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Thread: Holden 308 H

  1. #166
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    My cam bearings and gasket set has arrived from Australia, so really pleased about that.

    The cam bearings are ACL bearings (0.002), part number 5C5146. I was hoping that the bearings will be numbered 1-5 but they are not. There are teh following numbers on them.
    Please can someone advise what these numbers mean;
    5146
    5149
    5148
    5147
    5140 (this is the smallest which will fit at number 5 tunnel.

    I really do not want to get them mixed up when installing

  2. #167
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    Not an expert but I'd like to think the lower numerical number equates to smaller size.

  3. #168
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    Shoot an email to ACL and ask them if no one here helps.

  4. #169
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    5146 is No1
    5147 2
    5148 3
    5149 4
    5140 5

  5. #170
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    Quote Originally Posted by AED View Post
    5146 is No1
    5147 2
    5148 3
    5149 4
    5140 5
    Perfect thanks

  6. #171
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    Quote Originally Posted by RedTaxi View Post
    As said all good mods. But they are not really about getting the pressure up. The hole at #4 cam bearing feeds the drivers side lifter gallery and right there is where the crank starves for oil.
    The pump mods sticky is how you get decent hot idle oil pressure along with the right bearing clearances. The .002" undersize cam bearings help a lot with this but it's worth noting my last build and the current one required a mix of std and undersize bearings to get it right. A couple have had no clearance at all.
    I now understand this point, the 0.002 cam bearings did not work on my block, I had to source a set of standard size bearings. What a bummer that turned out to be.

  7. #172
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    Hey guys, motor has been assembled and put into my UTE. I plan to fire her up tomorrow.

    What are your preferred method for first startup, crank the motor with the plugs out to try build up some oil pressure, or just start her up.

    I have stuffed some vaseline in the oil pump, filled the oil filter with as much oil as i possibly could.

    I am using a monograde oil for the first startup.

    Would appreciate any advice on this please.

  8. #173
    Senior Member JaseQ314's Avatar
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    With a 308 you're not easily going to build oil pressure on the starter without rubbing off all of your cam lube before you get any.

    I'd suggest making sure everything is set up so that it hopefully fires straight up and all being well should get oil pressure fairly soon after that, then get your revs to around 2500 or so to run the cam in if it's a new one (sorry, I can't remember if you were using the old one without back reading).
    Last edited by JaseQ314; 12-12-2020 at 08:48 PM.

  9. #174
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    Remove pressure sender and use shop vac and suitable size hose to pull oil though pump. Then fire it up.

  10. #175
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    The Jason has described is the way I do it. Last time I tried to get oil pressure by cranking I got nothing, I was getting ready to pull the pump to check and when I removed the line for the mechanical gauge I was using for start up a little clean oil came out. I re-connected the gauge and started the engine and oil pressure came up instantly. I've come to the conclusion that cranking speeds while moving oil isn't enough to build pressure, especially in a nice tight fresh engine.

  11. #176
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    Yeh the best I've seen on cranking is a bit of a flicker on the gauge.

  12. #177
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    Quote Originally Posted by COM081 View Post
    Remove pressure sender and use shop vac and suitable size hose to pull oil though pump. Then fire it up.
    or remove sender and fill giant oil syringe with oil and then pressure force oil into pump, filter and pickup tube
    (and air out)

    works every time for me... instant oil pressure on startup ( I eyeball the dizzy rotor for timing to get it started too)


    best $40 I have spent in a long time

    376a-oil-syringe.jpg
    Last edited by Smitty2; 14-12-2020 at 11:08 AM.
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  13. #178
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    Quote Originally Posted by COM081 View Post
    Remove pressure sender and use shop vac and suitable size hose to pull oil though pump. Then fire it up.
    This works.

    Use a heap of clear tube so you can see the oil flow and don't suck oil into the vacuum. Duct tape is fine to seal the tube to the vac.

  14. #179
    Senior Member JaseQ314's Avatar
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    Quote Originally Posted by Smitty2 View Post
    or remove sender and fill giant oil syringe with oil and then pressure force oil into pump, filter and pickup tube
    (and air out)

    works every time for me... instant oil pressure on startup ( I eyeball the dizzy rotor for timing to get it started too)


    best $40 I have spent in a long time

    376a-oil-syringe.jpg
    The Mick Dundee, now that's a syringe.

  15. #180
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by JaseQ314 View Post
    The Mick Dundee, now that's a syringe.
    oh yeah....
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