Leaking oil Burner

abnormalnorman

Hi,

Iv noticed a leak in my burner.

Around the pump area. About 1 drop every minute, when off.

Leak is near the pump.


See attached photos, which shows the drop building up before it falls (highlighted within red circle)

Any idea where this is coming from, or how best to repair? Is it a seal or gasket of some sort, or a pipe connection / rubber? Or maybe i just need to squeeze / tighten something?

Any advice much appreciated

Needles73

There is an o-ring between the joint. Probably needs to be removed and replaced. You could check that the Allen key headed bolts are tight. Has anyone tried to seal it previously? Just looks very red ? Make sure you put suitable container under leak until fixed properly. Kerosene/diesel can do serious damage.

JamesM

It's not likely to be that seal, unless that cover has been removed at some time. The large plug to the right of the red marker ring is sometimes not fully tightened from the time that the burner is installed. It can be quite a while before it starts to leak and looks a bit wet. try to tighten it. Otherwise it may be from one of the allen bleed screws. If you are sure that it is the cover, try to tighten the 4 allen screws holding the cover in place.

abnormalnorman

Needles73 wrote: »

There is an o-ring between the joint. Probably needs to be removed and replaced. You could check that the Allen key headed bolts are tight. Has anyone tried to seal it previously? Just looks very red ? Make sure you put suitable container under leak until fixed properly. Kerosene/diesel can do serious damage.

Thanks Needless73 . Is that the O Ring marked No. 19 in your sketch your talking about?

Is there a part number for this anywhere - and would any plumber have it?

Needles73

abnormalnorman wrote: »

Thanks Needless73 . Is that the O Ring marked No. 19 in your sketch your talking about?

Is there a part number for this anywhere - and would any plumber have it?[/

Yes. Heatmerchants or many plumber supplies would have it. Any decent plumber can get it. Exact part depends on burner model. But perhaps check post from JamesM to make sure it’s nothing else ?

abnormalnorman

JamesM wrote: »

It's not likely to be that seal, unless that cover has been removed at some time. The large plug to the right of the red marker ring is sometimes not fully tightened from the time that the burner is installed. It can be quite a while before it starts to leak and looks a bit wet. try to tighten it. Otherwise it may be from one of the allen bleed screws. If you are sure that it is the cover, try to tighten the 4 allen screws holding the cover in place.

Thanks Jamesm.
By "large Plug" - I take it your referring to the plug iv marked as No. 1 on attached picture?

Whats Number 2 for? By "bleed screws" - you mean number 3 , yes?

Anyone know what nuts 4 and 5 are for - are these to remove the pump?

JamesM

The plug is no. 2. 4 & 5 are for holding the pump in place. no. 1 is the oil line connection - make sure that it is tight. Make sure that no. 3 is tight - the bleed screw is actually at the tip of that fitting. there is another bleed screw on the front of the casing that Needles73 mentioned. Sorry for late reply.
Jim.

Edit: wipe the whole pump down and try to see where the leak starts when you run it.
Edit 2: There is also the chance that the seal on the drive shaft is leaking - then you will need a new pump and the whole burner will need to be set up and adjusted.

abnormalnorman

thanks all.

i squeeze the 4 alan-key nuts, and problem solved.

The plumber had quoted €700 to my grandparents to repair this (in there late 80's), and also mentioned / recommended a new boiler at €2500.

it unknown to god whats going on in the country!!!!