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Author Topic: 75 Z Engine cleaning  (Read 1720 times)

RMK800

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75 Z Engine cleaning
« on: September 12, 2019, 05:10:30 am »
Tried a new method of cleaning and shining the Z free air engine. I used to use crushed glass or sand to initial water blast clean the whole engine. Then glass bead water blast to smooth and polish the engine to a satin smooth finish better than factory by far. This time I went with crushed walnut to clean the engine as walnut is softer than the aluminum so I hoped it would result in less of a rough finish before glass bead water blasting. Then glass bead blasted the entire engine and carbs. My theory worked excellent so decided to post the results. First 3 pics are before pics.
79 TX 340
78 el Tigre 5000
76 TX 440
75 Sno Twister 440
75 340 Z
74 el Tigre 295
74 TX 440

Vintagesleds.com

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    RMK800

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    Re: 75 Z Engine cleaning
    « Reply #1 on: September 12, 2019, 05:16:19 am »
    These pics are of the final product. The walnuts cleaned the engine excellent and did not roughen the surface at all. If you just want to clean the engine just use walnuts and you will have a clean grime free engine without the roughed up look of typical abrasive media. I wanted a shiny finish that Glass beads provide. The glass beads actually smooth the aluminum so the grime does not have a place to grab onto. An engine I bead blasted 2 years ago and have raced a lot shows no evidence of dulling or collecting grime.
    79 TX 340
    78 el Tigre 5000
    76 TX 440
    75 Sno Twister 440
    75 340 Z
    74 el Tigre 295
    74 TX 440

    mr bolens

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    Re: 75 Z Engine cleaning
    « Reply #2 on: September 12, 2019, 02:01:52 pm »
    Did you do it with it all together or did you just put together to clean it

    RMK800

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    Re: 75 Z Engine cleaning
    « Reply #3 on: September 13, 2019, 02:08:38 am »
    Together. Sealed off all openings well.
    79 TX 340
    78 el Tigre 5000
    76 TX 440
    75 Sno Twister 440
    75 340 Z
    74 el Tigre 295
    74 TX 440

    polaris-case

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    Re: 75 Z Engine cleaning
    « Reply #4 on: September 13, 2019, 02:47:32 am »
    WOW   That looks awesome 👍   Dale

    mr bolens

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    Re: 75 Z Engine cleaning
    « Reply #5 on: September 13, 2019, 03:51:51 pm »
    Thanks

    Vics stuff

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    Re: 75 Z Engine cleaning
    « Reply #6 on: September 13, 2019, 09:00:21 pm »
    I use ultra fine glass beads on all my bright work.
     Vic

    oldracer

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    Re: 75 Z Engine cleaning
    « Reply #7 on: September 21, 2019, 12:58:15 am »
    What kind of gun you use for that?

    RMK800

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    Re: 75 Z Engine cleaning
    « Reply #8 on: September 25, 2019, 04:31:49 am »
    pressure washer attachment from Princess Auto in Canada. Likely get the same in US
    79 TX 340
    78 el Tigre 5000
    76 TX 440
    75 Sno Twister 440
    75 340 Z
    74 el Tigre 295
    74 TX 440

    RMK800

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    • Posts: 157
    Re: 75 Z Engine cleaning
    « Reply #9 on: September 25, 2019, 04:34:02 am »
    I use ultra fine glass beads on all my bright work.
     Vic
    What is the bead size number Vic that you use.
    79 TX 340
    78 el Tigre 5000
    76 TX 440
    75 Sno Twister 440
    75 340 Z
    74 el Tigre 295
    74 TX 440

    Vics stuff

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    Re: 75 Z Engine cleaning
    « Reply #10 on: March 14, 2020, 08:22:12 am »
    RMK800   I use ultra fine glass. I think that it is 180 - 220 grit  @ 45 psi.
     Works great.
     Vic