Nolan makes some good points. I'm wondering if you could isolate
the conditions better. If you turn the engine off and coast at
the troublesome speed, does it change? Can you reproduce it by
revving the motor while parked?
Since it feels like a engine miss, could it be something as simple
as a bad plug wire, poorly gapped or oil fouled spark plug?
Good luck!
Greg Rowe
>From: "Nolan Penney" <npenney@mde.state.md.us>
>Reply-To: "Nolan Penney" <npenney@mde.state.md.us>
>To: <spitfires@autox.team.net>, <triumphs@autox.team.net>,
><nass@egroups.com>, <spitfire-enthusiast@egroups.com>,
><ptegler@gouldfo.com>, <SPIT6CGT6@yahoogroups.com>
>Subject: Re: STRANGE vibration!
>Date: Tue, 16 Oct 2001 14:25:01 -0400
>
>If it's engine rpm related, and not drivetrain rpm related, that pretty
>well takes the cv joint out of the picture. Though the input shaft
>of the gearbox is still a possibility.
>
>So I'd be investigating things like a loose flywheel or pressure plate,
>bent front pulley, cockeyed belt driven accessory, bent push rod, etc.
>
> >>> "Ptegler" <ptegler@gouldfo.com> 10/16 11:36 AM >>>
>....and yes... is seems engine speed dependent.
>
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