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Thread: CA77 oil screen

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    CA77 oil screen

    Hi guys,
    i am wanting to remove the oil screen and filter to clean on my CA77, what do I need to look out for when removing and refitting. Thanks

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    Senior Member mike in idaho's Avatar
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    Just pull out the 6mm bolts holding the pump to the bottom of the crankcase and it drops right out.https://images.cmsnl.com/img/partsli...74981_cdd8.gif Remember, you need two gaskets to put it back together.
    '66 CL160
    '66 CB160
    '67 CL77
    '79 XS650
    '69 T100R
    '68 TR6R
    '69 T120R
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    Quote Originally Posted by mike in idaho View Post
    Just pull out the 6mm bolts holding the pump to the bottom of the crankcase and it drops right out.https://images.cmsnl.com/img/partsli...74981_cdd8.gif Remember, you need two gaskets to put it back together.
    many thanks for the prompt reply mike, looking at pictures of this item my main concern is the toothed wheel does it locate on anything up inside the engine that I can't see.
    if not what is it for? Thanks

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    Senior Member Flyin900's Avatar
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    It engages on a crank gear to drive the oil pump, as your removing the oil pump there with the screen attached over the pump. When reinstalling it the gear will rotate on the oil pump to engage the crank gear that will remain motionless at that point.
    1966 CL77 - 305cc - Gentleman's Scrambler
    1967 CL175K0 - Scrambler #802 engine
    1972 CB350F - Candy Bacchus Olive - Super Sport
    1973 CB350F - Flake Matador Red - Super Sport
    1975 CB400F - Parakeet Yellow - Super Sport
    1976 GL1000 - Goldwing Standard
    1978 CB550K - Super Sport

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    Thanks gentleman, Mr Bill Silver recommended I look at it after 7k miles since engine rebuilt. But oil has been changed regularly.

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    Super Moderator J-T's Avatar
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    Moved to 250/305 Engine section.
    1981 CM400T

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    Administrator LongDistanceRider's Avatar
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    Moved to Smaller Twins Engine section, oops.
    Moved back to 305
    Jim O'Brien
    1979 CM400T aka the Roadbike, 1978 CB400T1 semi restored, 1972 CL350K4 restoration and the 1971 SL350K1 disaster zone.
    Plus 2 SL350K0's , 2 SL350K1's, 1 CL350K0 and 1 CL350K1 waiting for space and time
    Contact: 408-239-9580 or [email protected]

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    Senior Member ballbearian's Avatar
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    Quote Originally Posted by Casamere View Post
    Thanks gentleman, Mr Bill Silver recommended I look at it after 7k miles since engine rebuilt. But oil has been changed regularly.
    I know for sure he would have said to clean the centrifugal oil filter. That is easy and should be done nearly every oil change. It is possible to have debris at the pump screen, but unlikely after a rebuild, unless there is a problem.

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