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Old 12-26-2012, 01:46 PM   #81 (permalink)
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I've heard a lot of good things about the Brad Penn. Maybe I will have to try it out in the future. For now, I got Castrol straight 30 and a K&N filter (as always). I bought one of the nifty handheld torches. I'm eating lunch now waiting for the car to cool down a bit. I decided I am going to do the turbo swap, SS oil lines (at least the rear), and change the oil today instead of waiting for the weekend I'll probably update with pictures of everything tonight or tomorrow.
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Old 12-26-2012, 01:57 PM   #82 (permalink)
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Default Re: My 1992 3000GT VR-4 Rebuild.

Cool beans, I like your drive and dedication.

PS. Did you toast that sandwich with the torch?
I have a few times lol.
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Old 12-26-2012, 01:58 PM   #83 (permalink)
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Lol. I did not. I will have to try it though.
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Old 12-26-2012, 02:53 PM   #84 (permalink)
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Apart in about 30 minutes. All I have to do is drain the oil, take the precat off, oil lines, then the turbo.

And for another noob question. Wescott, I have oil in my intake again and my rear valve cover is leaking. My PCV is fine. It is about 1/2 overfilled. When I change the oil I SWEAR I don't overfill it. I fill it up to the full line, crank it and let it run for about 5 seconds or so to circulate the oil, turn it off, wait about 5 minutes to let the oil come down from the heads to the crankcase, check it and it is still at full. I have tried filling it to about 1/2 quart low, crank, wait, check and add oil, repeat, repeat, etc to ensure I am not overfilling. I can check it the next day and it is 1/2 quart overfilled. There is no coolant in the oil and there is no fuel. It is just oil. WHAT AM I DOING WRONG? Am I not compensating for something? I feel like such an idiot.

Now I have to spend a couple more hours cleaning the oil out of my intake and fixing my leaks. Great.
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Old 12-26-2012, 03:14 PM   #85 (permalink)
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Default Re: My 1992 3000GT VR-4 Rebuild.

while you have it down that far it's a good dea to pull the valve covers (wich you are going to do anyway) and run some pipe cleaners or something behind the baffles inside.

Over the years crud can build up inhibiting the free return of any oil that gets splashed up in there.
^^^major contributor to oil being sucked thru the vent and PCV.
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Old 12-26-2012, 04:36 PM   #86 (permalink)
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I would check your heads for casting material. I have seen blocked ports from flashing left over from the casting process. Look for loose or weak material and blockages. Something that is often overlooked when rebuilding an engine and not something a machine shop generally checks. It is hard to correct without pulling the heads to properly grind off or remove larger pieces that are not solidly attached.

Here is a video that I found that documents this very problem. Its on a DSM, but very similar to our engines. They use the same rockers and lash adjusters as our cars.

Check for excess puddling when you pull the valve covers. The quicker you pull them after running the engine, the better chance of actually seeing a restriction.

The 2 minute 30 second mark is the money moment!!!

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Old 12-26-2012, 08:42 PM   #87 (permalink)
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Okay so I hit a major hold up. The 13g exhaust wheel won't fit in the 9b housing that I planned to use. I thought it would fit since it isn't an "L" or "HL" wheel. I don't know how I didn't notice, but it turns out that the exhaust housings are different. The 13g housing won't fit in the back turbo position. I have it clocked and the housing hits the head and won't mount to the manifold because of it. I will either have to put it all back together the way it was before or get my 9b housings bored out tomorrow.

Edit: Or I can take the front turbo, clock it and put it on the rear and put the 13g on the front. It was in the front before I took it off the spare engine I have so it will fit.

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Old 12-26-2012, 10:41 PM   #88 (permalink)
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Default Re: My 1992 3000GT VR-4 Rebuild.

Quote:
Originally Posted by Djmba View Post
Okay so I hit a major hold up. The 13g exhaust wheel won't fit in the 9b housing that I planned to use. I thought it would fit since it isn't an "L" or "HL" wheel. I don't know how I didn't notice, but it turns out that the exhaust housings are different. The 13g housing won't fit in the back turbo position. I have it clocked and the housing hits the head and won't mount to the manifold because of it. I will either have to put it all back together the way it was before or get my 9b housings bored out tomorrow.

Edit: Or I can take the front turbo, clock it and put it on the rear and put the 13g on the front. It was in the front before I took it off the spare engine I have so it will fit.
You must be bummed. At least you found out early and you still have time to fix it before the end of the weekend.

Swapping turbo positions sounds like a real pain but it won't cost you anything but time. I know you are itching to finish the upgrades.

Glad the torch made your job easier.

I still have not gotten my oil pan. I called today to check on the status.



Wish I could be there to help. I have to take my male blue ticked beagle in for a splenectomy on Friday morning. He has been fighting a bad infection for over a month. We are hoping this will fix him. The ultra sound seems to point to a growth on it. We have switched his antibiotics twice already. (Could have bought my Megan's and new paint for the cost of surgery!!!)

Anyway, keep us posted and stay calm. I know the rear turbo can really cause your blood pressure to rise so be patient. You will get it handled.
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Old 12-27-2012, 01:57 AM   #89 (permalink)
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I'm so pissed. I spend almost 4 hours removing the front turbo. The last time I took off the precat I broke a bolt so I got a smaller bolt, a nut, and some washers and used that going through the precat to the turbo. It worked great. Until I tried to take the damn thing off. It was in the absolute worst spot out of the 4 bolts that holds the precat to the turbo. I had no room at all and it seized, and would absolutely NOT move at all, leaving the precat and turbo stick together. I tried bringing the whole thing out of the bottom. Didn't work. Tried to break the bolt loose. Didn't work. Tried unbolting the radiator and shifting it. No go. Tried breaking the bolt loose again. Nope. I wound up being able to shift it sideways. I grabbed my impact to try and get the bolt loose. STRIPPED THE DAMN THING. I was finally able to take the lower radiator hose off of the water housing and bring the whole turbo assembly out by the air filter. I had to clamp vice-grips on the bolt and a breaker bar to finally break the bolt when it was out of the car. So stupid. Today's project failed miserably.

I decided to take the front turbo off, clock it and put it on the rear and put the 13g on the front for a couple of reasons. I have an exhaust leak by the front O2 where the precat connects to the turbo because of a broken bolt and it is messing with my O2 voltage and don't have another 9b exhaust housing to put on the front to fix it so the 13g can go there. Both turbos will be out of the way and I can install the front and rear solid mounts I have easier. My front 9b is fairly new (rebuilt) and my rear has lots of shaft play (they were rebuilt at the same time but something hit the rear compressor wheel). I was already halfway there and I didn't want to have pulled the rear turbo for nothing. Turbo clocking is free whereas machining the turbo housings to fit the 13g isn't. The 13g will give me more powa It isn't the easiest option but I feel it is the best option. Hopefully it will be back on the road tomorrow.
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Old 12-27-2012, 02:53 AM   #90 (permalink)
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Default Re: My 1992 3000GT VR-4 Rebuild.

Man that sux! I looked at my front one while I was changing out the radiator and O2 sensor. The sensor was bad enough, took me weeks to change. Broke an O2 socket, bent a ratchet and screamed a lot. Finally dumped 2 cans of liquid wrench on it over 4 days and bought a heat gun and sat there with it on high for an hour. The entire time I was looking at that turbo saying " One day I have to take you off.....I know it won't go well and bolts are going to snap off". I dread it more than most things on my car. The only things that top is are spinning a bearing and toasting a tranny.
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