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cus_deluxe

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i have a cylinder that id be happy to look at this morning to check on that seal.
 

brad ruch

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Three bond will seal it with no O ring.

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NPKenny

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Three bond will seal it with no O ring.

Even with the recessed grove for the seal to sit in? There isn’t much flange material on the covers either, especially around the screw holes.

I’ve used Yamabond, Dirko, and 518 on cylinder bases, but they are a more solid metal to metal flange.
 

brad ruch

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Even with the recessed grove for the seal to sit in? There isn’t much flange material on the covers either, especially around the screw holes.

I’ve used Yamabond, Dirko, and 518 on cylinder bases, but they are a more solid metal to metal flange.
I have seen it done on 372 XT.

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srcarr52

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I wouldn't trust that in the long term.

Dirko.....maybe.

Dirko, threebond, hondabond, yamabond... I've heard it was all the same stuff until recently. I think hondabond cheeped out and went with something else.
 

Stump Shot

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Dirko, threebond, hondabond, yamabond... I've heard it was all the same stuff until recently. I think hondabond cheeped out and went with something else.

The "bonds" all come from Threebond of Japan, they do have different products in there line.
Dirko is made by Elring of Germany, once again they have multiple products as well.
 

Veljko

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I use victor reinz reinzoseal. It is +300 degreas celsius gasket maker without gasket. When it cures it is like glued toghether.
 

Stump Shot

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Sir no sir. None at all.

I unrolled the tube to read it.....I have Dirko HT.

Which is the product Stihl uses, it is an RTV sealant, Elring doesn't list fuel as one of the things it's resistant to, unless that is covered under other etc.. Obviously, it's in enough products to know it works well and if Tree Monkey catches you using something else, expect and azz chewing. Lol
https://www.elring.com/fileadmin/Da...chtmassen/Dirko_HT/TD_Dirko_HT_EN_02-2017.pdf

Which leads me to another interesting point, lots old Mac I've torn down, the case was sealed with clear silicone from the factory. Might just be more worry, than what really works/doesn't.
 
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