Re: [DML] Exhaust manifolds removal?

["Mike Aninger" <mike@xxxx>]

Though not a D. owner yet, spending 6 1/2 years in the Army has given me
experience in this area. Don't flip out just yet as you haven't even begun
trying to repair. Penetrating oil of some kind is the best place to start.
WD40 has a tendency to evaporate, so stay on the lookout for other heavy
duty brands. Give the oil a chance to do its thing. Spray or squirt
several times a day and let it sit overnight. Start with the least damaged
bolt. (This is where my lack of a D. gets in the way). Have both metric
and standard wrenches and sockets ready (Allen Keys if that's what's there).
Flake off any rust on the bolt if there is any and check the fitting of the
proper size first. If it seems a little loose, use the next smallest wrench
WEATHER STANDARD OR METRIC. ON a relating note, if I had a seized 3/4 bolt,
a 19mm will actually fit much more snuggly. ALWAYS USE THE BOXED IN SIDE
FIRST (not the open end)! Apply pressure...SLOWLY. Do Not Jerk A Wrench On
A Seized Bolt! You might break off the head on a rusted bolt. The energy
transfer has to be slow and steady. You can use a cheater wrench by taking
a wrench of similar or larger size and looping the hole of the extra wrench
over the prong of the worker wrench, giving you better leverage. Again, not
owning a D., I don't even know if this is even feasible for what you are
currently working on. This is great information though for rusted out
bolts. It can be used anywhere.

-Mike

----- Original Message -----
From: "Stian Birkeland" <delorean@xxxx>
To: <dmcnews@xxxxxxxxxxxxxxx>; "DOC UK" <doc-uk@xxxxxxxxxxxxxxx>;
<delorean-nl@xxxxxxxxxxxxxxx>
Sent: Saturday, May 11, 2002 4:34 AM
Subject: [DML] Exhaust manifolds removal?


> I have discovered that the exhaust manifolds, LH and RH side, are very
> rusty. Now, that happens to every automobile that I know of.
>
> But - what worries me is when the time comes and I have to change the
> gaskets. It looks like the original fasteners of the manifolds (studs?) have
> rusted to an extent that they will be impossible to remove without screwing
> up the aluminum block!
>
> So, what is the fix for this?
>
> How do you get out the rusted studs/bolts. I can already see that this is
> going to be a problem, so a fix would be very much appreciated. Then I'll do
> it right away before it gets any worse! If I have to drill out the old
> bolts/studs, then that will certainly ruin the threads in the aluminum
> block, making it impossible to fasten anything...or?
>
> Many thanks,
> Stian Birkeland
> Norway
>
> VIN # 06759