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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: conybeare on June 15, 2013, 03:35:27 PM

Title: Oil leaking from water/oil pump (not out of weep hole)
Post by: conybeare on June 15, 2013, 03:35:27 PM

Hello Motobrickers,

I replaced the seals in my water/oil pump last year and now I am getting an oil dribble out of the hole in the pump casing that the oil pressure switch wire is routed through. Am I correct in assuming that this is a problem with the seal between the oil pump casing and the engine block? No oil is coming out of the weep hole.

Thanks!

-CB

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: Inge K. on June 15, 2013, 04:32:20 PM

You're correct about a leak between the oil sump and pump housing.
Keep the mounting surfaces clean, dry and oil free.
Use a sealant that can withstand the oil pressure (I've used Permatex black RTV).
Give the sealant time enough to cure, before starting the engine.

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: Scott_ on June 15, 2013, 08:41:46 PM

Also take note and be careful of the "half moon" oil channel on the block side as it's really easy to get too much sealant applied and block this opening.
I remember seeing a picture of this but can't remember where so I can't post it or a link at the moment, like all else it will come to me in time.........Old timers setting in...... :hehehe

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: Inge K. on June 16, 2013, 05:23:59 AM

Good point, Scott.........when this hole is blocked, it could be the reason that a leak starts in this area.

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: conybeare on June 19, 2013, 04:04:10 PM

Thank you very much, Inge and Scott!!

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: billday on June 19, 2013, 09:04:59 PM

I have never been able to figure out where the weep hole is. Can somebody put up a picture that shows it?

Thanks, Bill

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: Inge K. on June 20, 2013, 04:26:35 AM

Quote from: billday on June 19, 2013, 09:04:59 PM

I have never been able to figure out where the weep hole is. Can somebody put up a picture that shows it?

Thanks, Bill

Title: Re: Oil leaking from water/oil pump (not out of weep hole)
Post by: billday on June 20, 2013, 01:52:38 PM

Thank you, Inge!                 Bill