[Spits] Spitfires Digest, Vol 6, Issue 103 Timing Cover Screw Stripped

[Roger Elliott]

Thank you everyone that made suggestions on what to do.

I decided to start with the Helicoil solution as I had the items 
necessary and figured if it did not work, I could go to plan B.

I put the Helicoil in and it is holding fine.

Thanks Everyone!

Roger Elliott
On 12/17/2012 01:10 PM, Glenn Franco wrote:
> Roger
> If you buy a helicoil thread repair kit for that size thread you will 
> find that half the inserts are half the depth of the standard thread 
> insert.
> I think it's 5/16"x20 or 1/4"x 20.
> I've run into this problem on my Spit racer and many engines I have 
> rebuilt in the last couple of years.
> It worked on my race car.  If their are any threads proud of the 
> surface, grind them off.
> Everything you need to do the thread repair other than the drill is in 
> the kit.
>
> Another fix would be to fill the hole with weld, re-drill and tap.
> It's a bit difficult to drill the weld however.
>
> Glenn
>
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 16 Dec 2012 14:17:46 -0600
> From: Roger Elliott <elliottr at rmi.net>
> To: Spitfire list <spitfires at autox.team.net>
> Subject: [Spits] Top Timing cover Screw
> Message-ID: <50CE2C6A.8060805 at rmi.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi All,
>
>
> I am putting my engine back together.  One of the screws at the top
> timing cover, is held in by the the front engine plate being threaded.
> Right behind that screw is the mounting bracket for the alternator.
>
> Well, the threads in the engine plate are to stripped to hold the screw,
> and I can't put a nut on the backside of the plate as the bracket does
> not allow room for one.
>
> Has anyone else run into this problem?  Did you find a solution?
>
> I have thought about using JB Weld, but I am not sure it is the best
> solution.
>
> Thanks,
> Roger Elliott
> 80 Spitfire
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 16 Dec 2012 15:31:59 -0600
> From: "Bill Gingerich" <wrgingerich at gmail.com>
> To: "'Roger Elliott'" <elliottr at rmi.net>, "'Spitfire list'"
>     <spitfires at autox.team.net>
> Subject: Re: [Spits] Top Timing cover Screw
> Message-ID: <000b01cddbd4$c8cd2650$5a6772f0$@com>
> Content-Type: text/plain; charset="us-ascii"
>
> I think I put a helicoil in the block on mine.
> BillG
>
> -----Original Message-----
> From: spitfires-bounces at autox.team.net
> [mailto:spitfires-bounces at autox.team.net] On Behalf Of Roger Elliott
> Sent: Sunday, December 16, 2012 2:18 PM
> To: Spitfire list
> Subject: [Spits] Top Timing cover Screw
>
> Hi All,
>
>
> I am putting my engine back together.  One of the screws at the top 
> timing
> cover, is held in by the the front engine plate being threaded.
> Right behind that screw is the mounting bracket for the alternator.
>
> Well, the threads in the engine plate are to stripped to hold the 
> screw, and
> I can't put a nut on the backside of the plate as the bracket does not 
> allow
> room for one.
>
> Has anyone else run into this problem?  Did you find a solution?
>
> I have thought about using JB Weld, but I am not sure it is the best
> solution.
>
> Thanks,
> Roger Elliott
> 80 Spitfire
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