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Re: [Healeys] schuttle shake

To: LSR <land-speed@autox.team.net>, drmayf@mayfco.com
Subject: Re: [Healeys] schuttle shake
From: "P.M. Pollock" <pollpete@ix.netcom.com>
Date: Mon, 18 May 2009 08:53:44 -0700
I picked up my BJ7 new in May of 1963, with a 100 mile drive home that 
day.  He had scuttle shake then and thereafter, lesser or stronger 
depending upon the shocks/wheel/tire conditions.  Sometimes 55-60 MPH 
was utterly intolerable:  I got a ticket crossing the Oakland Bay Bridge 
for going too slow- traffic was at 60 (10MPH faster than the limit), but 
I was at 50!  Frame harmonic makes sense to me.  My to-do list includes 
drum and driveshaft balancing near the top and, if I ever truly restore 
the body, the welds, etc. to the scuttle.

Bob Spidell wrote:
> Well, FWIW, my BJ8 is an original, unrestored (except for paint) car, 
> and it has always had some scuttle shake (from 64K miles when I bought 
> it to 170K now). Shocks have been rebuilt (Peter C.), driveline and 
> drums balanced, alignment from specialty shop (good one), front 
> suspension rebuilt (yes, correctly), 72-spoke SS Daytons with Pirelli 
> P3s, Yokohama A321s and Vredestein Sprint Classics, tracks true, etc., 
> etc. and it still shakes some.  The shake starts at exactly--according 
> to my speedo--at 56-57mph and builds if I stay at that speed, and goes 
> away at 59-60.  That's why I believe it's a harmonic in the chassis (I 
> think it's been mentioned that Geoff Healey acknowledged this 
> problem--can anybody say for sure?).
>
> Maybe some individual cars are more susceptible to the shake, and I 
> have no doubt a proper resto will accomplish a lot as the suspension 
> bushings, etc. will be renewed.  I've done my best, and still have the 
> shake.
>
> bs
>
> Joe and Lenore Armour wrote:
>> Mark LaPierre wrote:
>>
>>>  so I am assuming
>>> that the cars do actually vibrate at a certain mph
>>>
>>> JOE SAYS,
>>> Please,please, take a ride in a Healey as built or correctly 
>>> restored to tolerence. Scuttle shake was NOT standard. I have riden 
>>> in many that; did not scuttle shake,did not pull to the left or 
>>> right under brakes, did not have a couple of inches free play in the 
>>> steering. If a Healey has some or all of these features it is 
>>> NON-Standard and defective, or out of specification.  A million 
>>> dollars of shine and new parts incorrectly put together does not 
>>> constitute a RESTORED Healey, unless the necessary parts are  fitted 
>>> to specification and tolerence. No parts left on the shop floor does 
>>> not constitute a restored car.
>>
>> How do you think they were so successful in endurance record 
>> breaking, dirt road rallys and long distance racing,ie. 24 &12 hour 
>> duration.
>>
>> It concerns me the number of people who restore their Healey without 
>> seeing the need to purchase even one manual or book on these quite 
>> basic cars. Healeys were one of the first of the sports cars to have 
>> the firewall, scuttle and rear cockpit assembly welded to the chassis 
>> when MG's, Triumphs  and Jags had these sections bolted.
>>
>> Joe
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