[Healeys] Resonance at 2900 rpm

[Michael Salter]

"Yes on engine".
Well to be honest that opens a whole can of worms.
Engine balance would certainly be the first suspicion and that involves a
total rebuild.
Sometimes an exhaust system can develop a "resonance " which if caused by a
muffler will usually result in it cracking eventually.
I've encountered various other sources  ...
Badly balanced and mounted alternator.
Disintegrating front balancer
 & Loose flywheel
Come to mind.

Time for some diagnosis.

M


On Sun., May 2, 2021, 6:38 p.m. i erbs, <eyera3000 at gmail.com> wrote:

> Yes on engine.
> Yes to switching flywheel to BJ8 and special disk for toyota
>
> Ira Erbs
> 1959 AH 100-6
> 1967 MGB
> Milwaukie, OR
>
> On Sun, May 2, 2021, 11:18 AM Bob Spidell <bspidell at comcast.net> wrote:
>
>> Did you have your engine balanced at rebuild? If you did, have you
>> changed out the clutch or flywheel since?
>>
>> On 5/2/2021 11:01 AM, i erbs via Healeys wrote:
>> > Howdy all,
>> > Been driving my car a lot lately and I've been reminded that I get
>> > some load resonance between 2800 and 2900 rpm, in any gear. Have
>> > Smitty 5 speed.
>> > Any ideas?
>> >
>> > Ira Erbs
>> > 1959 AH 100-6
>> > 1967 MGB
>> > Milwaukie, OR
>> >
>>
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