How to identify PMR's vs forged rods...

[jays big blue]

I heard this rumor that some '01 and older 7.3's had forged rods. What would be the easiest way to find this out and how do I identify one from the other? I'm guessin that removing the oil pan would be the only option.

[jesilvas]

There is a thread listing serial numbers and which inspection plug to pull.

I made my Samsung SGH-I997 send this.

[dentexpowerstroke]

7.3 Inspection Hole for Powdered Metal Rod Determination

The block serial numbers are not correct, mine falls in a forged number but I have pmrs.

[Jrz13]

My 01 had PMRs...

[jays big blue]

Thanks for the info guys..

[jesilvas]

Originally Posted by dentexpowerstroke

7.3 Inspection Hole for Powdered Metal Rod Determination

The block serial numbers are not correct, mine falls in a forged number but I have pmrs.

yours is the first one I've heard of that's wrong

I made my Samsung SGH-I997 send this.

[dentexpowerstroke]

Originally Posted by jesilvas

yours is the first one I've heard of that's wrong

I made my Samsung SGH-I997 send this.

Yeah, I've heard of people having forged in what should be pmrs but I was the first case of pmrs in what should be forged.

[layson]

Only way to tell is to pull the plug! Easy to do. I wouldn't even bother researching serial numbers...

[LakiPolitis]

Do you have to drain all of the oil out of the motor first to check the rods?

[SuperCrutyPS]

Shouldn't have to if you use the inspection hole described above. The hole is above the pan. From what I understand, you pull the plug and 'bump' the engine until a rod is at the hole.