1989 540RHH Edge trem , dive only? - Jemsite
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post #1 of 7 (permalink) Old 12-22-2009, 08:57 PM Thread Starter
 
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1989 540RHH Edge trem , dive only?

Hey guys, just got my brand new baby and was taking in some first impressions and noticed the trem is dive only? It has been so long ago since I played my old 91 540R that I dont remember. Is this right?

89 should have the Edge trem and it looks like it does.

I guess I wasn't using the trem much in those days.

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post #2 of 7 (permalink) Old 12-22-2009, 09:32 PM
 
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Re: 1989 540RHH Edge trem , dive only?

Maybe the trem is way too low in the cavity giving you not much room to pull up? Also maybe the trem cavity is very shallow?
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post #3 of 7 (permalink) Old 12-22-2009, 09:37 PM
 
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Re: 1989 540RHH Edge trem , dive only?

Not originally. It was intended for a fair amount of pull up. Over time, the neck and body both give way to string tension. The body and mostly the neck pocket get a little "bow" to them, not unlike the neck. With the neck, you may adjust the truss rod to maintain straightness, but right where the neck meets the body, there's a little "bending" that occurs. All of this means that over time, you're Edge will need to be lowered into the body a little to maintain the same action. That's why it bottoms out.

I have done two things to correct this: Recess the cavity deeper (not my favorite) or route a slight neck angle into the neck joint. I do that all the time to Ibanez'. The Basswood bodies are softer, and then "bend" more. That angled neck joint is also part of the issue. It's great, but it allows bending. When I re-cut the neck pocket I see all kinds of things that were there, like humps, bends, etc. The newly cut neck pocket is then perfectly flat, and therefore sits the neck better too.

Over time the neck pockets on the 540R's got a little deeper, as did the bridge routes, and ultimately they had the Low Pro Edge which had the deepest route. If you get a year where the lowered the neck pocket but not the bridge, then from the factory there would have been less pull up, but definitely "some".

Check the fountain blue Radius in the picture.
http://www.ibanez.co.jp/anniversary/...t_id=293&now=7
The bridge is way up off the guitar. Your HH began life lower than that, but you get the point.
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post #4 of 7 (permalink) Old 12-22-2009, 09:39 PM
 
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Re: 1989 540RHH Edge trem , dive only?

Also check in the back for a Backstop, if there's one in there, and it's set up against the trem block, it can make it feel like dive only. The good news is they're highly sought after!
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post #5 of 7 (permalink) Old 12-22-2009, 11:53 PM Thread Starter
 
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Re: 1989 540RHH Edge trem , dive only?

Thanks guys. Frank, I will have to reread what you wrote tomorrow. Way too tired to be talking about routing!!! Oh, no backstop (that was my first thought too) Just someone trying to go really low....
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post #6 of 7 (permalink) Old 12-23-2009, 12:08 AM
 
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Re: 1989 540RHH Edge trem , dive only?

No 540 radius or 540 saber's had deep cavity routing until 1990. All of these early models have shallow routing,I've personally owned many from both time periods and they've all been the same. It's documented in the catalogs. My only advice would be to shim the neck a little to gain some extra space so you can raise your trem a touch, though this won't give you the sort of room for some serious pull back whammy. Compare it with a 91 model and you'll see the depth difference ,twice as deep nearly.

Last edited by corey j grieve; 12-23-2009 at 12:22 AM.
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post #7 of 7 (permalink) Old 12-23-2009, 01:06 AM
 
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Re: 1989 540RHH Edge trem , dive only?

My 1991 440RHH does pull up, but not as much as my 1990 RG550. The trem cavity on the RG550 id deeper.
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