There's always "percussive" maintenance. :-)
It sounds like the inny-outie thingy-bobber is getting stuck. Maybe take it
out, and if the little gearjobber isn't moving freely, clean and lube it. On
the other hand if the motor isn't spinning fast enough it might not be throwing
the gearjobber out far enough to engage with the flywheel.
On second thought, this is probably too technical, never mind me, and pay
attention to the guys that actually know what they're talking about.
> On Jun 8, 2024, at 3:25 PM, Robert's New iPad <mgbobh@gmail.com> wrote:
>
> Dave,
> There are two types of starters that could be on your engine.
> Early, like those on MGA, were Bendix-type, in which the inertia of the
> pinion caused it to unwind on starter motor shaft. It unwound on the coarse
> threads until the pinion meshed with teeth on the ring gear, then it stopped
> unwinding and the starter turned Bendix gear and the ring gear to start the
> engine.
> Later starters were called â??pre-engagedâ??. In these, power from
> starter switch moved the electromagnet in the starter solenoid which has a
> lever that moves the pinion into engagement with the ring gear, then the
> solenoid powers the starter, which turns the gear and ring gear.
> If your starter is a cylinder, only a cylinder, like the cylinder-shape
> of the dynamo, it is Bendix type. If it has not been used in 18 months, it is
> possible that the Bendix gear is hanging on a tiny bit of rust on the coarse
> threads, so the Bendix is not turning the ring gear. Disassemble, clean the
> threads, use a dry lubricant like teflon or graphite, and it should work as
> new.
> If it is the later type, which you can identify by a smaller cylinder
> mounted on the starter, in line with its shaft, yours is pre-engaged. You
> say the starter spins, so it is probably OK, the problem being
> non-engagement. I would check again for free movement of the pinion. Iâ??ve
> never faced this with a pre-engaged, but I donâ??t rule that out.
> Bob
>
>
>> On Jun 8, 2024, at 1:33â?¯PM, dave northrup <dave@ranteer.com> wrote:
>>
>> 
>> Early 5 main mgb engine in a 58 mga. Received in kit form; been working on
>> this thing for 18 months.
>>
>> I think the conclusion is pretty obvious; just looking for confirmation.
>>
>> The starter would turn the engine over, then just spin. Wait until it
>> stops, try again. Usually after a few tries the engine would start.
>>
>> Now it just spins. Was that a sign that the starter was going? Is it now
>> gone? And doesnâ??t activate the gear so the engine doesnâ??t turn over?
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--
Larry Colen
lrc@red4est.com. sent from Mirkwood
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