Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
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Sump bolt stripped. Damn, blast and bugga.

Discussion in 'Cal 1400 8V' started by John L, Oct 31, 2019.

  1. sir fred

    sir fred Cruisin' Guzzisti

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    Does this mean the sump can not be removed? If so, with it disconnected from the engine, is there now access to retap the damaged thread?
    I have found a 12 x 1.25 drain plug.
     
  2. John L

    John L Cruisin' Guzzisti GT Famiglia

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  3. sir fred

    sir fred Cruisin' Guzzisti

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    Thanks for the reply!. It is great that it can be removed without loosening the engine.
    I will be tackling this at my next oil change in the Spring up here.
    Enjoy your riding season!...i think it's pretty much year round your way.
     
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  4. John L

    John L Cruisin' Guzzisti GT Famiglia

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    sir fred, I got it back today. The original bolt is a M10 x 1.5 so you will need to drill it out to take the M12 x 1.25 and there is not a lot of room to spare inside the sump behind the hole for the plug. My mechanic did mine on the bench and while re-tapping it for the insert the tap bottomed out behind the hole and put a small crack in the sump which had to be welded, it would be very difficult to do while still in the frame. The sump is quite thin in that spot and it only took a light touch to crack it.
     

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  5. John L

    John L Cruisin' Guzzisti GT Famiglia

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    While cleaning the sump to put it back on I noticed that, because of the design, some oil (100cc) is trapped in the area behind the filter housing and the mesh filter and cannot be drained. I wonder if this is taken into account when Guzzi state the refill capacity. Maybe this along with oil left in the cooler and various galleries etc. around the engine is the reason so many get over filled when changing the oil. I used water to measure it as it was easier to clean up but it doesn't show up too well in the pic.
     

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    Last edited: Nov 8, 2019
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