Competition Head Gasket or O-ring in a Common Rail??

[Highfinance97]

A buddy of mine keeps popping his head gasket in his 06



ARP head studs and a OEM gasket



I've talked to a couple different people that have built and seen trucks that Are running 80+ PSI with just studs and a OEM gasket with no problems





What is everyone else doing for this????





Michael

 

[HoleshotHolset]

I have to ask: Has the head and block been checked to ensure they're both nice and flat? Cummins machines them to 'close enough' specifications - this obviously isn't good enough for those of us that have turned up the wick.



I've also been under the impression that the OEM MLS gasket in the ISBe's is good for ~80psi with studs.



Cheers,



Matt

 

[Highfinance97]

The head has been check by a machine shop and the block just by the humen eye





Michael

 

[lmills]

hey Mike, stock gasket here. Popped one at 40,000 miles, but it was from my own stupidity. This one that is on here now has taken quite a beating. LOL

 

[raychem]

You really can't check the block by eye. Get a true straight iron to run the lenght of the block and check using a feeler gauge. You should be less then . 003 deviation from front to back, . 002 side to side. The head, the book calls for . 012 maxumim deviation front to back, . 003 side to side, i like to see . 003 or less front to back. I had a similar problem once 2 HG in a week but it was the head that was . 010 distortion... within factory spec but not for the engine... . lol.



Richard

 

[Highfinance97]

hey Mike, stock gasket here. Popped one at 40,000 miles, but it was from my own stupidity. This one that is on here now has taken quite a beating. LOL

I dont think quite a beating the phrase LOL

So you not o-ringed???





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raychem

Thanks for the specs they will come in handy





Michael

 

[lmills]

I dont think quite a beating the phrase LOL

So you not o-ringed???





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raychem

Thanks for the specs they will come in handy





Michael

no, I have not oringed yet. And to be totally honest, now that I have seen the abuse this one has taken over the past 15 months and 40K miles, I may never go that route with a common rail.

 

[OT-OF-HERE!!]

Headgaskets & "O-ringing"

The Dr. P truck is NOT O-ringed or Fire ringed. Tell you something??

 

[GOT-Torque]

A buddy of mine keeps popping his head gasket in his 06

How are his drive pressures?



Does he let it warm up before he gets on it?



How does he torque the head down? studs?

 

[TCluff]

A buddy of mine keeps popping his head gasket in his 06



ARP head studs and a OEM gasket



I've talked to a couple different people that have built and seen trucks that Are running 80+ PSI with just studs and a OEM gasket with no problems





What is everyone else doing for this????





Michael

MY STOCK 03 HEAD USED TO LIFT AT 55-60 PSI OF BOOST AT CLOSE TO A ONE TO ONE DRIVE, I HAVE SINCE WENT TO A BRAND NEW 610 HEAD AND HAD THE BLOCK CHECKED BY A MACHINE SHOP, I RUN THE THICKER GASKET NOW BUT HAVE SEEN CLOSE TO 80 PSI ON THE THINNER ONE, AS SOON AS THE NEW ENGINE GETS BROKE IN, I WILL TURN THE BLOW OFFS UP TO AROUND 75-80, WHEN I RAN THE THINNER GASKET I TORQUED THE STUD NUTS TO 132 FTLBS, USING THE BOOK SEQUENCE THEY WERE ARP 12MM, THE TORQUE SEQUENCE IS DETRIMENTAL AS WELL AS THE TRUENESS OF THE HEAD AND BLOCK AS MENTIONED, ALSO DRIVE PRESSURE/BOOST RATIO HAS A ROLE IN HEADGASKET FAILURE AT LOWER BOOST LEVELS... HOPE THIS HELPS...

 

[WUnderwood]

I think a lot of reasons why people are popping head gaskets is because they have crazy drive pressures, not many check them. You dont have to make tons of boost to make power.

Also, make sure that the head and the block are flat and true, like the others said.

 

[HoleshotHolset]

Exactly.

9cm² turbine housing = drive pressure³! :-laf



Matt

 

[Highfinance97]

How does he torque the head down? studs?

Cummins specs 96-106-116-120 LBS





Michael

 

[angermanagement06]

I am the one with head gasket problem ,what is the diff. of a fire ring and a o- ring please tell. .

 

[Jetpilot]

O-rings are normally a . 041 or . 051 diameter SS wire that is installed in a groove that is cut into the block or head. The wires protrusion is normally . 010. This wire will smash directly on the OEM fire ring of the gasket.



Fire rings are larger rings of metal that actually fit in a cut groove in the block or head. These replace the OEM gasket fire ring (special gasket required). When torqued the fire ring itself fills the void of the groove and seals the head on.



Doug

 

[OT-OF-HERE!!]

Great advice!!

I think a lot of reasons why people are popping head gaskets is because they have crazy drive pressures, not many check them. You dont have to make tons of boost to make power.



Also, make sure that the head and the block are flat and true, like the others said.

The voice of reason!!!!!

 

[therabbittree]

I Heard a rumor about Shied having a new fire ring setup where the rings are just placed on the block . . no cutting a groove in the head or the block. . supposedly you just put the head on and clamp it down. . any one know more about this?

Thanks

deo

 

[Highfinance97]

I Heard a rumor about Shied having a new fire ring setup where the rings are just placed on the block . . no cutting a groove in the head or the block. . supposedly you just put the head on and clamp it down. . any one know more about this?

Thanks

deo

Thats kinda scary:-laf







Michael

 

[JacktheBear3]

I Heard a rumor about Shied having a new fire ring setup where the rings are just placed on the block . . no cutting a groove in the head or the block. . supposedly you just put the head on and clamp it down. . any one know more about this?

Thanks

deo

Was it the Phuzion Gasket?



Phuzion Gaskets



This gasket requires Flat Decked surfaces... . they do not make one just yet for the CR motors.



W

 

[Jetpilot]

I Heard a rumor about Shied having a new fire ring setup where the rings are just placed on the block . . no cutting a groove in the head or the block. . supposedly you just put the head on and clamp it down. . any one know more about this?

Yes they have this setup, it is actually their MLS gasket..... It is an alternative for guys who do not want to run o-rings or fire-rings. From what they told me it is a good setup for the 500 HP types. If you are really turning up the wick they recommend their fire-ring setup though.



Doug