[SEL] Cracked Head/Vee grinding

[Elden DuRand]

Jerry:

Just get a solid carbide rotary file for the die grinder.  I've used 'em a few times and have had no adhesion problems.

I do have some of that aluminum solder stuff you occasionally see at flea markets.  They say to NOT use steel wire brushes to clean the surfaces of the aluminum before soldering.  Only use brass or bronze bristle brushes.  I've used that stuff and it works reasonably well if you can get enough heat to the area.  

Take care - Elden
http://www.oldengine.org/members/durand 

> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com]On
>  Behalf Of Jerry Evans
> Sent: Saturday, January 24, 2009 12:42 PM
> To: sel at lists.stationary-engine.com
> Subject: Re: [SEL] Cracked Head/Vee grinding
> 
> 
> 
> >From: Germoamer at aol.com
> >Subject: Re: [SEL] Cracked Head
> >
> >Joe,
> >
> >I would clean out the crack with a die grinder 
> and use JB Weld in it.   I
> >have done this on several heads with good 
> results heating them up to 
> >boiling  and
> >never leaked.  Think of it this way, if it does 
> not work, you have lost
> >nothing since you just clean it out again and 
> then have it welded.
> >
> >Tom  Schmutz
> 
> Hi Tom,
>          This answer is not specifically to your 
> post as you are using JB 
> Weld. It's more for those who are going the 
> welding way but you mentioned 
> "die grinder".
> 
>           I'm no expert but have always been told 
> NOT to use a grinder (of 
> the abrasive type) to vee out a groove for cast 
> iron welding as the 
> abrasive (carborundum??) particles left behind in 
> the metal may cause 
> problems with the weld. I've always been told to 
> only use a file!
> 
>          Could you guys give us the benefit of 
> your knowledge on this subject ?
> 
>          Thanks from me who has just had a lovely 
> day because I decided to 
> "bugger" everyone else today and do some engine 
> related work for myself. 
> Nothing fancy, just making a tubing frame to hold 
> the little Vincent engine 
> but it was "for me" for a change !!
> 
> 
> Keep the revs up (or down)
> Jerry Evans
> Near Johannesburg in Sunny South Africa.
> Etched Brass Engine Plates made to order:
> <www.oldengine.org/members/evans/plates/index.htm>