Can you drill and tap the manifold for an EGT with it still installed??

[eightballrj]

I know this wont be the easiest task. But, can it be done. I just got my uppipe to seal properly last weekend. I dont wanna screw it up now. Thanks for the input in advance.

RJ

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[Got Groceries?]

Yep. I've seen it done (not to my car). The real trick is getting a hole drilled in the heat shield that lines up with the one you drill into the manifold. That and getting the shavings out of the manifold before you fire it up.

The procedure I saw was: drill the hole, stick magnet through hole to pick up the bits inside, tap hole, more magnet, drill heat shield, grind hole in heat shield larger, grind heat shield some more ...install EGT sensor, install heat shield.

Good luck!

[jjunior887]

you really shouldn't because of the small shavings that would end up inside your manifold that possibly could cause problems. you could just do the EGT sensor on the drivers side manifold instead, alot of people say it works just fine there. -James

[teiva-boy]

You could, but the question you have to ask yourself is is it really worth it?

It takes an extra 15 minutes to loosen your turbo from the top that way you can retighten the uppipe in the correct sequence to prevent leaks. I would rather drop the manifold then risk having metal shavings pass through the turbo blades.

[digitaltekniq]

eightball - you should also read this : http://forums.nasioc.com/forums/show...hreadid=331029

Seems # 4 is more likely to fail than #3, and it's on the drivers side

Just a thought

[MNbiker]

You could, but it's pretty darned easy to take off the manifold. Save the potential grief & do it right!

-Steve

[DocDetroit]

It's much safer on a normally apirated car. The shavings just get blown out of the exaust (if we ignore overlap and reversion ). On a turbo charged car those little bits of metal have to go out through the turbocharger.

[Davenow]

Taking the manifold off takes all of 5 min.
if you didnt know that, why didnt you SEARCH
seriously though, dont do it on the car. bits of metal WILL get in your turbo.
Not to mention how much harder it will be to drill it on the car as opposed to on a bench/ground

[eightballrj]

Hey,
I have one question. I was just wondering why it is such a pain in the a$$ for someone to give their honest opinion without saying, "You should have done a search"?? I live on this forum. I probably do dang near 25 searches a day on various subjects to learn as much as I can about particular things relating to the car. Why, since you already took the time to post, can't you just give your honest opinion, which might take maybe 60 seconds longer. But, I DO APPRECIATE THOSE PEOPLE WHO DO TAKE TIME OUT TO HELP A FELLOW I-CLUB MEMBER WITH A VERY SIMPLE QUESTION. If anyone gets mad at me for saying this, I am sorry in advance, I dont mean to ruffle any feathers. I just dont see how it could be that hard to just say,"Hey man I dont think you should do the drilling and tapping on the car, just take it off and do it on the ground or in some vice-grips or something. You didnt even have to say, hey man do a search. Because, You know what... If people only did searches. WE WOULD ALL STILL HAVE TXS STAGE ONES AND VS 0'S BEACAUSE NO ONE WOULD ASK QUESTIONS ON NEW STUFF. I WILL SAY THAT I LIVE IN THE SOUTH. MOST OF THE PEOPLE THAT I KNOW, IF I AM IN THE APARTMENT PARKING LOT WORKING ON MY CAR, WILL COME UP TO ME AND ASK IF I NEED ANY HELP WITH WHAT IM DOING. SEE, THESE FORUMS ARE HERE TO HELP PEOPLE NOT TO HARP ON PEOPLE THAT MAYBE DIDNT KNOW ABOUT THE SEARCH ENGINE OR WANTED SOME UPDATED INFO.



I AM TOTALLY SORRY TO ANYONE THAT HAS NEVER USED THIS PHRASE AND JUST TOOK THE TIME TO READ ALL MY RANTING. I JUST, LIKE I SAID DO A LOT OF SEARCHES, AND MANY MANY PEOPLE SAY THIS VERY REGULARLY TO PEOPLE WHO JUST ASK INNOCENT QUESTIONS.

Thanks,
RJ

[teiva-boy]

[JimmyOOOOO]

Originally posted by teiva-boy

Mitch, you are evil

[eightballrj]

Man,
Is that where that key was?? Crap, I forgot.


RJ

[Need4Boost]

Take the manifold off before you drill. The shavings you leave in there will run right up into the turbo. Have fun buying a new one. Why risk this when the manifold can be removed in mins? The heatshields are far from being hard to remove/reinstall.

