A follow up to "oil starvation issues" thread

[kansas stocker]

Are you positive that you had .003 on all mains? Have a circle track friend that had exactly the same results that you have had with the same little m block. His engine builder missed it twice and now he has a new builder.
Pete

[joespanova]

Originally Posted by HP HUNTER

Listen to this post.

We refer to "wet mag" as an FPI process in aviation.
Fluorescent penetrant inspection (FPI )
I've never heard it referred as "wet mag".......but I believe that's what you or Mike mean.
And yes , I have the option of using traditional mag or FPI.

[joespanova]

Originally Posted by kansas stocker

Are you positive that you had .003 on all mains? Have a circle track friend that had exactly the same results that you have had with the same little m block. His engine builder missed it twice and now he has a new builder.
Pete

I am 100% positive. I am the "builder" . I am a "machinist" of 40 years and use the most accurate currently available gauges used in our shop ( aircraft ).

[joespanova]

[joespanova]

[joespanova]

[joespanova]

SO ........there ya have it.
Disgusting isnt it.........

[Alan Nyhus]

Glad you caught it before things turned into shrapnel. Amazing how the rod brgs. look perfect and the mains are hammered. Aeration, too much oil upstairs, an internal leak...likely a combination of things. Are you going to change where you source the vacuum or eliminate the pump all together?

[carl hinkson]

Originally Posted by joespanova

SO ........there ya have it.
Disgusting isnt it.........

The mains have a constant load where the rods don't.

At least its on one piece and you still have something to work with!!!!

[Mike Taylor 3601]

Originally Posted by joespanova

We refer to "wet mag" as an FPI process in aviation.
Fluorescent penetrant inspection (FPI )
I've never heard it referred as "wet mag".......but I believe that's what you or Mike mean.
And yes , I have the option of using traditional mag or FPI.

wet mag is FPI when translated from hillbilly. Use the FPI on crankshaft.
If I didn't know anything about this crank and came into my shop,my first guess is it's cracked and would be surprised if it isn't.
I can't tell in picture but has the radius been ground less than original. Been reground and radius reduced? Normally BRC or any aftermarket crank would have 1/8 (.125'') radius at the least,can't tell about crank in picture,but rod bearing doesn't look like it would clear a .125'' radius,looks like it doesn't have the chamfer or narrowed to clear, if radius has been reduced that weakens crank.
Mike Taylor 3601
Mike Taylor 3601