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P38A Project P38

Discussion in 'Range Rover' started by monkfish24, Jan 20, 2019.

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  1. siddeley

    siddeley Member

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    Hi.. whoops....as above....bolts in sequence to 20 Nm...then in sequence turn 90 deg. Hope not too much damage done.
    Kind regards
     
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  2. monkfish24

    monkfish24 Well-Known Member

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    Possibly, they aren't expensive so it's always worth checking a new one in.
     
  3. Henry_b

    Henry_b Well-Known Member

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    Yep if it were me. i'd throw a new HG in + some new bolts :D

    I find Victor Reinz gaskets to be the best, but personal preference and all that ;):p:D
     
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  4. monkfish24

    monkfish24 Well-Known Member

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    Yeah, I did the first head fine, did the second today and wasn't obviously paying full attention.
     
  5. monkfish24

    monkfish24 Well-Known Member

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    Should be ok, it's not like I used a 3ft breaker bar to tighten it o_O:eek::D
     
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  6. mozz smith

    mozz smith Well-Known Member

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    Hi Monkfish , your thread is excellent all step by step , its great that you done this it gives much hope to other P38 owners , following from start really pleased for you the way its all going well done mate ,,continue with the gusto you show & you Will be rewarded when you get to drive your rangie once again !!!!! watching this thread is a pleasure , also entertaining in some parts ,that's the landyzone humour ….once again well done . regards Mozz
     
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  7. monkfish24

    monkfish24 Well-Known Member

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    Mozz, thank you! I love playing with Land Rovers and enjoy the general banter on here. I also have always been the class clown so glad to here I'm coming across as entertaining :) I love keeping old cheap cars going, they aren't bad cars, they just don't have the love shown to them they deserve.

    I'm very much looking forward to getting her going again!
     
  8. ukadamwest

    ukadamwest Well-Known Member

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    and the P38 too ?
     
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  9. monkfish24

    monkfish24 Well-Known Member

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    Managed to pick up a nanocom and eas kicker today from OXO. May well come in handy when I turn the electrics back on.

    Hopefully the engine will be back in life tomorrow!

    The heads have been refaced, how vital is it that the rockers are reshimmed?

    Cleaned a load of gunk and rubbish out of the intake manifold, the engine is coming together nicely.

    The exhaust looks beautiful wrapped rather than heat shields. Looking forward to turning the key tomorrow!
     
  10. Henry_b

    Henry_b Well-Known Member

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    It's quite important to check tappet pre-load as there have been so many variants of the Rover engine components, you can't really "assume" anything, So if you want to be sure of how your engine will end up. don't forget this important issue. Tappet pre-load is the distance between the pushrod seat in the lifter and the circlip, when the lifter is on the heel of the cam and the valve is closed. Not setting the lifter pre-load, will cause premature wear, noisy valve gear, and it's possible the engine will fall on its face ;) Or if your lucky "initial complete loss of compression as the valve will not be able to close fully,

    The following information assumes that the following components are in good condition - rockers, pushrods, valve guides and valve stems. a clearance of .020" to a maximum of 0.60" must exist between the spring loaded pushrod seat in the top of the lifter, and the underside of the retaining circlip. This check should be made with the valve gear fully assembled, and the lifter empty of oil, positioned on the lowest point, on the back of the camshaft. The simplest way to measure the gap is by using round wire. Use a piece .020" for the low clearance check, and a piece of .060" for the high clearance check. Check all 16 lifters in turn.

    There are various ways to adjust the pre-load on the Rover V8. normally a decrease off pre load is required and this is achieved by using a "rocker pedestal shim kit" if the opposite applies the it would be achieved by machining the rocker pedestals.
     
    Last edited: Feb 6, 2019
  11. monkfish24

    monkfish24 Well-Known Member

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    Ok, so your basically pushing the wire under the bottom of the push rod?

    I've read on RAVE what it recommends and for some reason I'm just struggling to picture it :confused:
     
  12. Henry_b

    Henry_b Well-Known Member

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    Just borrowed this pic and it perfectly shows were to stick ya thingy right inbetween the piston and circlip :eek::eek::D

    [​IMG]

    Stick ya .020 and .060 "low and high clearance" in the spot where the pick is on the picture.

    ideally the cam should be 104-108 Degrees off it's lobe. :)
     
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  13. monkfish24

    monkfish24 Well-Known Member

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    Ah ha! Thank you, that makes more sense......

    Slight problem, I only read this part after fitting the intake manifold...... AAARGH

    Should stick to inline engines! :D

    Soooooo, my next question, what's the probability that it's ok?

    I have done loads of valve adjustments on diesels and never really thought of it til tonight.... Doh!
     
  14. RangeRoller dt

    RangeRoller dt Well-Known Member

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    Manifolds turned out real nice. You've done a lot for the few weeks you've had it fairplay, true inspiration
     
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  15. Henry_b

    Henry_b Well-Known Member

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    Can't really give you a concrete 100% yes it's fine! ;)
    ;) :D

    If in doubt take the mani off and have a quick look.. :D
     
    Last edited: Feb 6, 2019
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  16. monkfish24

    monkfish24 Well-Known Member

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    It's ALIVE!!!!!

    Started up with a few little hiccups, the engine disable kept cutting in, the HEVAC LCD is acting a little odd. I had a small issue with a badly seated injector, the clip hadn't fully engaged and obviously popped off when I primed the engine.

    But, I idled it up to warm and it ran really nicely, kept an eye on the top of the radiator and could feel the heat build up then settle down as the thermostat opened.

    However, the top hose went rock hard, I thought I had bled it properly. I did feel in the footwell and felt some dampness, I would have expected it to push coolant out, not draw air in.....

    However, very happy, I will leave it idling tomorrow and see if it overheats. I do have new ones rings to fit on the heater matrix so will sort that tomorrow.
     
  17. Henry_b

    Henry_b Well-Known Member

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    Good news about her running.
    Did you re-use the squished HG?
     
  18. monkfish24

    monkfish24 Well-Known Member

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    Yeah, under advice from my mechanic friend, he didn't think it would be too much of an issue. There isn't any CO2 in the coolant and the exhaust doesn't have the sweet smell it did before.
     
  19. Henry_b

    Henry_b Well-Known Member

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    The top hose shouldn't be concrete hard.

    Headgasket considering it was squished way past what its designed too that's a possibility..
    .

    Could also be an airlock in the system..

    Take the cap off the header and rapidly squeeze and release the Top hose this should expel any excess air.

    When removing the cap when hot does it try to launch coolant out?
     
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  20. Henry_b

    Henry_b Well-Known Member

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    Oh and when bleeding her make sure the heater is on HOT and Fans on.

    This'll get coolant around the Heater Matrix, eliminating any locks in there too,.
     
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