Still leaking?!!!!!!

HotRoddin · 03-22-2005, 02:24 AM

If you were leaking at 75 ft lbs under light load (idling or just easy driving), then you have problems other than the correct torque on your head bolts.

What is your engine, head, gasket combo ?? Can you tell what area it's leaking from ?

Somethin ain't lining up !

~The Jester~ · 03-22-2005, 07:57 AM

Went out to the shop last night, it's called "555 Select-Unyte"

Gearhead999 · 03-22-2005, 06:41 PM

Is it leaking external from where?? Is the intake mating up OK??
Has the block been decked?? Mayber too much??

Are any of the headbolts holes showing signs of "puckering up" around the edge of the threaded holes in the block?? Need to be relieved there. Are any of the headbolts "mushy" when you torque them?? Not holding the torque good.

If everything is flat, the headbolts are good, the treads are sealed, the intake meets the heads correctly and the gaskets are correct....well something has to be cracked.

Wish you were closer. Hey, you'd be warmer !!!! I had a 289 in my shop doing similar antics. Fill up crankcase and fill up intake manifold with water. Cylinder heads were machined too much and they wouldn't seal. Have seen Ch**Y's do that, but they had angle cut heads to up compression ratio, too much too.

I'm interested to hear what fixes it, besides a stick of TNT.

rwhite65 · 03-23-2005, 12:59 AM

I like the idea of letting it sit over night before filling up the coolant system. I also wonder if the head bolts aren't getting stretched by this point. I am seriously interested in hearing the fix for this.
keep us posted!
Ryan

USMC302 · 03-23-2005, 07:16 AM

Quote:

Originally Posted by HotRoddin

If you were leaking at 75 ft lbs under light load (idling or just easy driving), then you have problems other than the correct torque on your head bolts.

What is your engine, head, gasket combo ?? Can you tell what area it's leaking from ?

Somethin ain't lining up !

331, decked, with the TW aluminum heads non-o-ringed, with the felpro 1011-2 (copper ring)

the leak is coming specifically from between the head and block, where the mate, between the 4th and 5th bolt locations. Yes, block has been decked, I didn't know you could do it too much... I had it done by a reputible place. Bolts actually feel good, there new ARP bolts, maybe I should go studs...?

~The Jester~ · 03-27-2005, 08:11 AM

This be the stuff. The "555" is better, made by the same company. But, if you can't find it, this should get you by.

andy669 · 03-27-2005, 09:21 AM

I must have missed where you said what size bolts you are using. 95 ft./lbs is way too much for a 7/16 head bolt. I use 70 (for a 7/16) with oil between the head of the bolt and the washer. On the blind holes I use oil on the threads, and thread sealer on the ones that go in to the water jackets. Never had a problem.

Andy

82 GT · 03-30-2005, 08:04 PM

This might be a dumb question but are the head bolts being tightened in the correct pattern?
Nobody asked yet so I thought I'd ask to eliminate the obvious.

Dark_5.0 · 03-30-2005, 09:08 PM

Quote:

Originally Posted by 82 GT

This might be a dumb question but are the head bolts being tightened in the correct pattern?
Nobody asked yet so I thought I'd ask to eliminate the obvious.

Quote:

Originally Posted by USMC302

Here's the short..... 88 stang new EFI 331, block tested and decked, TW aluminum heads. First build, it leaked water from both head gaskets external and internal, followed torque sequence

..........

82 GT · 03-31-2005, 12:23 AM

Oooops...my bad

03-22-2005, 02:24 AM	#1
HotRoddin cranky old man Join Date: Sep 2001 Location: Longview Texas Posts: 683	Re: Still leaking?!!!!!! If you were leaking at 75 ft lbs under light load (idling or just easy driving), then you have problems other than the correct torque on your head bolts. What is your engine, head, gasket combo ?? Can you tell what area it's leaking from ? Somethin ain't lining up ! __________________ Under Construction: 64 Falcon 372 cu in. stroker 1:72 rod ratio 6.250" rods (long rod), Comp Cams XE274 230/236 520/526 @ .050, Scorpion Rollers, Roush 200 irons, 10:1 Keith Blacks, Hedman long tubes, 750 Holley DP, Edelbrock Victor Jr., C4 3500 stall, gears and tires to be anounced.

03-22-2005, 07:57 AM	#2
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Still leaking?!!!!!! Went out to the shop last night, it's called "555 Select-Unyte" __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

03-22-2005, 06:41 PM	#3
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Still leaking?!!!!!! Is it leaking external from where?? Is the intake mating up OK?? Has the block been decked?? Mayber too much?? Are any of the headbolts holes showing signs of "puckering up" around the edge of the threaded holes in the block?? Need to be relieved there. Are any of the headbolts "mushy" when you torque them?? Not holding the torque good. If everything is flat, the headbolts are good, the treads are sealed, the intake meets the heads correctly and the gaskets are correct....well something has to be cracked. Wish you were closer. Hey, you'd be warmer !!!! I had a 289 in my shop doing similar antics. Fill up crankcase and fill up intake manifold with water. Cylinder heads were machined too much and they wouldn't seal. Have seen Ch**Y's do that, but they had angle cut heads to up compression ratio, too much too. I'm interested to hear what fixes it, besides a stick of TNT. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

03-23-2005, 12:59 AM	#4
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: Still leaking?!!!!!! I like the idea of letting it sit over night before filling up the coolant system. I also wonder if the head bolts aren't getting stretched by this point. I am seriously interested in hearing the fix for this. keep us posted! Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

03-27-2005, 08:11 AM	#6
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Still leaking?!!!!!! This be the stuff. The "555" is better, made by the same company. But, if you can't find it, this should get you by. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

03-27-2005, 09:21 AM	#7
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: Still leaking?!!!!!! I must have missed where you said what size bolts you are using. 95 ft./lbs is way too much for a 7/16 head bolt. I use 70 (for a 7/16) with oil between the head of the bolt and the washer. On the blind holes I use oil on the threads, and thread sealer on the ones that go in to the water jackets. Never had a problem. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

03-30-2005, 08:04 PM	#8
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Still leaking?!!!!!! This might be a dumb question but are the head bolts being tightened in the correct pattern? Nobody asked yet so I thought I'd ask to eliminate the obvious. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

03-31-2005, 12:23 AM	#10
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Still leaking?!!!!!! Oooops...my bad __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

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