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Re: [Fot] Race Engine Refreshing Frequency - compression results

To: Ken Knight <kknight@klaenv.com>, James Trudeau <jgtrudeau@comcast.net>
Subject: Re: [Fot] Race Engine Refreshing Frequency - compression results
From: Rick Parent via Fot <fot@autox.team.net>
Date: Sun, 29 Oct 2023 14:54:16 +0000 (UTC)
Cc: "fot@autox.team.net" <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <wsNsqXJEBtfO3wsNtqdx02.1698534386.7709cf9479127ad3b3deec264288eb98.MISSINGID@klaenv.com> <72FFC736-E78A-4AD9-B92C-E13546724A9B@comcast.net>
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The numbers are what one would expect doing a cold pressure test. If the en=
gine was hot when you did the test I would pull it.
Rick Parent
"Doing the right thing is always the right thing, regardless of consequence=
s"
=20

    On Sunday, October 29, 2023 at 07:37:22 AM MST, James Trudeau via Fot <=
fot@autox.team.net> wrote: =20
=20
 Thanks Ken and Tony,
Glad to hear the bottom end has more life. Will do a leak down test and be =
asking about Triumph top end rebuilders in New England.=C2=A0
Jim

Sent from my iPhone

On Oct 28, 2023, at 7:06 PM, Ken Knight <kknight@klaenv.com> wrote:



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If you can barrow a leak down tester that is still the best tool to assess =
engine health.=C2=A0 I also change oil filters after each race and cut it o=
pen to see what is trapped inside.=C2=A0 =C2=A0A well built TR race motor c=
an easily do double those hours on the bottom end.=C2=A0 In my opinion the =
key to long tern motor health, assuming a good build, is a high quality rac=
e oil.=C2=A0 My choice is Joe Gibbs Driven XP-3 10-30, I have bearings that=
 look almost new at 50 hrs. using this oil.=C2=A0 No such thing as =E2=80=
=9Ccheap=E2=80=9D racing oil.=C2=A0 =E2=80=9CNever be beaten by parts=E2=80=
=9D K. Kastner.

 =C2=A0

Ken

 =C2=A0

 =C2=A0

 =C2=A0

Sent from Mail for Windows

 =C2=A0

From: James Trudeau via Fot
Sent: Saturday, October 28, 2023 2:06 PM
To: fot@autox.team.net
Subject: [Fot] Race Engine Refreshing Frequency - compression results

 =C2=A0

I finished a 9 weekend race/school/track day season that started in April a=
nd finished at Thompson in October with no obvious performance problems. To=
tal of 38 engine hours including warmup, grid, race, cool down.=C2=A0

 =C2=A0

Did a dry compression test today:
  =20
   - 210
   - 225
   - 195
   - 200

 =C2=A0

I get some oil blow by at the valve cover cap and maybe some drips from low=
er end seals (not sure if oil starts at valve cover).=C2=A0

 =C2=A0

I=E2=80=99m sure I=E2=80=99ll hear a suggestion to do a leak down test and =
/ or wet compression.=C2=A0

 =C2=A0

Oil filter forensics?

