Broken bolt in block under throttle body adapter - what now ?

Nat67 said:

I agree , extractors have their place . But you being a metal worker will know full well , there are extractors and then there are extractors . When most home mechanics equip , they would not want to spend the money that a really good quality set would cost , or even know where to buy the best . Cheaper ones shatter unexpectedly and if that happens , one needs to be looking for a firm who specialise in spark erosion !

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Nat67 said:

If you are not too confident with the centre punch, you can also buy drill centering guides , these fit in the hole and a small drill bit passes through the middle thus ensuring a perfect centre !

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1olbull said:

I have a set of these and the very few times I've needed them over 40+ years has paid for them many times over.

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Joesmoe said:

Again @warp9.9 Scott you know better than Triumph.

I had my manual open to Section 3 Head (also against your advice -- I was too much in a hurry to make copies) and the instructions say to remove the throttle bodies followed by the adapters (the rubber thingies). Presumably this last is so one avails oneself of the opportunity when one would otherwise not do it, to renew the seals under the adapter bases (almost identical to the seal under the water pump cover - also just replaced).

And this is yet another "Doh, I shudda hadda V-8" moment with the tap. Will do that for all the holes.

THANK YOU !

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warp9.9 said:

MD -1/N and over a inch Md - 1.0825/N

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Joesmoe said:

Say what ????

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Claviger said:

I used a left drill bit to remove a broken bar end bolt that sheared off, easy as pie. Dont over complicate it, drill the bugger out with the reverse bit.

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