[DeTomaso] This ought to be fun...

[Will Kooiman]

I know (about the hole plugging).  I'm really stretching it.  I just can't
come up with any other explanation.

 

1.	Improper machining (unlikely)
2.	Bearing insert upside down (unlikely)
3.	Bent crank (unlikely)
4.	Oil pressure lifting the bearing (unlikely)
5.	#1 main not torqued (you would have said something)

 

I are definitely not an authority on the matter.  I'm just telling you
everything I can think of.

 

Have you ever had a bearing spin in a red Pantera?

 

  _____  

From: Kirby Schrader [mailto:kirby.schrader at gmail.com] 
Sent: Tuesday, April 17, 2012 3:39 PM
To: Will Kooiman
Cc: MikeLDrew at aol.com; daniel.c.jones2 at gmail.com; detomaso at realbig.com
Subject: Re: [DeTomaso] This ought to be fun...

 

We'll see what he finds. Just talked to him and he hasn't had a chance to
get to it yet.

It's racing season, ya' know...

 

The crankshaft will get crack tested when it is turned.

 

I have never ever had that hole plugged... and I wasn't running  oil
pressure that high...

Hell, the first engine I had in the car from 1985 until 1998 would peg the
oil pressure gauge at 100psi for the first few minutes until it would warm
up. 

This is the first main bearing I've ever had go in a Cleveland.

 

Kirby

On Tue, Apr 17, 2012 at 14:56, Will Kooiman <will.kooiman at gmail.com> wrote:

If the 4-bolt mains don't work out, they should give you a discount putting
bushings in your other block.  Part of the charge on this block was for them
to buy the tooling.

But let's don't get ahead of ourselves. There's a good chance these mains
will work.

I'm still at a loss why #1 would spin.  The only thing I can come up with
(aside from being installed upside down) is that the oil pressure tries to
lift the #1 main.  If you take a look at the size of the oiling holes, they
are huge. The bearing covers most of the hole, but that still leaves a fair
amount of surface area for the oil to push on - trying to lift the insert.

I have seen oiling mod recommendations to plug the large hole (probably with
a smaller hole drilled in the plug).  I don't remember the exact steps.
They are on the network54 site.

But I still don't understand why it happened when 99% of the 351C's on the
road do not plug the large hole.


-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On

Behalf Of MikeLDrew at aol.com
Sent: Tuesday, April 17, 2012 2:44 PM
To: daniel.c.jones2 at gmail.com; detomaso at realbig.com
Subject: Re: [DeTomaso] This ought to be fun...



In a message dated 4/17/12 12 11 29, daniel.c.jones2 at gmail.com writes:


> Still a 2 bolt main block?  With a solid roller cam and the way you use
> it,
> it should be converted to 4 bolt mains.  Is there any evidence of cap
> walk?
> I'd be installing something like the Bessel main caps if I were you.
>

At a minimum, since some enormously kind Texan people (isn't that
redundant?) are offering you free four-bolt main caps, you should have the
block
converted to accept them.

Mike
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