 =C2=A0

In the absence of obvious issues, how much of a tear down is warranted?=C2=
=A0

 =C2=A0

Jim

Sent from my iPhone

 =C2=A0

_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
tt.net


 =20
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<html><head></head><body><div class=3D"ydpfc6f8010yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div><div dir=3D"ltr" data-setdir=3D"false">The numbers are what one wou=
ld expect doing a cold pressure test. If the engine was hot when you did th=
e test I would pull it.</div><div><br></div><div class=3D"ydpfc6f8010signat=
ure"><div style=3D"font-family:Helvetica, Arial, sans-serif;font-size:16px;=
"><div dir=3D"ltr">Rick Parent</div><div dir=3D"ltr"><br></div><div dir=3D"=
ltr">"<i>Doing the right thing is always the right thing, regardless of con=
sequences</i>"</div><div dir=3D"ltr"><br></div></div></div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"yahoo_quoted_9403074530" class=3D"yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Sunday, October 29, 2023 at 07:37:22 AM MST, James T=
rudeau via Fot &lt;fot@autox.team.net&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"yiv5651185782"><div>Thanks Ken and Tony,<di=
v><br></div><div>Glad to hear the bottom end has more life. Will do a leak =
down test and be asking about Triumph top end rebuilders in New England.&nb=
sp;</div><div><br></div><div>Jim<br><br><div dir=3D"ltr">Sent from my iPhon=
e</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Oct 28, 2023, at 7=
:06 PM, Ken Knight &lt;kknight@klaenv.com&gt; wrote:<br><br></blockquote></=
div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<style>#yiv56511857=
82 filtered {}
#yiv5651185782 filtered {}
#yiv5651185782 p.yiv5651185782MsoNormal, #yiv5651185782 li.yiv5651185782Mso=
Normal, #yiv5651185782 div.yiv5651185782MsoNormal {margin:0in;font-size:11p=
t;font-family:Calibri, sans-serif;}
#yiv5651185782 a:link, #yiv5651185782 span.yiv5651185782MsoHyperlink {color=
:blue;text-decoration:underline;}
#yiv5651185782 p.yiv5651185782li1, #yiv5651185782 li.yiv5651185782li1, #yiv=
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:11pt;font-family:Calibri, sans-serif;}
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#yiv5651185782 ol {margin-bottom:0in;}
#yiv5651185782 ul {margin-bottom:0in;}</style><div class=3D"yiv5651185782Wo=
rdSection1"><p class=3D"yiv5651185782MsoNormal">If you can barrow a leak do=
wn tester that is still the best tool to assess engine health.&nbsp; I also=
 change oil filters after each race and cut it open to see what is trapped =
inside.&nbsp; &nbsp;A well built TR race motor can easily do double those h=
ours on the bottom end.&nbsp; In my opinion the key to long tern motor heal=
th, assuming a good build, is a high quality race oil.&nbsp; My choice is J=
oe Gibbs Driven XP-3 10-30, I have bearings that look almost new at 50 hrs.=
 using this oil.&nbsp; No such thing as =E2=80=9Ccheap=E2=80=9D racing oil.=
&nbsp; =E2=80=9CNever be beaten by parts=E2=80=9D K. Kastner.</p><p class=
=3D"yiv5651185782MsoNormal"> &nbsp;</p><p class=3D"yiv5651185782MsoNormal">=
Ken</p><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p><p class=3D"yiv565118=
5782MsoNormal"> &nbsp;</p><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p><p=
 class=3D"yiv5651185782MsoNormal">Sent from <a rel=3D"nofollow noopener nor=
eferrer" target=3D"_blank" href=3D"https://go.microsoft.com/fwlink/?LinkId=
=3D550986">Mail</a> for Windows</p><p class=3D"yiv5651185782MsoNormal"> &nb=
sp;</p><div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0=
pt 0in 0in 0in;"><p style=3D"border:none;padding:0in;" class=3D"yiv56511857=
82MsoNormal"><b>From: </b><a rel=3D"nofollow noopener noreferrer" ymailto=
=3D"mailto:fot@autox.team.net"; target=3D"_blank" href=3D"mailto:fot@autox.t=
eam.net">James Trudeau via Fot</a><br><b>Sent: </b>Saturday, October 28, 20=
23 2:06 PM<br><b>To: </b><a rel=3D"nofollow noopener noreferrer" ymailto=3D=
"mailto:fot@autox.team.net"; target=3D"_blank" href=3D"mailto:fot@autox.team=
.net">fot@autox.team.net</a><br><b>Subject: </b>[Fot] Race Engine Refreshin=
g Frequency - compression results</p></div><p class=3D"yiv5651185782MsoNorm=
al"> &nbsp;</p><p class=3D"yiv5651185782MsoNormal">I finished a 9 weekend r=
ace/school/track day season that started in April and finished at Thompson =
in October with no obvious performance problems. Total of 38 engine hours i=
ncluding warmup, grid, race, cool down.&nbsp;</p><div><p class=3D"yiv565118=
5782MsoNormal"> &nbsp;</p></div><div><p class=3D"yiv5651185782MsoNormal">Di=
d a dry compression test today:</p></div><div><ol style=3D"margin-top:0in;"=
 start=3D"1" type=3D"1"><li style=3D"margin-top:0in;margin-bottom:0in;font-=
stretch:normal;" class=3D"yiv5651185782li1"><span class=3D"yiv5651185782s1"=
>210</span></li><li style=3D"margin-top:0in;margin-bottom:0in;font-stretch:=
normal;" class=3D"yiv5651185782li1"><span class=3D"yiv5651185782s1">225</sp=
an></li><li style=3D"margin-top:0in;margin-bottom:0in;font-stretch:normal;"=
 class=3D"yiv5651185782li1"><span class=3D"yiv5651185782s1">195</span></li>=
<li style=3D"margin-top:0in;margin-bottom:0in;font-stretch:normal;" class=
=3D"yiv5651185782li1"><span class=3D"yiv5651185782s1">200</span></li></ol><=
div><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p></div><div><p class=3D"y=
iv5651185782MsoNormal">I get some oil blow by at the valve cover cap and ma=
ybe some drips from lower end seals (not sure if oil starts at valve cover)=
.&nbsp;</p></div><div><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p></div>=
<div><p class=3D"yiv5651185782MsoNormal">I=E2=80=99m sure I=E2=80=99ll hear=
 a suggestion to do a leak down test and / or wet compression.&nbsp;</p></d=
iv><div><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p></div><div><p class=
=3D"yiv5651185782MsoNormal">Oil filter forensics?</p></div><div><p class=3D=
"yiv5651185782MsoNormal"> &nbsp;</p></div><div><p class=3D"yiv5651185782Mso=
Normal">In the absence of obvious issues, how much of a tear down is warran=
ted?&nbsp;</p></div><div><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p></d=
iv><div><p style=3D"margin-bottom:12.0pt;" class=3D"yiv5651185782MsoNormal"=
>Jim</p></div></div><p class=3D"yiv5651185782MsoNormal">Sent from my iPhone=
</p><p class=3D"yiv5651185782MsoNormal"> &nbsp;</p></div></div></blockquote=
></div></div></div>_______________________________________________<br><a ym=
ailto=3D"mailto:fot@autox.team.net"; href=3D"mailto:fot@autox.team.net";>fot@=
autox.team.net</a><br><br><a href=3D"http://www.fot-racing.com"; target=3D"_=
blank">http://www.fot-racing.com</a><br><br>Donate: <a href=3D"http://www.t=
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t@att.net</a><br><br><br></div>
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