John McCormack Posted September 6, 2023 Report Share Posted September 6, 2023 (edited) This morning my TR3 made a nasty noise when backing out of the garage. It appears to be from the gearbox or maybe the clutch. wasn't there at the start but started after a few seconds. The car moves normally. No problems in forward gears. I took it for a good long drive yesterday to have coffee with club members. No noises, including reversing out of a parking spot at my destination. Not sure if it is the clutch but suspect the box. Just when I have the box out of the TR6. Damn Noises in reverse, any ideas to start looking at? I just put the car back in the garage and the gearbox is making bad noises rolling backwards with the clutch in. Forward is still ok. More analysis, it isn't stuck in overdrive. Sounds like a gear tooth is missing. Edited September 7, 2023 by John McCormack Quote Link to post Share on other sites
Lebro Posted September 7, 2023 Report Share Posted September 7, 2023 Overdrive ? if it get inadvertantly engaged in reverse the one way clutch will try to stop you going backwards. If it is worn the it might allow movement, but will be complaining ! Bob Quote Link to post Share on other sites
John McCormack Posted September 8, 2023 Author Report Share Posted September 8, 2023 Thanks Bob. Unfortunately, not the overdrive. It is engaging and disengaging normally. With the car on axle stands all is fine in the forward gears, overdrive working normally. With overdrive off put the car in reverse and the rear wheels turn as per normal but it sounds like a tooth missing on a gear. A regular knock knock knock from the gear box. Mayb the reverse gear has lost a tooth. Quote Link to post Share on other sites
John Morrison Posted September 8, 2023 Report Share Posted September 8, 2023 Leave in the car and pull top cover go fishing with a telescopic magnet You’ll soon find any bits, with those removed could you not use the car until the six is complete? I’ts only reverse John Quote Link to post Share on other sites
BlueTR3A-5EKT Posted September 8, 2023 Report Share Posted September 8, 2023 (edited) Could be a lost tooth. Do not drive or you could be in for..(fanfare) The Golden Trio. Reverse, First, Laygear. So named as the cost to replace all three is eye watering. (About £700.00 for just 3 parts) Do as suggested. Lift the lid and fish inside. You can spin the reverse idler gear by hand and check for dental integrity Edited September 8, 2023 by BlueTR3A-5EKT Quote Link to post Share on other sites
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