Found...Mystery Bolt???

[kentuckycucv]

I did my AC60G swap out yesterday, and while I was all face down in the engine I noticed a loose bolt kind of wedged on my intake manifold held on by my injector lines. Looks like a manifold bolt but I cant find a missing one. I also found another under my manifold while I was cleaning out the rat nest. It has a 10.9 on the head.... Do these things back out? Maybe extra army parts??? This is not going to be a worthless thread BC I have a picture.

 

[Tinwoodsman]

Wonder if they fell down there during a previous manifold servicing?

 

[gimpyrobb]

Thats for the Fetzer valve. Torque to 35ftlbs

 

[DokWatson]

Thats for the Fetzer valve. Torque to 35ftlbs

What the **** is a fetzer valve?

It kinda looks like a bracket bolt... but I would imagine it would be obvious if you were missing alternator or power steering bracket bolts. Maybe somebody dropped them at some point and couldn't find them and grabbed extra. Manifold bolts don't have the flat part on the bottom of the head, and it would be rusty.

 

[wreckerman893]

What the **** is a fetzer valve?

Same function as a Plebney switch...just manual instead of electric.

 

[DokWatson]

What the **** is a fetzer valve?

Same function as a Plebney switch...just manual instead of electric.

I'm guessing they keep these in the tool box next to the grid squares?

 

[wreckerman893]

I'm guessing they keep these in the tool box next to the grid squares

And tied neatly together with heavy duty flight line.

 

[RANDYDIRT]

And tied neatly together with heavy duty flight line.
Then stuffed neatly under the fire drill.

Dirt

 

[maddawg308]

And sprayed with a liberal coating of elbow grease before installing.

 

[NCBloodhound]

Maybe it held the flux capacitor in?

 

[NCBloodhound]

And sprayed with a liberal coating of elbow grease before installing.

Where do you buy yours? I buy mine here: KaleCoAuto, Hard to find automotive items!

 

[Recovry4x4]

Looks like it needs a little cleanin' up. I'd dip it in a bucket of steam.

 

[goldneagle]

Any grownups in the house? Obviously not!

 

[Darwin T]

no one said anything about the 55 gallon drum of muzzle blast that should be kept in all work areas. oh, and to answer the question above "No Adult Supervision Here"

 

[Tinwoodsman]

It is amazing that there are so many people on this forum who have such detailed experience with this bolt. Nice to know when I ask a question in the future.

 

[camogriz]

I believe that bolt is for the bottom bracket of the driver's side alternator. There are two of them. Maybe they were misplaced during some US Army swap of good parts for other good parts.

 

[davey8943]

... It has a 10.9 on the head....

10.9 means its a metric bolt.

What are the odds of GM using a metric fastener in this truck?

I have a sneaking suspicion that this is a "lost bolt" from somewhere or something else...

Dave

 

[Sardot1]

Looks like it needs a little cleanin' up. I'd dip it in a bucket of steam.

Prop wash may work a little better.

 

[wreckerman893]

It is amazing that there are so many people on this forum who have such detailed experience with this bolt. Nice to know when I ask a question in the future.

Sometimes you just have to separate the wheat from the chaff.

I used to have the FSN and a TM for the M-346 Chaff Separator (with Wheat Collector) but since the miltary quit baking their own bread all of the machines have been surplused out. Occasonally one of them pops up on GL.

 

[camogriz]

GM vehicles from the mid 1980's frequently used a mixture of standard and metric bolts in their construction.