[Fot] Liner Protrusion, TR-4

[davehogye]

Go long, Tony. 

I had .006-.007 on my motor. 

I did a measurement test without a head gasket in place and the head on. I checked with a feeler gauge between the head and block as I torqued it incrementally. 
It goes to zero pretty quick. I have notes on this, but they are not in front of me now. 
Something is squishing/moving and I'm not sure what, but so far so good with 7 race events and a bunch of street use on this... my first TR motor build. With, I think around 2,500 miles on it now. 
I "reused" copper figure 8 gaskets. 

Dave H. 



----- Original Message -----

From: "Tony Drews" <tony at tonydrews.com> 
To: fot at autox.team.net 
Sent: Tuesday, December 15, 2015 6:12:57 PM 
Subject: [Fot] Liner Protrusion, TR-4 

Quick question re: liner protrusion in a wet liner engine. My new 
liners dry fitted with "stock" figure 8 gaskets (0.020" thick) have 
0.010" protrusion. Too much, I know. So, I'm going to make my own 
fig 8 gaskets out of shim stock. I have my choice between 0.015" 
shim stock and 0.012" shim stock which would give either 0.005" or 
0.002" protrusion dry. Any thoughts on which way I should go? I'm 
assuming that when I put some goo on the fig 8 gaskets to ensure that 
they seal that I'll get another thou or two protrusion so would go 
with the 0.012" shim / 0.002" protrusion. 

I'll be running the Cometic gasket with the fire rings. 

TIA 

Cheers, Tony Drews 

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