Can anyone identify this bolt?

[Gerald]

Pipe plugs are a pipe thread, tapered threads, don't think any way possible to run all the way through without the housing being cracked and spreading. Take it out, put a thread sealant on threads and screw it back in. Drain oil first.

 

[BlackSails]

I went in far enough to know something wasn't right. Now that I understand whats happened it looks like I'll be dropping the pan this winter & setting it back right. I surely don't want to take the chance of the upper plug getting loose in the engine. Great catch on the two opposing plugs!! Thanks again!

 

[Gerald]

I went in far enough to know something wasn't right. Now that I understand whats happened it looks like I'll be dropping the pan this winter & setting it back right. I surely don't want to take the chance of the upper plug getting loose in the engine. Great catch on the two opposing plugs!! Thanks again!

Don't believe it has but one plug per hole, accessed from the outside. Think what was intended to show was the two views of the plug, allen wrench side and the solid side.

 

[Martin-Brighton-uk]

My engine bottom case has a hex key hole on both outside and inside so I guessed it was two plugs. Blacksails you gonna have to remove engine bottom plate in spring and see what's what. Unless you have a scope you can put in through an oil drain hole. Mind you cleaning the oil gauzes and replacing the oil valve can't hurt.

 

[G-Force Junkie]

I imagine you could (should?) run the plug back out a bit before the engine is run-up. As it is tapered, there could be some stress on the assembly that will be exacerbated by the thermal expansion / contraction that occurs with the heat. It's not holding back 3000 PSI.. So, could also take it out and put some thread seal on it prior to re-install I suppose.

 

[Ishrub]

Gee, we're sure the Dutch are happy that kid knew what a plug is, but was it necessary?

This could get real tricky now with three sump and drain plugs for an oil change too!
I know it surprised me.

WTF.... it was an American invention the whole time and the Dutch just invented the hole in Yankee wallets to get their fingers into!

Statues of the boy and the dike[edit]​

For tourism purposes, statues of the fictional dike-plugging boy have been erected in Dutch locations such as Spaarndam, Madurodam and Harlingen. The statues are sometimes mistakenly titled "Hans Brinker"; others are known as "Peter of Haarlem". The story of the dike-plugging boy is, however, not widely known in the Netherlands—it is a piece of American, rather than Dutch, folklore.[20][21]

 

[TURBO200R4]

i am thinking that that story started in the us i can remember as a boy there was two foxy ladies up at the lake on lovers lane now i don't remember the whole story but one of them got caught with there finger in the dyke

 

[leatal]

Don't believe it has but one plug per hole, accessed from the outside. Think what was intended to show was the two views of the plug, allen wrench side and the solid side.

I take the two Allen mystery plugs out during oil changes. First remove the drain plugs and let the oil drain, then the two mystery plugs. You'll see an additional cup of oil drain from the plugs. When reinstalling the mystery plugs, do not use Triumph torque recommendation (I think 25nm) as that is way too tight. I just tightened until plug is flush with case. Some folks say not to remove the plugs, but 20k miles and seven oil changes, I have had no oil leaks from the plugs.