<div dir="auto">Any chance the block is not flat?</div><div class="gmail_extra"><br><div class="gmail_quote">On Apr 2, 2017 7:55 PM, "Roger Elliott" <<a href="mailto:elliottr@rmi.net">elliottr@rmi.net</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi All,<br>
<br>
I have a 1980 Spitfire, the head has been rebuilt twice in the last 2,500 miles. (Shop claims something happened between first and second rebuild, so not their fault)<br>
<br>
Anyway, I have taken it for a few drives ~60 miles at a time and all seemed good, so we were going to take it on a bit longer drive.<br>
<br>
35 miles from home, the temp gauge is pegged, I put in lots of water - maybe not quite a half gallon. Started up to try to drive back home, there was lots of white smoke from the exhaust. I don't think it was smoking much if at all before it overheated as I was kind of keeping an eye on the car behind us and did not see smoke.<br>
<br>
I got 3 miles and decided to call a tow truck. It was low on water again - at least a quart in those 3 miles.<br>
<br>
I used a leak down tester - though didn't really do a real leak down test - to see if the cylinders were holding air. All seemed fine except 4 which was not holding air and I could hear the air coming through the radiator water was bubbling.<br>
<br>
So, I took the head off expecting the head gasket to be blown or something obvious with the head.<br>
<br>
Head gasket was fine. My checks of the head with feeler gauge and straight edge indicated it is flat. I don't see anything wrong with the head.<br>
<br>
Do I need to have it checked for cracks? Or what else could be wrong?<br>
<br>
Or could it be that the overheating loosened the head enough that water got past the gasket?<br>
<br>
Thanks,<br>
<br>
Roger Elliott<br>
<br>
<br>
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