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A65 Case joining paste/sealer #430706
04/20/12 12:32 pm
04/20/12 12:32 pm
Joined: Jun 2011
Posts: 55
UK
S
Steve S Offline OP
BritBike Forum member
Steve S  Offline OP
BritBike Forum member
S
Joined: Jun 2011
Posts: 55
UK
Have had a persistent oil leak from around the sump plate and a couple of other jobs needed doing so i pulled the engine out and split the cases in the dim distant past this engine has throw a rod and the case has been welded and on examination its distorted near the sump plate I used Loctite Gasket Eliminator 515 but to cure needs no air I could see the case don't pull tougher tight can get 14th feeler in it I don't want to use silicone sealer as petrol attacks it.

So what you recommendations guys ????

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Re: A65 Case joining paste/sealer [Re: Steve S] #430713
04/20/12 1:09 pm
04/20/12 1:09 pm
Joined: Sep 2002
Posts: 7,813
Seattle
Alex Offline

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Alex  Offline

BritBike Forum member
Joined: Sep 2002
Posts: 7,813
Seattle
I use Loctite 518, but looking at the data sheet there's not much difference between that and 515. They say it will fill a gap up to 0.025 mm. That's .010" and that's a pretty good gap, but you have to wait at least 72 hours to let it cure at that thickness.


A smattering:
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Re: A65 Case joining paste/sealer [Re: Steve S] #430727
04/20/12 2:07 pm
04/20/12 2:07 pm
Joined: Sep 2010
Posts: 18
SE Wisconsin
Squariel Offline
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Squariel  Offline
BritBike Forum member
Joined: Sep 2010
Posts: 18
SE Wisconsin
Alex, you meant 0.25mm, right?


58 & 59 Ariel Sq4
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Re: A65 Case joining paste/sealer [Re: Squariel] #430750
04/20/12 3:30 pm
04/20/12 3:30 pm
Joined: Sep 2002
Posts: 7,813
Seattle
Alex Offline

BritBike Forum member
Alex  Offline

BritBike Forum member
Joined: Sep 2002
Posts: 7,813
Seattle
Yes, sorry...decimal wandered over. Good catch.


A smattering:
'53 Gold Flash
'67 Royal Star
'71 Rickman Metisse
'40 Silver Star
'37 Rudge Special
sixtyseventy Lightboltrocket road racer...and many more.
Re: A65 Case joining paste/sealer [Re: Steve S] #430825
04/20/12 11:52 pm
04/20/12 11:52 pm
Joined: Apr 2005
Posts: 2,380
Bega NSW Australia
Mark Parker Offline
BritBike Forum member
Mark Parker  Offline
BritBike Forum member
Joined: Apr 2005
Posts: 2,380
Bega NSW Australia
There is silicon and silicon, 3bond supersealer is very good, its grey. Toyota use a black seal packing to seal sumps with no gasket and various other types of silicon based stuff for G/boxes etc. If these products had been available I'm sure BSA would have used them. I don't use many gaskets on my BSA and it seals better.
If you have it apart why not build up the low area with JB weld then use a file to true it up.


mark

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