Quote:

---

we will never know so speek as you please.should this be in brail for you?J/K i guess i am done here.

---

Quote:

---

I can assure you all of one thing. A H-beam style rod just doesn't break in half. Bills problems were clearly from something else.

Also, a spun rod bearing is not the fault of the rod. A spun bearing is either improper rod bearing clearances, poor lubrication, or an oiling problem or over stretched rod bolts ( which would almost always be an old set that are worn out). Lastly would be if there was an oblonged rod big end etc. IF the rod got hot enough, THEN it possibly break. You are talking about a total catastrophic set of conditions to break any ones ( assuming its a quality brand) H beam rod.I'll try and post some pics later of what some customers have brought me, when done wrong.

All I am saying, is I wouldn't be making this a K1 witch hunt based on what has happened to Bill. Those are other issues.

However, Wild Bill and "witch" anything might not be a good idea right about now !

---

I have to disagree here. There is nothing clear about any of Bills photos, except broken parts. I don't see heat in the rod, but it is broken. Parts DO fail.. And those were the 2 new rods.

Not a witch hunt here. I have a K1 crank in my 950+ hp B1, and it is running great. But I have GRP aluminum rods.


Chris..

Quote:

---

Quote:

---

I can assure you all of one thing. A H-beam style rod just doesn't break in half. Bills problems were clearly from something else.

Also, a spun rod bearing is not the fault of the rod. A spun bearing is either improper rod bearing clearances, poor lubrication, or an oiling problem or over stretched rod bolts ( which would almost always be an old set that are worn out). Lastly would be if there was an oblonged rod big end etc. IF the rod got hot enough, THEN it possibly break. You are talking about a total catastrophic set of conditions to break any ones ( assuming its a quality brand) H beam rod.I'll try and post some pics later of what some customers have brought me, when done wrong.

All I am saying, is I wouldn't be making this a K1 witch hunt based on what has happened to Bill. Those are other issues.

However, Wild Bill and "witch" anything might not be a good idea right about now !

---

I have to disagree here. There is nothing clear about any of Bills photos, except broken parts. I don't see heat in the rod, but it is broken. Parts DO fail.. And those were the 2 new rods.

Not a witch hunt here. I have a K1 crank in my 950+ hp B1, and it is running great. But I have GRP aluminum rods.


Chris..

---

Quote:

---

by looking at the pictures, i'd suspect either the wrist pin seized or the rings butted together, pulling the rod in two. once cooled back down the rings might be free again, making it easier to overlook that as the problem. a seized wrist can do almost the same thing, although galling will be very evident upon inspection. in my experience, the connecting rod itself is almost never at fault in that type of failure.

---

Quote:

---

Metalstorm,

You may in fact be correct.

After the fact,sometimes its just an educated guess, but this isnt Scotts first dance either. I would be willing to bet he has a very good idea what happened.

---

Quote:

---

Quote:

---

Metalstorm,

You may in fact be correct.

After the fact,sometimes its just an educated guess, but this isnt Scotts first dance either. I would be willing to bet he has a very good idea what happened.

---

I wish that cause was posted. He should have told WildBill, and he makes tons of posts. I suspect oiling...
I will have to check a couple hundred of Bill's posts, but I thought he had plenty of ring end gap, 0.021"? As long as it wasn't sprayed with nitrous.

---

with Jim, same 2 rods. maybe something in the block was clogged up. be nice to know what Scottt thinks happened. you don't make all these posts then never say.....

Quote:

---

Quote:

---

Quote:

---

Metalstorm,

You may in fact be correct.

After the fact,sometimes its just an educated guess, but this isnt Scotts first dance either. I would be willing to bet he has a very good idea what happened.

---

I wish that cause was posted. He should have told WildBill, and he makes tons of posts. I suspect oiling...
I will have to check a couple hundred of Bill's posts, but I thought he had plenty of ring end gap, 0.021"? As long as it wasn't sprayed with nitrous.

---

with Jim, same 2 rods. maybe something in the block was clogged up. be nice to know what Scottt thinks happened. you don't make all these posts then never say.....

---

X2

Some kind of suspected cause of failure would be nice to see, from those who have the parts in hand. Accidents happen but some kind of avoidance plan would be a helpful thing.

Quote:

---

Also, a spun rod bearing is not the fault of the rod

You mean, except for big-end eccentricity, bearing crush, cap align and bolt position.....

---

Quote:

---

Also, a spun rod bearing is not the fault of the rod

You mean, except for big-end eccentricity, bearing crush, cap align and bolt position.....

---

That would be the fault of the machinist and/or engine builder for not finding these problems before assembly. Very few rods made nowadays are useable right out of the box and all need to be checked prior to assembly.

Quote:

---

Then again, what would I know about that, I've only built one engine in my lifetime.....

---

yeah...right...