Roger Posted December 16, 2023 Report Share Posted December 16, 2023 (edited) I enjoy the archeological excavation of my very rusty 2000 Mk II engine now that i FINALLY have been able to remove the cylinder head. I hope that I can use the block, crank and cylinder head but I have to clean it up before I can evaluate the condition of the parts properly. The oil was still in the sump when I took it apart, and it was black, thick and full of dirt. I would like to remove EVERYTHING from the block and have it dipped in acid. The oil "channels" (whats the correct term?) are completely clogged and I would like to remove the lead blob thingy on the block and all the plugs to clean things up. I know I have seen an article in Practical Classics when they renovated a sixpot Triumph engine, and they removed this lead (?) blob and replaced it with a new one. Does anyone here know where I can buy this part (whatever it is called...). To me it seems better to make threads in the hole and add something else there, has anyone done that? I cant find this part, but then again I don't know the proper name so I dont know what to search for. Edited December 16, 2023 by Roger Link to comment Share on other sites More sharing options...
Ian Faulds Posted December 16, 2023 Report Share Posted December 16, 2023 Hi Roger, think oyster just a core plug, loads on the bay , they come on a set but try james paddocks or canleys some of the triumph parts guys. I've posted a pic of some I found on ebay to give you an example. 1 Link to comment Share on other sites More sharing options...
johny Posted December 16, 2023 Report Share Posted December 16, 2023 Dont know about a core plug but its some kind of plug that was never intended to come out after the connection from the oil filter outlet to the main oil gallery was drilled... 1 Link to comment Share on other sites More sharing options...
JohnD Posted December 16, 2023 Report Share Posted December 16, 2023 Talk to Rimmers. OR Mark Field, I think he has some, also for either end of the main oil gallery. That deserves being opened and then drilled out, but you need to press out the oil pump drive Bush to do that, and buy a really long drill, with parabolic flutes. I don't know how Triumph produced that, it's full of little projections as if it was CAST rather than drilled! Block dip - good idea! But once comes out of the final wash it will be so clean that it could flash rust. Get it home ASAP and give it the WD40 treatment John 1 Link to comment Share on other sites More sharing options...
Roger Posted December 16, 2023 Author Report Share Posted December 16, 2023 I have to find that issue of Practical Classic where they removed that thing. I remember that he used a hammer and it looked like "from factory" after he had replaced it Link to comment Share on other sites More sharing options...
JohnD Posted December 16, 2023 Report Share Posted December 16, 2023 (edited) Yes the plug needsvto be peened over. You know using that rounded end of your hammer that never seems to have a use! Edited December 16, 2023 by JohnD Link to comment Share on other sites More sharing options...
Roger Posted December 17, 2023 Author Report Share Posted December 17, 2023 23 hours ago, Roger said: I have to find that issue of Practical Classic where they removed that thing Frustrating! I found one issue of Practical Classics (November 2013) that covered the rebuild of a TR6 engine. I'm quite sure that they removed that lead blob in one of the issues in 2013 (it was a serie) but I can only find November 2013. I even spent 99p trying to get access to the archive of PDF versions, but no joy. So, those of you who collect magazines and have all issues 2013 can see what is behind that lead blob... Well well, I'm sure I can clean it properly anyway, I'm just curious! (and stubborn). Link to comment Share on other sites More sharing options...
ed.h Posted December 18, 2023 Report Share Posted December 18, 2023 That is an aluminum plug that was indeed peened at the factory to seal it. If you remove it, you will see that the hole is threaded 3/4"-16. It's not a pipe thread though, so you can't just use a pipe plug. You can buy new aluminum plugs, but you will probably have to peen them to get a good seal. I Locktited a 3/4-16 adaptor with a hole for a pipe plug. Ed 1 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 18, 2023 Report Share Posted December 18, 2023 seems its part of the oil gallery so next clue is what was its purpose at 3/4x16 its meaningful and not a drilling to core the gallery but its so close to the filter zone but obviously just not needed was this from an very early form of a bypass oil filter before the side mounted full flow was developed ??? Link to comment Share on other sites More sharing options...
Iain T Posted December 18, 2023 Report Share Posted December 18, 2023 Do you have to be careful not to restrict the oil gallery with an overlong threaded plug? Iain Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 18, 2023 Report Share Posted December 18, 2023 seems that if you leave it alone it will be fine its intended purpose is the question and why use a tamperproof plug ?? Pete Link to comment Share on other sites More sharing options...
ed.h Posted December 19, 2023 Report Share Posted December 19, 2023 16 hours ago, Iain T said: Do you have to be careful not to restrict the oil gallery with an overlong threaded plug? Iain You've got maybe 1/2". Ed 2 Link to comment Share on other sites More sharing options...
Roger Posted December 19, 2023 Author Report Share Posted December 19, 2023 On 18/12/2023 at 06:27, ed.h said: If you remove it, you will see that the hole is threaded 3/4"-16. Brilliant! That was exactly the information I was looking for. I have said it before and I say it again: The knowledge and support on this forum is excellent. Thank you Ed! Link to comment Share on other sites More sharing options...
Wagger Posted December 22, 2023 Report Share Posted December 22, 2023 Maybe look at a Standard Eight picture under the bonnet. They did not have a full flow oil filter. Historically, the engine block originates from that era. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted December 22, 2023 Report Share Posted December 22, 2023 2 hours ago, Wagger said: Maybe look at a Standard Eight picture under the bonnet. They did not have a full flow oil filter. Historically, the engine block originates from that era. Heralds neither; only about 40% of the oil went through the filter. Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 22, 2023 Report Share Posted December 22, 2023 i did suggest this was the left over from the early days of bypass filters used by many even as an option at times . Pete Link to comment Share on other sites More sharing options...
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