<font color='black' size='2' face='Arial, Helvetica, sans-serif'><font size="2">Check the gasket thickness, it depends on what piston/wall clearance, rods, and RPM you use.<br>
You generally need around .030 piston/head with stock rods, so add that to your pop-up of .010 for minimum gasket thickness.<br>
If you run good rods you can run a little less before the pistons smack the head.<br>
It's perfect when there isn't any carbon build up on the piston tops under the squish area.<br>
When it's not right, it goes BRRRRRRRRRRRRR...<br>
HTH<br>
Glen<br>
<br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black"><blockquote style="border-left: 2px solid blue; padding-left: 3px;"> After all the machining to get the stick out<br>
right I now have the pistons sticking up about 0.010 above the tops of the<br>
liners. No problem with the composite Payen head gasket.<br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: timmmurphh--- via Fot <fot@autox.team.net><br>
To: fot <fot@autox.team.net><br>
Sent: Wed, Aug 16, 2017 5:48 pm<br>
Subject: [Fot] FW: Grattan VSCDA next weekend?<br>
<br>
<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:timmmurphh@gmail.com">timmmurphh@gmail.com</a> [<a href="mailto:timmmurphh@gmail.com?">mailto:timmmurphh@gmail.com</a>] <br>
Sent: Monday, August 14, 2017 12:20 PM<br>
To: 'Tony Drews' <<a href="mailto:tony@tonydrews.com">tony@tonydrews.com</a>><br>
Cc: <a href="mailto:ryan.murphy@fdlco.wi.gov">ryan.murphy@fdlco.wi.gov</a>; Steve Yott <<a href="mailto:tr4@wi.rr.com">tr4@wi.rr.com</a>><br>
Subject: RE: [Fot] Grattan VSCDA next weekend?<br>
<br>
Sadly, we won't be able to make it.<br>
<br>
I just got the block back from the machine shop last Tuesday. Not enough<br>
time to get everything together and in the car and ready to go by Thursday.<br>
The good news is the liner stick out is the 0.004 the machine shop said they<br>
machined the liner seats and deck to. It's still a bitch to measure, as the<br>
liners "wobble" on the seats and when you're looking for 0.004 it's a<br>
problem. I finally have a decent dial indicator gage setup to at least give<br>
repeatable readings. The figure 8's used was a set of copper ones I had<br>
that measured 0.016. The machining was done on a single setup on a Rottler<br>
floor type vertical 4-inch spindle milling/boring machine. These are<br>
special purpose machine tools built specifically to machine engine parts,<br>
such as blocks and heads. After all the machining to get the stick out<br>
right I now have the pistons sticking up about 0.010 above the tops of the<br>
liners. No problem with the composite Payen head gasket.<br>
<br>
Thanks for all the responses to the Figure 8 gasket question. I did<br>
eventually hear back from Moss UK. They said their steel fig. 8's are 0.016<br>
and their copper fig. 8's were 0.018. No explanation regarding the<br>
different thickness other that they have not had reported problems with the<br>
gaskets. I'm not sure where the 0.020 thick copper ones that I measured<br>
came from or for that matter, the 0.016 thick copper ones I'm using.<br>
<br>
Tim & Ryan Murphy<br>
1961 ('61, it is Comm. No. 511 and was built in 1961 per British Heritage)<br>
TR4 #317 BRG<br>
<br>
-----Original Message-----<br>
From: Fot [<a href="mailto:fot-bounces@autox.team.net?">mailto:fot-bounces@autox.team.net</a>] On Behalf Of Tony Drews via<br>
Fot<br>
Sent: Saturday, August 12, 2017 6:21 PM<br>
To: <a href="mailto:fot@autox.team.net">fot@autox.team.net</a><br>
Subject: [Fot] Grattan VSCDA next weekend?<br>
<br>
Anyone else going to Grattan next weekend?<br>
<br>
Vroom, vroom, Tony Drews<br>
<br>
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