Discovery 2: Build and assembly of 4.6L V8 - Page 5





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  1. #81
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    Default Re: Build and assembly of 4.6L V8

    This wear is where you will lose performance.

    Here's a link to my "go to" V8 site.

    They even taught me how to do the shimming of the rocker shafts, something that isn't in my manual.

    When I rebuild mine, I was surprised with the amount of extra power I gained and my engine was only rebuild because I had a itch.

    There is a lot of useful information on this site.

    http://www.v8engines.com/engine-4.htm#worncams
    '07 Land Rover Defender 110 TDI 300 Kalahari (Meisiekind˛)

    84' Land Rover Defender 110 V8 4-speed Hardtop (Meisiekind) Sold after 12 years of fun and hard work




    The only thing needed for evil to triumph is for a good man to do nothing.

  2. #82
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by jfh View Post
    This wear is where you will lose performance.

    Here's a link to my "go to" V8 site.

    They even taught me how to do the shimming of the rocker shafts, something that isn't in my manual.

    When I rebuild mine, I was surprised with the amount of extra power I gained and my engine was only rebuild because I had a itch.

    There is a lot of useful information on this site.

    http://www.v8engines.com/engine-4.htm#worncams
    Thanks for this, now to look a bit closer at myblown motor and check a few things, but it seems to be pointing towards a previous poor rebuild
    Alan


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  3. #83
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    Default Re: Build and assembly of 4.6L V8

    Also have a look at the head gasket part.

    If your engine has 3 rows of bolts, follow their instructions.
    '07 Land Rover Defender 110 TDI 300 Kalahari (Meisiekind˛)

    84' Land Rover Defender 110 V8 4-speed Hardtop (Meisiekind) Sold after 12 years of fun and hard work




    The only thing needed for evil to triumph is for a good man to do nothing.

  4. #84
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    Default Re: Build and assembly of 4.6L V8

    As far as I recall, the 3rd row was done away with on the SD1 already, so that shouldn't be an issue.
    If they are fitted, the Rover P6 guys say just to nip them up so they don't fall out the holes or omit them entirely.
    Cheers,
    John

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  5. #85
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    Default Re: Build and assembly of 4.6L V8

    Jip.

    I call it LR's dirty 20 year secret.
    '07 Land Rover Defender 110 TDI 300 Kalahari (Meisiekind˛)

    84' Land Rover Defender 110 V8 4-speed Hardtop (Meisiekind) Sold after 12 years of fun and hard work




    The only thing needed for evil to triumph is for a good man to do nothing.

  6. #86
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    Default Re: Build and assembly of 4.6L V8

    Man oh man... Cannot wait to see the end result, and to hear it...!
    2011 Freelander 2 SD4 HSE AT.
    1999 Discovery II V8 XS AT.
    2016 Campmaster Compact 100 trailer.

    ----------------

  7. #87
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    Default Re: Build and assembly of 4.6L V8

    Spent the afternoon getting some elbow grease under the finger nails cleaning valve covers and rocker parts.
    I am not happy with the rocker shafts looking at the scouring marks and even though the rocker arms themselves look good i am not happy to reuse the arms on new shafts so it looks like will be doing complete new rocker assemblies.

    To answer some previous questions, I am installing new lifters, new CAM and new push rods.
    I will also be going through the tedious process of checking tappet pre-load.

    Old motor will be out tomorrow.

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    Before and after scrubbing.
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  8. #88
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by Jay_B View Post
    I am not happy with the rocker shafts looking at the scouring marks and even though the rocker arms themselves look good i am not happy to reuse the arms on new shafts so it looks like will be doing complete new rocker assemblies.
    I wonder what an exercise like this would run to, cost wise, in SA?
    https://classicroverforum.net/index....t-issue.40032/
    Cheers,
    John

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  9. #89
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by JohnnoK View Post
    I wonder what an exercise like this would run to, cost wise, in SA?
    https://classicroverforum.net/index....t-issue.40032/
    Thank you for the link, i was actually thinking last night why there is not bushes pressed into the rocker arms.

