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cracked engine bits

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DIY-DUB Custom Title Time!

1,591 posts · joined Apr 2004 ·

#586373
is welding up cracks in the side of a piston a bad idea? A guy i work with did this to one of his, just wondering if it would have any negatives...
and could you do this to other bits aswell?
Using a tig to do it mind you.

xornge666x Wolfsburg Wizard

460 posts · joined Sep 2006 ·

#586437
yes... bad idea.
buy new ones, if you cant afford new ones.... wait until you can!!

You should weld your body part sheet metal, and thats probably about it, unless you are a machine shop doing welded counterweights or something.
At 300 a set of barrels and pistons why weld them????

DIY-DUB Custom Title Time!

1,591 posts · joined Apr 2004 ·

#586879
these were for a ford... and its an experiment, just wonderin if anyone else knows of this being done, and with sucess or not...

13bwagon Officially Full-On Dubber

316 posts · joined Nov 2006 ·

#586888
hell yeah if your a good as welding as me and going to sell the car soon (to some poor sap) hehehe then
JUST DO IT
BUY A REAL BUG A PRE S BUG...

Sulla Seriously Crusin Dubber

149 posts · joined Apr 2005 ·

#586920
13bwagon wrote:hell yeah if your a good as welding as me and going to sell the car soon (to some poor sap) hehehe then
JUST DO IT
13bwagon - You are in need of help!

Your attitude is disgusting!

makes me want to puke!
:puke



[ Edited on 23/4/2007 by Sulla ]
1963 6 volt Beetle - Driver
1976 Kombi Camper - Driver
1963 Beetle 6 volt - Project
1964 Beetle 12 volt - rustbucket for parts
1975 Kombi Shell - parts

I drive VW aircooled to save water AND I always shower with a friend!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#586992
Where abouts on the piston is the weld ??? skirt or top ??? inside the crown

Whats the weld for to fix a crack or add weight or boost compression ??
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

koolkarmakombi enkarmarising

2,078 posts · joined Jun 2003 ·

#587008
You can weld pistons, need right rods, heat treatment, needs to be remachined, will be difficult to get expansion rates the same.

Far far cheaper to buy a new one.

I have seen it done on a broken skirt on an old stationary engine that the pistons are no availabe and weird shape to remake. Was for a resto so was necessary.

For a ford you would be wasting time/$$$
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