Mud-club

Vehicle & Technical => Discovery => Topic started by: whits on April 22, 2008, 21:50:42

Title: sump welding
Post by: whits on April 22, 2008, 21:50:42

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 :undecided:

Title: Re: sump welding
Post by: Dr Neil on April 22, 2008, 22:06:58

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!

Title: Re: sump welding
Post by: ben_haynes on April 22, 2008, 22:12:36

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

Title: Re: sump welding
Post by: whits on April 22, 2008, 22:14:33

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

Title: Re: sump welding
Post by: mentalmoshio sophs V8i on April 22, 2008, 22:51:48

 :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

Title: Re: sump welding
Post by: ben_haynes on April 23, 2008, 00:14:47

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

Title: Re: sump welding
Post by: Range Rover Blues on April 23, 2008, 01:06:32

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.

Title: Re: sump welding
Post by: Skibum346 on April 23, 2008, 11:17:39

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

Title: Re: sump welding
Post by: mentalmoshio sophs V8i on April 23, 2008, 19:32:39

Quote from: Skibum346 on April 23, 2008, 11:17:39

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

Title: Re: sump welding
Post by: whits on April 23, 2008, 20:14:41

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