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post #1 of 11 (permalink) Old 07-03-2013, 03:06 PM Thread Starter
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head gasket repair tips.

like I said in the past that i've only really worked on 4 bangers until now. When I read the chilton it says to remove the oil pan but doesn't mention lifting the engine out of the chassis to remove it. do I really need to do this to get the timing chain off or is there a better way that I don't know yet. any thoughts would be greatly appreciated.
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post #2 of 11 (permalink) Old 07-03-2013, 03:50 PM
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you do not have to mess with the oil pan from the engine in any way shape or form to remove the timing chains. What you do have to remove completely is the timing chain cover, which shares some lower bolts with the timing chain. Jack your car up and take a good look under there.
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post #3 of 11 (permalink) Old 07-03-2013, 04:04 PM
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Have fun getting the dipstick tube out. And be careful removing/reinstalling the heads. Last thing you need is to scratch or dent the deck surface on the alignment dowels.

No need to remove the oil pan. I'd suggest tackling motor mounts, the oil filter adapter gasket, lower radiator hose and heater core hoses while the heads are off though.

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post #4 of 11 (permalink) Old 07-03-2013, 04:57 PM
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Quote:
Originally Posted by guitar maestro View Post
you do not have to mess with the oil pan from the engine in any way shape or form to remove the timing chains. What you do have to remove completely is the timing chain cover, which shares some lower bolts with the front of the oil pan. Jack your car up and take a good look under there.
Fixed that for you.

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post #5 of 11 (permalink) Old 07-03-2013, 05:06 PM
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And make sure you don't mix up those four pan bolts with the longer timing cover bolts. They're only slightly different in length and will crack through the timing cover with no effort.

-Matt
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post #6 of 11 (permalink) Old 07-03-2013, 06:06 PM
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Why are you doing head gaskets? Were they really blown?

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post #7 of 11 (permalink) Old 07-03-2013, 07:47 PM Thread Starter
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yeah they were really blown but when I get them off I'll have them ported. at the moment I have everything off but the timing chains and the hg's themselves.
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post #8 of 11 (permalink) Old 07-03-2013, 07:56 PM
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That's the first stock 4.6 with a blown head gasket that I've ever heard of. What makes you sure it's blown? You could be doing all this work for nothing when it could be the oil filter adapter gasket.

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post #9 of 11 (permalink) Old 07-03-2013, 08:24 PM
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Tip, rubber bands. When you remove the headbolts not all of them will be able to be removed completely so raise them up and rubber band them to each other over the cam caps.

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post #10 of 11 (permalink) Old 07-03-2013, 09:17 PM
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If you get the head changing kit it'll come with split tubes to hold the bolts. The kit is cheaper than gaskets and bolts separately.

-Matt
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post #11 of 11 (permalink) Old 07-03-2013, 09:19 PM
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Quote:
Originally Posted by Mgino96tbird46 View Post
That's the first stock 4.6 with a blown head gasket that I've ever heard of. What makes you sure it's blown? You could be doing all this work for nothing when it could be the oil filter adapter gasket.
Ive seen a few stock 4.6 engines with blown HG's, SOHC and DOHC. Its not unheard of .. not always necessarily a "blown" gasket either, an overheated engine can warp aluminum heads fairly easily. Either way I would still diagnose it with a compression / leakdown test or a HC sniffer in the coolant.
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