posted 12 September 2003 08:09 AM
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Dave, Please forgive me for digressing a bit in your thread. But I would like to expound a bit if I may on E-clips, bellcranks and pullrods.
To begin, the LeGrande I purchased did NOT use the present 14 hole bellcrank; as is now standard on all Emmons' Legrandes. Rather, it used an older version of their present 4 hole bellcrank; that they still use in a few limited applications.
Immediately I detected a problem with these four hole bellcranks. Firstly, there was NOT enough holes to allow perfect balancing* of multiple pulls on the same crossrod. Secondly, other pull rods would often rub (scrape) on the setscrew shoulder that fixed the rod to the swivel in the bellcranks.
Emmons had just come out with their 14 hole bellcrank when I purchased mine. Sadly, I elected to go with the 4 hole based on incorrect imformation from my best friend.
After I realized my terrible blunder, I was able to get 50, 14 hole bellcranks at a discount (still a lot of money), to make up for my mistake. I thought then and now, that the 14 hole bellcrank is the single greatest improvement to the PSG bar none, since its inception.
Because it is the only bellcrank (except the Linkon which has other major problems), I know of that almost (not quite) gives one infinitely adjustable balance capability. But there was a problem with them. And that concerned that infernal E-clip. IE, getting that thing off and on can be a real pain.
Plus, if one wants to add a pull rod, cutting that groove is another anamoly. So concerned about this, I talked at length to the late Ron Lashley about why he used it.
As Ron always was, he thought my question over for a very long time and then he told me why he could not come up with a better way. After studying it and realizing WHY he used them, I have been unable to come with a better way to hold that rod. I have read all the ideas, but none serves the real purpose that E-clip does. All other ideas I have seen create problems the E-clip method does not present.
So, I believe it is going to be part and parcel for a long time. We will just have to order rods that are pregrooved or cut that groove somehow with a dremel tool, or a small lathe, etc.
Incidently, bending that pullrod is more than it might at first appear. The exact location of the bend; AND the sharpness of the bend is critical in making that bellcrank live up to its greatness. In other words, a bend in the wrong place or a bend that is not sharp causes problems a player should not have to deal with. Also, the location, diameter and width of the groove is very important.
My point in all the above is to advise caution IF one wants to maintain that silky smooth action that spells "Emmons' LeGrandes". Which are truly GRAND PSG's.
carl
* One of the most important requirements on any PSG; to attain smooth pedal and knee lever action; is to have perfectly balanced pulls on its pull rods. NOTHING lends to this smoothness like perfect balancing.
It is a very subtle thing, but ohhhhh how good it feels when ALL changes begin and stop at the precise same time.
So when seeking a new PSG, please don't overlook this very important thing. You will be sooo pleased, if you take this into consideration; after you enjoy the pleasure of this often forgotten aspect of our beloved instrument.