Technical Oh dear, gearbox oil leaks

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Technical Oh dear, gearbox oil leaks

Blondeinapunto

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Jun 28, 2005
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bought 55 Preg a few weeks ago, no visible big oil leaks but gears slightly noisy. My dad filled up the gearbox oil per haynes, - took 1L! now leaking oil from the plate between gerabox and engine. My dad tried some stuff to stop leaks a few days ago but now its worse. He said that best thing is to sell it as will be expensive to fix. Is that so? ,my boyfriend says oil seals are easy to do just takes time, who is right? Anyone know any inedpendent garages in southampton i can trust?

Dad here, seems getting rid of the punto is going to be fraught with daugther grief so. Its a 1997 55 SX 5 sp box, seems previous owner let oil get low and then cleaned up the gearbox to sell. tut tut. Anyway the haynes manual is in chocolate fireguard territory when it comes to transmissions on this car. The oil leak is not to my best belief on the end plate oil seals, as the clutch continues to work fine, if they were leaking with this much oil the clutch would go.

The source of the leak is a 12/13mm bolt head below and to the right of the filler plug (see att photo), haynes says that the drain plug is also a allen key plug but i cannot see it anywhere. This bolt is leaking oil at a rate of knots, it is also tightened so far i could not tighten further. Becaus I don't know what this bolt does I have NOT tried to undo. But to cure leak i will have to.

Does anyone on here know if this bolt can be a) removed or b) loosened to get some sealer behind it. I dont want to remove it to hear a clunk from inside the box as some important piece of italian transmission engineering falls off!! Thnaks in anticipation
 

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im not sure but it think from memory that the bolt has a copper washer onit, i also think if can remember right that the bolt goes into the reverse gear selector mechanism. just remove it slowly in a quite place so you can here if anything moves. im sure its just a big metal reverse lock it shouldnt move. even if the block moves it cant go anywhere because its on a shaft it will just spin round.

it may even be a detent plug in which case all that will fall out is a ball and spring but i dont think the punto used external plugs for that.
 
There's no copper washer its nickel coloured, thanks for your reply, if I dont get any others I may just chicken it and only undo the bolt enough to get some sealant behind it. Strange place for a leak though.
 
aluminium washer.? btw the drain plug is located almost next to the drive shaft,, allen headed the same size as the filler plug.
 
Thanks for your help I didnt completely withdraw the bolt just used some silcone gasket on it. Seems to have worked for now, no it wasn't the drainplug thats on the back of the transmission.
 
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