V8 Timing belt change and verification by frequency

Hello all,
I'd appreciate your input on the following:
Changed the belt on a QV and went for the Ferrari method, torqueing the tensioner (Hill) bearing down at 42ftlbs on the position where the spring pushed it in the furthest.
A friend, that did the belts on his 360 helped and tried out the GATES belt frequency app. He had measured around 200 Hz on his installation.
Now...mine came up between 75 and 120Hz, as you would expect, there is going to be variation depending on where you are on the rotation ( valve spring to overcome or helping, compression).
Questions: If you have, what are your frequency measurements (ideally there will be plenty of similar values so others can later use them for reference)?
I do turn the crank with a ratchet and observe something like a "stick and slip" effect...takes more moment to brake loose and then once in motion the resistance is more constant...again to be expected...but the belt responds with being tight and then not...should I book it under "you are doing it by hand...later it will just run.." or should I be concerned look to get more force from the tensioner spring?
And since we are all talking about this now...the friend push in the tensioners "all the way", himself now contemplating he has maybe done too much of what was thought a good thing. I argued that yes...if you actually have the spring all compressed and by chance picked the point with the least resistance (from the cams)...if you hit another one with more resistance all that can now give way is the elasticity of the belt itself (not to speak of the overall increased load on all bearings involved)...again your comments appreciated.

Cheers
Konrad

 

Hi Steve,
thank you for the request on clarification...I mean with the tensioner bearing bolt still loose going around 2 turns of the crankshaft and finding the position where the tensioner spring pushes toward the belt the furthest, the option you mentioned first.

 

Love it, so anyone with frequencies and engine?
The link includes the same call for a database would be helpful mine stands as 1983 QV engine 75Hz low and 120Hz high.
Thanks for the clarification on the 360 tensioner

 

The spring in the tensioner provides the force, watching (and torquing down) where this force is able to move the belt furthest "inward" would ensure that there is only points with "more" force for the rest of the circumfence. I doubt that would be #1 TDC coincidentally,
cheers
Konrad

 

Good atuff,
finally got around checking it,
if TDC is clutch/flywheel marker AND mark on oil filler cap...rear bank showed furthest travel around 210 degrees later
front bank is at 360+90 degrees later. So the 20 degrees after OT as per bulletin does not appear to be furthest inward travel on mine.

Got me thinking about the system...as long as the spring is not getting stiffer (how would that be?)...you can't really put on the belt too tight, because it's always the spring tension and nothing more (only a massive variation in travel and it bottoms out).
cheers
braq

pS: English is not my first language....let me try again....the spring sets the minimal tension...and then through the variation over 2 crankshaft rotations there is some additional compression of the spring...but that should not be a lot (i'd say 2mm travel).