stichill99
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Do you not find the casting lets oil seep through after welding? I always find it alters the alloy in some way to make it porous.
It held water then brake cleaner should be fineDo you not find the casting lets oil seep through after welding? I always find it alters the alloy in some way to make it porous.
Whenever I tried oxy acetylene alloy welding I just made a larger hole.Nice job.
Back in the 70's a guy wandered into the small engineering firm I worked for with an Austin Maxi gearbox. He had gone over a high kerb and stoved the bottom in, some bits had actually broke away. I repaired that with oxy-acetylyne ally weld. No distortion and it ran for years like that.
Some sumps are made of pot metal that will not weld, you get tiny spider cracks through it. I tried a Renault sump last year and could not get it to stop cracking. He tried it on the car anyway with a load of sikaflex, it didn't work.Do you not find the casting lets oil seep through after welding? I always find it alters the alloy in some way to make it porous.
did it with gas welding a few times now over the years, first time was the same blew right through, then tried it slower and sneaked up on it, low and slow flame worked better I found. Bit like brazing technique, build up the heat gently, and don't hesitate to take the heat away if it's geting too hot, and just work it round the joint, then flow it all together when there was enough material. I actually prefer gas brazing to welding, nice and slow, find it almost therapeutic.
Errr, are we drifting into the realms of marital advice?
He was selling the same rods at the NEC classic car show a couple of weeks ago, enough heat would have been the issue with that sump.He was just pointing out an alternative.
I might have gone for the patch piece and attempted MIG as I don't (yet) have an AC TIG - or had a go with some aluminium brazing rod I bought from a Swedish guy at a car show a decade ago (it worked very well to make additions to a thermostat housing) but I think I would struggle to get to get the heat in it.
Or even bolted on a cover plate with a gasket!