I don't know, but I have about 150 shop manuals from my many years as a fully
licensed mechanic, and the engineers that designed the engines and wrote those
manuals seem to mention with some regularity to loosen them as I suggest, in
sequence.
But who am I to say. I guess opinions are better than my years of training,
schooling, licensing and working as a mechanic?
All those years I've been doing it wrong!
I'll not bother to share my wasted years of knowledge again. I'm sure others
know better. Happy fixing. Good Luck.
But then again I only scored 89% on the Government exam for my license.
Oh yeah, step 13 might be of some interest
http://www.autozone.com/az/cds/en_us/0900823d/80/17/a5/ea/0900823d8017a5ea/re
pairInfoPages.htm
BMW's too?
http://www.autozone.com/az/cds/en_us/0900823d/80/21/05/13/0900823d80210513/re
pairInfoPages.htm
Bob (never warped a head, never blew an engine I built, including engines I
did in the Phone Company Fleet) Winslade
1966-1600 Missy
1967-1600 Bender
----- Original Message -----
From: Keith0alan@aol.com
To: aultgc@att.net ; daveandlindab@comcast.net ; bubwin@mts.net ;
datsun-roadsters@autox.team.net
Sent: Saturday, March 08, 2008 11:12 PM
Subject: Re: [Roadsters] Cylinder head
In a message dated 3/8/2008 6:32:56 PM Pacific Standard Time, aultgc@att.net
writes:
I'm sure there are people out there smarter than me, but my opinion is as
follows:
It makes no difference how one loosens the head bolts. I am sure that
many
heads have proven to be warped after the heads bolts are loosened, and the
head is removed. But, I believe the condition is the result of stresses
induced in the head by improper cooling or other factors, and that it
makes
no differences how the "tension" is released. When the head and block are
cool, there is no force I am aware of which could result in warpage,
unless
the head is already under differential stress "contained" by the clamping
force of the head bolts.
Gary Ault
It might not make any difference but it can't hurt either.
keith
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