Re: To balance or Not - It's Your Engine -

["lumina333" <lumina3@xxxx>]

Thanks for the advice, Brien, Doc, & ALL! The assembly will be sent 
to a seperate Balancing Shop before I get it home. Sounds like it is 
well worth the $150.
--- In BaadAssGremlins@xxxxxxxxxxxxxxx, "Brien Tourville" <hh7x@xxxx> 
wrote:
> ! YES ! 
> 
> Without a doubt - dynamic balancing is mandatory for
> an Enthusiasts Vehicle - should they have the choice .
> 
> First - determine what RPM you spend the most time at -
> given the area you live in .
> 
> So figure you tool around most of the time @ 2,000RPM.
> 
> You give the Balance Shop that RPM - they will balance
> the engine for zero harmonics at that setting .
> 
> The Harmonic of say 2,000 RPM is 4,000 RPM .
> 
> So - coming out of 2,000 RPM - the engine will get 
> smoother again - the closer to 4,000 rpm you get .
> 
> 
> Make SURE that this shop is a Genuine Balancing Shop !
> 
> You DOn't want "Dill the Mill" belt sanding the rods to
> match weights by "Eye" ........... and a well used "Dope Scale" .
> 
> 
> There are companies that just do this alone - and is Important
> enough to me - to seek out a Really Good Balance Shop !
> 
> 
> Without a proper balance - your engine will vibrate -
> and once the engine is together - that is the way
> it stays ......... half assed and showing it .
> 
> I had one engine I built balanced by E.E.Lindskog in
> Bedford Mass.
> 
> They do Aerospace components primarily .
> 
> The motor turned out to be Incredibly smooth-
> and since I had them lighten it while they had 
> it there - very "Blip Quik" - when you tapped
> the throttle. 
> 
> Knife Edge the Crankshaft counterweights as well.
> 
> 
> To the Shop you Choose to Balance the Internals :
> 
> Bring :
> 
> Crank Pulley / Crank Pulley Bolt & Washer /
> Harmonic Dampner / crank / bearings /
> rods / rod bolts / wrist pins / wrist pin locks / pistons /
> one ring set / torque convertor / flex plate with all
> bolts & washers & locks .
> 
> 
> Have all this rotating mass - balanced .
> 
> If this is a Gennie Balance Shop - 
> 
> I would ask for them to lighten the crank - so
> they will use less balancing material & the 
> engine will spin free-er and spin up / down 
> quicker .
> 
> That is what my 401 will be getting ........."The Werks" .
> 
> Been there and KNOW the Difference !
> 
> 
> 
> 
> Brien.
> NEW YORK
> 
> 
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> 
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> 
> Message: 2
> Date: Thu, 18 Mar 2004 20:56:00 -0000
> From: "lumina333" <lumina3@xxxx>
> Subject: To Balance or Not to Balance
> 
> When I take my engine block, rods, and crankshaft to the machine 
shop and
> buy new pistons, should I spend the extra money to have the parts 
balanced
> as a rotating assembly or not?