Well I'm getting pretty near to the end of the actual physical part of the turbo install on the tib. But I've run into quite a serious dilemma. When trying to remove the allen screw for the oil tap for the turbo on the engine head where everybody else has mostly run it from, I stripped out the surface. Thinking this was no big deal, I bought a screw/bolt extractor and proceeded to try to convince the thing to come out. After trying that for about 10 seconds, the actual extractor bit snapped of and is now lodged inside of the freaking allen screw I was trying to remove.

Pic of FUBAR situation: http://i9.photobucket.com/albums/a91/Falli...lfeedsource.jpg

I've tried drilling the damn thing so that i could try another extractor, but this stuff is tough freaking steel, and I just sit there spinning the bits. After a moment, I found another small hex plug on the head behind the one I was drilling, circled in this pic: http://i9.photobucket.com/albums/a91/Falli...eedsource-1.jpg

Can I feed the oil to the turbo from this source? It is a slightly smaller diameter than the original, so I don't know if it will still have enough pressure or flow enough oil to sufficiently feed my turbo.

Oh and any suggestions on how to fix the original allen screw would be great! I appreciate it guys. Oh and anyone know of any other good places to run oil feed lines from?

Is it possible to feed the turbo from the stock oil pressure sender unit location on the lower portion of the engine block? Would that supply the right amount of oil/pressure?

 

Screw extractors are total pieces of crap. They do exactly what happened to you. The only thing that may have saved you was that you should have drilled the extractor hole out to just smaller than the threads of the old bolt and used a bigger extractor. You won't be drilling that broken out one though cause as you've found out they are harder than most drill bits. The only way to try and get it out now it to take a sharp punch and hammer and try to spin the leftovers out. Do this by placing the point between the broken extractor and the edge of the hole on the broken bolt at an angle so that when you tap it, it will cause the broken bolt to spin counterclockwise (same direction it screws out). Move the punch to several locations around the perimeter of the bolt as you hit it. If that bolt's threads are galled into the hole though you probably won't get it to budge even with a pick. If that doesn't work you need advice from a real machinist on what to do. That is how I get all my broken bolts out now--SCREW SCREW EXTRACTORS!!

 

yeah that's what I figured. So is there no other place to feed a turbo from on our engines without having to tap a new source ourselves? Like I said above, there's a little hole directly behind the orginal allen screw that I found in the second picture, as well as the original sender unit location on the lower block. Would these not work?

 

Hey man i'm not sure what the answer is, I think that bolt behind the first one is undetermined, BUT if you read through my topics I should have one about oil feed and it has all of the turbo guys on here's responses because I was in the same situation as you but I finally got mine out with an easy out.

 

ah thanks KT. I honestly could not find a thread on this, but thanks for the info. Where did you end up getting the feed from?

 

Im not sure if anybody's ever used that particular opening as a tap, and im sure you dont wanna be a guinea pig.

Your only two options would be to remove the bolt that is in the center of the head above the exhaust manifold; denisst099 posted the size in a thread but i forgot which one, i could find it but im at work right now.

The other option would be to use an oil restrictor and to T off the oil pressure sensor thats in the block behind the turbo.

 

You need to heat up the plugs that are on our motors. Same for the head and block. I fought with one plug on the block. Next one I hit quick with the torch and it came out easily. You need the heat to break down the sealer.

 

Sucky situation indeed! There is no way easy you can remove that broken off screw extractor and that plug now.

Do a tee on where the oil pressure switch is on the block and run a -3 AN sized fitings and same small diameter oil feed line and it'll be fine

 

Thanks for the advice all! I'm pretty sure that unless I take the head off and somehow get it to a machine shop, I've pretty much screwed myself for that tap. But not to worry! I am not easily discouraged lol. Well, moving forward, like many of you have said, I can either tap from the plug above the exhaust manifold, or I can tap from the pressure sender plug on the block. Any opinions on the matter? I believe somewhere I read that running a feed from the block flows too much oil or something. Anyone know anything? If not, I'm going to run the line from the stock oil pressure sender location on the block just because I already have all the required fittings lying around.

Thanks again to everyone! fing02.gif