Roger Posted June 16 Report Share Posted June 16 (edited) I agree with Johny, it certainly make sense to have a magnet at least on diff and gearbox plugs. And they don't do any harm on engines either. A neodym magnet costs less than a £ and it is also easy to find one for free. No need to buy one. The magnets you find inside an old computer are extremely powerful and quite small. They can be placed on the outside of the plug on top of the nut as on the picture attached if you don't want to drill a hole in your original plug. It easy to make the plug yourself, no need to buy one and they don't leak (if you make one yourself using the original plug). Hence, I don't see any reason not to use a magnetic drain plug. Edited June 16 by Roger Link to comment Share on other sites More sharing options...
68vitesse Posted June 16 Report Share Posted June 16 16 hours ago, johny said: Trouble is once rounded off Im not convinced you can get proper replacement 'Dryseal' plugs anymore☹️ ⅜NPTF solid plugs are listed on eBay, according to Google they are the same thing. Regards Paul. Link to comment Share on other sites More sharing options...
johny Posted June 16 Report Share Posted June 16 If theyre a genuine NPTF (with the associated extra attention to tolerances) and not just NPT they should seal correctly👍 Link to comment Share on other sites More sharing options...
johny Posted June 16 Report Share Posted June 16 This company give me some confidence in their plugs even doing teflon coated ones: Unbrako Engineering Guide Link to comment Share on other sites More sharing options...
Colin Posted June 16 Author Report Share Posted June 16 Johny:- 'rounded off' . . . I've had the darn things too tight before now and round the square nut off. Once out/off, I just coarse filed the flats for the next spanner down-sized. Eventually of course, if that continued there'd be nothing left eventually, but I've endeavoured to avoid that by not over-tightening, since! 🤣 Link to comment Share on other sites More sharing options...
johny Posted June 16 Report Share Posted June 16 Also I wonder if the interference fit thread doesnt wear, especially over 50+ years, so the sealing is lost and it might be good to have a nice new plug especially one teflon coated😍 Link to comment Share on other sites More sharing options...
Colin Posted June 16 Author Report Share Posted June 16 Good thought . . . Link to comment Share on other sites More sharing options...
Colin Posted June 17 Author Report Share Posted June 17 So . . . Chaps. Theoretically, as an exercise; how far into the body of the plug should I drill for magnet insertion?!? I know, y'all gonna say depends which magnet type you're using! Roger says, 'not at all if using a hard drive magnet'! But I'm minded of the exercise I put jnto action with my green indicator jewel plastic lens. In bright sun I couldn't see if it was on, even with led bulb. So I drilled down into the body of the lens as wide as I dared and it let light into the plastic & I could then see the unit operating even in bright sun. Should I drill way into the plug, inserting a rod magnet - as I'm thinking the small 'neodisc' (??) type might not be magnetic enough if only flush mounted to the nut head surface. Closer to the oil is better, right?!? 101 to skin a cat etc..... Cheers, chaps! Best, C. Link to comment Share on other sites More sharing options...
68vitesse Posted June 17 Report Share Posted June 17 Magnets can be demagnetised by heat, some types have have quite a low heat tolerance. Regards Paul. Link to comment Share on other sites More sharing options...
Colin Posted June 17 Author Report Share Posted June 17 And I don't suppose there are any out there with specs issued on their heat performance!! Best, C. Link to comment Share on other sites More sharing options...
Colin Posted June 17 Author Report Share Posted June 17 I've just been advised the nut, rear if cylinder head is the same part number . . . opens a new line of sourcing; some dealers have told me they'd rather leave sump nuts in to save their storage leakages!! Link to comment Share on other sites More sharing options...
