air horn intake

[jdeoliveira74]

does anyone know what the bolt size that holds the airhorn intake to the intake manifold??

 

[TedG]

Assuming: 6.2/6.5 NA in hmmwv.

MS90725-47 BOLT,MACHINE 5/16-18 x 3.75 X ..........................2 Required

don't forget you need rubber insulator for each bolt and washers.

 

[jdeoliveira74]

Its a 6.5 NA engine sorry. Rubber insulator??

 

[TedG]

Each bolt requires a flat washer and a rubber washer (for vibration). If you do not install the rubber washer, the air horn will crack with time.

Get a 5/16 grommet and cut in half crossways.

12 is the flat washer

11 is rubber washer

 

[Bummy]

Hate to bring up an old thread, but I just bought a hmmwv air horn online. I am hoping to make a cold air intake out of it for my m1028. I am wondering if it will fit my j code intake, even with the bolts front to rear, rather than side to side. FYI they are $35 dollars on eBay with $15 shipping.

 

[fnpurist]

I was looking at my intake horn today and noticed that the skinny slit that's recessed on the top was crack down inside allowing me to see all the way through it to the top of the engine. Is this normal?

 

[TedG]

IIRC, the aluminum intake for a humvee and a cucv type setup are very similar. Only difference is the cucv has a divider in the manifold. Should work though.
That area has a tendency to dry rot. As long as it is not cracked into the filtered air, it should be fine.