[Shotimes] 60,000 mile check -- tools and supplies

[Paul Nimz]

Bad cams?  Some have noticed the cams to be somewhat porous on the few that
have failed.

Paul Nimz
'97 TR
'93 EG mtx


----- Original Message ----- 
From: "Kirk Doucette" <Kirk.doucette@verizon.net>
To: "Mark Nunnally" <manunnal@netheaven.com>; <shotimes@autox.team.net>
Sent: Wednesday, December 03, 2003 8:32 AM
Subject: RE: [Shotimes] 60,000 mile check -- tools and supplies


> Its from using synthetic motor oil :) LOL
>
> Kirk J Doucette
> NESHOC President
> Stormtrooper-97 White
>
> -----Original Message-----
> From: shotimes-admin@autox.team.net
[mailto:shotimes-admin@autox.team.net]On
> Behalf Of Mark Nunnally
> Sent: Wednesday, December 03, 2003 9:17 AM
> To: shotimes@autox.team.net
> Subject: Re: [Shotimes] 60,000 mile check -- tools and supplies
>
> I see the valve shim check as more of a surface check, than a clearance
> check.  It's true hardly any will be out of spec, but it's more than just
> checking the clearance.  Inspecting the surface of the shim will sometimes
> be useful, as even well cared for cars can have a couple of shims start to
> come apart.  In all the 60k's I've done, I'd say 80% of the shims I've
> changed were due to them falling apart, and probably 95% of them were
still
> in "spec".
>
> It's my theory the rear head gets really beat up thermally, it's not
vented
> as well as the rear.  Typically you find more shims/cams falling apart in
> the rear, as well as leaking valve covers and plug well seals as you do
the
> front.  So especially if you live in a warm climate, it's not a bad idea
to
> see what's going on.  I did a 60k on a guy's 93 that had 3k oil changes,
but
> no service of any type till 92,000 miles.  Motor was as clean as anything
> you'll find, but the rear head had both cams falling apart, and a couple
of
> shims that fell apart.  Who knows when it happened, but it's possible if
it
> was caught 30k sooner he wouldn't have had to pay several hundred bucks
more
> to have the cams replaced.
>
> Also at last check, my 89 turned up a handful of shims on the rear head
that
> were falling apart, and this was before 60,000 miles when I installed the
> 3.0L cams in that motor (rear head).  Granted the car is raced a lot, but
I
> typically change oil before 2500 miles in that car.  You never know...
>
> mark
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