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  1. #1
    casual poster ChirpE's Avatar
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    Default Rear main / Engine Storage

    Hi guys, quick question.
    Recently pulled my 308 out to do some other engine bay work. Whilst out ive had the rear main seal re-done as it was leaking. The engine will be remaining out of the car and not running for probably another 6 months. Should I fill the oil back up in the engine or leave it out to prevent another rear main leak while it sits??

  2. #2
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    Fill er up I say. Mainly to hopefully stop the oil all draining out of the pickup and pump and giving pressure problems on re-start. Rear main wont leak while sitting. The full oil level is way below the seal.

  3. #3
    Part of the furniture 46Crab's Avatar
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    I concur with RedTaxi.

    Without starting an argument on the best product to use in the oil pump, Iíd pull the oil pump while the engine is out and itís easy to access and squirt some sticky lube (engine assembly lube will work, petroleum jelly or blah blah blah product) in the gears and then re-fit to the engine to ensure on fire up the pump has good suction and gets oil pressure quickly.

    Iíve seen many Holden V8ís that have been stored struggle to get oil pressure because the pump canít get suction.

  4. #4
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    Loosen the rockers off as well.


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  5. #5
    Do you ever leave? EH179's Avatar
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    Quote Originally Posted by Castiron355 View Post
    Loosen the rockers off as well.


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    Very good idea!

  6. #6
    casual poster hell34's Avatar
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    No need too

  7. #7
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    Quote Originally Posted by hell34 View Post
    No need too
    No need to what?


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  8. #8
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    I back the rockers off too when storing an engine..and pull the plugs, turn it over etc.. i thought that was the done thing..

  9. #9
    casual poster hell34's Avatar
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    Quote Originally Posted by 427 View Post
    I back the rockers off too when storing an engine..and pull the plugs, turn it over etc.. i thought that was the done thing..
    I need to back the rockers of it makes no difference To anything

  10. #10
    Part of the furniture 46Crab's Avatar
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    Quote Originally Posted by hell34 View Post
    I need to back the rockers of it makes no difference To anything
    Backing off the rockers does nothing for the rear main seal in an engine going into storage, but the valve springs that would be compressed will thank you for itÖ.

  11. #11
    Do you ever leave? EH179's Avatar
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    Valve springs lose tension, when compressed over a period of time.

    Seen LT1 spring stay compressed after rocker was removed, years ago.

  12. #12
    Part of the furniture 46Crab's Avatar
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    Quote Originally Posted by EH179 View Post
    Valve springs lose tension, when compressed over a period of time.

    Seen LT1 spring stay compressed after rocker was removed, years ago.
    Spot on

  13. #13
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    I have never backed a rocker off on any of my race engines over many, many years. I have also never hurt a valve spring from doing this. I had a talk with with a quality valve spring manufacturer years ago and was told heat and float is what kills valve springs. If keeping them compressed hurt them, there would be a lot of hurt engines on the road.

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    Quote Originally Posted by AED View Post
    I have never backed a rocker off on any of my race engines over many, many years. I have also never hurt a valve spring from doing this. I had a talk with with a quality valve spring manufacturer years ago and was told heat and float is what kills valve springs. If keeping them compressed hurt them, there would be a lot of hurt engines on the road.
    Interesting, thanks for the info.

  15. #15
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    Quote Originally Posted by AED View Post
    I have never backed a rocker off on any of my race engines over many, many years. I have also never hurt a valve spring from doing this. I had a talk with with a quality valve spring manufacturer years ago and was told heat and float is what kills valve springs. If keeping them compressed hurt them, there would be a lot of hurt engines on the road.
    Agree 100%, makes no difference, just turn it over once and a while.

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