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Moss Motors, Ltd » MGB/C » Mechanical » Engine rebuild question

New pistons for 72 MGB

Last post 08-16-2009, 3:16 PM by dorndorff. 4 replies.
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  •  06-04-2009, 4:31 PM 19736

    New pistons for 72 MGB

    Reply Quote
    I have a 72 MGB with an 18V engine.  I'm rebuilding and want to put the 8.7:1 pistons instead of the OE 8.0:1 pistons.  Do I have to modify anything in the head to do this? 

  •  06-05-2009, 7:56 AM 19743 in reply to 19736

    Re: New pistons for 72 MGB

    Reply Quote
    No.
    Motorbill
    From Lola to Land Rover, If it's British and has wheels, it's likely I've bloodied me knuckles thereupon

  •  06-19-2009, 2:24 PM 19884 in reply to 19743

    Re: New pistons for 72 MGB

    Reply Quote
    Thanks.   I got to thinking...this will not make it difficult to run on pump gas will it?

  •  06-20-2009, 1:21 PM 19892 in reply to 19884

    Re: New pistons for 72 MGB

    Reply Quote
    No.
    Motorbill
    From Lola to Land Rover, If it's British and has wheels, it's likely I've bloodied me knuckles thereupon

  •  08-16-2009, 3:16 PM 20689 in reply to 19892

    Engine rebuild question

    Reply Quote

    I'm rebuilding by 1972 MGB engine.  Which plastiguage (green or red) am I supposed to use and what should the clearance be?  My old Hayes manual doesn't have such a thing. 

    Also, I replaced the cam/tappets.  I get the horror story that you have to start the engine and make sure the lifters are turning, throwing oil all over your nice clean engine compartment (and garage and you).