----- Original Message -----
From: "Tim Murphy" <timmurph@fastbytes.com>
To: <rikrock@aol.com>
Sent: Tuesday, July 01, 2008 3:14 PM
Subject: Re: [Fot] Liner Protrusion?
> I'm just in the process of doing this myself on a TR4 motor. The
> protrusion that I have with the stock figure 8's is:
>
> #1 Manifold side 0.002 Camshaft side 0.005
> #2 Manifold side 0.002 Camshaft side 0.004
> #3 Manifold side 0.002 Camshaft side 0.004
> #4 Manifold side 0.004 Camshaft side 0.005
>
> I'm using the composite (Payen) head gasket. I'll use either Permatex
> Aircraft Form-a-Gasket or Permatex Indian Head Gasket Shellac, whichever
> feels and looks thinner at the time.
>
> Note that on the figure 8 gaskets I found a little burr on the edge from
> the dies when they are stamped out. I stoned the gaskets and this reduced
> the protrusion by about 0.002 inch. I made the measurements with the
> sleeve clamped in to the block on opposite sides with washers, spacers and
> the head nuts (had to use toe clamps from the milling machine to reach #2
> and #3). Prior to clamping and measuring I did "seat" the sleeves per
> Kas's book. I haven't measured the thickness of the figure 8's, just
> measured protrusion. Did mark all sleeves for bore hole and direction of
> insertion as well as marking figure 8's and position in block bores. Also
> cleaned the block "seat" by wire brushing, emery cloth and then cleaned
> with lacquer thinner.
>
> Tim
> 1961 TR4 #317
>
>
> ----- Original Message -----
> From: <rikrock@aol.com>
> To: <fot@autox.team.net>
> Sent: Tuesday, July 01, 2008 2:21 PM
> Subject: [Fot] Liner Protrusion?
>
>
>> Amici,
>>
>> I'm building a new TR4 motor.? Planning to use a steel shim headgasket.?
>> Along with the shaved head, compression ratio will be aprrox. 11:1.
>>
>> With the new 89mm liners clamped down lightly on top of dry figure 8
>> gaskets which measure .0145" thick, cylinders 1, 2, and 3
>> liner?protrusion measures between .003" and .004".? Cylinder #4
>> protrusion measures between .005" and .006".? My question is.... what are
>> the chances the steel shim headgasket? will seal properly with these
>> heights and variation?
>>
>> Further, what do you like to use for sealer on the (steel) figure 8's and
>> steel shim gaskets?
>>
>> Thanks!
>>
>> Rich Rock
>> _______________________________________________
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