Help ! Where does this bolt go ?

[JohnW63]

I hate to admit this, but...I have taking too long putting the intake and all the stuff back on my 95 SHO and I have forgotten where 1 bolt goes ! (sigh).

I pretty sure it's from the back side of the motor, because it wasn't clean. It is a 13mm head, with a taper tip with no threads at the end. The threads are too big to be one of the lower bolts for the brackets that support the intake. It has the same thread as the shorter bolt which holds the wire loom bracket and heater hose to the drivers side of the head. I'm thinking it goes at the opposite end, back where the ground connects. Somewhere. But I can only find the hole for the intake support. That bolt is the double thread one.

Any ideas ?

I don't want to go any further, for fear I'll have to disassemble a LOT once I find where it goes.

 

[92ShoOff]

Any chances of getting a picture of this bolt? I had my motor apart and built it up for a year recently so I've touched EVERY bolt on this motor. I don't recall which bolt this is based on your description but if I see it I'll probably be able to tell you exactly where it goes.

-Andrew

 

[92ShoOff]

One bolt that does come to mind is one of the two bolts that hold the crossover tube to these brackets that connect to the front and rear (or left and right) surge tanks of the intake manifold. The crossover tube is the one that is just above the plastic upper timing cover, on the battery side of the motor. You may have mistakenly removed one of those two bolts that keep the crossover tube in place, thinking those bolts need to come out to remove the intake manifold. I do believe they were 13mm bolts, if not 12mm... but check there to see if you have 2 identical bolts in place there already or not. Hope that helps.

 

[JohnW63]

It's not the crossover bolts, I checked after your post, 92ShoOff.

Here is the bolt

 

[yamahaSHO]

Off the top of my head, I can't think of anything on the intake with a 13mm head. The only thing I can think of is the bolt that mounts the intake to the fuel rail crossover support. The support connects the two heads and the crossover for the fuel rails is supported by it. This is just in front of the IAB when looking from the front of the engine bay.

 

[thecrew2999]

ooo oo me

try the heater hose line that is on the drivers side of the intake behind the throttle body, on the intake you will see a bolt hole near the back. and a metal coolant line with a strap welded to it.

if not the olny other bolts that size are the cross over tube mounting bolts

 

[yamahaSHO]

ooo oo me

try the heater hose line that is on the drivers side of the intake behind the throttle body, on the intake you will see a bolt hole near the back. and a metal coolant line with a strap welded to it.

if not the olny other bolts that size are the cross over tube mounting bolts

I thought of that too, but IIRC, that's a 12mm.

 

[SHOsFAST]

Didn't come from the Alt. Mounting bracket did it?

 

[92ShoOff]

Hmmm.... you've got me stumped. The only thing that comes to mind looking at that is the bolt that holds the round, black canister to the intake on the side up against the firewall. I don't think the bolt head was THAT big though but I'll check on that here shortly.

But as SHOsFAST suggested, it does kinda look like one of the accessory mounting bolts, or maybe even one of the belt tensioner bracket mounting bolts. I'll be going out to the garage here in a little bit and take a look in my engine bay (which is currently disassembled a good bit) and see if I can find where this bolt may have come from for you. I'll let you know what I come up with here within the next couple hours here when I go out there.

 

[New2SHO's]

Is it a vibration dampner bracket bolt that holds the bracket to the shocktower?

 

[JohnW63]

TheCrew2999,

I assume you mean the upper heater core line that has a flat metal attached braket that connects to the driver's side of the intake. I don't think that one is THIS big, but I will check when I get home.

92ShoOff,

I thought about that. I had to loosen the alt to get enough play in the intake bracket to get it off the lower bolt, but I didn't see any empty holes.


Now, to recap what goes on the back of the intake....
On the driver's side we have the pain in the butt bolt I posted a previous thread about which holds the lower heater core coolent line and a wire loom bracket.

Then, moving toward the passenger side, we have the second bolt holding the bracket for the wire loom.

Next we find the bolt to hold the intake support bracket

We come to the far passenger side corner and we have the lower bolt for the intake support, which is a double threaded do-hicky that also is the connection for another end of the wire harness with metal tab with a 90 degree bend in it and the chassis ground wire.

Have I missed any bolts ? If not, then I feel better about moving forward. I just don't want to leave something off back there, where I won't be able to get to it after the intake goes on.

 

[92ShoOff]

I just took a look around my engine bay and couldn't find a bolt like this on the front (accessory side) of the motor, nor anywhere on the top of the motor. What all did you disassemble? I assume you completely removed the intake manifold but depending on how much else you removed means I might have to do some deeper looking around. Let me know when you get a chance!

 

[yamahaSHO]

Is it a vibration dampner bracket bolt that holds the bracket to the shocktower?

Negative. Take a look at your bracket again, those are nuts. The only screw is found at the lower portion of the dampner and it is much longer.

 

[New2SHO's]

Negative. Take a look at your bracket again, those are nuts. The only screw is found at the lower portion of the dampner and it is much longer.

I was mistaken in that, it doesn't hold the bracket to the tower but the top of the damper to the bracket, 1.5 inches below the nuts. Mine is the same length, going on thread count, as the pics posted and 13mm. It was(bolt) already out in mine because I'm just pulling my motor out and went and looked/compared but had a brain fart going from the garage back inside I guess. Sorry bout that.

 

[JohnW63]

Success !

It was off the alternator. But the shape of the bracket kept the hole hidden from above. It was the top bolt. I had to remove it to be able to pull the bracket forward slightly to get the passenger side front intake support out.

Now I know I haven't left some important hole open on the back side. That's a relief.

Thanks for the help. I should have looked more closely after ShosFast suggested it.

 

[92ShoOff]

Hey glad you found where that bolt came from! Shouldn't have needed to move the alternator at all to get that intake support bracket bolt loosened up and the bottom, but again at least you found it!

 

[JohnW63]

The brassy looking bracket is held fairly tight in place and tight against the lower end of the bracket. On MY car at least.

 

[LeddZepp8687]

ooo oo me

try the heater hose line that is on the drivers side of the intake behind the throttle body, on the intake you will see a bolt hole near the back. and a metal coolant line with a strap welded to it.

if not the olny other bolts that size are the cross over tube mounting bolts

Wrong!

That bolt is black.