Type 4 Alternator tin big v small hole?

Discussion in 'Mech Tech' started by Deefer66, Jul 1, 2019.

  1. Which one would an 1800 need to fill that gap?[​IMG]

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  2. 50 AMP Alternator is big hole, 70 AMP is small hole I believe
     
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  3. Best go identify my alternator then... ta

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  4. Type 4 Fan cover.jpg
     
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  5. davidoft

    davidoft Sponsor

    I have some tinware , measurements of yours would be handy
     
  6. The rubber elbows are different too !
     
  7. Which bit of the hole would you like measuring?

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  8. If he asks you to bend over, don't
     
  9. davidoft

    davidoft Sponsor

    The diameter;)
     
  10. Problem is I don't have a hole to measure just a gap where a hole should be...
    [​IMG]

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  11. davidoft

    davidoft Sponsor

    The diameter of the round ridge on the alternator;)
     
  12. Looks about 105mm on that photo..is that close enough?

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  13. davidoft

    davidoft Sponsor


    I’ve got a couple I’ll have a measure
     
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  14. There's also a plastic gasket that fits behind the tin btw :)
     
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  15. And it's hard to find to probably... Stanley knife and a kitchen tile time again!

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  16. There should be a gasket on the alternator cover (where the cooling air elbow fits), but it’s almost always missing, and there are two types of plastic seal behind the pulley depending on which tin is fitted.

    Lots of info here: https://www.thesamba.com/vw/forum/viewtopic.php?t=615013

    And that engine ^ is missing the seal from the oil filler to the tin.
     
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  17. Ta... missed that one... got distracted by the big sponge engine bay seal amongst other interesting mods..
    hard to spot what you havn't got when it's all a little bit different from the CJ tinware you're used to

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  18. T4 tinware, gaskets and seals are like a big jigsaw with no picture on the lid, where pieces were changed on a regular basis throughout production. Except, not completing the jigsaw properly could get you a ride home on a tow truck
     
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  19. 50C1DE69-E73B-450A-A55B-04B11CC6D2DB.png
    One has been listed on ebay, not sure if it’s the right one for your bus £18
     

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