PCV Valve
03-22-2021, 04:30 PM
#1
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PCV Valve
Manual says every 100 hours, or once a year. Honestly, I think im still on the original ones from 2007. Engines run great (twin 525efis, 189 hours). Question, you guys changing yours often?
03-22-2021, 04:48 PM
#2
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The manual is Mercury ? they sell parts, enough said.........if it still rattles, blows and don't suck, its fine...........
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03-22-2021, 05:08 PM
#3
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What's a PCV valve? :-)
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Gimme Fuel (03-23-2021), SB (03-22-2021)
03-22-2021, 05:11 PM
#4
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Lol^^
Mostly the blue motors have them.
Mostly the blue motors have them.
03-23-2021, 11:54 PM
#6
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Lol on the replies. Yep, Mercury Racing wanting all these things changed. 190 hrs on the motors today and running like a top. Guess I won't be too concerned with them then. Thx guys...
03-24-2021, 12:46 AM
#7
Positive crankcase ventilation. Its a one way check valve , It directs oil vapors generated by blowby from the valve covers into the aircleaner to be burned rather than vented to the air in the engine compartment.
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liberator221 (03-24-2021)
03-24-2021, 06:58 AM
#8
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I got rid of them and puny breather system on my tired 502 MPI's and went from burning a quart in 30 minutes of hard running to burning a quart maybe all season.
