logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Passat 2.8 VR6 - Query on Water Pits on Head Post-Planning and Gasket Replacement

tomix110 5448 8
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Reply | New topic
  • #1 16429354
    tomix110
    Level 9  
    Hello.
    I am making a head gasket in VR6, and thus the head has gone to planning and replacing the seals.
    After the planing, there were such water pits on the head, in the area of the water channels (photo below).
    My question is does this bother you? Can it be sealed somehow?
    I thought about sealing this with Victor Reinz sealant.

    Any other ideas?
    Passat 2.8 VR6 - Query on Water Pits on Head Post-Planning and Gasket Replacement
    Rust on Embedded Online Conference on 16 July with 33 per cent discount for elektroda users
  • ADVERTISEMENT
  • #2 16429407
    szymitsu21
    VIP Meritorious for electroda.pl  
    the condition of the heads should be assessed by a grinder. There are places where they can and will be pitting.
    Which does not change the fact that if you are talking about sealing it with silicone, I am worried about this engine.
  • ADVERTISEMENT
  • #3 16429438
    tomix110
    Level 9  
    The grinder said that it does not bother you, and for common sense, what would the silicone be in this place?
    There are only water channels there, and I thought to put silicone on the head there only in these pits (as if to fill them) let it all freeze, and then screw the head on a new gasket etc. etc.
    All I mean is that this water has limited access there.
    This is just such a thought, so I ask what people think about such a topic, or are there any special fillers for such matters?
  • #4 16429454
    szymitsu21
    VIP Meritorious for electroda.pl  
    put on and take it easy.
    silicone will not do anything there, at most it will get into the cooling system and clog, for example, heaters.
  • ADVERTISEMENT
  • #5 16429464
    tomix110
    Level 9  
    So there is nothing that can be filled, so to speak?
  • #6 16429466
    Dziarski Hank
    Level 34  
    When you have to lubricate, people use Loctite 5972 or 3020 with heavily cooled engines
  • ADVERTISEMENT
  • #7 16429489
    kwok
    Level 40  
    There are many preparations with which you can fill it, only the filling must be flush with the plane of the head and have the hardness of aluminum to press the seal evenly, and this is not possible. To do this: etch, apply "liquid alu", sand. The whole thing is not very realistic to do and it does not make sense, considering that these are only water channels. My suggestion is to put a small layer of grease on the gasket (but not graphite) and put it on.
  • #8 16429493
    Anonymous
    Anonymous  
  • #9 16429535
    tomix110
    Level 9  
    Yes, this is not a crack.
    I submit then as you advise.
Reply | New topic
Report a violation of the law

Topic summary

The discussion revolves around the issue of water pits on the head of a Volkswagen Passat 2.8 VR6 after planing and gasket replacement. The user inquires about the implications of these pits and potential sealing solutions. Responses indicate that while pitting is common, sealing with silicone is not advisable due to risks of clogging the cooling system. Alternatives suggested include using Loctite products for heavily cooled engines and ensuring any filler used is flush with the head's surface. It is emphasized that the head's integrity should be verified post-repair, and a light grease application on the gasket is recommended.
Summary generated by the language model.
ADVERTISEMENT