Sienna PI Posted December 9, 2020 Share Posted December 9, 2020 Whilst trying to trace an oil leak on my PI i took a photo of what seems to be a small rod bent at 90 degrees attached to the block located between the oil pressure relief valve and the oil filter housing, anyone have any ideas what it is please? A friend of mine has suggested it's a core plug maybe?! Cheers! Quote Link to comment Share on other sites More sharing options...
RobPearce Posted December 9, 2020 Share Posted December 9, 2020 I don't recognise it and I'm fairly sure it's not (been) present on any of my Triumphs. I don't have my PI any more, though, so can't check that. Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted December 9, 2020 Author Share Posted December 9, 2020 Hi Rob! Thanks for the reply! Maybe I should have sent the picture to Dale to put in Club Torque for a quiz ?!!! Cheers! Quote Link to comment Share on other sites More sharing options...
Guppy916 Posted December 10, 2020 Share Posted December 10, 2020 Iv'e just had a look at canley's site, this might help https://www.canleyclassics.com/?diagram=triumph-tr6-late-cylinder-block-liners-oil-pressure-switch&ptno=116511 Quote Link to comment Share on other sites More sharing options...
RobPearce Posted December 10, 2020 Share Posted December 10, 2020 I don't think so. The item you highlighted is where my blue arrow points. I'm fairly sure Dave was referring to the thing at the red arrow. Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted December 11, 2020 Author Share Posted December 11, 2020 Thanks for your reply George G but it is the thing that the red arrow points to in Rob's reply that i am curious about! Cheers! Quote Link to comment Share on other sites More sharing options...
Guppy916 Posted December 11, 2020 Share Posted December 11, 2020 Yes your blue arrow is part number 121398, i'm looking at part number 116511, all the above list say's is "oil plug", I am thinking is it a blanking plug for drilling the oil ways, i cant see any trace in any of the canley's engine descriptions :- GT6, TR6 , 2000, 2.5, the mystery continues ???? here's a picture of my old block Number MG 86361, from a 2.5 PI 1969 - 1975 Quote Link to comment Share on other sites More sharing options...
RobPearce Posted December 11, 2020 Share Posted December 11, 2020 Quoted from Guppy916- Yes your blue arrow is part number 121398, No, 121398 is the oil warning light switch which is adjacent to my blue arrow. The tip points lower down, at 116511 which is, as you think, a blanking plug for the oil way drilling. The mystery object is certainly not anything that was fitted on any 2L engine by the factory. I don't think the 2.5PI engine has anything extra there. On your photo, it would be roughly where the brown rusty smudge is, an inch or so to the right of 116511 Quote Link to comment Share on other sites More sharing options...
Guppy916 Posted December 11, 2020 Share Posted December 11, 2020 Hi Rob is this a little clearer, I must admit mine is drilled at a different angle, And looking at Dave's photo the blocks do look different, I shall check my new block which came from a 2.5 PI which was first reg on 24 Aug 1977, the mystery still eludes us ! Quote Link to comment Share on other sites More sharing options...
RobPearce Posted December 12, 2020 Share Posted December 12, 2020 No, George, I don't think you're seeing the object in question. The upper plug on the right side of your photo is also there in Dave's original but hidden because, from the angle he took it, the "eyelid" hides it. Quote Link to comment Share on other sites More sharing options...
Guppy916 Posted December 12, 2020 Share Posted December 12, 2020 After some fore thought I asked a friend and ,,,,,,,,,,,,,,what he said makes sense What is shown in the photo looks suspiciously like the remains of the bulb from a capillary temperature gauge. It might have been knocked in or even glued in as it would normally have been held in place by a screwed collar (There might be compression fit bulbs around with a olive). I don’t think it was original to the block and someone has drilled the oil gallery. They might have wanted to run an oil pressure/temperature gauge set up. The port for the Oil pressure gauge is next to it. I run a temp/pressure gauge on my white TR6 but used an existing tapping. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted December 13, 2020 Share Posted December 13, 2020 Object seems to be directly over the oil passage feed to the oil filter, so it would be a fairly logical place for an oil temperature sensor - but a strange way to do it. There's a perfectly good threaded plug a little upstream that works fine and needs no drilling. Looks like it's been there a while and will hopefully stay put. Probably a scab that is best left unpicked...... Nick Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted December 16, 2020 Author Share Posted December 16, 2020 Quoted from Guppy916- After some fore thought I asked a friend and ,,,,,,,,,,,,,,what he said makes sense What is shown in the photo looks suspiciously like the remains of the bulb from a capillary temperature gauge. It might have been knocked in or even glued in as it would normally have been held in place by a screwed collar (There might be compression fit bulbs around with a olive). I don’t think it was original to the block and someone has drilled the oil gallery. They might have wanted to run an oil pressure/temperature gauge set up. The port for the Oil pressure gauge is next to it. I run a temp/pressure gauge on my white TR6 but used an existing tapping. Thanks for your input George G! It does look like an afterthought from someone other than the factory. Quote Link to comment Share on other sites More sharing options...
Sienna PI Posted December 16, 2020 Author Share Posted December 16, 2020 Quoted from Nick Jones- Object seems to be directly over the oil passage feed to the oil filter, so it would be a fairly logical place for an oil temperature sensor - but a strange way to do it. There's a perfectly good threaded plug a little upstream that works fine and needs no drilling. Looks like it's been there a while and will hopefully stay put. Probably a scab that is best left unpicked...... Nick Hi Nick! Yep! If my facts are correct, I've been using this engine since 1996 and it's definitely one scab I'm happy to leave well alone! Quote Link to comment Share on other sites More sharing options...
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