2004 MSX 110 - got new weber plastic oil tank, but not sure how to plumb it

[ptreb]

Hi, I had milky oil/ pancake batter in my engine (raw water/ oil - antifreeze is clean). took out the oil tank and it rattles badly. I ordered a new version of tank on ebay (plastic tank, weber says they are out of stock on those). The tank came but the plumbing is a bit different - the small cyclone seems integrated. Online it shows that there is also a rollover tank available to add but I am wondering if anybody installed this new oil tank without the roll over tank - what hoses do I need to change/ extend?

there is one hose that comes from engine to top of old metal tank (oil) - and the new plastic tank doesn't have that center top connection at all.

has anybody done that? I am new to MSX 110, didn't expect this to be that complicated.

thanks,

[ripcuda]

Welcome,
Did you pressure test your stock oil tank (the water jacket side) to confirm it is leaking into the oil chamber?
I've seen a few oil tanks with loose baffles in them that didn't leak water into the oil. That said... when they do go bad... they surely can leak water into the oil.

I have taken just the upgraded oil tank (and roll-over tank) and DIY'ed it into my ski w/o the full kit (that used to be offered).

See the attached guide I created:


Regarding not using the roll-over tank (white tank in pic). There are 2 connections to it from the main oil tank. You can't just plug these hoses, so I think you need some sort of catch can. The emissions recirc hose (back to "airbox") can be left off. And the roll-over tank drain back to the sump can be plugged (in the block)... but the other 2 hoses off the main tank need a connection.


Cheers!

[ptreb]

thanks very much, this is what I was after. I don't have the white plastic tank and all the other hoses - just the new black main oil tank. this helps, i will try to see what i can come up while not even using the rollover tank.

[ptreb]

one more hose i'm puzzled with is the one that goes from engine to center top of the old oil tank. Its screwed in with a bolt that has oil passage ways. the new plastic tank doesn't have that center top connection point at all.

[ptreb]

i should have read everything in detail, the last page speaks to eliminate that line. thanks.

[ripcuda]

I've thought more about the roll-over (white) tank. If you eliminate the emissions vapor recirc hose back to the "airbox"... and eliminate the oil drain-back hose to the block (plugging the block port)... then that only leaves 2 hoses... that you can see in the previous picture (left side of assembly).

These both come off the built-in oil separator/cyclone. The top hose would be for the separated vapors and the bottom hose would be for the separated liquid oil (purple hose in pic). I would think you could easily plumb these into any sort of vented oil catch can... like I do with the stock, oem round oil tanks.

Cheers!