I put an AirSep air filter/silencer on Calypso's Perkins 4-108 and it did reduce the intake noise. It has been a while since I have heard the engine with out the AirSep in place but IIRC it mostly reduced the roaring sound of the air rushing through the intake.
The AirSep also recycles blow by oil mist directly back into the oil pan. On Calypso's older, high hours engine the blow by handling is nice feature. (BTW this 4-108 is Calypso's second engine installed around 1990 by the prior owner. I estimate it has about 2,000 hours.) I expect an AirSep for your engine would cost more than the Volvo part, but maybe not as I have heard Volvo parts can be expensive. Martin Calypso 1971 C&C 43 Seattle ________________________________ From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Bill Hoyne via CnC-List [cnc-list@cnc-list.com] Sent: Monday, August 10, 2015 11:36 AM To: cnc-list@cnc-list.com Cc: Bill Hoyne Subject: Stus-List Volvo penta 2003 air silencer Hi All, I have a old (no surprise there)volvo penta 2003 and my mechanic said if I put an intake air silencer (part no 840691) on it would reduce the noise level of the engine. Volvo unfortunately no longer makes these things. Can they be found? (No luck yet with search) Is there a better way to do this with other aftermarket parts? More importantly will this reduce the volume of noise my engine makes? Cheers, Bill Mithrandir ’74 C&C35 MkII in Victoria,BC
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