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blown cometic
or just leaking? Putting a little water in #1 and compression is down about 20lbs in that hole. Also leaking out the side of the head. has about 1300 easy miles on it.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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yes I did. No change.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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it did blow. 24lbs, 0 knock showing on the FAST. what gaskets do I use now?
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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Quote:
Billy T. gnxtc2@aol.com
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1987 GN w/ TA Block and heads Other vehicles - 1997 Ford F250HD Powerstroke (daily driver) - 2004 Mercury Marauder #956 out of 3213 Pictures If you can read this, thank a teacher. If you can read this in English, thank a Vet. ![]()
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where heads prepped with RA50....been issues without proper head and block prep
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Sean Ryder aka gbsean on all the boards Buick Performance Group Chairman www.buickperformancegroup.com 11.599 @ 119.91..with issues |
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ra50 on heads and block. 10.94 A/F, 19 on the timing after 4200rpm, duel nozzle alky. heads torqued at 70lbs ,arp studs. Went to 80 to see if the leak would stop. RJC gaskets on the way. Car still ran pretty good.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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several people (myself included) have had to take apart the Cometics and spray the layers with copper coat or hylomar. I have no leakage issues at all. hope this helps.
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Jeremy DSR Member #82 http://community.webshots.com/user/jpwalt1987 http://evadaleraceway.com/index.html ”The Constitution shall never be construed to prevent the people of the United States, who are peaceable citizens from keeping their own arms…”~Samuel Adams If you're gonna be stupid....you better be tough!! |
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It blew the gasket, to late to copper coat it.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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+1 on the pics, really interested, take a few macro pics if could. I can pass you my e-mail if it is easier.
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Pullin' like a freight train, Flyin' like an airplane, Been drinkin' gasoline, And honey you can make my motor hum... |
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no pics right now but to compare to a good gasket , it wont lay flat on the cylinder that let go , the metal stretches and warps
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paul - MAGNA NJ rep the 86GN bests 1.41 6.57 105 10.41 129.8 bone stock shortblock ,71GTQ, msbc-1, V2, ported irons ,tt6.0wb 75# ... now extremeauto th400 w/brake , vig converter, FAST, 83s =cracked #3 piston the 87GN , 11.31 ,120.9 TE44, duttneck, weber CNC raceport irons w 1.65 T+D, msbc-1, tial38, hi-pro,protorque, TT 55# through aerochambers big thanks to julio at alkycontrol.com eric at turbotweak.com A little fun with the GNs at Atco video |
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here you go. head studs, 83lb inj.Number 1. Bad gasket? Bad luck?
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... Last edited by SIXBANGR; July 7th, 2009 at 10:42 AM. |
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I would flow test your injectors and have a look at your spark plugs wires.
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Mike Ricketts ![]() DLS ENGINE DEVELOPMENT 886 E 900N, Wheatfeild, IN, 46392 219-956-3653 HARTLINE PERFORMANCE 321-722-1563 My Track passes http://www.youtube.com/watch?v=mKEIyppgOr0 http://www.youtube.com/watch?v=6SqbYtfQn8c |
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who does the inj., and how much?
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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Chuck Leeper
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Much Thanks to: Eric Marshal, Grumpy, Russ, Razor, WickedV6, Dr.Boost, RUQUKNF, TurboT990, Kevin B, Bison and a host of others!! 85 T-Top GN(LC2) 109, Iron Heads, Alkycontrol, Stock Suspension, Scanmaster, Stock ECM, and Stock Wheels 1/4 E.T MPH
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Were you using oil or ARP lube when torquing to 70 lbs. If using oil 70 is a little low. Although I doubt that's your problem. As stated have injectors flow checked also check the injector driver in the ECM.
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Scott Atkinson / White 87T 109 / 9.56 @ 142.8 / 1.38 60ft. |
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ARP lube. Just pm'd Leeper. Using a classic FAST.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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Quote:
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Sean Ryder aka gbsean on all the boards Buick Performance Group Chairman www.buickperformancegroup.com 11.599 @ 119.91..with issues |
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I wouldn't be blaming the gasket on that one. It appears you lost clamping force for whatever reason. A tuning issue, most likely. How much has been taken off the head surface? How thin are the deck surfaces?
