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Old 01-23-2020, 05:16 AM   #1 (permalink)
thetundrawolf
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Cylinder head gasket change procedure?

Hi,


I am new to the disposable head bolt game, and I see conflicting information on head torque?

One thing I read was to torque the heads sequentially starting with a low torque and ending at 150 ft lbs, then turning each bolt 90 degrees after that?

I also bought 5 of the small "high temp thread sealer" tubes from permatex because I read I will need that, will that be enough for both heads?

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Old 01-23-2020, 05:32 AM   #2 (permalink)
thetundrawolf
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Also, should I put some kind of lubricant under the head bolt flanges? The last guy used rtv as a sealer I think? Head and threads if he used anything at all :\

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Old 01-23-2020, 01:18 PM   #3 (permalink)
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You need to use new head bolts and install dry and clean. If you go the arp studs they are different.
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Old 01-23-2020, 09:52 PM   #4 (permalink)
Maht_g
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I have to do mine too, and had a thought... how often do these stretchy bolts break trying to remove them? More likely to break removing by breaker bar or by impact gun?
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Old 01-24-2020, 07:41 AM   #5 (permalink)
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Removing with a impact will be fine....
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Old 01-24-2020, 11:11 AM   #6 (permalink)
thetundrawolf
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Quote:
Originally Posted by sctrailrider View Post
You need to use new head bolts and install dry and clean. If you go the arp studs they are different.
I heard you need to use thread sealer to seal against coolant loss... And oops I meant 110 ft lbs not 150. I have new bolts. What's wrong with getting 32 grade 8 bolts of the size needed? IDK why the arp set is so expensive.
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Old 01-24-2020, 01:54 PM   #7 (permalink)
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The fel pro and victor renz bolts have the sealant on them already. $42 for enough to do both heads on eBay
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Old 01-24-2020, 01:56 PM   #8 (permalink)
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The torque to yield thing just baffles me, why in the hell would you tighten a bolt til it stretches?! Get a bolt that is tough enough to handle the torque lol. I think I’m going to do arp studs, 165 on eBay or from summit
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Old 01-24-2020, 06:20 PM   #9 (permalink)
sctrailrider
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The TTY bolts have sealant on the threads and the flat part of the bolt head, they seal completely..


The studs are a hard one to seal out the water, if done wrong you will have water in the oil and not know it till it's too late most of the time..



And the studs stretch as well as the stock ones, that is how you get clamping force, every bolt will stretch, controlling the stretch is the key...
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Old 01-24-2020, 08:32 PM   #10 (permalink)
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Quote:
Originally Posted by sctrailrider View Post
The TTY bolts have sealant on the threads and the flat part of the bolt head, they seal completely..


The studs are a hard one to seal out the water, if done wrong you will have water in the oil and not know it till it's too late most of the time..



And the studs stretch as well as the stock ones, that is how you get clamping force, every bolt will stretch, controlling the stretch is the key...

I got the right hand head on and torqued. I don't have felt pro or whoever made these bolts but they didn't have sealant on them, so I had to put permatex thread sealer on the threads. I didn't do the bolt heads so that is a problem. I will have to run radiator sealant in the coolant I guess, bummer. I'll put it in the underside of the bolt heads on the other side

I also crushed the cylinder sealing area on the driver's side accidentally with the head, so that's a bummer too.

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