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Does anyone ever seam weld the chassis rear forks for strength?

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bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 ·

#811949
Or would it just weaken them with the heat treatment imposed by the welder?

Because if i remember right ,they are only spot welded aren't they...

regards,
Christopher.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!

Birdman Wolfsburg Wizard

428 posts · joined May 2010 ·

#811952
I have read about people doing it and have also seen plating kits to box them up but I would also be interested in hearing of some practical experience?

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 ·

#811990
Would you stitch weld them if you were going to do it?

Newt
It is as it is - If you didnt enjoy today, you've missed the opportunity.

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#811991
yep I seam weld mine.............and then use a K Bar kit for support.


OZ Towdster Keen to finish some projects

1,921 posts · joined Dec 2003 ·

#811997
Chris yes it is a good idea and i would add the benefit of K bar or as a Baja just build it into a good engine cage to support the forks from trying to torque down
Don't let body work get in the way of real suspension travel

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#812000
yep its a good idea. I plan to do mine as soon as i can fine a dam swing axle type 3 sub frame so I can haz some frame horns in the first place. 😂

i also going to tig all the seams in the rear end of the body around where the sub frame bolts on.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 ·

#812230
As a thought, when you seam weld them- do you end up buring the paint off the inside and open the way to rusting?

Newt
It is as it is - If you didnt enjoy today, you've missed the opportunity.

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#812244
depend on how much heat you use. If you are any good with tig, then should be no problem at all. Most newer tigs have a pulse setting which is for heat control.

Pulse is a no brainer setting for those who aren't skilled enough yet to take full advantage of the slope up/down feature.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 ·

#812250
Thanks for all the help guys 👍

At the moment its only me and my trusty arc... the Mig needs to go in for a service.
That'll do 🙂.

I'll park it on a slope and put a few litres unscented fish oil in there lol...
Thats if there really is... an 'unscented' fish oil.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#812251
Newt wrote:As a thought, when you seam weld them- do you end up buring the paint off the inside and open the way to rusting?

Newt
You betcha

This has got to be the biggest car killer out there, even with a pro job, it is often left bare metal behind the repair or welding job, and yep....it rust's like a beauty!!!!
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 ·

#812377
I guess the same would apply if you were plug welding on new pan halve's

Newt
It is as it is - If you didnt enjoy today, you've missed the opportunity.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#812397
Yeah Newt, plug weldind pan 1/2's or any spot weld type repair has it's own set of issues. To get a decent weld, both surfaces need to be clean bare metal, then when fitted together, there is an area between the two panels where rust can't help but form, two panels of bare metal touching each other and definately open to air and moisture. The only options are protect the metal with weld through primer before welding, seal the join after welding and using a non hardening, capillary acting rust preventative to get into the area, even where you can't see, I do all three on my jobs...... I hate rust and I dislike repairing it, but even worse, I hate repairing it where it's been repaired before.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 ·

#812509
Matt

Ever use penetrol to get into those nooks and cranies?

Cheers

Newt
It is as it is - If you didnt enjoy today, you've missed the opportunity.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#812528
Not personally Newt, I think it may set (dry and not stay liquid).

My fav is a home brew, 60/30/10, fisholene/new engine oil/diesel.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE