Date: Thu, 2 Dec 1999 11:43:40 -0500
Reply-To: Bulley <gmbulley@BULLEY-HEWLETT.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Bulley <gmbulley@BULLEY-HEWLETT.COM>
Subject: Re: Where to buy a balanced engine? was: Engine balancing
I'm sure there is, but the shipping cost of a motor from Boston to San
Diego won't be all that different from the shipping cost from Portland to
San Diego. I've hear the number $150 to ship a motor coast to coast. If
that's the cost of quality, and keeping your hands clean, it ain't all that
much. :)
G. Matthew Bulley
Bulley-Hewlett
Corporate Communications Counselors
www.bulley-hewlett.com
Cary, NC USA
888.468.4880 tollfree
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-----Original Message-----
From: Davidson [SMTP:wdavidson@thegrid.net]
Sent: Thursday, December 02, 1999 10:53 AM
To: Bulley; vanagon@GERRY.VANAGON.COM
Subject: Re: Where to buy a balanced engine? was: Engine balancing
Any place to buy a balanced engine on the west coast?
Bill
90 Westy Syncro
-----Original Message-----
From: Bulley <gmbulley@bulley-hewlett.com>
To: 'Davidson' <wdavidson@thegrid.net>; vanagon@GERRY.VANAGON.COM
<vanagon@GERRY.VANAGON.COM>
Date: Thursday, December 02, 1999 7:49 AM
Subject: Where to buy a balanced engine? was: Engine balancing
>I think Boston Bob of Boston Engine does, which happens to be in Boston.
bostneng@fcl-us.net There are others, too.
>
>G. Matthew Bulley
>Bulley-Hewlett
>Corporate Communications Counselors
>www.bulley-hewlett.com
>Cary, NC USA
>888.468.4880 tollfree
>
>-----------------------------------------------------------------------
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>Get your FREE semi-private E-mail account, use your computer at work.
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>-----Original Message-----
>From: Davidson [SMTP:wdavidson@thegrid.net]
>Sent: Thursday, December 02, 1999 10:41 AM
>To: Bulley; vanagon@GERRY.VANAGON.COM
>Subject: Re: Re: Engine balancing
>
>Is the anyone who rebuilds 'balanced' engines professionally? ... like
where
>could I buy one if I don't have the skills or patience to do it myself?
>Bill
>90 Westy Syncro
>-----Original Message-----
>From: Bulley <gmbulley@BULLEY-HEWLETT.COM>
>To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM>
>Date: Thursday, December 02, 1999 3:29 AM
>Subject: Re: Engine balancing
>
>
>>-----Original Message-----
>>From: John Rodgers [SMTP:inua@SCOTT.NET]
>>Sent: Wednesday, December 01, 1999 11:47 PM
>>To: vanagon@GERRY.VANAGON.COM
>>Subject: Engine balancing
>>
>>Can anyone explain to me the process/procedure for balancing the
>>internal parts of an engine....pistons, rods, etc, and dynamic balancing
>>of the entire rotating assembly.....pistons, rods, crank, flywheel and
>>clutch plate. How do they do that on automotive engines?
>>
>>Yes, someone can. I am one who can, and will.
>>
>>Do machine
>>shops literally grind a little material off the piston skirts or some
>>other place until the pistons match the lightest one in the bunch?
>>
>>Yes.
>>
>>Is it similar for rods.
>>
>>Yes.
>>
>>Where is the typical location to remove material?
>>
>>For rods, not only do they match the members of the set one to another,
>>they also match to weight of the rod end-to-end. If you imagine a rod
being
>>shaped roughly like the classic "dog bone" (femur) they balance the ends
to
>>be identical.
>>
>>What considerations must be given in each case?
>>
>>Not sure I understand the question. Basically, anything that spins, or
>>reciprocates in a motor is a candidate for balancing. Machinists know
where
>>they can, and cannot take off metal.
>>
>>How would one balance a crankshaft?
>>
>>One would take it to a machine shop, where it would be mated with the
>>flywheel, clutch, & clutch cover, then spun on a machine (like a tire
>>balancer). The educated machinist use the figures from the machine to
judge
>>where to mill off metal in judicious locations, like forge marks, and
throw
>>ends.
>>
>>And where would the metal be removed?
>>
>>As above.
>>
>>And what do you look out for?
>>
>>Not sure what you mean. Look out for shops that could get to it
>>immediately, or that predominantly have tractor parts, or bicycle parts
in
>>the shop. Look for other VW motors. Talk with the machinist.
>>
>>Years ago <<<snip>>>>
>>
>>This service runs anywhere from $50 to $150. I paid $100 here in Raleigh
at
>>the renowned T-HOFF. You may be interested in a counter-weighted crank,
>>which further eliminates vibrations/harmonic imbalance in your motor.
There
>>is a little more information on my website about motor balancing/CW
>>cranks... http://www.bulley-hewlett.com/VWindex The dollar figures I
quote
>>there are guesses (and I say it). The cost of a CW crank was $350 for my
>>motor, and as I said, my balance was $100.
>>
>>Good luck, it is the best money you will spend when rebuilding.
>>
>>G. Matthew Bulley
>>Bulley-Hewlett
>>Corporate Communications Counselors
>>www.bulley-hewlett.com
>>Cary, NC USA
>>888.468.4880 tollfree
>>
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>>Get your FREE semi-private E-mail account, use your computer at work.
>>
>>
>>-----Original Message-----
>>From: John Rodgers [SMTP:inua@SCOTT.NET]
>>Sent: Wednesday, December 01, 1999 11:47 PM
>>To: vanagon@GERRY.VANAGON.COM
>>Subject: Engine balancing
>>
>>Can anyone explain to me the process/procedure for balancing the
>>internal parts of an engine....pistons, rods, etc, and dynamic balancing
>>of the entire rotating assembly.....pistons, rods, crank, flywheel and
>>clutch plate. How do they do that on automotive engines? Do machine
>>shops literally grind a little material off the piston skirts or some
>>other place until the pistons match the lightest one in the bunch? Is it
>>similar for rods. Where is the typical location to remove material? What
>>considerations must be given in each case? How would one balance a
>>crankshaft? And where would the metal be removed? And what do you look
>>out for?
>>
>>Years ago I used to balance cranks and aircraft propellers some. The
>>cranks would be put on a knife edge device and if something was not
>>right it would roll right over with the heavy side down. Propellers same
>>way. A stub shaft was mounted through the hub assembly an the whole
>>thing set on a knife edge. It would always rotate to heaviest side down.
>>In some of the propellers you would add lead wool to hollow bolts to get
>>the balance right, or add or remove lead washers in certain parts of the
>>propeller.
>>
>>But i have no idea how it is done in the automotive world.
>>
>>Any input would be appreciated.
>>
>>Thanks,
>>
>>John Rodgers
>>"88GL driver wannabe
>>
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