[Mg-mmm] J2 fuel tank mounted reserve valve

[Roger Burnett]

Hi:

Ibm interested in this solution because the brass motorbike-type fuel tap on my MG M-type has seized up.  We suspect that the ethanol in modern fuel is the culprit.

The data sheet indicates that the grease is resistant to ethanol but also that it is somewhat soluble in fuel.  This suggests that valves would have to be re-greasing regularly.

What has been your experience with longevity?

Thanks

Roger Burnett


> On Aug 28, 2017, at 4:42 PM, Mark Saperstein <mmmouth at cox.net> wrote:
> 
> Hi Sky & Chris,
> FWIW:
>  My F type diverter valve is mounted low on the forward frame below the
> divers floorboard and was leaking both air when trying to start and fuel when
> parked !
>  Solved problem by machining a solid brass "cork" drilled to provide pathways
> for the main and reserve positions but most importantly it is lubricated and
> sealed from leaking using EASY TURN fuelproof grease that I bought at Aircraft
> Spruce Co.
>  Maybe this can help you too.
> Best,
> Mickey
> 
> ceci n'est pas une voiture.......c'est un art de vivre.
> 
>> On Aug 27, 2017, at 7:14 PM, Chris Nowlan <nowlanc at comcast.net> wrote:
>> 
>> Hi Sky,
>> 
>> These seals are always troublesome, particularly if the car is laid up for
>> extended periods which allows the seals to dry out & shrink. Same is true
> of
>> P-N valves which are basically the same.
>> 
>> Moss does stock # 589-220 cork seals which are used on early TR2's and
> early
>> TR3 that use a very similar valve. The diameter is correct but they are a
>> bit short, two can be glued together and then the end of the seal needs to
>> be cut at a 45 degree angle. Before fitting, soak for some significant
>> period in oil.   As a last resort, consider using silicone caulk to cement
>> the whole valve together and then rely on the "dipstick method"
>> 
>> Someone was offering Teflon "corks" but can't recall who that was.
>> 
>> Good luck
>> 
>> Chris Nowlan
>> L2 002
>> 
>> -----Original Message-----
>> From: Mg-mmm [mailto:mg-mmm-bounces at autox.team.net] On Behalf Of Schuyler
>> Hoffman
>> Sent: Saturday, August 26, 2017 6:56 PM
>> To: mg-mmm at autox.team.net
>> Subject: [Mg-mmm] J2 fuel tank mounted reserve valve
>> 
>> Does anyone know where I can get a replacement seal for the fuel reserve
>> valve  mounted on the top of the fuel tank on my J2?  The seal has dried
> up,
>> cracked, and contacted so it doesn't seal anymore.  The fuel pump just
> sucks
>> air through the top of the valve.
>> 
>> 
>> 
>> Sky Hoffman
>> 
>> J2648
>> _______________________________________________
>> 
>> Mg-mmm at autox.team.net
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $11.47
>> Archive: http://www.team.net/archive
>> Forums: http://www.team.net/forums
>> Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/mg-mmm/nowlanc@comcast.net
>> 
>> 
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> _______________________________________________
>> 
>> Mg-mmm at autox.team.net
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $11.47
>> Archive: http://www.team.net/archive
>> Forums: http://www.team.net/forums
>> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/mg-mmm/mmmouth@cox.net
> _______________________________________________
> 
> Mg-mmm at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $11.47
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: http://autox.team.net/mailman/options/mg-mmm/burnett@wistar.org