I have just got a replacement gearbox from Japan as my last one failed. Prior to fitting the replacement gearbox i dropped the sump to change the filter and noticed quite a lot of metal shavings on all 3 sump magnets. I believe it is normal to have some metal shavings but not sure if this amount is normal. thanks for any help Martin.

 

Edited August 4, 20232 yr by martin bevins

15 hours ago, martin bevins said:

I have just got a replacement gearbox from Japan as my last one failed. Prior to fitting the replacement gearbox i dropped the sump to change the filter and noticed quite a lot of metal shavings on all 3 sump magnets. I believe it is normal to have some metal shavings but not sure if this amount is normal. thanks for any help Martin.

 

 

Hello Martin,

 

I am NOT a mechanic; I would be concerned.

 

The real issue is where the filings came from ?

I assume you know they didn't come from your engine.

 

Probably needs a really good flush, possibly more than once.

 

Hopefully a more knowledgeable member will offer better advice.

 

It's normal to get shavings in there that's why there is magnets. Over time the gear box will shave a little.

 

So only be concerned if you have any gearbox problems such as gears slipping, grinding, problems getting into gears or surging.

 

Other than that just give the gear box 3 - 4 flushs of fluid, leaving around 30 - 40 miles per flush as half is contained within the gearbox itself.

Thanks very much for your reply. Do you know roughly how much fluid this will take. I dont want to over or underfill it thank Martin

as above that looks fairly normal. I would be concerned if there were any chucks of metal. Auto gearboxes have clutch packs that produce wear and shavings in operation.