones for our car (bolts) im looking at the old ones that snapped and they look like double threaded bolts that go in the bottom of the mount and have threads on both sided. anyone know where i can get these?

 

[Cdc1221]

If nothing else, drill out the holes to a bigger size, straight as you can get them, and use a longer, standard bolt with a nut and lock washer on the bottom. Like if its 16mm, drill it to 5/8 and use a 5/8 11 bolt an inch longer than stock. Though i think a 1/2 13 will be sufficient

 

[schalk35]

Any luck with taking the bolt out? All of us dsmer's have our own way of removing broken bolts.

 

[bryanwheat]

ok, its not pretty by any means but i got the bolts drilled out. a lil crooked and nowhere near straight but they are out. now what kind of bolts can i put back in these holes? anyone know what thread the original ones are ? one hole i have has the original threads so i would like to get the appropriate bolt for that . the other two that i drilled out are threadless. im thinking of putting a lockbolt on the bottom and top of those two but i need to know what kind of bolts i should be using.

also i called autozone and they dont stock the ones for our car (bolts) im looking at the old ones that snapped and they look like double threaded bolts that go in the bottom of the mount and have threads on both sided. anyone know where i can get these?

The studs are MD184155, and the bolt is, MB309043 . Either go to a Mitsubishi dealership, Chrysler dealership or to an online vendor that sells Mitsubishi parts.

 

[92AWDHX40]

I would try extreme psi, stm, or jnz tuning all of these should be able to get oem parts, or pm me i have some connections.

 

[onlyoneromeo]

i think im going to go with putting in longer bolts for the two holes i drilled out. i kiind of have to because if i even tried to rethread them its going to come out crooked. the challenge is going to be the hole closest to the firewall becuase getting a nut to go underneath the platform to connect to a bolt is gonna be challenging.
im probably going to home depot at some point to get some bolts. which ones shoiuld i get? by that i mean of what material /grade should the bolt be?

and anyone know what thread the original holes are? im going to save the one thats still has threads in it and try to put in a bolt that fits properly

 

[Cdc1221]

id like to say grade 8. at least then you wont have to worry about this again. theyre hard enough that they shouldnt crossthread easily. if anything, one might snap, and then youre just out the cost of the bolt. plus i dont think theyre prone to stretching. im not really sure on the size. if i was in my car i could gauge it for you but my babys at the house with a spun rod bearing. hopefully putting the head on my short block this weekend though!

 

[onlyoneromeo]

oh man good luck with that. after this ordeal this car will probably be up for sale or trade. u want a gst spyder?

 

[Cdc1221]

btw, if your exhaust mani is cracked, pm me. ill send you one if you pay shipping on it. ive got two i cant give away

and no im still paying for this one