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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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B18 flame trapViews : 539 Replies : 1Users Viewing This Thread : |
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Jun 23rd, 2022, 14:11 | #1 |
Senior Member
Last Online: Feb 6th, 2024 11:22
Join Date: Jun 2007
Location: Kildare
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B18 flame trap
Hi,
I'm retrofitting the full crankcase breather system to my B18. The secondhand breather box that bolts to the side of the engine has a small brass mesh on the air intake pipe. I can't find a part number for it (or proof of its existence in a B18 context) anywhere. I also have a crankcase breather valve, part number 418982, which is effectively a one-way valve. As the brass mesh looks like its seen better days, can I remove it as I'm guessing that the breather valve is all I need?
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Jun 23rd, 2022, 15:53 | #2 |
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Last Online: Today 00:00
Join Date: Jul 2007
Location: Connecticut, USA
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Aidan;
That "Flame Trap" is a standard part of the Oil Trap Assembly...it looks fine, and it gives any oil droplets lots of surface area on which to precipitate out, fall back into the Oil Trap, and make their way back to the Crankcase...I'd leave it as it is after cleaning the OT with mineral spirits. The "one-way valve" is aka the PCV Valve...it has a preferred attitude of installation, because of the low force spring applying the force on the internal shuttle (should/must be vertical!)...that is why it is typically located right above OT in the B18 installation. PCV Reference: https://www.sw-em.com/pcv_diagrams_and_notes.htm Cheers |
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