Re: IML: IML Sunken valves

["Robin Giesbrecht" <robings@xxxxxxxxxxx>]

Yes I was surprised to. They are not just worn but pretty much not there 
anymore.

Robin Giesbrecht

> From: "Pete Engel" <peter.engel@xxxxxxxxxxx>
> Reply-To: mailing-list@xxxxxxxxxxxxxxxx
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Subject: Re: IML: IML Sunken valves
> Date: Sat, 02 Jul 2005 10:34:30 -0400
>
> Robin,
>
> Valve seats were induction hardened by 1971 so I'm surprised to hear that
> your car has worn seats.  The exhaust valves do wear faster, though.
>
> Can't help with the manifold question.  I was able to pull the heads off my
> 70 LeBaron some years ago without issue.  The back stud for the left 
> exhaust
> manifold was broken off flush with the head casting and impossible (for me)
> to remove.  I had the heads reconditioned at that time.
>
> As far as the engine stampings, the "H" indicates 1972 model year engine.
> The "1" and "24" indicate a January 24th, 1972 engine assembly date.
>
> Pete in PA
>
>
>
>
> From: "Robin Giesbrecht" <robings@xxxxxxxxxxx>
> Subject: IML: 440 sunken valves
> Date: Wed, 29 Jun 2005 23:18:07 -0700
> Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>
> Pulled the heads off of my 72 Imperial today. I have got several sunken
> exhaust valves which probably means the seats are gone. Could notice the
> different heights when the rocker arms were removed. Half the valve seals
> are useless.How do you get the drivers side exhaust manifold to clear the
> studs? Removing the engine mount bolts and jacking the engine makes things
> worse. Remove the engine mount and drop the engine? That is what I am
> thinking. Timing chain was trash but the nylon teeth were still on the
> sprocket at 105,000 miles. Very little carbon. This engine is stamped H 440
> with 1 and 24 under this. Any idea what this means besides the 440
> designation?
>
> Robin Giesbrecht
> 1972 Imperial
>
>
>
>
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