803 stuck in first gear?

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DAVIDMCCULLOUGH
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803 stuck in first gear?

Postby DAVIDMCCULLOUGH » Tue May 07, 2019 4:10 pm

Does anyone have any ideas why an 803 would stick in first gear?

Background on the car is 14000 mile car laid up since the 60s but has been running and selecting well and probably covered at least 3 miles in the last few weeks, then suddenly sticks in first.

Im wondering if its anything to do with the reverse selector spring, I know this is prone to breaking on the MM but not so sure about 803.


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Nickol
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Re: 803 stuck in first gear?

Postby Nickol » Tue May 07, 2019 5:39 pm

There is a detailed thread on this somewhere in the Forum - apparantly the Problem is not uncommon....bit I cannot find it at the Moment.
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Dean
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Re: 803 stuck in first gear?

Postby Dean » Sun May 12, 2019 6:19 pm

Clutch could be stuck on perhaps? Mine was stuck when it was laid up prior to 2009.

viewtopic.php?f=4&t=23524
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oliver90owner
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Re: 803 stuck in first gear?

Postby oliver90owner » Sun May 12, 2019 6:27 pm

Dean wrote:
Sun May 12, 2019 6:19 pm
Clutch could be stuck on perhaps? Mine was stuck when it was laid up prior to 2009.

viewtopic.php?f=4&t=23524
Easily checked. Depress clutch pedal and try turning the engine with the starter motor. And only really relevant if the car was on a slope, so bearing on the gear train.

liammonty
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Re: 803 stuck in first gear?

Postby liammonty » Sun May 12, 2019 9:10 pm

The clutch wouldn’t cause it to stick in gear, though. Nickol is absolutely right on this one - it’s a known problem with these boxes (including the later ones fitted to the 1098) and there are several threads on here on it. I’ve had it happen to me once (after coming down a section of 1:3 hill in first) and the car is literally impossible to get out of first. From memory, it’s due to something moving too far on the overrun in first, which allows detent balls to pop out too far, preventing disengagement of first. I believe the problem can often be seen if you remove the gearbox side cover.

DAVIDMCCULLOUGH
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Re: 803 stuck in first gear?

Postby DAVIDMCCULLOUGH » Sun May 12, 2019 10:08 pm

Thank you for all your suggestions! Its most likely as liamonty suggests the selector passed the detent balls and stuck.

When I called up the owner had almost removed the gear lever from the box, I tried to get it back in place but it wouldnt go. I removed the lever completely and with a hand lamp could then see the 2 selectors side by side. I put in a large screwdriver and pushed against the selector and it pulled into place with a bit of force. The lever then fitted back into place and gears have selected again normally. Some fresh oil in the gearbox and axle is next on the agenda for this car as its been laid up since 1966!


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