Optimax no oil getting in engine tank

[RMT]

What would stop the oil pumping to the oil tank on the engine
I have checked there is pressure in the big tank
Engine has just been fitted (2006) 250xs
Have tryed undoing top tap on engine tank and running engine but still does not seem to be getting there
Cheers Richard

[gar163y]

I've had this and apparently it's quite common. Assuming it's the same as on my 300 there is a valve on the opposite side that controls the flow. It is mounted low down in the tray. It was a simple fix and from memory about £16.

I have also assumed you have tried to bleed the system by taking the screw cap off with the engine running.

Gary

[RMT]

Thanks for that is it the brass fitting between the in line filter and pipe to the top of the tank?

[gar163y]

No, it's the other side to the header tank, low down tucked behind the bracket that holds the main electrical plug.

You may be able to clean it up and reuse it, I kept mine as a spare.

[scottyboy]

MERC part # is 8781051 if its the same as the valve that goes on the 200xs (which I think it is).
I keep one in my van.
Ya can blow em out and clean them. They will work for a while but its better to replace it. They fill with belt dust.

[RMT]

Thanks for the replys

If that valve has gone would there still be pressure in the main (big) oil tank? Because when I undo the big cap on the tank it feels like I'm releasing a fair bit of pressure

[scottyboy]

Yes to an extent. Normally just not enough pressure. Try doing an oil pump prime. Check if you have a small in-line filter to the small tank on the engine aswell. Never had one block up up better you never know.

[mobil1]

And the correct lines mounted on the correct places?
Black hose= pressure, mounted under starter and lower fitting on oil tank
Black hose withe blue line = oil feed, mounted on the small wihte filter and on top of oil tank in boat if i remember correctly.

Small white filter is good?
You will need to prime the oil before running
Then check while engine is running of remote oiltank fills up, unscrew it a couple of turns...
Normally not many problems with the oil system, mostly peoples faults...

[RMT]

Thanks for all the posts I plan on getting back to the rib in the next few days and will try a few tests
1 disconnect oil pipe just before inline filter to tank on engine run engine and see if any oil is coming out if not
2 check filter at end of pipe in main oil tank under seat
3 double check pressure is building up in main tank
4 check pipes round correct way
5 check pipe for kinks etc
6 look into valve on pressure end opersite engine oil tank

[pugracer285]

My XS wouldn't bleed through for some reason using the Merc electronic priming system so I disconnected the pipe off the engine block (engine off) and stuck a bike pump on it.

Opened the bleed tap on the top of the engine oil tank and pumped up the pressure (through the main tank) until the engine tank started to overflow, then reconnected the oil pipe to the block. It's been perfect since.

I had thought initially the oil lines might have been kinked in the rigging hose but this proved I just needed to get the line between the engine and remote tank properly bled through.

[RMT]

Thanks for that I will add that to my list of things to try when I make it to the boat

[RMT]

Visited the boat today cleaned up the oil pickup filter loads of jelly type stuff on it run engine still not pumping took pipe off tank was oil there but very slow dribble so then took hose off engine connected big bike pump started pumping two mins later got sprayed with oil from pin holes in cap ! Thanks pugracer Put back run fine just need to monitor display to see if it carrys on topping up
Thanks for all your posts