sump welding

[whits]

my 300 tdi disco has a rusty sump and its started weaping oil its only a small patch so do you think its safe to weld a plate over the rust with the sump in place full of oil as the oil will disperse some heat or should i take it off and do it empty

[Dr Neil]

you'll need to remove it so as you can clean up the metal and get rid of the oil to ensure a good weld, especially if you are going to mig it!

[ben_haynes]

you can weld it in place but drain the oil out, we do regularly,

[whits]

thought so, i was hopeing for the other answer but there we go
thanks for the advice . mark

[mentalmoshio sophs V8i]

 :roll: how much are second hand sump , sorry welded engines me our trouble to me . ie just look at the stag v8 . if it fails big time bang goes the engine

[ben_haynes]

there are companies that weld engines, Cylinder heads get welded if they Crack and Blocks that crack or have Conrods through the side get welded obviously by Specialists but a sump is like a sill, we weld Fuel Tanks at work, obviously not with Fuel in and Full of water for extra safety and a fire extinguisher at hand as usual

[Range Rover Blues]

I've done it a couple of times and it's a PITA.  MIG can be porous and oil will find the tiniest gaps.  Possibly you'd be better off brazing or soldering it.  Tack a patch on with MIG then lead it/braze it.

Ford "big wing" sumps were often made this way.

[Skibum346]

Isn't this just postponing the inevitable?

If one part of the sump is porous... surely other parts won't be far off?

if t'were me I's be sourcing another sump.   :-k

[mentalmoshio sophs V8i]

Isn't this just postponing the inevitable?

If one part of the sump is porous... surely other parts won't be far off?

if t'were me I's be sourcing another sump.   :-k

thank u excellent input , i know what ur mean ben but for a sump it just seems alot of work when bolt off and bolt on with a new seal and jobs a good un

[whits]

problem with getting a new sump is every where ive tried they say dealer only and they are on back order from landrover, its only ment to be a temp fix anyway
thanks mark