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Old 03-27-2011, 02:23 PM #1
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head gaskets again!

I replaced headgaskets back in '06 at 100000 miles. Now my '94 4runner has 141000 miles. I noticed that temp gauge takes a while to show a reading. A week later radiator was half empty. I know that I have about 2-3 weeks to go before oil and coolant will start mixing again.
So this is a third time it blew up. Dealer fixed it once at 60k, I did it in '06 and now again. Something is telling me that even if I do fix it now I'll be doing again after 40-50k miles. Please tell me I'm wrong!
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Old 03-27-2011, 02:49 PM #2
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I sure hope you are wrong! I am just about finished with replacing my HG and it is not something I want to do again....EVER!!!!!
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Old 04-01-2012, 11:13 PM #3
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Update!
Found milkshake during last oil change. Pulled the heads and found HG blown again. Last set lasted 47k miles. I'm alomost done replacing them. Maybe, third time is a charm...
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Old 04-02-2012, 12:31 AM #4
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Did I have the heads checked to see if they are flat? Maybe the block is no good...what did u do the last time u did the heads? Rebuild?
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Old 04-02-2012, 02:29 AM #5
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Those are such a PITA. I would buy new heads, that's what I did in my 88 however I parted it out instead of fixing it.
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Old 04-02-2012, 05:34 AM #6
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Quote:
Originally Posted by 92-SR5 View Post
Those are such a PITA. I would buy new heads, that's what I did in my 88 however I parted it out instead of fixing it.
I beg your pardon, that doesn't make sense. Did you part it out after you bought the new heads?
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Old 04-02-2012, 09:16 AM #7
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Maybe you should invest in some headers this time around, 6cyliners. You'll pull the heat away from that back corner where the gasket usually fries, and you'll get a nice boost in power for the effort. That way you can consider the money spent as an investment, instead of merely an expensive repair.
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Old 04-02-2012, 09:48 AM #8
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I concur, headers are the way to go. That way you ditch the crossover pipe. Your heads will like the heat reduction that's for sure
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Old 04-02-2012, 11:39 AM #9
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right on

Quote:
Originally Posted by GonOvr View Post
I concur, headers are the way to go. That way you ditch the crossover pipe. Your heads will like the heat reduction that's for sure
I third that on headers it seems like most 3.0l head gaskets go out on driver side near cross over!!!!! I know thats where mine blew out as well. If you do redo the heads at least put a better heat shield around the cross over.
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Old 04-02-2012, 01:42 PM #10
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Quote:
Originally Posted by SwiftRunner View Post
I beg your pardon, that doesn't make sense. Did you part it out after you bought the new heads?
I didn't feel like doing the same thing over again. That was the problem I had with that engine. The HG will blow again eventually even if you do fix it right. It wasn't worth it to me on a POS 4runner, I'd rather fix one that was a nice vehicle to begin with. I made more money parting it out than I had into the whole vehicle anyways.
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Old 04-02-2012, 11:17 PM #11
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Last time I had the heads redone and check block with straight edge. Headgasket came from enginebuilder(sp?) Ted I believe. This time I was kinda pissed. So, I oredered a cheapest set from ebay with headbolts and slapped it back together. Hoping to get 2 more years out of it while looking for another core to rebuilt or ls 5.3 swap.
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Old 04-03-2012, 02:16 AM #12
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Did u use new headbolts the first time?
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Old 04-03-2012, 03:06 AM #13
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my 3.slo is at 318k and last time I had the HG replaced was more than 100k-150k miles ago... Check your block, the heads themselves, and if there's additional heat going to the HG's for possible leaks or anything of the sort.
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