Even easier, so no hassle at all.
Curious, do they instruct you to torque the studs in, or just install them snug?
The reality of the Landcruiser Head Gasket Issue (1 Viewer)
- Thread starter The Raven
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Even easier, so no hassle at all.
Curious, do they instruct you to torque the studs in, or just install them snug?
This is a general subject that has arisen here on Mud in the past. I have never installed a stud any tighter than say 15-20 inch pounds and in some instances, finger tight or zero torque. Don’t quote me on this but I think that the reason some people order the Opel studs is because they are a bit longer and being able to bottom out a stud makes some feel more confident in the final assembly and I don’t think the 1fz studs actually bottom out. The general rule is thread engagement at least equal to the diameter of the stud. This is what I remember doing back in 2015.
So, school me here: Why would you need to remove the cams to retorque the studs?
I didn't vote because I swapped out my HG with a cometic HG for no reason..... I thought I had a motor issue and it ended up being the darn gear on the power steering pump making a terrible racket! When I took the motor apart and to the machine shop the guy asked me several times why I was rebuilding the motor because he could not see a thing wrong with it at 190,000 miles.
I'm thinking to change the HG at 170k...
Wait, what? The head bolts / studs are UNDER the cams? WTF? Well THAT just got complicated...
I've done 460s and a 426, never a DOHC. Sheesh.
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They are indeed hiding snugly underneath the camshafts. Camshaft removal is so easy; that is the way I changed shims.
As to the bolt vs stud discussion, since the bolts are TTY, they don't need re-torquing.
I think that "thinking" about swapping out the HG is silly talk unless you have a reason. Are you going to supercharge or turbo? Are you seeing bubbles in your coolant? Otherwise I would not mess with it. JMHO
Well, it's an engine I'm going to swap into the vehicle, 170k miles vs my 236k. If things look good inside, I'm going to do early PM while it's easy, and s/c when I can afford it. One of those PM items is the HG; given the cost, I'm still up in the air about that, but lean toward doing it (even at 170k).
if you have every intention of boosting, and/or you have the spare time and $ and want to do the preventative maintenance then go for it. It would be piece of mind down the road; I know I have felt that.
I just don't want people to think it's like the PHH where you get your hands on an 80 and you think you better do the HG before it goes..... tick, tick, tick boom
I just don't want people to think it's like the PHH where you get your hands on an 80 and you think you better do the HG before it goes..... tick, tick, tick boom
yeah you tell 'em
Yeah, could be more like ticktickticktick...[ten years pass]...ticktickticktick...
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I’m at 236k and luckily no issues so far on the original HG
A head gasket is not PM, it called reading to much MUD
Don't overheat it and it well be fine, making sure the cooling system is in perfect shape is PM
238k 1993 1FZFE
Let the rebuild commence
Let the rebuild commence
Dissent
Questioning my life choices...
I had mine replaced by the Dealer in Phoenix for about $1800. Now mine didn't actually fail in the traditional sense but I had a Blackstone Oil Analysis come back with extremely high Sodium and Potassium readings, which are indicative of coolant in the oil. I took it in, had the HG swapped and sure enough, it was starting to go on good old #6. I'm eternally thankful for that analysis reading as I had the opportunity to deal with a HG replacement on my terms and my schedule for once. I just chalked it up to the rest of the base-lining work expense-wise. I was going to supercharge when I bought it so this was always on my to-do list. I didn't because supercharging in Phoenix is just plain awful from those who've attempted it. Now that I'm in TN...a supercharger is back on the table...or a turbo...
Maybe start with an oil analysis and the EG test you mentioned. That will tell you what kind of shape you're really in.
Maybe start with an oil analysis and the EG test you mentioned. That will tell you what kind of shape you're really in.
If your talking about EngEngr in post #176 I would say skip the oil analysis, it's safe to say the HG went south !!I had mine replaced by the Dealer in Phoenix for about $1800. Now mine didn't actually fail in the traditional sense but I had a Blackstone Oil Analysis come back with extremely high Sodium and Potassium readings, which are indicative of coolant in the oil. I took it in, had the HG swapped and sure enough, it was starting to go on good old #6. I'm eternally thankful for that analysis reading as I had the opportunity to deal with a HG replacement on my terms and my schedule for once. I just chalked it up to the rest of the base-lining work expense-wise. I was going to supercharge when I bought it so this was always on my to-do list. I didn't because supercharging in Phoenix is just plain awful from those who've attempted it. Now that I'm in TN...a supercharger is back on the table...or a turbo...
Maybe start with an oil analysis and the EG test you mentioned. That will tell you what kind of shape you're really in.
Mine was never overheated and head gasket went at 316K.
Fortunately I was at home when it happened.
It's really a matter of how you use your Land Cruiser and how much inconvenience you are willing to accept when it happens.
Being 500 miles away from home on vacation will look a little different than having it happen a couple blocks away at the grocery store.
All that's is true !!
Yet you never did the head gasket tell it went.
The motor I'm talking about only has 170k on it. I still say run it !
Plus doing the HG is not a guarantee that it won't go bad at a later time, add to that it's a complicated job that you get to worry about if it was done correctly or not
It simply not the same as changing the plugs or doing a oil/ coolant change. Traditionally things like that are considered PM
IMHO the fact that yours was never overheated is a good indicator as to why it made it to 316k a lot for any motor by most standards.
Cheers
