timing mark R8
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Thread: timing mark R8

  1. #1
    Fellow Frogger! forzamacchi's Avatar
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    Default timing mark R8

    Hey All.. I am attempting to check the timing on my R8 with a gun. I see the timing marks on the case, but I cannot see the mark on the pulley. What should I be looking for? A line? What kind of mark? Thanks! Ben

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    COL
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    Quote Originally Posted by forzamacchi View Post
    Hey All.. I am attempting to check the timing on my R8 with a gun. I see the timing marks on the case, but I cannot see the mark on the pulley. What should I be looking for? A line? What kind of mark? Thanks! Ben
    Hi Ben

    As these motors are similar to an R12 there should be a small nick in the crankshaft pulley.

    When you find this small nick fill it with tippex or white paint, makes it easier to see when timing motor.
    Regards Col

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    There are near Heinz 57 varieties of crankshaft pulleys for the various motors, depending on the era. Usually there is a mark on the periphery of the crankshaft (fanbelt) pulley, which can be either well or poorly defined, depending on who was in charge of marking pulleys on a particular day.

    Try lining up the distributor rotor to No. 1 cylinder (No. 1 is flywheel end on a Renault motor) then have a look on the periphery of the crankshaft pulley for a mark, the mark should be close to the TDC mark on the timing cover pulley. Once it has been spotted, apply a decent spot of paint to the mark and the one on the timing cover.
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    Imagine a hacksaw cut as deep as it is wide, on the engine side of the pulley vee. That's TDC. There are different alignment marks on the timing case, depending upon motor. But once you find it, and then get the engine to TDC mechanically - e.g. rod through spark plug hole, to use an old fashioned but effective method, all will become obvious.

    Good luck.
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    JohnW

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    1000+ Posts renault8&10's Avatar
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    With my r12 powered 10, I have to time it from underneath, so as others have said it does depend if you have std setup or modified. Simons suggestion of setting TDC THEN looking for marks (top and underneath) makes sense.
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    Isn't there a TDC mark on the flywheel visible through an aperture in the bellhousing...? It's a bit hard to get to but a mirror should help.
    Every day when I wake up I reach up in the darkness with my eyes shut and if I cannot feel anything that resembles a wooden lid I know it will be a good day. No lid today.

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    1000+ Posts renault8&10's Avatar
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    Quote Originally Posted by 59 Floride View Post
    Isn't there a TDC mark on the flywheel visible through an aperture in the bellhousing...? It's a bit hard to get to but a mirror should help.
    On a Mini, yes.
    I don't think so on the r8, the marks are at the other end.
    KB


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    Quote Originally Posted by renault8&10 View Post
    On a Mini, yes.
    I don't think so on the r8, the marks are at the other end.
    I dunno about that, it would be worth checking, my R12/R10 mongrel Floride has these marks and I'm using a 10s bellhousing, there is a pointer mark on the bellhousing aperture and a deep groove on the flywheel at TDC.
    Every day when I wake up I reach up in the darkness with my eyes shut and if I cannot feel anything that resembles a wooden lid I know it will be a good day. No lid today.

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    Too many posts! JohnW's Avatar
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    Quote Originally Posted by 59 Floride View Post
    I dunno about that, it would be worth checking, my R12/R10 mongrel Floride has these marks and I'm using a 10s bellhousing, there is a pointer mark on the bellhousing aperture and a deep groove on the flywheel at TDC.
    I didn't know that. I'll dig out my spare R8/10 crankshaft and have a look.
    JohnW

    Renault 4CV 1950 (R1062)
    Renault R8 1965 (R1130)
    Renault Scenic Series II 2005 (wife's)
    Renault Scenic Series II 2006 (daughter's)
    Renault Scenic Series II 2007 (mine)

    CitroŽn CX Pallas 1980 (moved on to new custodian)

    National Co-ordinator, Renault 4CV Register of Australia

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    Fellow Frogger! forzamacchi's Avatar
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    Thanks Guys... I will do some sleuthing with your recommendations! I am installing a pertronix ignition and would like to check the timing when completed. Almost there!

  11. #11
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    I always thought they were on the fan drive pulley and the timing cover. They most definitely are on my Floride S Sierra 688 motor.

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