[TR] TR3/4 tappets

[Jonas Payne]

There had been a series of failed tappet/cam issues with new lifters.  Many
of the new lifters failed to meet the Rockwell hardness test of the ones
coming out.  

The whole ZDDP /Flat Tappet issue happened at the same time.  Ultimately, I
believe it had more to do with the break in lube/oil than the hardness of
the Tappets, as everybody in the hobby was having the same issue - not just
the TR guys.

Jonas Payne
PBR Consulting
702-882-6711

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of John & Pat Donnelly
Sent: Wednesday, September 11, 2013 8:10 PM
To: 'Triumphs'
Subject: Re: [TR] TR3/4 tappets

It was told to me by a TR restorer in the bis for 34 years to only use the
heavy duty ones from BPNW. And I believe him, not the internet. In fact one
of the lightened ones I had in my engine destroyed itself after 3 years and
would have took the cam with it were it not for the cracked block.

Johnnie
67 TR4A

> 
> Moss and British Parts Northwest have a lightened and oil drilled 
> tappet with similar part descriptions but BPNW is less than half the 
> price of Moss. (half $ x 8 is hard to ignore). But it is for a street 
> engine and I could save more money and buy the stock ones. Any 
> opinions?
> 
> Allen

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