Mitsubishi Delica Owners Club UK™

[spannerman]

i had what i thought was slight exaust leak so i gets out the gumgum to do the repair as i am cleaning the area with wire brush i noticed the exaust had split all the way round the weld on the flange .
i have been given use of a gas welder to weld it up (its great I've practiced most of the day welding bits of metal etc i want one)
so has anyone got any good tips before i start the job and turn my exaust into swiss cheese  

[Google]

[Keefe]

Yes, see this:-

http://www.MDOCUK.co.uk/forums/viewtopic.php?t=32198&highlight=

I wouldn't bother myself. you'll weld up the holes and others will appear soon after.
Tips for welding, have a squeezy bottle of water handy, just in case.  

My mate gas welds and he makes it look so easy. It looks like the weld has been squeezed out of a tube. Very neat.
I can weld but not as neat as that!

He once welded the suspension tops on my old Rascal and because I'd made the repair plates such a tight fit, he didn't need any welding rods.
He just stitched the plates to the body with the flame.  8-)
I had a go and blew holes everywhere!  

But don't stop practising, it's great when it goes right.

K

[spannerman]

funny you should say that the bits that were cracked needed no weld rod but i put some on anyway and that looked like it came out of a tube :D

[Soulman]

I haven't done any gas welding for many years now, however here's my 5p's worth, make sure you use gas welding goggles  8-) so you can see what your doing, and don't get any sparks in your eyes, use the correct pressure's for the size of nozzle you are using, you'll have to look them up i'm afraid as i can't remember them any more, adjust the flame so it's neutral, if the presure's are set correctly turn the acyetlyne control on the torch nearly fully open after you've lit it and then increase the oxygen until the white tail just disappear from the inner cone. Introduce the inner cone of the flame to the metal your going to weld, it needs to be about a couple of mm away and then create a molten pool equally on both bits of metal if you blow a hole through it straight away your nozzle is to big, get a smaller one and readjust your gas pressure, once you have a nice molten pool feed your filler wire into the pool and then move the pool forward and repeat, do not melt bits of filler wire off and let them drop into the pool as the will introduce porosity into your weld. You will find that the heat from the welding process will create a fair bit of distortion in the job so you will need to do a series of small welds called tacks over the distance to be welded to hold it all together before you join them all up. if you get a load of cracks and pops you may be either letting the cone drop into the weld pool or using an incorrect pressure. Remember practise makes perfect also if someone calls you whilst your welding don't turn around with the lit torch in your hand i've seen s few people minus eyebrows etc. because of that.  :D  

HTH


Chris

[unclebazwold]

Blimey Chris excellent post it was like reading a welding text book.
Bazza :D
ps note to myself chris can weld and lives half a mile away from me.
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Mine is black and silver it is the best colour.
Just remember when you read my replies i know nuffin..............

[Soulman]

Thanks Bazza, i spent the first half of my working life welding for the petro/chem industry so although it's been quite a few years since i did any, i still remember a bit. Re being a welder and only living half a mile away, i don't have the equipment eyesight or the inclination to be getting under a Deli and welding these days   , but if you bought yourself some kit i can show you what to do if that helps.  


Regards


Chris

[unclebazwold]

[Keefe]

     

[Soulman]

I don't think they make 'em that big Bazza  :D  :D  :D


Chris

[Fostlongstrider]

Oh yes they do!!































It's called a Gantry crane      
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Ian.

All the best from the East Riding of Yorkshire.
'93 L300 Super Exceed  Corse Gray over Grace Silver.Auto.

Flying Brick Supporter.

[unclebazwold]

[spannerman]

thanks for all the tips realy did help me as went out today and got the grinder on to clean up my mess and do it properly
it took awhile as the flange was a lot thicker than the pipe but once i got it all set right once melted i found it best to just keep going with flow until it was time to move due repositioning myself or burning myself or banging head under car etc.
job now done, so now il start saving for a new one, and they can fit it :D
must admit tho i did enjoy it exept for back pain later on must be geting old  

[AndrewD]

Got a Sealey 130 Turbo MIG with new spool (big) of wire and (naughty) a full medium BOC Argon mix bottle and regs with a solar powered automatic mask for £120 today!  8-)

Just want a plasma cutter now  
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Cheers

AndrewD

[buzr6mille]

Thank's a great price..
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2nd gear low and go go go!

It's A Shame That Stupidity Isn't Painful..

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