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Re: [TR] TR4A engine and clutch

To: Steven Dennis <tr4driver@verizon.net>
Subject: Re: [TR] TR4A engine and clutch
From: terryrs@comcast.net
Date: Sat, 20 Feb 2016 14:01:41 +0000 (UTC)
Cc: triumphs@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <07FEB86C-51DE-4447-825D-E2595054453F@verizon.net> <689038104.7172394.1455928925317.JavaMail.yahoo@mail.yahoo.com>
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Thread-topic: TR4A engine and clutch
Starters from TR3 TS 50000 on through the 4A, according to the Moss catalogue, 
are the same.  This is true for original and hi-torque starters.  That would 
seem to be when Triumph made the switch from shrink on to bolt on flywheel ring 
gears.  

Terry Smith, '59 TR3A  TS 58667
New Hampshire

----- Original Message -----
From: "Steven Dennis" <tr4driver@verizon.net>
To: "Dean Tetterton" <tr3a58@verizon.net>, "Andrew Uprichard" 
<auprichard@uprichard.net>
Cc: triumphs@autox.team.net
Sent: Friday, February 19, 2016 7:42:05 PM
Subject: Re: [TR] TR4A engine and clutch

The arrow is a TDC mark that should line up with a mark on the block. 



From: Dean Tetterton <tr3a58@verizon.net> 
To: Andrew Uprichard <auprichard@uprichard.net> 
Cc: triumphs@autox.team.net 
Sent: Friday, February 19, 2016 3:12 PM 
Subject: Re: [TR] TR4A engine and clutch 

Don't forget that the front engine plate is different. Motor mount location 
changed because of the change in frame width. 

Dean 


On Feb 19, 2016, at 6:01 PM, Andrew Uprichard wrote: 




So the engine I am building for the next TR3 is a TR4A engine. Easy enough to 
remove the plug and use the TR3 engine breather, but of course the flywheel is 
different and I need to get a new TR4A clutch. 
Questions: is there a throw-out bearing sleeve specific to the TR4A? Will a 
late TR3 starter work with the TR4A flywheel? Is there anything else I need to 
be aware of as I move along? 

By the way, just as an aside, why do flywheels have an arrow on the side, 
pointing towards the teeth? 
Andrew Uprichard 

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