[TR] valve clearance with unknown 270 cam
Jerry Van Vlack
jerryvv at roadrunner.com
Mon Jun 11 14:26:49 MDT 2018
British Parts Northwest sells 270 cams I'd start with them. They might be
Piper or Newman cams which are supplied via one of the English suppliers.
I'd also discuss appropriate valve lash with a roller rocker supplier such
as Richard Good (GoodParts) who has always been very helpful to me and
supplies roller rocker assemblies for 4 cylinder wet liner engines.
JVV
-----Original Message-----
From: Wbeech at flash.net
Sent: Monday, June 11, 2018 1:24 PM
To: Randall
Cc: triumphs at autox.team.net ; David York
Subject: Re: [TR] valve clearance with unknown 270 cam
Thank Randall, interesting reading. And I learned a new word “Squish”, I
always called it “Slop”. Sounds like more particulars about the cam are in
order.
The previous owner of my TR4A motor, in a ‘58 TR3, installed an aluminum
head and roller rockers. They look like the ones in the Moss catalog but I
am not sure that is the origin. I have set everything at 0.010”, but still
get very audible sounds from the valve train. I have not readjusted to any
closer tolerance as I am not familiar enough with these non-stock
components.
Any suggestions as always are appreciated.
Thanks,
Bill B
Sent from my Apple II+
On Jun 11, 2018, at 11:51 AM, Randall <TR3driver at ca.rr.com> wrote:
You might find this interesting
http://www.tildentechnologies.com/Cams/Tip_Lash.html
-- Randall
> I have 1960 tr3a owned for 5 years runs great no trouble strong puller
> idles ok what do you think valve clearance might be? engine
> is fitted with 86mm pistons and tr4 dual exhaust, slightly noisy
> tappets.many thanks Dave
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