1st post!

I was wondering if someone could help me locate a home for this magic bolt.

Picked up an 05 EVO 8 of a good friend. The car was out of commission for a rebuild for about 2 years. I found this bolt on the floor of my trailer after getting the car running and tuned. It looks really similar to the motor mount bolt on the pass side of the engine compartment, but that's obviously there.

The car sits fine. I haven't driven it yet (no plate) and to be honest, i don't want to hit the streets and find out that bolt was really important. Or the bolt might not even belong on the vehicle. 2 years can mean a lot of misplaced bolts that might have been replaced with another when it wasn't located, rattled from it's hiding spot on the dyno.

Please chime in if you think you may know where this bolt may go on the car.

 

Did you check all the motor mounts?

 

Looks a lot like the center bolt for one of your roll stop mounts.

 

Looks very similar to the cross member bolt that connects to the bottom of the radiator support.

 

what size is the bolt head, meaning what metric socket fits the bolt?

 

Ill play...check all the bolts that attach the front and rear subframes. It also looks very similar to the vertical bolt that attaches the front LCA.

 

Lift the hood, shake the radiator (at the base) check the lower left fwd assy for empty screw holes. Check the area near the alternator. Start the car and yank the throttle cable. Look for excess surge on the engine. If it leans, it's a mount. If not, pay a mechanic. I assume it's safe to start the car for a min if you already pulled on a dyno. Good luck.

 

Motor mounts are good. The front and rear are smaller than the sides.

Subframe is what I'm thinking too. Anyone have a blown out diagram that includes the fasteners?

Once i got some time I can get underneath and look around.

 

starter mounting bolt?

 

power steering bracket

 

grade 8 - about 5" long.

 

If the head of the bolt is a 19mm socket it looks like one of the bolts that either holds the lca to the frame from the front horizontally or vertically up through the lca to subframe.

 

Yeah I too think it looks very similar to the vertical bolt that attached the front LCA. I just find it hard to believe that bolt would be missing.

 

If that has a 17 mm head on it then it could be a t case bolt. From underneath you can see the lower bolts that hold the t-case to the trans, if you reach up to the top of the case there are 2 long 17mm head bolts that look just like that. I just had my trans out the other day and that looks just like it

 

It's a 17mm bolt

It's not the LCA bolt. Not subframe or motor mounts.

Checking t case now