Garrett GT20 Project

[306Puggy]

That looks considerably better. See how you can now clearly see the circumference of the holes, so you have a better chance of drilling them in the right places?
Crack on with that, it looks to be a good template.

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Havn't been asked to go on strike lately have you by any chance?

Thanks for the input. Yeah, I can definitely see how this will allow me to outline the holes more accurately.

Not sure what you mean regarding going on strike? As in, banned from the forum? Or are you making a joke about my project that I don't get? Sorry but it has fallen flat if so

But yeah, thanks for suggesting to use something sharp to cut the holes out I don't think of these obvious things most of the time!

I noticed your CWU letter in the background that is all. It says 'VOTE', and as I have been presented with the fact that I may be going on strike soon, I was wondering if we were in the same line of business.

Oh, no, heh. I'm only on a 5 hour 3 month contract but I have been working full time due to overtime recently, no way I'm gonna go on strike! The only reason I have been able to undertake this project is because of that job!

What i did was drill one hole roughly in the right are on the plate, then bolt the turbo down to it, and clamp it down really tight so it won't move. Then I used a drill bit that was a tight fit in the holes to make my centre marks for the other holes, removes the turbo and finished drilling the holes. Do one at a time tho, and then bolt two down, clamp and mark, and then drill the final hole, that way, you shouldn't be able to cock it up

Oh I get you I think. So you use a drill bit that is a tight fit in the hole so that it doesn't leave any room for movement and then tap it with a hammer like a punch to mark out the hole? Really good idea! That way it will be bang on in the center.

And then doing it one by one means that you can check as you go along because you are bolting it down as you go. Yeah, that makes sense.

This arm for the wastegate is stopping me from laying the turbocharger down completely straight:




I will have to get the steel plate cut down by someone to accomodate the wastegate arm, unless I can cut it with a hacksaw? It's only a few CM off the top of the plate that needs removing.

What samass said at the top of the page sounds like a good idea.

Im worried that 6mm might not be thick enough and it definitely dosent give you the option to countersink holes.

8.5mm is the hole size you'd want for 8mm to give some room for error/expansion.

I'll write a better reply when im back in civilisation.

Yes, I certainly don't have the option to countersink any holes. I don't know whether it will cause any issues except for that though. Hurry up and get back to civilisation please

One thing I can get on with now is plotting the manifold holes on the other side of the adapter plate. I have thought of a more accurate method. I am gonna lay the manifold on the plate and then use spray primer to spray through the bolt holes which should give me perfect circular marks for where I need to drill and then I can use Samass's method to mark out the center through the manifold holes as well. Then I just need to wait until my 10mm drill bit gets here!