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Topics - TTA1326

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1
For Sale/Trade/Want To Buy / WTB: TTA Heads and rear Turbo decal
« on: July 17 2016, 09:59:12 PM »
Looking for almost anything in heads at this point.  OEM or 25527515 castings.  Stock or ported.  And of course a rear Turbo decal...

2
General Buick Tech / What would you do?
« on: July 07 2016, 06:58:44 PM »

TTA #1326 has been parked for nearly 3 years now. It started with a new Limit Stage 5 TA61 that I ran at only 18psi for quite a while. I finally decided to turn it up into the 25psi range and bought a chip from Eric to do it. As I turned it up 1psi at a time it went lean on the Power Logger around 21-22psi, don't really remember. A fuel pressure gauge on the windshield showed me 2-4 psi LESS than it should have on 3 blasts. Julio's alky kit apparently covered it though, because I had zero KR. The car had\still has a roughly 12 (now 15) year old Red's XP pump in it (with a hot wire) and got parked due to wife's health problems among other things.


Now, I'm trying to figure out everything to get it running. I have a DW300 fuel pump from Nick and a Racetronix tank harness that wasn't available 15+ years ago. Of course I have a fuel filter, plugs, oil and filter, battery, etc (spring cleaning). My memory sucks (fact), so when I uncovered the car and pushed it out of the garage was my first remindered that it had developed an oil leak before I parked it. The back of the car is black. I also found new front rotors and AC pads in the back floor board lol.


I know it needs the timing chain replaced (age and 93K on the car now). I also know that means building the front cover, oil pump, cam button, etc. The valve cover gaskets are fresh, the engine is clean topside and appears to only have oil along the pan rail, so I'm only guessing it's the common oil pan and\or rear main seal that's leaking oil, which puts me into overlapping work with the timing chain.  So anyway, I'm not EXACTLY stupid, but I am wondering which way should I go!  So many problems lol...


Note: I've read as many posts as I can find on everything I'm going to ask, but I don't think I'm going to clean up the engine and start it up to find the oil leak.  It hasn't been turned over in 3 years and I kind of want the timing chain out BEFORE it's running.  If that's extra work, so be.  It's the price of admission with these cars as far as I'm concerned.  But...




1 - Should I do this in the car?  Front cover, timing chain, oil pan, and possibly a rear main seal? Or just yank it out? If have to pull the intercooler and so many accessories to get the cover off, there won't be much left to get the headers off and pull the shortblock.  However, I've done worse in various cars when I was 20 years younger. TPIS heads, cam, etc, on a '96 Ram Air for instance.


2 - If it's coming out, "IF", then I'm going to do head gaskets. The car hasn't had head gaskets since 1991, under warranty at that. I like telling folks the short block has NEVER been out, but if it's coming out for the first time, it's getting head gaskets. Yes or no?


3 - Since I might be looking at some or all of the above crap, I'm going to do a leak down test on all cylinders before I do anything else. I guess I'll disconnect the ignition, put in the new battery, and spin it over until it has oil pressure, then check all cylinders? Or do I need to put something in each cylinder? I've only done this test once before on a BBC that was running fine, but had a miss. Turned out to be a bent pushrod in that case.




Alex


EDIT:  Mods that I can remember...


Stock long block, Limit TA61 Stage 5 with .63 Garrett, 3" downpipe, Dump pipe, 3" Hooker exhaust, Valve springs, 62mm throttle body with block off plugs, ported plenum, RJC Power Plate, RJC Hybrid boost controller, Red's XP fuel pump, Billet AFPR, Hot wire, ATR PVC valve, Double VC breathers, MSD plug wires, Alky Control, Power Logger, 9" K&N, LS1 IAT sensor, CK shift kit, 240a Alternator, Billet thermostat housing, Turbo Tweak chip, 50lbs Injectors



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