Need Help - Restoring T-type to 100%

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jspeed86

New Member
Joined
Jun 7, 2004
Messages
51
I am in the process of helping my Dad fix up his 1986 T-Type to perfect operating condition. The car is not running like it used to, and definitely needs some attention. I know this for a fact because I found some very disturbing problems earlier this week. First I will give you the background on the car and then tell you what we want to do. I don’t have a lot of experience with Turbos, so that is why I am here.

Like I said, the car is an 86’ T-Type with 71K miles. The car is completely stock with no modifications. It has never been wrecked or changed in anyway. The interior of the car is near perfect and has the regular aging on the outside, chips, etc…. For its age, it is in great condition. It has the moon roof and bench seats. Could someone tell me what the deal with bench seats is, I thought all T-types had buckets? Anyway, back to the problem. I was cleaning the car for my Dad last weekend and decided to open up the Air Filter to see if it was dirty. It was extremely dirty, so we got a new one. Then I wanted to open up the rest of the intake and take a look at the MAF. When I got there, I found metal flakes, NOT GOOD. When I looked down the air tube leading to the Turbo I saw a nut laying at the very end before the Turbo, VERY BAD. Well, somehow, the nut that goes on the spindle part of the Turbo had come off. I’m guessing that the metal flakes had come from the Turbo. We put it back on and hooked everything back up. I took the car for a spin and it seemed fine until I hit High boost. I could hear a noise coming from the Turbo, plus it didn’t seem like the car was doing much good either. Just didn’t have the power it used to have. The noise sounded like an old fan belt that was slipping when you get into the throttle. Kind of a buzzing rubbing noise. Anyway, the car just didn’t have any power at all, except at take off speed, up to 2nd gear.
We want to do a serious tune up. Replacing everything from the Fuel Pump to the Injectors. The engine itself seems fine, so all we want to do there is Injectors (maybe a little bigger), spark-plugs, and clean the Intake. I’m guessing the Turbo is bad and will need to be replaced. So basically, if anybody can give me some help, I would appreciate it. I would like to know what to buy and how to go about it. My Dad wants the car to run a little better than stock form, but nothing crazy. Let me know what you guys would do. Thanks in advance for your help. Also, we are on a budget, but we don’t want crap either. I really can’t wait to get this thing back to its bad butt self. I have a lot of good memories in this car when I was a kid because he bought it when I was 12 years old back in 1989. I remember the first time I drove it when I was 16; Man what a Rush….
;) :D :cool: :)
 
daa turbo needs help!

Yep! Call Jack Cotton. Good stuff. Great help. He will work with your budget. Jack is one of the most trustworthy in the Buick turbo biz! :D
 
Two bench seats were offered. One was standard, the other optional (55/45). In addition, buckets were an additional cost option.
 
Probably a TA49 (slightly bigger than stock) turbo, 36 Lb. injectors (stock injectors are 30 Lbs) and definately get a walbro 340 fuel pump and get a hotwire kit for it. stock fuel pumps and pump wiring in these cars suck. get a new chip for it to go with the injectors. and you would really benifit from having a scan tool to tell you what is going on with the engine. thats a good start. Normally everyone would point you to GNTTYPE.org for info but their site is down temporarily. read all you can on this site.


bob
 
tuner up

:D Don't forget the billet adjustable fuel pressure regulator and adjustable waste gate and the vacuum/ boost guage and I like turbo link to keep track of what's going on. Check with Jack Cotton...
LINK TO GNTTYPE.ORG = www.rennie-macintosh.com :D ;)
 
Well, it sounds like you tore up a turbo. I had that very same thing happen to me, exactly as you described it.

One thing I would take notice of is the oil getting to the turbo. It's possible your turbo tore up because it wasn't getting enough/any oil. That's what happened in my case and it took my two turbos to figure it out. :( Make sure you have a good oil supply line. Clean. Preferably new. Also, there is a brass "T" that supplies oil to the turbo and to the oil sender switch. Mine actually got clogged up with material from the timing chain which is made of nylon. You may want to pay close attention to that as well before you just 'throw' another turbo on there.

I'd check your oil filter and your oil and see what they look like. Hopefully the engine hasn't ingested any of the fragments from the impeller blade.

As for a scan tool and such, if you don't want to buy one right now, perhaps someone in your area has one you can take a look at?

Really take a good look at the spring cleaning link for good advice on what to do to get the car in better shape.
 
IMO your stock car will be worth more if you keep it stock. Rebuild the turbo and replace all defective parts, from one end of the car to the other.
Many vendors out there that will have all replacement parts.

Kirban Performance Products offered some books giving the History on Turbo Buicks. Very Helpful. Kirban offers many replacement parts as well.

If you want a "hot rod" Turbo Buick buy one already built. Seriously
 
Thanks everybody for the great Info!!! I will put it to good use. I guess I will keep it stock, and just make everything like NEW.

Also, this car has the 55/45 bench seats.

Now I have to figure out all of the stock part numbers... I will check out the sites you mentioned. Thanks Again Guys...
 
Keep it stock EXCEPT FOR THE FUEL SYSTEM. The OEM fuel pump is not good enough, and the OEM wiring is not good, either. So if you're replacing the fuel pump, go ahead and get a good one, like a Walbro 340, and hot wire it. Stock air intake is pretty bad, too. You can get a center section for the turbo for just a few hundred dollars, without going big on the turbo. Porting the stock elbow is good, too, and adding a Duttweiler neck to the stock intercooler is a good low cost mod, and doesn't change the stock "look" very much. And the stock computer chip should be replaced, too. (Pretty much a requirement if you go with bigger injectors, although the stock chip works Ok with 30 lb injectors)
 
I like Ormand's advice for a stocker. You can make a "stocker" pretty damn fast. A chip for 93 octane is a must. I call these obvious mods still stock. :cool:
 
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