Re: [AMC-list] lifters froze, any ideas?

[Joe Fulton <piper_pa20@xxxxxxxxxxx>]

AMC had to use hydraulic lifters on the aluminum motor because of the aluminum block.  It has a higher coefficient of expansion than the cast irom block and the last settings would change too much.

Joe Fulton

--- On Wed, 2/17/10, das24rules@xxxxxxxxx <das24rules@xxxxxxxxx> wrote:

> From: das24rules@xxxxxxxxx <das24rules@xxxxxxxxx>
> Subject: [AMC-list] lifters froze, any ideas?
> To: amc-list@xxxxxxxxxxxx
> Date: Wednesday, February 17, 2010, 10:27 PM
> so, i got my aluminum 196 taken
> almost all the way down tonight. FINALLY got
> the 2 froze pistons out. i dont think they are any good
> anymore. LOL. i got
> another set anyway. the lifters are froze. i got the cam to
> make about 1/2 a
> revolution, but i have a few froze lifters. i can slide the
> cam out a little,
> but lifters arent moved quite enough. any ideas? they are
> soaking in pb
> blaster overnight. i can not beleive how much lighter that
> block is than the
> cast iron. theres probably 100 lbs difference. that block
> only weighs about
> 50lbs max. are those lifters specific to that motor, or are
> they the same as
> the later 199/232? i hope same as later. what about cams.
> how different is
> the cast iron cam with solid lifters, than the hydraulics
> in the aluminum
> motor? i think the aluminum is hydraulic anyway. they look
> it. i did a quick
> hone job on the cylinders. they look GREAT. no pitting, or
> lip where the 2
> pistons were froze. the oil pump gear has a few teeth broke
> on it. would the
> drive gear on the cast iron probably be the same? if so, i
> will just swap the
> pump gears. that motor was NASTY. it got pressure washed
> inside and out. looks
> like aluminum again instead of a heap of oil/dirt. get this
> cam and lifters
> out so i can send it to the old school machine shop here.
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