welding rear lower wishbones

[spalders]

Hi folks I've just welded up one rear lower wishbone. BUT even though I tacked it and made sure that it was ok in the jig - once I fully welded the narrow end was pulled in 5mm as the weld cooled... Perfectly flat with no twisting in the other axis. I fully welded the bone out of the jig. Has anyone else had a problem with this?

Spalders

[mark]

Mine moved about 3mm when i did mine, so i put one side of the wishbone in the vice (nice and tight) and then put a bar through the opposite bush tube and persuaded into shape

Be carefull though i think someone on here done the same thing and the pry bar slipped out and whacked em on the head

Hope this helps

[AshG]

bottle jack is what you need. or a threaded bar and some big nuts and washers.

[Bonzo]

Another vote for either a bottle jack or threadded bar & washers

I find the problem with using a bar in the bush tubes is that if any amount of force is used, the bush tube may become out of shape !!

It is quite normal for the welds to pull the material on this type of structure
If It was held rigid in a jig, it'll still spring when it is released.

[mark]

I agree a jack or the threaded bar and washers is a better idea

Saying that it only took me about two minutes to sort mine with a bar before they went to powdercoaters and it didnt damage the bush tubes whatsoever, but i should have added above that the bar was a very good fit in the tubes.

[Bonzo]

Wasn't dissing your sugestion Mark

I must admit, the good ole bar is normally the first tool I reach for

Unlike my 4ft tyre lever, your bar is probably a better fit in the bush tube & unlikey to deform it

[spud69]

Originally Posted by mark

I agree a jack or the threaded bar and washers is a better idea

Saying that it only took me about two minutes to sort mine with a bar before they went to powdercoaters and it didnt damage the bush tubes whatsoever, but i should have added above that the bar was a very good fit in the tubes.

Can i ask which powdercoaters you are using Mark, i got friendly with one in Brenda Road, Seaton. Got some good prices but the finish isn't 100%.

"If in doubt get the bar out". Same happened with mine a few mm, pulled it out again and they where fine..