Check valve and filter assembly

[Capt dave 258]

Can someone tell me the purpose of the check valve and filter assembly on my mid 80's, Johnson 110hp outboard? It threads into the engine with about 1/4 inch diameter threads and has a very small nipple at the other end. A hose pushes onto the nipple. There is a small filter screen inside. The nipple busted off and the hose was just laying there. The motor does not run well and I was wondering it's function and could this be my issue? Thanks for input.

 

[flyingscott]

Sounds like a pulse limiter. Put up a pic. If it is the pulse limiter it needs to be connected to the vRo pump.

 

[Capt dave 258]

 

[Capt dave 258]

View attachment 388995

There is a small screen in the threaded end and a nipple is busted off the other end

 

[racerone]

Nothing to do with the VRO pump.----Part of the oil recirculation system.-----Post the actual compression values on this engine.----They are world famous for broken piston rings.

 

[Capt dave 258]

Compression is 110 in two cylinders and 105 in the other two. I have disconnected the VRO and am running with mixed oil/gas.

 

[racerone]

Some will argue.----I would remove bypass covers to look at pistons and rings.----Cost you a few $$ for gaskets.----And at 105 PSI on my compression tester the head would come off without hesitation.

 

[Capt dave 258]

Ok, thanks