[Wheeler Bement]

also make sure you use "liquid wrench". the last thing you want to do is screw up one of those manifold nuts. I just replaced the up-pipe on my car, had a small leak, decided to fix it by lossening all the bolts. the first bolt on the up-pipe i did went about a 1/2 turn and locked. i decided a small leak was ok for the time being, so i tried to tighten it up. it went a 1/4 turn back and locked. i could not even get the bolt tight. i had no choice but to fight that bolt for 45 min. with a big cheater pipe to give me enough room for my dremel tool. lets just say it sucked @$$. USE LIQUID WRENCH and let it sit, then spary t again. you can never use too much. I also added the anti-sieze to everything after that as well. the leak is gone though

[supermarkus]

Well, technically, the bits of metal have to go past your catalytic convertor, which would be pretty tough depending on the size of the shavings. Unless of course, you have a catless up-pipe. Then you're sure to get metal through your turbo. But as others have said, it's a bad idea. A correctly built up-pipe shouldn't be too hard to properly seal, just make sure you get your torque sequence right.

Oh yeah, liquid wrench/pb blaster/anti-sieze= mother's milk.

[Davenow]

(if you searched you shouldnt have even asked)
Taking the manifold off is a 5 min process. Why would you do it any other way, when there are risks like killing your turbo?
I wasnt saying it to be a jerk.

[2000vfr800]

Just my comments on the searching thing...

Sure, when I was first here, I asked some really noob questions and got the "do a search" replies. And yes, I thought why wouldn't someone just answer the question.

Well, after being here for over a year, pretty much checking it 5-10 times per day and trying to help out everyone I can, it get's frustrating seeing the same questions come up every month, week, or even day. I want to help...I really do. But, I am so busy right now that I don't even read and post to some threads that I probably know the answer to just because I KNOW that I, or other people have answered this VERY same question 15-20 times.

So, the "do a search" reply is to just and try to get people used to searching for something before asking. And the more you use the search tool, the better you are at it and it allows you to find the information that you are looking for in less time it would take you to post you question in the first place. Plus, you will also get other information that might influence your decision. For example, in this case, if someone just came back and said "You should just remove it and do it that way." and that was the end of the thread, you might never have thought about tapping a different location (like cylinder 4) to get better results.

I hope this doesn't sound like a rant, and I'm sorry for hijacking this thread for a moment, but I just wanted to express my thoughts on the comments above.

Anyway...my answer to the question: since I just had cylinder 4 fail on me (diagnosis not complete yet), I would remove the driver's side manifold and drill and tap the port for the 4th cylinder like AZScoobie said in the other thread. And clean out the manifold when done so none of the chunks go into your turbo.

[TCENGEL]

Just leave the car running and drill very slowly. Won't cause any problems at all. I've done it twice now.

[eightballrj]

Davenow,
Well, I did a search. I didnt do a search on, I have a good uppipe seal now after i couldnt get one for 3 months and dont want to disconnect the uppipe. I dont think that was an available searchable topic. But, reguardless, I disregard the whole search thing because some of the other guys gave me a great alternative (take the driver's side manifold off). Also, thank you vfr800 for the explanation, that really does help me understand the statement. I TOTALLY agree with you. I mean if I said, "Hey, would a mbc give me ptfb problems?" I would expect to be flamed to a crisp for not searching. But, my topic was not beaten to death. Now, I think I am done with this thread!!


PS. THANK YOU to the guys that gave their honest opinion in an effort to help me solve my problem!!

RJ

[DocDetroit]

Originally posted by TCENGEL
Just leave the car running and drill very slowly. Won't cause any problems at all. I've done it twice now.

Statistically you can play russian roulette an average of 3 times before you lose. Doesn't mean I'd play.

[JimmyOOOOO]

you can get a good look at a steak by sticking you head up a bulls a55, but I'd rather take the butchers word for it...

[jjunior887]

Originally posted by JimmyOOOOO
you can get a good look at a steak by sticking you head up a bulls a55, but I'd rather take the butchers word for it...

I love that movie

[korpse]

Originally posted by TCENGEL
Just leave the car running and drill very slowly. Won't cause any problems at all. I've done it twice now.

A lot of DSM guys use that technique. I've never heard of anyone having an problems, as the shavings are immediatley blown out the hole by the exhaust gases.

[mrmcderm]

Originally posted by korpse


A lot of DSM guys use that technique. I've never heard of anyone having an problems, as the shavings are immediatley blown out the hole by the exhaust gases.

Hmmm...well I also own a DSM, and frequent the DSM forums, and I have noticed the DSM guys tend to not be the best example of proper technique.

The instant the drill bit breaks through the inner wall, you're going to get metal shavings sucked up into the exhaust tract. Will a couple of shavings hurt the turbo at idle? Probably not. But it really is worth taking the manifold off.

Just a suggestion.

- m