97 Peugeot 406 1.8 gearbox problem

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Sat 27 Jan 2007 18:54
97 Peugeot 406 1.8 gearbox problem - reevsie
Today I have just travelled 650 miles from the south of france in 4th gear because I lost 5th gear. The problem developed relatively qucikly and I first noticed something was wrong when it crunched a couple of times putting it in 5th. The third time it made a terrible grumbling noise and popped out of gear completly. Is this a new gearbox or could it be something less sinister? As an aside, I think it may have been attributed to locking the wheels several times whilst I was in 5th as the dutch driver in front suddenly decided to slam on his anchors for no apparent reason (think he was lost). Could this be a possible cause as the box was working fine beforehand - no whining, crunching etc..

btw next time i go skiing i'm flying!!
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Sat 27 Jan 2007 19:02
97 Peugeot 406 1.8 gearbox problem - LeePower
406 5th gear problems are known about in the trade.

Its worth taking the end gearbox cover off & seeing if the nut that holds the 5th gear on the shaft is lose before thinking about a gearbox swop.

If the securing nut is lose you maybe lucky & simply doing it up to the correct torque could fix it, if the 5th gear cog is damaged then recon / good second hand box would fix it.
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Sat 27 Jan 2007 19:54
97 Peugeot 406 1.8 gearbox problem - reevsie
cheers for that LeePower, 2 things

1. I am assuming I will have to drain the transmission oil in order to take the cover off.
2. Do you happen to know the correct torque for the nut as the haynes manual doesn't appear to cover this.
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Sat 27 Jan 2007 20:04
97 Peugeot 406 1.8 gearbox problem - LeePower
Correct some of the oil will come out when the cover is removed so its best to drain it, the correct oil type is in the owners manual as well as the Haynes book of mysteries & checking the oil level is correct afterwards is simple enough.

Ive no idea of the torque setting for the securing nut im afraid, might be an idea to ask a gearbox specialist that question or to even take a look at it, they would have most likely seen this 406 problem once or twice before.
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