John,
The studs in the block that come up through the head can become "frozen" to
the head as the gap between the stud and the head fills up with various
things, mostly rust. It is particularly true that the studs that are not
under the valve cover will suffer this fate.
This is what I've just done on my car to get the head off:
Spend some time getting a good penetrating oil to flow down the stud, even
using a hammer to tap a nut that is threaded onto it to help break this
crud up. This took a day or two to actually penetrate.
Then use the "rope trick" to get the head to begin to lift up. Put 1/4"
rope into #1 and #6 and turned the engine. I used the starter but you can
use the crank bolt as well.
I then used wooden wedges between the head and the block to raise the head
the rest of the way.
On another engine long ago I had to take a number of the studs out to get
the head off but I didn't know about using the rope at that time
Good luck!
Rob
74 TR6 still waiting to be re-capitated
At 09:07 PM 5/4/2002, John wrote:
>Thanks to everyone for your responses regarding my broken valve problem.
>
>My mechanic says he'd be willing to help me out if I get in over my head so
>I decided to "wade in" and see what happens. I figured I'd take a look and
>see what condition the head, valves, and pistons are in before deciding how
>far to go with a rebuild - and who should do it. (I only paid $3K for this
>car so dropping in a new engine is out of the question). I also want to see
>if there is an obvious reason why the valve/spring/rocker broke. (The car
>wasn't driven for two years before I bought it - think that might have
>something to do with it?)
>
>So anyway, here's where I am: I used the instructions in a shop manual to
>remove the head cover, water pump, manifolds, rocker assembly, etc. but I
>need advice on pulling off the head. I've removed all the bolts (in the
>proper order) and disconnected the manifolds etc but the head won't budge.
>I've tried hitting it with a rubber mallet, rocking it, and even turned the
>engine by hand to no avail - the thing won't budge! Does anybody have any
>tricks for getting off a stuck head?
>
>John
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