sandglobe Posted November 23, 2020 Share Posted November 23, 2020 Hi, so I've managed to locate the inspection hole on the top of the transmission but are there any easy to get to drain plugs with the car on the road? Quote Link to comment Share on other sites More sharing options...
RobPearce Posted November 23, 2020 Share Posted November 23, 2020 Inspection hole? The gearbox has a filler plug on the right hand side, which is accessible if you remove the carpet and fibreboard cover. The drain plug is at the bottom of the gearbox, accessible from under the car but not without putting it on ramps. Quote Link to comment Share on other sites More sharing options...
foshi Posted November 23, 2020 Share Posted November 23, 2020 think you mean the filler hole , you need to get it up in the air level if possible then drain and refill . Quote Link to comment Share on other sites More sharing options...
glang Posted November 23, 2020 Share Posted November 23, 2020 I wonder if Haydn is talking about the cover over the diff? Quote Link to comment Share on other sites More sharing options...
RobPearce Posted November 23, 2020 Share Posted November 23, 2020 Quoted from glang- I wonder if Haydn is talking about the cover over the diff? I did slightly wonder that myself, and almost added something about it. So I will. If you actually mean the differential in the rear axle, there is no drain hole. Triumph deleted it early on because diff oil is supposed to last the life of the vehicle. Of course, the vehicle wasn't supposed to live as long as they have! It's possible to add a drain hole (and plug!) but not without decent access under the car. I'd want a pit, not just some ramps. Incidentally, the "inspection cover" in that case isn't for inspection. It's to gain access to the studs for removal of the rear spring. Quote Link to comment Share on other sites More sharing options...
Bitumen Boy Posted November 24, 2020 Share Posted November 24, 2020 The other option for the diff is to siphon out the old oil through the filler/level hole, or suck it out the same way. Not quite as good as draining it out but better than doing nothing. I once managed to siphon the diff oil out using a semi-flexible plastic tube of small bore - I rather think it was the pretty useless thing supplied as a cavity lance with the stirrup pump type of Waxoyl sprayer. It took a lot of sucking to start the siphon flowing and it was very slow to flow at all once started - one drip every minute sort of territory - but over a day or two it did eventually shift what must have been close to the total oil capacity of the diff, enabling a refill with fresh oil. Quote Link to comment Share on other sites More sharing options...
Guppy916 Posted November 24, 2020 Share Posted November 24, 2020 And there is this https://www.carbuilder.com/uk/vacuum-oil-extractor Quote Link to comment Share on other sites More sharing options...
sandglobe Posted November 24, 2020 Author Share Posted November 24, 2020 Thanks for the advice, I did mean filler hole but the words didn't come to me Quote Link to comment Share on other sites More sharing options...
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