I found in my model maintenance schedule the periodical check of the pcv valve. I swear I went through all exploded view but I could not find the PCV valve. Does anyone have a hint on where should I look ?
It would be on your starboard valve cover, towards the rear. Mine is sort of hidden underneath a fuse box. What's the full model number or serial number of your engine? The letters after GL are important.
Thank you for your answer I really appreciate.
My model is 5.7 GL-A. Do you happen to know what is the part number of the pcv valve ? https://www.marinepartseurope.com/en/volvo-penta-cat-7746090.aspx
the above link gives all exploded views for your engine. it actually looks very similar to mine but still I was not able to spot the pcv valve (and it is not mentioned as such anywhere).
Thank you for any further consideration.
Bondo, the assembly of parts 7-11 make up the pcv valve. Last year I ordered part number 10 from Volvo and they sent me a new PCV valve.
SeaLord, it appears our valve covers are identical and you should have a pcv valve where mine is. A picture of your starboard valve cover would be very helpful.
View attachment 217263
Thank you skidive.
I had a picture taken of my 5.7 gl-A here attached.
If the valve is to be found starboard cover, as Bondo and scheme interpretation seems to suggest, it is then inserted into a hose. I am told the hose goes into the flame arrestor. This seems to match the purpose of the PCV valve i.e. recirculating uncombusted gas into the engine for new combustion. I would remove the hose and see if what is inside looks like the PCV valve I just ordered.
By the way, when I entered 3856215 (code corresponding to ventilation valve in the schematic I linked) on a vendor site, a PCV valve was shown among the aftermarket substitutes (the original volvo spare (no picture) would have taken a minimum of 10 days but costs less which puts me in suspicion) PLEASURECRAFT R035023 - PCV Valve - 90 Degree)
Hi again
I found out that inside the starboard hose the elbow of a PCV valve is secured. Actually is a delco PCV meaning the original parts from 7 to 11 in the exploded schematic were long ago replaced in my engine (used 2002 Glastron 229GS). The only thing that surprises me is that the part of the valve going into the valve cover is not screwed or secured in any way so if the engine is not running you remove it just picking from the grommet. Should I understand that this is normal since when engine runs the vacuum it creates is sufficient to hold the valve in place ?
Thank you (at first a local mechanic even doubted the engine sported PCV valve so I was a little puzzled since I am new of the business. You support has been invaluable so I was comforted and guided in further investigation)
You are correct, the pcv valve can be removed by just pulling it out. You can remove it from the hose by undoing that strange hose clamp on the end. The hose for the pcv valve goes to the bottom of the carburetor and provides "positive crankcase ventilation (pcv)" or vacuum. The hose on the port side valve cover is a vent tube that leads to the flame arrestor where blowby gases are reintroduced into the fuel/air mixture.
