I have found what looks like a puncture hole in the side of the diff! Oil is all over the drive and the car stinks! Its a 2004 TD4, its done 85000 miles. Can this be welded up or will i need a new diff? Also can i drive it? Or do i have to get it towed to a Garage??
Cheers!
If its cast, I wouldn't have thort any welder would touch it, it's a bitch to weld at the best of times.
On the other hand, why not use some mesh and liquid metal? As long as its all clean it should work, we use it on engine sumps, so it's oil resistant.
#1 not true piece of cake welding cast
#2 rather African engineering there, will fail
From my experience cast is a pain in the arse. I only use MMA/SMAW, so that's probably why I find it difficult.
Why is it African engineering? Will it fail because you didn't think of it, or because you have done it wrong and it's failed in the past? All the sumps, and fuel tanks for that matter, have all worked fine for me.
Me thinks there must be some eastern European in you somewhere as we normally give them cracked blocks, heads etc when they go home for a week and they bring them back looking like newexpoxy does not stick to steel very well, The granular characteristic of steel is very fine and does not allow proper adhesion to steel, also there will be some oil in the pores of the steel, impeding the chemical reaction of epoxy to adhere itself.
the question do a search, keeps the PC bunch at bay
With cast iron proper preheat, interpass temps and post heat. stress relief are required for welding cast iron. Have welded cast iron heads and cast aluminium heads the were cracked from HFG and also a Cat 350hp 6 cylinder diesel that threw a rod out the side of the block.
Me thinks there must be some eastern European in you somewhere as we normally give them cracked blocks, heads etc when they go home for a week and they bring them back looking like new
Yes it smelled of gas, i had a pair of new tyres put on the back about a month ago, would this cause it to blow a hole in the diff?