    Reading that thread confirms something i was told as well regarding aftermarket shafts and rocker arms, that does leave me in a tough spot though.

    There would be a few places around that could machine new shafts according to spec and then possibly reuse old arms and pedastills with bronze bushes pressed in?

    Unfortunately everyone is still closed for the festive season and time right now to get that done is not on my side.
    Going to give LR a call later and see what they have available in the warehouse.

  10. #90
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    Default Re: Build and assembly of 4.6L V8

    You can use mine
    Alan


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  11. #91
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    Default Re: Build and assembly of 4.6L V8

    Pitty one cannot install roller rockers.
    It is not what you buy its what you build.

  12. #92
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    Default Re: Build and assembly of 4.6L V8

    I reached out to someone i met a few weeks ago while collecting my heads, he is an engine builder and machinist, meeting with him next week to look at machining new shafts and then installing brass bushes onto the rocker arms.

    Phoned LR but all those parts are discontinued.

  13. #93
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by All -in -one View Post
    You can use mine
    Hey Alan, are yours still in good nick?
    It then leaves you without anything though.

  14. #94
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by grips View Post
    Pitty one cannot install roller rockers.
    One can!
    http://store.yellaterra.com.au/ta-pe...oller-rockers/
    Cheers,
    John

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  15. #95
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    Default Re: Build and assembly of 4.6L V8

    If you have the time and inclination, Volvo steel rockers from the B18 engine can be made to to work, but they are 1.5 ratio, while the RV8 is 1.6, so they would require offset bushes to be made up to fit the Rover shafts and deliver the correct lift unless you use a 1.5 ratio profiled cam. They need bushing anyway to fit the shafts.

    The GM V6 3.8l engines should also work, as well as Oldsmobile 215 rockers with rebushing for size.

    Problem is, all these are scarce items due to age.
    Cheers,
    John

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  16. #96
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by JohnnoK View Post
    Thanks
    It is not what you buy its what you build.

  17. #97
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by customrv View Post
    Hey Pieter,

    Did they produce the stud with the longer threads? I remember the last info it was too expensive to make us a batch
    I only built one motor with those short studs and drilling the first 5mm out to drop the stud down, but 4 years later one of those studs did pull out!

    EbenH.
    For thos interested see below the comparison of the correct ARP studs that arrived this morning compared to the ones supplied from Rimmer

    Correct bolts on the left and the older model on the right

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  18. #98
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    Default Re: Build and assembly of 4.6L V8

    Another day of elbow grease cleaning parts off the old motor, if I see anymore silicone where it shouldnt be I am going to throw this motor like the hulk across the yard.

    Honest question, am i missing something with the use of gasket maker over the use of dedicated gasket sets, for example on the front cover? My problem is the silicone has gone to places it shouldnt; (Eg: physically in and on the timing chain)

    Anyway finished the day with fitting the first head.
    The studs just look oh so pretty and are far nicer to use than head bolts, also using an Elring head gasket set rather than the Brit part one that came in the set.

    Have not torqued the nuts down yet, my spline socket seems to have found legs

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  19. #99
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    Default Re: Build and assembly of 4.6L V8

    I use Locktite silicone on all non specialized gaskets, but I first clean all metal surfaces with benzin,then I "rub" both sides with the silicon.

    It's less than a quarter of a multimeter.
    Looks neat and doesn't peel out.
    '07 Land Rover Defender 110 TDI 300 Kalahari (Meisiekind˛)

    84' Land Rover Defender 110 V8 4-speed Hardtop (Meisiekind) Sold after 12 years of fun and hard work




    The only thing needed for evil to triumph is for a good man to do nothing.

  20. #100
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    Default Re: Build and assembly of 4.6L V8

    Your engine looks Awesome.

    On silicone I hate it. Once rebuild a Ford 3.0l Essex V6. Opening it up I found it dropped a main bearing. Piece of silicone stuck in the oil port.
    Last edited by grips; 2020/01/01 at 06:36 PM.
    It is not what you buy its what you build.

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