On 1/13/2010 8:41 AM, A Daniel Cronin wrote:
> Gang,
> would hope this information is shared with the remainder of the list!!
>
> Regards,
> Dan Cronin
>
ARP bolts for the TR4 mains are HAR 3.500-5, while the washers are
200-8513.
For folks who haven't used ARP hardware before, they recommend cycling
(torque/loosen) new hardware 5 times before the final torque.
jim
>
>
> --- On *Tue, 1/12/10, J.C. Hassall /<jhassall@blacksburg.net>/* wrote:
>
>
> From: J.C. Hassall <jhassall@blacksburg.net>
> Subject: Re: [TR] TR-3/4 main cap bolts / ARP
> To: "Tony Drews" <tony@tonydrews.com>
> Cc: Triumphs@autox.team.net, jhassall@vt.edu
> Date: Tuesday, January 12, 2010, 11:09 PM
>
> On 1/12/2010 10:52 PM, Tony Drews wrote:
> > Anyone have info on dimensions for TR-4 main cap bolts? The
> manual shows 1/2" UNC but not the length. I'm trying to figure
> out what ARP bolts you would buy to replace the stock bolts, and
> also one that's 1/2" longer to allow for "strapping" the center
> main. If I had the dimensions (length) I could try to cross
> reference the engines that ARP lists main cap bolts for.
>
> Tony, 3.5 inches under the head. I can give you the ARP number
> tomorrow, but don't have access to my build log right now.
>
> jim
>
--
Jim Hassall
Blacksburg VA
'63 TR4 in autox preparation
99% finished, 90% to go
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