Blown head gaskets even after studs and OEM gaskets - Page 3 - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #21 of 56 Old 05-04-2016, 10:09 PM Thread Starter
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Quote:
Originally Posted by smokersteve View Post
If ARP's are aplying the correct pressure on to the gasket.
Then why do we have gasket failures?

So we look at Machining the heads.

Now with machine heads, and properly tighten ARP'S... and still have gasket failures?


---Can we have people who machine heads with a proper head gasket job chime in---


If we have to machine the heads AND BLOCK with ARPs just to get a reliable engine. Then every single job that doesn't have a machining work done is guaranteed to fail.

Is this what we are saying????

No that is not what we are saying. NOTHING is "guaranteed" to fail. We can only tell you what seems to work better. You seem to be making some MAJOR ABSOLUTES when typing.

Do you HAVE to machine the head AND block... NO. But if your heads are flat and your block is warped then you WILL have issues.

If you machine the heads, and the block is flat, but don't prep them right then you WILL have issues.

If you Machine just the head, and your block is flat, and you do all the prep work right... then you should have no issues.


Also... I know guys who have 200,000 miles on ORIGINAL gaskets with NO STUDS pushing around 550hp with ZERO ISSUES. I would guess he got lucky and his heads/block were dead flat from the factory and got a good running truck. He also monitors everything and never lets it get too hot.



I hope that helps.

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post #22 of 56 Old 05-06-2016, 06:07 AM
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OK, thanks for the info. To show my ignorance, what is the problem with 3 nipples...

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post #23 of 56 Old 05-08-2016, 10:20 AM
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Originally Posted by skuzzitude View Post
Bump. I am curious about this. Getting freaked out if people are blowing ARP studs on OEM gaskets.
I will go out on a limb and speculate, although Charlie covered most of it....

most failures with ARP and OEM gaskets can be attributed to poor prep work, poor machining (or lack thereof) and frankly, improper fastener torque.

With that, there are too many variables to pin point exactly why these failures occur and it's likely most people wouldn't be honest and say they did a poor job or prepping or installing.

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post #24 of 56 Old 05-10-2016, 10:14 AM
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I'll add my info just for fun .

Bought truck with leaking gaskets at 220,000km. Promptly blew completely with our first tow at 221,000km. Replaced with OEM gaskets, ARP studs, machined heads AND block. Has been running perfect (knock on wood) since then with the majority of it's duty as a trailer hauler (10k+) through the Rocky Mountains (Alberta to BC and back)...so definitely not easy driving.

I too agree that prep work (and machining) is key. I had a reputable shop do mine and they warranty their work for 2 years or 50,000km's. The truck now has 250,000km's and it has been almost exactly 2 years, so if something is going to happen I expect it to be now lol.

Do we have any CONFIRMED failures after the proper work was done (ARP's/machining)?

Just my $0.02...

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post #25 of 56 Old 05-10-2016, 01:57 PM
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Quote:
Originally Posted by smarty39 View Post

Do we have any CONFIRMED failures after the proper work was done (ARP's/machining)?

Just my $0.02...
Depends on whose idea of "proper work" you're looking for.
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post #26 of 56 Old 05-10-2016, 02:08 PM
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I can confirm head gasket failure after OEM heads were machined, block was checked and prepped, OEM gaskets were installed with A1 technology H11 head studs. It happens. I have UCF heads and ARP 2000s and I pray a lot more before I turn the key haha.

Mind you, I don't think this happens to the people who "do the right work" and leave the truck stock (or add mild upgrades like exhaust). But hot tunes, big turbos, and big injectors are capable of overcoming a "proper" head gasket job in my opinion.

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post #27 of 56 Old 06-13-2016, 03:36 PM
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It does happen

Factory failed at 103,000 went ARP with a reputable diesel mechanic and had one of the most reputable machine shops in the area magnaflux, vacuum check and mill and surface the heads, only one was warped but they took .003 off of both. Full flush restore, restore +, new oil cooler, dummy pipes, blue spring, egr delete, etc, Mahle Black Diamond gaskets and only ever ran the +50hp tow safe from SCT tuner and am now sitting with early stage gasket failure at 146,000 miles so yes it does apparently happen even when everything is done right.

Edit this truck is a 2006, the HG's were done about 2 yrs and 43,000 miles ago, gaskets were not stock but are supposed to be stock equivalent by the same manufacturer.

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post #28 of 56 Old 06-13-2016, 03:39 PM
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at that point I wonder if your block is not true across the deck
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post #29 of 56 Old 06-13-2016, 04:14 PM Thread Starter
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Quote:
Originally Posted by junior125 View Post
at that point I wonder if your block is not true across the deck
^^^ I am starting to think this is being overlooked.


If I ever pull the heads... I now deck the block just in case. This has really helped, not sure if it is because the block was not flat, or maybe just getting the perfect surface prep done solved the issue.
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Last edited by peixinho; 07-05-2016 at 06:45 PM.
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post #30 of 56 Old 06-13-2016, 04:46 PM
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Quote:
Originally Posted by peixinho View Post
^^^ I am starting to think this is being overlooked.


If I ever pull the heads on a stock block... I now deck the block just in case. This has really helped, not sur if it is because the block was not flat, or maybe just getting the perfect surface prep done solved the issue.
I think you may be on to something as that was the only thing that wasn't deliberately checked and verified.
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