[Fot] Spitfire oil pan baffling

[Bill Babcock]

The electric accusump valves are restrictive in the fill direction-- 
the idea is to not rob pressure from the bearings during startup to  
fill an empty accusump. They flow more in the out direction. But still  
you will lose some pressure plumbing them in the easiest way, which is  
through the oil cooler with a check valve. In a low pressure situation  
you don't need oil going to the rocker arms, or through the bypass.  
You need it in the plain bearings. Plumbing straight to the galley is  
the logical approach, and it's recommended by Accusump. You also have  
a lot fewer hoses and connectors, and no check valve that might stick.

I don't do any oil pan baffling anymore except a windage tray and  
crank scraper, I let the accusump take care of those low oil delivery  
moments. Of course Tony Garmey's father-in-law built my new motor, so  
I don't know what he might have done there, but those still have the  
accusmp plumbed directly to the oil galley.
On Oct 30, 2008, at 4:30 PM, Tony Drews wrote:

> What kind of valve is in the accusump?  The newer electric ones seem  
> to be restrictive.  The manual ball valve is NOT restrictive.  The  
> old-style electric valves don't seem to be restrictive.  What Glen  
> said about the check valve.  Do you have large ID lines from the  
> accusump to the motor?  Look for restrictions...  Mine's plumbed  
> into the oil cooler lines (with check valve), but it's better to be  
> plumbed directly into a main oil gallery.
>
> - Tony
>
> At 11:42 AM 10/30/2008, Barr, Scott wrote:
>> The Accusump should be able to handle that, but it doesn't seem to be
>> doing so.
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Bill Babcock
Babcock & Jenkins
Billb at bnj.com
503.936.7660
www.bnj.com

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