[Fot] Question on Accusump Install with External Oil Lines On a Spitfire

[Chuck Arnold]

I think enlarging the bearing feed holes may be the key with the TR6
engine.  Doing that this rebuild.

On Sat, Feb 7, 2009 at 8:53 AM, Bill Babcock <Billb at bnj.com> wrote:

> I agree, I use a single line. I think people are trying to get around
> making the gallery plug hole bigger. Nerve-wracking to drill on
> something like that, but worth doing as long as you can catch all the
> chips and clean the block after. I have also taken that opportunity to
> enlarge the bearing feed holes.
> On Feb 7, 2009, at 3:18 AM, Henry Frye wrote:
>
> > I've followed this thread and kept seeing people talking about
> > plumbing
> > multiple lines from the accusump into the main oil gallery. Why? Isn't
> > one big line going to do exactly the same thing?
> >
> > Is there some fluid dynamics voodoo I am not privy to?
> >
> > Unless those oil feed ports are going directly into an oil gallery
> > feeding the crank, I see no benefit to several lines over one
> > adequately
> > sized line. More expense, and a labyrinth of oil lines is just more
> > stuff to go wrong.
> >
> > Seems to me if you really needed the flow from multiple locations your
> > motor is already toast...
> >
> > -----Original Message-----
> > From: Glenn Franco
> > Subject: Re: [Fot] Question on Accusump Install with External Oil
> > Lines
> > On a Spitfire
> >
> > For the next engine build I will enlarge the 4 oil feed ports so they
> > can be directly plumbed from my accusump.
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>
> Bill Babcock
> Babcock & Jenkins
> Billb at bnj.com
> 503.936.7660
> www.bnj.com
>
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-- 
Chuck Arnold