Oil leaks out of reservior

Hi All,

I have a 2004 125hp Mercury saltwater series motor with the oil tank under the cowling.  Unfortunately, if the tank is more than 1/2 full the oil comes out of the reservoir cap when I trim up but the cap does not look damaged at all.  Has anybody else had this problem and what did you do to fix it?

 

Cheers

Toby


Posts: 614

Date Joined: 24/02/11

Cap

Mon, 2012-01-23 13:36

Try adjusting the cap they work on O ring compression so as you tighten it they commpress if it does not screw tight it will leak there is an adjusting nut in middle of cap

Toby Roe's picture

Posts: 118

Date Joined: 01/02/10

Thanks Tomkat, I have seen

Mon, 2012-01-23 13:58

Thanks Tomkat,

 

I have seen that nut but didn't realsie what it was for. 

dagree's picture

Posts: 660

Date Joined: 08/12/07

Double thanks Tomcat....

Mon, 2012-01-23 20:09

Mine does the same and I thought the screw was a breather... Just goes to show one must check things out and make sure

Looks like an Oz Day job before heading to Busselton on Friday!!

____________________________________________________________________________

Cheers,

David (AKA Grumps)

Location: Heathridge.  Toys:  120 Series Prado ... 5.3 Stacer Seamaster/Merc 90HP.

Toby Roe's picture

Posts: 118

Date Joined: 01/02/10

I compressed the O-Ring as

Tue, 2012-01-24 10:12

I compressed the O-Ring as much as possible yesterday arvo but found I was still having the same problem so I had a closer look at the top of the reservior itself.  It looks like the cap is a cam lock arrangement (as opposed to threaded) and that the plastic on mine is worn.  Oh well, I will call the Merc dealer today to quote a replacement but given what I was charged for the pinch weld between the upper and lower cowlings I may have to put up with the green stains in the engine well.

Cheers

Toby

Posts: 614

Date Joined: 24/02/11

Toby

Tue, 2012-01-24 10:27

One more thing to befor you buy loosen cap off and turn the O ring around the cap is not seal the O ring is

Toby Roe's picture

Posts: 118

Date Joined: 01/02/10

Hi Tomcat,Could you please

Tue, 2012-01-24 11:00

Hi Tomcat,

Could you please repost as I don't understand what you are saying.

 

Cheers

Posts: 614

Date Joined: 24/02/11

Oil

Tue, 2012-01-24 11:41

Pm sent