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Donnie Originator of the Nitrous/Methanol Drag Turbo Anti Lag System Latest 60' at the start of N2O/CH3OH DT ALS tuning development: 1.479. At this point, almost a 0.20 sec advantage over simple n2o injection. 1984 BUICK Grand National 224 cid Stage I BUICK V6 burning CH3OH w/N2O, 91mm turbo. Engine/trans by DRW. Latest 1/4 mi. perf. (9/2009) w/FI91X (B/W Airwerks S510-91mm): 9.56@154.87mph w/horrible 1.67 60'. On converter (2400 rpm) @ the line, w/o pre-spooling, 0 bst @ launch, pro tree, max 26-27 psi boost. 5.04 hp/cid. Equivalent to a 500cid V8 producing over 2,500 hp. My pass @ Pinks All Out qualifying, http://www.youtube.com/watch?v=9AZumqEdMUE
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Double check the head studs/bolts to be sure they are tightening down properly and not bottoming out,That was not the gaskets fault
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![]() Now Precision turbo,F.A.S.T ,Moser Engineering, and Metco dealers!! |
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heads were milled .003. It was a non machined na109 block that I just had done 3 months ago. FAST shows nothing wrong. The inj are ready to ship, just have not heard from Chuck yet.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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it has studs right now. For some reason I have never had good luck with them.
__________________
'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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again double check that head seats all the way down on block without the gasket in place...
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Sean Ryder aka gbsean on all the boards Buick Performance Group Chairman www.buickperformancegroup.com 11.599 @ 119.91..with issues |
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just checked, it is perfect.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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And too late to re-torque it. being its number 1 and not 3,, its probably from not enough tq on the stud. 85 ft lbs is what most of us use.
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"Humble yourself in the sight of the Lord, and He will lift you up." - James 4:10 Always on 93 octane www.alkycontrol.com 813-265-1400 http://stores.ebay.com/ALKYCONTROL_W...eNameZl2QQtZkm |
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85 here and re-tq after first startup....You have Pauly in your corner....what does he say about the failure
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Sean Ryder aka gbsean on all the boards Buick Performance Group Chairman www.buickperformancegroup.com 11.599 @ 119.91..with issues |
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#6 looks like it was going to go next. When I looked at the plugs a few days be for, 1 and 6 looked rich.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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and when I researched it 3 months back it was 50/50. So i went with 70 figuring I could always go more. It's like head bolts or studs. About 50/50 there also.
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'87 GN 1 owner US NAVY '66-'70 USS Proteus AS 19 USS White Sands ARD 20 support ship for the Trieste ll Scorpion Operations Phase ll USS SCORPION SSN 589 on eternal patrol, May 22,1968 http://www.decklog.com/SSN-589.asp ...there's two dates on your tombstone and all your friends will see 'em but the only thing that matter's is that little line between 'em... |
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Quote:
One of my buddies goes 85 on the top and 80 on the bottom. His feelings.. Its always better to blow the gasket down than up. Then you get X amount with oil and X amount with ARP lube. I lube the threads, washers and three steps to 85. 40/60/85 But thats just me
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"Humble yourself in the sight of the Lord, and He will lift you up." - James 4:10 Always on 93 octane www.alkycontrol.com 813-265-1400 http://stores.ebay.com/ALKYCONTROL_W...eNameZl2QQtZkm |
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Quote:
__________________
Donnie Originator of the Nitrous/Methanol Drag Turbo Anti Lag System Latest 60' at the start of N2O/CH3OH DT ALS tuning development: 1.479. At this point, almost a 0.20 sec advantage over simple n2o injection. 1984 BUICK Grand National 224 cid Stage I BUICK V6 burning CH3OH w/N2O, 91mm turbo. Engine/trans by DRW. Latest 1/4 mi. perf. (9/2009) w/FI91X (B/W Airwerks S510-91mm): 9.56@154.87mph w/horrible 1.67 60'. On converter (2400 rpm) @ the line, w/o pre-spooling, 0 bst @ launch, pro tree, max 26-27 psi boost. 5.04 hp/cid. Equivalent to a 500cid V8 producing over 2,500 hp. My pass @ Pinks All Out qualifying, http://www.youtube.com/watch?v=9AZumqEdMUE
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When I asked Dan @DLS about stud torque he told me 70ft/lbs on all the studs. That is with ARP lube.
__________________
Jeremy DSR Member #82 http://community.webshots.com/user/jpwalt1987 http://evadaleraceway.com/index.html ”The Constitution shall never be construed to prevent the people of the United States, who are peaceable citizens from keeping their own arms…”~Samuel Adams If you're gonna be stupid....you better be tough!! |
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