[Healeys] Overdrive Question

[David Porter]

I use Yamabond. For sealing Al motorcycle engines. I like it. DaveP


On 11/5/2016 3:01 PM, Roger Grace wrote:
> Sorry to reopen this, but have this same leak in my BJ8 OD and fixing 
> it is one of my Winter projects.
> Given that the black sealant stuff that was used before didn’t last 
> (have no idea how long ago or what it is) and that there is no oil 
> pressure on the joint, am sensitive to using what is the appropriate 
> goo that will last and contain the oil.
> Have done some checking around and the Hylomar universal blue is used 
> by some shops that fix OD’s.
> Overdrive Services (ex Laycock people in UK) tell me that the 
> originals were sealed with a product called Wellseal.
> Nowadays they use a Wurth sealant that mentions flange mating in its 
> website blurb.
> BTW they said that they could supply me with a gasket for this joint 
> that seems like a good idea ?
> The reality is that these are 2 Al flanges that are mated without a 
> gasket. I wonder why ?. Plan to do some careful flatness checking when 
> have my hands on them. Has anyone had a problem with the mating 
> flatness ?  do they have a tendency to warp over the years and maybe 
> abuse too ? given the shape not easy to machine flat - why do they leak ?
> Comments/ideas please.
> rg
> *From:* David Porter
> *Sent:* Wednesday, October 26, 2016 7:15 AM
> *To:* Bob Spidell ; John Spaur
> *Cc:* healeys
> *Subject:* Re: [Healeys] Overdrive Question
>
> seems like any RTV that is oil compliant will work. There is no 
> internal pressure that will force oil out. The oil level in the OD is 
> just above the operating shaft level, hence the need for the o-rings 
> on the shaft.
>
> DaveP adding to the wisdom....
>
>
> On 10/26/2016 7:40 AM, Bob Spidell wrote:
>> Soooooooo ... both types of Hylomar WILL seal the joint?
>> ------------------------------------------------------------------------
>> *From: *"John Spaur" mailto:jmsdarch at sbcglobal.net
>> *To: *"WILLIAM B LAWRENCE" mailto:YNOTINK at msn.com, "healeys" 
>> mailto:healeys at autox.team.net
>> *Sent: *Tuesday, October 25, 2016 8:27:53 PM
>> *Subject: *Re: [Healeys] Overdrive Question
>>
>> In my experiences neither of the two types Hylomar will not seal that 
>> joint.
>>
>> John Spaur
>>
>> San Jose
>>
>> *From:*Healeys [mailto:healeys-bounces at autox.team.net] *On Behalf Of 
>> *WILLIAM B LAWRENCE
>> *Sent:* Sunday, October 23, 2016 8:26 PM
>> *To:* healeys at autox.team.net
>> *Subject:* [Healeys] Overdrive Question
>>
>> …disassembly of the OD because it is seeping oil at the clutch ring. 
>> There are no gaskets, but I would like to smear some Hylomar on the 
>> joint faces to stop the leak.
>>
>>
>> _______________________________________________
>>
>>
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>
> -- 
> Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM 
> 87107 505-352-1378 Go HERE: my world www.porterbikes.com/
>
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-- 
Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM 
87107 505-352-1378 Go HERE: my world www.porterbikes.com/
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