URGENT- Not able to select gears

manga_blue · Postby **manga_blue** » Tue Jul 22, 2014 1:11 pm

Seized spigot bearing? Gearbox input shaft has welded itself to it?

Dweezle · Postby **Dweezle** » Tue Jul 22, 2014 3:35 pm

Thanks manga.
I have not really looked at the spigot.
The gearbox is off so will take a look tonight.
When does the spigot bearing get used?
Or is it always in use?

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Postby **NitroDann** » Tue Jul 22, 2014 3:57 pm

Any time the clutch isnt locked onto the flywheel.

Dann

sailaholic · Postby **sailaholic** » Tue Jul 22, 2014 3:59 pm

I thought mx5s ran constant on spigot bearing?

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Dweezle · Postby **Dweezle** » Tue Jul 22, 2014 5:23 pm

So Dann, if say the spigot bearing was locked solid, would that create the same issue??

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manga_blue · Postby **manga_blue** » Tue Jul 22, 2014 6:58 pm

Seized spigot means that gearbox input shaft is locked to the engine and the clutch has no effect at all.

Sailaholic, the spigot bearing only comes into play when the clutch is released and you need the gearbox input shaft to turn at a different speed from the crankshaft - like in the middle of a gear change or you're idling in gear with the clutch pedal depressed.

sailaholic · Postby **sailaholic** » Tue Jul 22, 2014 7:17 pm

Thanks manga. I was used to that with older stuff but read somewhere the spigot bearing was in constant contact for mx5 gear boxes which seemed odd at the time.

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Dweezle · Postby **Dweezle** » Tue Jul 22, 2014 8:29 pm

Thanks Manga,
I really want to check the Spigot still spins now as it sounds like a potential culprit.

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gslender · Postby **gslender** » Tue Jul 22, 2014 8:48 pm

sailaholic wrote:Thanks manga. I was used to that with older stuff but read somewhere the spigot bearing was in constant contact for mx5 gear boxes which seemed odd at the time.

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Spigot is in constant contact, but only spins differently to the flywheel when clutch engaged.

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manga_blue · Postby **manga_blue** » Tue Jul 22, 2014 9:10 pm

Word of caution, Dweezle. Seized spigot bearing doesn't explain the increased stiffness in the clutch pedal. No idea about that.

Dweezle · Postby **Dweezle** » Mon Aug 04, 2014 3:55 pm

Well car is mobile again.
We threw in a new kit and it all works.
I think the fork is twisted.
We found a spare on an old gearbox in my garage and comparing you could see a slight twist in it.

First day driving today and all seems pretty good.
Just need to adjust the engagement point slightly.

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