Iain T Posted June 20 Report Share Posted June 20 My 3/8 NPT magnetic plug has leaked since I installed in at the last oil change. Similarly to others it only engages a couple of turns. The PO had fitted a straight cut plug which again leaked. So after reading this thread I ordered a NPTF plug off eBay. It's not magnetic but the engine is only two oil changes after being fully refurbished. I hope this will stop the oil slick on my drip tray and chassis🤞 Iain Link to comment Share on other sites More sharing options...
johny Posted June 20 Report Share Posted June 20 Let us know the result Iain - it could be the holy grail, a dry Triumph! Link to comment Share on other sites More sharing options...
Chris A Posted June 20 Report Share Posted June 20 2 hours ago, johny said: it could be the holy grail, a dry Triumph! Yes, sure. About as likely as a politician's promise being kept 😃 1 1 Link to comment Share on other sites More sharing options...
Iain T Posted June 20 Report Share Posted June 20 (edited) 3 hours ago, johny said: et us know the result Iain - it could be the holy grail, a dry Triumph Will do. Now the rocker cover cork is correctly fitted that doesn't leak and I'm fed up with the cockpit smelling of hot oil. Edited June 20 by Iain T Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 20 Report Share Posted June 20 4 hours ago, Iain T said: this will stop the oil slick on my drip tray and chassis why not sleep easy and just do what triumph designed a well proven 50 yr old taper plug that just ....works Pete Link to comment Share on other sites More sharing options...
Iain T Posted June 20 Report Share Posted June 20 1 minute ago, Pete Lewis said: why not sleep easy and just do what triumph designed a well proven 50 yr old taper plug that just ....works It may be Triumph actually used an NPTF? Either way my sump leaked like an I'll fitting catheter...... Iain Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 20 Report Share Posted June 20 got a few spares if needed , great for brake bleeding Pete Link to comment Share on other sites More sharing options...
Colin Posted June 20 Author Report Share Posted June 20 I too, get heavy fumes into the cockpit, with the windows inevitably open. But with Bell twin s/steel exhausts I have been told that at most speeds the wrap-around exhaust pulls round the car (& hence into the cabin). I don't know whether tobelieve this or not . . Soz, a bit off topic! Best, C. Link to comment Share on other sites More sharing options...
Iain T Posted June 20 Report Share Posted June 20 2 minutes ago, Colin said: too, get heavy fumes into the cockpit, with the windows inevitably open. But with Bell twin s/steel exhausts I have been told that at most speeds the wrap-around exhaust pulls round the car (& hence into the cabin). I don't know whether tobelieve this or not . . Soz, a bit off topic I love a tread drift😁. I'm tackling the fumes bit by bit. I think my wheelbarrow exhausts are not long enough. I may make a longer straight intermediate pipe from the Phoenix manifold to the Y piece with a small silencer to make it quieter and help exit the fumes out the back. If you find a solution let me know! Iain Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21 Report Share Posted June 21 yes tail pipe extension is very important tape some lengths of wool on the boot lid and drive you will be surprised where the vortex goes short pipes will fill the cabin with fumes its a time old problem Pete Link to comment Share on other sites More sharing options...
Iain T Posted June 21 Report Share Posted June 21 I believe the Phoenix system on my Vitesse is actually made for a GT6 so I wonder if the body overhang to chassis is longer on a Vitesse than GT6 making the pipes just a couple of inches too short? Iain Link to comment Share on other sites More sharing options...
Peter Truman Posted June 21 Report Share Posted June 21 Remember the GT6 chassis is 9in shorter than a Vitesse thats ignoring the rear boot legs, or boot length. Link to comment Share on other sites More sharing options...
Colin Posted June 21 Author Report Share Posted June 21 Oooh! Interesting. I'm going to take a side-on photo and post for comment! Link to comment Share on other sites More sharing options...
Iain T Posted June 21 Report Share Posted June 21 (edited) Peter that could be the answer? Colin, going out now but I'll post a photo this afternoon . Can you take a measurement from your bumper to the tailpipe? Iain Edited June 21 by Iain T Link to comment Share on other sites More sharing options...
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