Blown Head Gasket NEED HELP!! - Page 5

CUMGETSUM · 10-23-2009, 06:49 AM

I cycled mine 4 times before stepping on it and I have not had any problems so far and have drove it 7000 miles

__________________
Eating Fords and sh!ttin chevys

bmac · 10-26-2009, 03:07 PM

Same place same time? Sounds like the head is possibly warped. Also, call the stud company and see what the tq specification is from them. do it one more time, but if it blows again after tq it down like the folks in the forum stay, it's a head problem.

to ring it could help, but you are not running enough boost to even start worrying about orings. the studs are good for up to 50 or so on the stock gasket which is a REALLY FUN RIDE.

__________________
1999 dually 4x4, Edge Level 5, DD 3 injectors, Full ATS Trans and Co-Pilot, FASS150, Custom TDR Cam, ATS 3-piece Header, Custom Down Pipe, Banks High Flow Intake, Propane, 4:10 Gearing, AmSoil front to back, 5-inch exhaust, 1500 watts (I can't hear the engine)

metalli445 · 11-04-2009, 08:38 PM

Is excessive drive pressure the main reason for blown headgaskets? If this is the case and we started to buy external wastegate's would that totally eliminate the need for headstuds? What else besides excessive drive pressures cause head gasket failures?

__________________
2005 2500 QC, 4x4, Short Bed, SB 3600 DD, NV5600 6 Spd, 35/12.5/17, Amsoil 6080, straight pipe, boost fooler, Smarty TNT setting 5, Dipricol Pyro, Boost, & Fuel Press, Straight pipe, weatherguard truck box, silencer ring gone, HID's, Cobra 29 WX NW ST

Justin Price · 11-04-2009, 08:57 PM

heat causes gaskets to blow, boost causes it to blow drive pressure isn't the only thing it's one of the things. external gates would not keep gaskets from blowing

__________________
01 3500, 5 spd, edge juice w/attitude w/hot unlock, hx40/ht3b twins, bd intercooler boots, bd short shift kit, 250hp sticks, o-ringed head, pdi 3 piece manifold, 110 valve springs, billet push rods, arp studs, airdog 150. 517/979 on october 3rd 2009

Hayseed · 11-04-2009, 09:35 PM

My experience is on the 12v but here is what I have learned. Carefully check both the head and the block. Have the head magnafluxed for cracks. Then check it all again! Since you have the same place to look as last time I would pay particular to that area. I use the Cummins marine .020 over gasket and have had good luck running it at 45 psi boost with an HTT charger. Mine is torqued at 130 and it was checked after 500 miles of heat cycles. I asked my mechanic what blows the gaskets and was told that most times gaskets fail for two basic reasons (truck setup like mine that is), lots of fuel on a cold engine or lugging the engine adding lots of fuel. This causes extreme cylinder pressure. The latter is what got mine. It pulled good so I thought why downshift? Result = blown gasket and cracked head! I used the 97 to tow all the time so that is how it was setup.
PS. your pyro has to be toast! No way your engine is less than 800* when you fuel it.

__________________
3rd Gen. 06 Quad cab 3500 4X4, manual, very "smart"
2nd Gen. 97 Ext. cab 3500 4X4, manual

slightly modded
1st Gen. 93 W350 4X4, manual, my farm truck

I'm seeing a pattern here :thumbsup

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10-23-2009, 06:49 AM	#49 (permalink)
CUMGETSUM Cummins Fan Join Date: Oct 2008 Location: MI Posts: 73 Thanks: 0 Thanked 0 Times in 0 Posts CUMGETSUM's Truck Pics	I cycled mine 4 times before stepping on it and I have not had any problems so far and have drove it 7000 miles __________________ Eating Fords and sh!ttin chevys

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10-26-2009, 03:07 PM	#50 (permalink)
bmac Cummins Nut Join Date: Nov 2007 Location: Paoli, PA (outside Philly) Posts: 343 Thanks: 1 Thanked 3 Times in 3 Posts bmac's Truck Pics	Same place same time? Sounds like the head is possibly warped. Also, call the stud company and see what the tq specification is from them. do it one more time, but if it blows again after tq it down like the folks in the forum stay, it's a head problem. to ring it could help, but you are not running enough boost to even start worrying about orings. the studs are good for up to 50 or so on the stock gasket which is a REALLY FUN RIDE. __________________ 1999 dually 4x4, Edge Level 5, DD 3 injectors, Full ATS Trans and Co-Pilot, FASS150, Custom TDR Cam, ATS 3-piece Header, Custom Down Pipe, Banks High Flow Intake, Propane, 4:10 Gearing, AmSoil front to back, 5-inch exhaust, 1500 watts (I can't hear the engine)

11-04-2009, 08:38 PM	#51 (permalink)
metalli445 Diesel Freak Join Date: Jun 2007 Location: Baltimore, MD Posts: 898 Thanks: 2 Thanked 6 Times in 5 Posts metalli445's Truck Pics	Is excessive drive pressure the main reason for blown headgaskets? If this is the case and we started to buy external wastegate's would that totally eliminate the need for headstuds? What else besides excessive drive pressures cause head gasket failures? __________________ 2005 2500 QC, 4x4, Short Bed, SB 3600 DD, NV5600 6 Spd, 35/12.5/17, Amsoil 6080, straight pipe, boost fooler, Smarty TNT setting 5, Dipricol Pyro, Boost, & Fuel Press, Straight pipe, weatherguard truck box, silencer ring gone, HID's, Cobra 29 WX NW ST

11-04-2009, 08:57 PM	#52 (permalink)
Justin Price Diesel Freak Join Date: Mar 2008 Location: College Station, Tx Posts: 712 Thanks: 11 Thanked 23 Times in 21 Posts Justin Price's Truck Pics	heat causes gaskets to blow, boost causes it to blow drive pressure isn't the only thing it's one of the things. external gates would not keep gaskets from blowing __________________ 01 3500, 5 spd, edge juice w/attitude w/hot unlock, hx40/ht3b twins, bd intercooler boots, bd short shift kit, 250hp sticks, o-ringed head, pdi 3 piece manifold, 110 valve springs, billet push rods, arp studs, airdog 150. 517/979 on october 3rd 2009

11-04-2009, 09:35 PM	#53 (permalink)
Hayseed Cummins Nut Join Date: Apr 2006 Posts: 489 Thanks: 4 Thanked 7 Times in 7 Posts Hayseed's Truck Pics	My experience is on the 12v but here is what I have learned. Carefully check both the head and the block. Have the head magnafluxed for cracks. Then check it all again! Since you have the same place to look as last time I would pay particular to that area. I use the Cummins marine .020 over gasket and have had good luck running it at 45 psi boost with an HTT charger. Mine is torqued at 130 and it was checked after 500 miles of heat cycles. I asked my mechanic what blows the gaskets and was told that most times gaskets fail for two basic reasons (truck setup like mine that is), lots of fuel on a cold engine or lugging the engine adding lots of fuel. This causes extreme cylinder pressure. The latter is what got mine. It pulled good so I thought why downshift? Result = blown gasket and cracked head! I used the 97 to tow all the time so that is how it was setup. PS. your pyro has to be toast! No way your engine is less than 800* when you fuel it. __________________ 3rd Gen. 06 Quad cab 3500 4X4, manual, very "smart" 2nd Gen. 97 Ext. cab 3500 4X4, manual slightly modded 1st Gen. 93 W350 4X4, manual, my farm truck I'm seeing a pattern here :thumbsup