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<DIV>Did you have the head / valve job done and did your shop talk you into
bronze valve guides? For some reason in our TR4 heads bronze guides have been
problematic and result in valves sticking open. Compression check is in order
but do it when the engine is good and hot.</DIV>
<DIV>JVV</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=ahwahneetr@gmail.com>Geo
Hahn</A> </DIV>
<DIV><B>Sent:</B> Saturday, November 04, 2017 2:11 PM</DIV>
<DIV><B>To:</B> <A title=john-marie@sbcglobal.net>John Deluca</A> </DIV>
<DIV><B>Cc:</B> <A title=triumphs@autox.team.net>Triumphs</A> </DIV>
<DIV><B>Subject:</B> Re: [TR] TR4A plug check</DIV></DIV></DIV>
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<DIV>John -</DIV>
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<DIV>I'm no expert but I think you're looking for something unique to each
cylinder - I would start with a compression check and then look at valve
clearances.</DIV>
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<DIV>Probably best to clean the plugs and do a 'plug cut' or at least drive hard
with minimal idling to get a fair comparison.</DIV>
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<DIV>Geo</DIV></DIV>
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<DIV class=gmail_quote>On Fri, Nov 3, 2017 at 8:15 PM, John Deluca <SPAN
dir=ltr><<A target=_blank>john-marie@sbcglobal.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">List,<BR>Have
1500 miles on rebuilt engine and Stromberg carbs. Was running
good. Recently seemed to have lost a little power. Pulled the
plugs. Looking for some clue as to the reason for what l found... #1
plug was black and slightly wet. #2 looked like the mixture was
good. #3 was black but dry. #4 looked a little lean. Last
pulled the plugs at about 1000 miles. They looked normal. Of
course, I'm trying to figure out why plugs on the same carb are so
different. Did not get them mixed up. Appreciate any
ideas.<BR>John DeLuca<BR><BR>Sent from my iPad<BR><BR><BR>
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