[TR] FW: anyone have experience using APR head bolts

[dave]

+1 on ARP head studs.  The nicest thing about them (and probably not unique to them) is the allen wrench top so you can screw them in nicely without messing them up

 

From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of wbeech at flash.net
Sent: Thursday, September 5, 2019 6:46 PM
To: TERRY SMITH <terryrs at comcast.net>
Cc: Triumphs <triumphs at autox.team.net>
Subject: Re: [TR] anyone have experience using APR head bolts

 

I first went to ARP studs after a stock one snapped with enough force, 105ftlbs, to create at sizable dimple/bump in the middle of my bonnet.  

Bill B

Sent from my IBM 8088


On Sep 5, 2019, at 5:32 PM, TERRY SMITH <terryrs at comcast.net <mailto:terryrs at comcast.net> > wrote:

Just for the complete review, I'm sure these are fine head bolts.  Just my opinion, though, the key to successful head installation is a good head gasket and, more importantly, making sure the figure 8 gaskets are seated correctly using pre-head installation compression via torquing down the sleeves to achieve the perfect (ISTR) 003 proud across all sides.  Ask me how I know!

 

Terry Smith, TR3A  TS 58667

New Hampshire

On September 5, 2019 at 6:17 PM "Wbeech at flash.net <mailto:Wbeech at flash.net> " <wbeech at flash.net <mailto:wbeech at flash.net> > wrote: 

Have used APR on my last 3 TR3 rebuilds, never a problem.  Never heard anything about not having to re-torque.   I do after 2-3 heat cycles then again at 200 mile with the first oil change.  

Bill 

Sent from my IBM 8088


On Sep 5, 2019, at 5:10 PM, Sujit Roy < triumphstag at gmail.com <mailto:triumphstag at gmail.com> > wrote: 

I used ARP head bolts on my last Stag. I torqued down the head, but never in the last 5 or so years did I re-torque the heads. I recall speaking to a technician over at APR and he said no need to re-torque  I have not run into an issue. But am wondering what other's have to say.

 

 

Sujit 


 

-- 

Sujit Roy 
Cupertino, California


https://triumphstagblog.wordpress.com/ 

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