Jack:
I rebuilt my sons TR4 engin last year. It had about 50 miles on it when he
let me drive it to work. Well it was great, took it to 5000 rpm's in 1st,
2nd, 3rd and about 95 in 4th. Then slowed down to about 60 mph. I was told
some time ago brake them in like you are going to drive.
I raced a TR3 in E/P class for about 5 years and never had any problens
with the lower end, only head gaskets.
Good luck
Bob Kamholtz
ECOD
-----Original Message-----
From: Jack Brooks <brooks@belcotech.com>
To: Triumph List <Triumphs@autox.team.net>
Date: Friday, May 07, 1999 15:44
Subject: engine break-in
>
>Scions,
>
>As I approach the completion of my engine build, I figure it's a good time
>to open up a thread on engine break-in.
>
>When I did my emergency re-ringing job last spring (temporary patch), I
>increased my speed in 10 mph increments (from 30 to 65), every 100 miles
for
>the first 500 miles, combined with constantly speeding up 10 mph, then
>coasting down 10 mph. (This was suggested by a lister, whose name eludes
me
>right now. Don Howard, maybe) This was tedious, as well as a risk to life
>and limb here in the suburban New York City area. I'll do it again,
because
>it seems to have worked well, but if anyone has an easier procedure, I'd
>like to hear it.
>
>BTW - after the initial 30 minute run-in and also at the fist 500 miles
>interval, I re-torqued the head and changed the oil and filter.
>
>TIA,
>
>Jack Brooks
>1960 TR3A
>1974 Norton 850 Commando
>Hillsdale, NJ
>My car show: http://pages.hotbot.com/family/triumph
>
>
>
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