head gaskets

[Programmer]

Depends on the boat <BG>. I've never run into
anyone who does that up here...sounds like it'd work.
Lyndon.
-----Original Message-----
From: Len Sabatine <sabatine at epix.net>
To: gmecm at diy-efi.org <gmecm at diy-efi.org>
Date: November 14, 2000 7:19 PM
Subject: Re: head gaskets


>    Many "Bent " OHC head castings are successfully repaired by shimming @
>    high spot on a torque plate , torque them to spec , then relaxing them
>in an
>    oven. OHC castings must be straightened in this manner prior to
resurfacing
>    or for sure , the cam won't turn. These heads don't  make good boat
>anchors.
>    Len
>
>>It's a bigger problem with the OHC heads...cam bore distortion gets
>>pretty bad with a re-torque after machining beyond the spec. We
>>just chuck 'em...it's not worth a comeback.
>>Lyndon.
>>-----Original Message-----
>>From: Bruce Plecan <nacelp at bright.net>
>>To: gmecm at diy-efi.org <gmecm at diy-efi.org>
>>Date: November 13, 2000 9:57 PM
>>Subject: Re: head gaskets
>>
>> >This sound primitive.
>> >I have a 2" wide 24" long file.
>> >If a head fails the flatness with a straight edge I use the file.
>> >Sometimes is just almost accidential they fail the straight edge test.
>> >Other then the OHC stuff I've fudged things without dire results, on my
own
>> >stuff.
>> >bruce
>> >
>> >
>> >
>> >----- Original Message -----
>> >From: "Programmer" <nwester at eidnet.org>
>> >To: <gmecm at diy-efi.org>
>> >Sent: Sunday, November 12, 2000 5:44 PM
>> >Subject: Re: head gaskets
>> >
>> >> .005" ?? I'd only settle for .000"
>> >>  Nowdays, .006 can be the
>> >> warp discard of the head...
>> >>
>> >> Lyndon.
>> >> -----Original Message-----
>> >> From: John_Calabrese at ENGELHARD.COM <John_Calabrese at ENGELHARD.COM>
>> >> To: gmecm at diy-efi.org <gmecm at diy-efi.org>
>> >> Date: November 10, 2000 7:47 AM
>> >> Subject: Re: head gaskets
>> >>
>> >>
>> >> >I would have the surfaces not only checked for straightness, but
>> >> >refinished, maybe even the block as well,  The surface should have a
max
>> >> >.005" distortion to it, and a proper finish (120 rms?)  for good head
>> >> >gasket sealing.  Putting it back together and just cleaning surfaces
>> >really
>> >> >isn't that god of an idea
>> >> >
>> >> >Just my.02
>> >> >
>> >> >
>> >> >
>> >> >John L. Calabrese
>> >> >Research Engineer
>> >> >Environmental Technologies Group
>> >> >Engelhard Corporation
>> >> >
>> >>
>>
>>--------------------------------------------------------------------------
>>-
>> >> -
>> >> >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the
quotes)
>> >> >in the body of a message (not the subject) to
>>majordomo at lists.diy-efi.org
>> >> >
>> >>
>>
>> -------------------------------------------------------------------------
>>-
>> >--
>> >> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the
quotes)
>> >> in the body of a message (not the subject) to
majordomo at lists.diy-efi.org
>> >>
>> >>
>> >
>>
>---------------------------------------------------------------------------
>>-
>> >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>> >in the body of a message (not the subject) to
majordomo at lists.diy-efi.org
>> >
>> >
>>
>>--------------------------------------------------------------------------
--
>>To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>>in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>---------------------------------------------------------------------------
-
>To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org