Re: [COUPERS-TECH] Spin on adapter and filter weight

[Hartmut Beil]

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Don.

When the filter is operated, it fills completely with oil and stays that way even when the engine is shut off.

That makes for an additional amount of oil circulating the engine, thus additional weight.

 

Don you are lucky. Your blowby problem settles at 4 quarts. With the filter mounted, you are providing the extra half quart needed to satisfy the manufacturers recommendation.

Then on the other hand you are right, in that combination, there's not much weight increase.

But that's not how is being measured for a W&Balance calculation.

 

 

Hartmut

----- Original Message -----

From: DONALD BOWEN

To: COUPERS TECH

Sent: Wednesday, May 31, 2006 9:47 AM

Subject: [COUPERS-TECH] Spin on adapter and filter weight

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It isn't clear to me why the weight gain with a spin on filter should include the weight of an additional quart of oil. My oil capacity is largely determined by blowback of what my C-90 "considers" to be excessive filling. The Continental manual says the sump holds 4.8 qts. Yet, when I filled above 4.0 qts, I got blowback and dirty belly. I don't think anything changed when I added the spin on filter, just that part of my 4.0 qts circulated through the filter during engine operation, and some remained in the filter after shutdown. If this is so, Eliacim's 415-C weight gain might not be 3.5 lbs? I have excellent baffling, and my oil temp remains below 175 deg F. I'm open to technical opinion to the contrary on this issue.

Don

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