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| Double gaskets https://www.ausmini.com/forums/viewtopic.php?f=2&t=9316 |
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| Author: | J_A_M [ Thu Jul 21, 2005 9:28 am ] |
| Post subject: | Double gaskets |
I have a sealing face that is a little worse for wear. It's where the heater pipe bolts to the cylinder head (on the drivers side). The heater pipe flange was rooted, but I cleaned that up with a flat file. The face on the head is a little corroded....and this I can't change. I put 2 gaskets between the flange and head. Is this acceptable? Or will this leak? It was leaking with a single gasket. 
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| Author: | Metalfab_101 [ Thu Jul 21, 2005 9:35 am ] |
| Post subject: | Re: Double gaskets |
J_A_M wrote: I have a sealing face that is a little worse for wear. It's where the heater pipe bolts to the cylinder head (on the drivers side).
The heater pipe flange was rooted, but I cleaned that up with a flat file. The face on the head is a little corroded....and this I can't change. I put 2 gaskets between the flange and head. Is this acceptable? Or will this leak? It was leaking with a single gasket. Not sure if a 2nd gasket is going to help. You might get away with a gasket & some RTV silicon on each side though. How deep is the pitting? |
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| Author: | J_A_M [ Thu Jul 21, 2005 9:40 am ] |
| Post subject: | |
hmmm...my theory was that the double thickness would help squash into the pitting to create a seal. The pitting isn't deep, but it's no 'flat face'  I can only speculate about the depth.....at a guess maybe .005" - .010"
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| Author: | Metalfab_101 [ Thu Jul 21, 2005 9:49 am ] |
| Post subject: | |
Is this on JAM? And the head's just been all painted and looks yummy? Because I was going to suggest a better way to go is to get the pitting brazed up and machined flush. What a PITA huh 
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| Author: | kazjim [ Thu Jul 21, 2005 10:02 am ] |
| Post subject: | |
What about building up the mating face with some DevCon ? (Engineering supplies....) should be heat-resistant to about 1700'f ........ you can file it, shape it, whatever.... just give it enough time to go-off ... Its what i did with my Thermo housing on the last 202 head i used.... hasnt leaked since... J |
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| Author: | doogie [ Thu Jul 21, 2005 10:14 am ] |
| Post subject: | |
Anton, give it a go with 2 gasket & some silicon, i had the same problem on Pen's Clubman it worked on it. Doogie |
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| Author: | J_A_M [ Thu Jul 21, 2005 10:44 am ] |
| Post subject: | |
as of last night I have put 2 gaskets with copious amounts of Loctite #4 gasket goo. I am hoping the hard setting goo, plus the 2 gaskets will be enough. In theory I should have looked at this when the head was stripped bare.... I could have had that face machined........ 
Devcon will be the alternative I think. Heard about it years ago....never used it (yet). Cheers for the feedback guys. |
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| Author: | drmini in aust [ Thu Jul 21, 2005 7:41 pm ] |
| Post subject: | |
 Bend the tin flange up a bit at each end, it's probably bent the other way from over-tightening. 
I uas Loctite 515 Master gasket on all the water joints now- it's magic stuff. Would want to be for $18/tube, hey. 
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| Author: | 1310/71 [ Thu Jul 21, 2005 10:24 pm ] |
| Post subject: | |
drmini in aust wrote: :idea: Bend the tin flange up a bit at each end, it's probably bent the other way from over-tightening.
I uas Loctite 515 Master gasket on all the water joints now- it's magic stuff. Would want to be for $18/tube, hey. It's $25 a tube west of blacktown! But it is good stuff I'll agree. |
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| Author: | drmini in aust [ Thu Jul 21, 2005 10:27 pm ] |
| Post subject: | |
It's also the reason my gearboxes don't leak. For a while, anyway. 
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| Author: | J_A_M [ Fri Jul 22, 2005 8:29 pm ] |
| Post subject: | |
well...the double gasket and Loctite #4 sorted me out. Took JAM for a rap this afternoon and no leaks
mmmmm.....sniff sniff....you smell that?? I can smell rego 
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