[DeTomaso] (no subject)

[Julian Kift]

Interesting, sometimes a vibration is noticeable under load only situations, but what happens if you a) maintain the revs at 2500 rpm whilst dipping the clutch? or b) ride the clutch just enough to preload the throwout bearing?
 
If a) results in the vibration I'd settle on the flywheel. Is the clutch of the 3 finger or diaphragm design? 
 
I know of at least three McLeod friction plates that have had a spring come loose or dislodge and give a vibration, almost all within a month or two or very few miles. One spring came all the way out and lodged in the diaphragm.
 
Julian
 
> From: seanmundy at hotmail.com
> To: mikeldrew at aol.com; detomaso at realbig.com
> Date: Fri, 27 Aug 2010 17:21:36 -0700
> Subject: Re: [DeTomaso] (no subject)
> 
> 
> It's probably not the drivetrain. If I'm on the freeway and feeling the vibration at 2500rpm and 60mph I can push the clutch in and the motor goes to idle at 1000rpm. The vibration is totally gone even though I'm still rolling free at 60mph down the road. So I think that eliminates any concerns with the drivetrain? 
> 
> 
> 
> From: MikeLDrew at aol.com
> Date: Fri, 27 Aug 2010 20:13:44 -0400
> Subject: Re: [DeTomaso] (no subject)
> To: seanmundy at hotmail.com; detomaso at realbig.com
> 
> Sean,
> 
> One more datapoint.
> 
> John Christian had a rumble in his rear that simply confounded him, and Asa Jay, and me, and several professional tire shop technicians, for a full day. New tires, alignment, driveshafts, etc. etc.
> 
> It turned out that he had a rear wheel bearing, that had a tight spot. It would tighten up once per revolution. We finally figured it out by jacking the rear of the car off the ground, and running it up to 80 mph or so in 5th gear, then putting it in neutral and chasing the wocka wocka wocka sound with a mechanic's stethoscope.
> 
> This is obviously a job best done with assistants, i.e. somebody behind the wheel and ready to assume both feet on the brake at any moment. The car was supported on two jackstands and a floor jack and the front wheels were chocked, but still, you can't be too careful.
> 
> Mike 
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