[Shop-talk] Welding a cracked fan Blade

[Brian C Kennedy]

The two blade fan on my Model A broke and put a mighty dent in the hood and
bent it out of shape. I've heard people have been killed revving up the
engine when these fans break. Easy to believe from what I saw. I'd like to
keep the A original, but I like living better, so I replaced it with a
modern 4 blade that looks like crossed stampings. The two blade is an odd
construction. Hard to describe, but it does appear to be seam welded and
ground smooth. 
Brian
-- 
> From: "scottmryan at netzero.net" <scottmryan at netzero.net>
> Date: Sat, 6 Dec 2008 17:39:50 GMT
> To: <shop-talk at autox.team.net>
> Subject: Re: [Shop-talk] Welding a cracked fan Blade
> 
>  If you are at all careful, it should be fine, I balanced the fan I rewelded
> by putting extra metal on the other side. removing material from the tips of
> the blades should work fine too.I did have a water pump shaft break (on a 69
> merc 429)while I was up front revving it up trying to get the back barrels on
> a autolite 4bbl to kick in reliably (kicked in that time!) sheared through
> both fan belts,and cut most of the way through the radiator (about 20"
> circle)scared the hell out of me! this was not the fan I welded, it was stock
> (w/ a fan clutch) Scott RyanPS: I did have a fan clutch that lost it's
> bearings, and I thought thatwas going to shake itself apart (89 chev blazer
> v6)James F Juhas wrote:>Not as far out of balance when I lost one of six
> blades.  I thought the whole car was going to shake itself apart!>If carefully
> done, and ground smooth to finish, I would guess that the balance would be
> close to original, and perhaps it could then be >balanced with the judicious
> removal of material from the heavy side, like at the tips of the blades.>But
> then, all of this is why my fan remains in two parts as an art object and
> conversation piece.  And MGA fans are not in short supply: my >junk box turned
> up three more, but now I'm afraid to use one.>FRED E THOMAS wrote:>> The bad
> thing about welding a fan blade back on is the fan will now be >> way out of
> =="balance"==  "FT"
> ______________