[Fot] Fwd: Racetorations TR2 - 4A 87mm - 89mm Thick Wall Piston Liner - Racetorations from Racetorations UK

van.mulders.marcel at telenet.be van.mulders.marcel at telenet.be
Mon Dec 16 13:39:00 MST 2019




Van: "van mulders marcel" <van.mulders.marcel at telenet.be> 
Aan: "Phil Gott" <vfracing at aol.com> 
Verzonden: Maandag 16 december 2019 21:37:40 
Onderwerp: Re: [Fot] Racetorations TR2 - 4A 87mm - 89mm Thick Wall Piston Liner - Racetorations from Racetorations UK 

That's why the copper gaskets are a bit thicker than the steel ones. 
The liners of Darryl are sitting a little bit lower (some 0.006 : probably not relevant?) and the block can be milled : that is surely an advantage to get a flat top face and the right protrusion of the liners everywhere. Few blocks are truly flat and in most cases the protrusion is not even everywhere. So I do agree that there is a lot to say for the longer liners that Daryll is selling, not only the 72 £ a set! 
Marcel 

Van: "fot" <fot at autox.team.net> 
Aan: "Tony and Annie Garmey" <horizonracing at msn.com> 
Cc: "fot" <fot at autox.team.net>, "fubog1" <fubog1 at aol.com> 
Verzonden: Maandag 16 december 2019 19:33:44 
Onderwerp: Re: [Fot] Racetorations TR2 - 4A 87mm - 89mm Thick Wall Piston Liner - Racetorations from Racetorations UK 

Daryl advocates decking the block as well To get proper protrusion. Eliminating the gasket reduces variation in protrusion due to variable gasket thicknesses, and also eliminates some of the possible loss of protrusion due to gasket compression ( more likely with copper than with steel). 

Sent from my iPhone 



On Dec 16, 2019, at 1:02 PM, Tony and Annie Garmey via Fot <fot at autox.team.net> wrote: 





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Regardless of who makes or supplies the liners , with the correct protrusion, the liner will hourglass . 
Only way to correct this is the use of a torque plate and then proceed with boring and honing to final finish size . 

Yes , a lot of work but you’ll get better ring seal and hopefully not stick a piston :-) 

Merry Christmas to all 
T 

Sent from my iPhone 

On Dec 16, 2019, at 9:55 AM, fubog1 via Fot < [ mailto:fot at autox.team.net | fot at autox.team.net ] > wrote: 


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The liners distort a lot when torqued down, even 87mm. 
I have no experience with the liners in question, so can't offer anything on them. 
Glen 

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Why thicker walls on a 87mm liner, they are strong enough with the normal thickness? 
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-----Original Message----- 
From: van.mulders.marcel--- via Fot < [ mailto:fot at autox.team.net | fot at autox.team.net ] > 
To: Greg Blake < [ mailto:gblake58tr3 at icloud.com | gblake58tr3 at icloud.com ] > 
Cc: fot < [ mailto:fot at autox.team.net | fot at autox.team.net ] > 
Sent: Mon, Dec 16, 2019 10:49 am 
Subject: Re: [Fot] Racetorations TR2 - 4A 87mm - 89mm Thick Wall Piston Liner - Racetorations from Racetorations UK 

The figure of 8 gaskets are thicker than 0.010" : 0.016 or 0.018". 
Why thicker walls on a 87mm liner, they are strong enough with the normal thickness? 
Boring up to 89mm : I would rather buy 89mm liners, without the need of machining. 
I bought several parts from Racetorations (Darryl Uprichard) and was always satisfied. 
Marcel. 

----- Oorspronkelijk bericht ----- 
Van: "fot" < [ mailto:fot at autox.team.net | fot at autox.team.net ] > 
Aan: "fot" < [ mailto:fot at autox.team.net | fot at autox.team.net ] > 
Verzonden: Zondag 15 december 2019 18:49:51 
Onderwerp: [Fot] Racetorations TR2 - 4A 87mm - 89mm Thick Wall Piston Liner - Racetorations from Racetorations UK 

I came across this advertisement today and was curious if anyone has used these liners and done so w/o fo8 gaskets as described in the listing. 

Thanks 
Greg. 


[ http://www.racetorations.co.uk/triumph-c56/tr3-c4/tr3-engine-c13/tr3-engine-bottom-end-c160/racetorations-tr2-4a-87mm-89mm-thick-wall-piston-liner-p914 | http://www.racetorations.co.uk/triumph-c56/tr3-c4/tr3-engine-c13/tr3-engine-bottom-end-c160/racetorations-tr2-4a-87mm-89mm-thick-wall-piston-liner-p914 ] 


Sent from my iPhone 
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