riello 40 air bleed screw leak

king2

So the Sisters riello 40 burner ran out of oil again so I had to open the air bleed screw on the pump again. There is a small leak from the screw after tightening. I turned off the oil to the burner and removed the screw altogether and retightened it but theres still a slight leak from it. Any remedy for this?

cruiser202006

Did you refit it with the small washer?

king2 wrote: »

So the Sisters riello 40 burner ran out of oil again so I had to open the air bleed screw on the pump again. There is a small leak from the screw after tightening. I turned off the oil to the burner and removed the screw altogether and retightened it but theres still a slight leak from it. Any remedy for this?

king2

cruiser202006 wrote: »

Did you refit it with the small washer?

There was no small washer when I removed it. There was a little black plastic seal on the end of the screw alright, is that what you mean?Thanks

cruiser202006

king2 wrote: »

There was no small washer when I removed it. There was a little black plastic seal on the end of the screw alright, is that what you mean?Thanks

A rubber seal??

king2

cruiser202006 wrote: »

A rubber seal??

Ya

cruiser202006

king2 wrote: »

Ya

That would be the pressure adjustment screw you took out. You'll need to get s service man out to replace seal and set oil pressure on it

king2

cruiser202006 wrote: »

That would be the pressure adjustment screw you took out. You'll need to get s service man out to replace seal and set oil pressure on it

Which one is the air bleed screw then? The burner is running ok

cruiser202006

king2 wrote: »

Which one is the air bleed screw then? The burner is running ok

There is a plug just below it. And one on side of pump also. Could be running fine but it won't be getting enough air to burn properly and will just spot up

king2

http://www.boards.ie/vbulletin/showthread.php?p=58327752

Just checked the manual, the screw I opened is labeled "vacuum guage connection" the pressure adjuster is a different screw on the other face of the pump

Paullimerick

Are you sure it was a 40

jimf

there on the riello 40 ok the little rubber washer is possibly lost or else squashed inside the port

Wearb

You might get away in short term by twisting a couple of inches of ptfe into a sort of rope and winding around the neck of that screw. It will need regular monitoring until you get proper seal.

I think I saw boxes of seals in Lidl or Aldi recently.

king2

Just to clear up earlier confusion this screw does not affect anything else does it?

agusta

king2 wrote: »

Just to clear up earlier confusion this screw does not affect anything else does it?

No,it doesnt effect anything else

agusta

If it were me,id wrap two to three winding of ptfe around the threaded part and groove it into the threads..,it will not leak afterwards

king2

agusta wrote: »

If it were me,id wrap two to three winding around the threaded part and groove it into the threads..,it will not leak afterwards

Thanks ya, was thinking that.

Wearb

agusta wrote: »

If it were me,id wrap two to three winding of ptfe around the threaded part and groove it into the threads..,it will not leak afterwards

That'll work, but just be careful not to introduce a free floating piece of ptfe into the pump chamber. It'll cause havoc.

king2

Wearb wrote: »

That'll work, but just be careful not to introduce a free floating piece of ptfe into the pump chamber. It'll cause havoc.

Wouldn't the Filter catch it?

Wearb

king2 wrote: »

Wouldn't the Filter catch it?

Most likely, but if it caught everything the nozzle filter would never get dirty and it does. Also I have seen lots of instances of filter damage from too aggressive cleaning. Probably a flat screwdriver puncture.