Discovery 2: Build and assembly of 4.6L V8 - Page 12





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  1. #221
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    Default Re: Build and assembly of 4.6L V8

    Exhaust bandage wrap will help, but you can't use that at the coast as the headers rust off. Luckily you're in Gauteng.

    Another alternative is more insulation/heat proofing on the tunnel.

    Lastly, don't discount the heat generated by the transmission. Are you running the ZF or the R380 or what?
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  2. #222
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by jelo View Post
    Exhaust bandage wrap will help, but you can't use that at the coast as the headers rust off. Luckily you're in Gauteng.

    Another alternative is more insulation/heat proofing on the tunnel.

    Lastly, don't discount the heat generated by the transmission. Are you running the ZF or the R380 or what?
    I have the R380, new oil done less than 10k km ago on both gearbox and TC.
    Insulation on the tunnel i have thought about but would need to drop the gearbox out to do it neatly and properly.

    I have also though of the bandage type wrap but also no real info on how effective it is.

  3. #223
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by Jay_B View Post
    I have also though of the bandage type wrap but also no real info on how effective it is.
    Basically better than nothing.

    The other alternative is aluminium heat shields but again, access to the tunnel.......

    You running a gearbox oil cooler? https://www.ashcroft-transmissions.c...ooler-kit.html
    Jakes Louw
    2012 Jeep Sahara Unlimited 3.6 V6
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  4. #224
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by jelo View Post
    Basically better than nothing.

    The other alternative is aluminium heat shields but again, access to the tunnel.......

    You running a gearbox oil cooler? https://www.ashcroft-transmissions.c...ooler-kit.html
    Yes have the standard oil cooler that came fitted from LR

  5. #225
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    Default Re: Build and assembly of 4.6L V8

    Also look at one of these for the transfer box
















    LT230 High Capacity Sump - Ashcroft Transmissions


  6. #226
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by tripodontour View Post
    Also look at one of these for the transfer box

    Have seen that before but done think that is the issue causing all my heat.
    Read yesterday about an insulating foam around the heater matrix in front of the center console so i am going to have a look at that first.















    LT230 High Capacity Sump - Ashcroft Transmissions


  7. #227
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    Default Re: Build and assembly of 4.6L V8

    My R380 which has a oil cooler not the std loop pipe but a 8 row cooler, the oil stat opens around 80deg so oil in R380 can get upto 90deg, I also have the extended sump on my LT and oil in there can get up to 90 -110 on long trips,
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  8. #228
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by clivemd View Post
    My R380 which has a oil cooler not the std loop pipe but a 8 row cooler, the oil stat opens around 80deg so oil in R380 can get upto 90deg, I also have the extended sump on my LT and oil in there can get up to 90 -110 on long trips,
    Wow! That's hot. I've never seen those temperatures.

    Mine has standard bottom plate and no cooler.
    I have only seen mid to high 80's °C.
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  9. #229
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by jfh View Post
    Wow! That's hot. I've never seen those temperatures.

    Mine has standard bottom plate and no cooler.
    I have only seen mid to high 80's °C.
    was on a drive for 14hrs up into Moz
    1995 300TDi Defender with VGT Turbo (stolen by my son now )
    2002 Defender with LS1 MS3 ECU, 4L80e, LT230 1.222, Lockers and HD CW&P, 35" with 4" Lift
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  10. #230
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by clivemd View Post
    was on a drive for 14hrs up into Moz
    The 300Tdi or LS1?
    Sounds like you were in a rush 🤪
    '07 Land Rover Defender 110 TDI 300 Kalahari (Meisiekindē)
    '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.

  11. #231
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by Jay_B View Post
    Yes have the standard oil cooler that came fitted from LR
    The loop pipe or a PROPER radiator cooler?
    Jakes Louw
    2012 Jeep Sahara Unlimited 3.6 V6
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  12. #232
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by jelo View Post
    The loop pipe or a PROPER radiator cooler?
    proper radiator cooler

  13. #233
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    Default Re: Build and assembly of 4.6L V8

    Some more updates and insights...

    we did another weekend away to Matamba this past weekend and came home via a back road from Vaalwater through the greater Marakele reserve and over Rankins pass into Warmbaths.

    The previous questions I had about the center console getting hot was not an issue this weekend. We had the aircon re-gassed on Thursday and ran it full time on Friday and coming home yesterday. Coming through Hammanskraal area yesterday outside temps were saying 35 but still center console stayed cool to the touch.
    I did however notice the engine temps on the VDO gauge were running slightly warmer than i would normally see yesterday on teh trip home.

    This is the second extended trip since putting the 4.6 in and with a roof top tent and stocked up for a weekend away with groceries etc etc I am averaging around 6.1km/L travelling at 100km/h (measured pump to pump). The nice part however is cruising at 100km/h requires a very light foot and to overtake is no issue, very quickly gets up to 110-120km/h with no hesitating.

    I do sadly have an intermittent misfire that is getting progressively worse - it is a problem that i had on the previous motor so no doubt its electrical or possibly fuel related. When we got home I was fiddling with HT leads and they seemed very loose on the plugs, like there was some play on the connection so i will look at that further.

    Otherwise, this engine just runs so smooth and comfortable, the vehicle is really a pleasure to drive and extremely satisfying up to this point with all the work gone into it.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  14. #234
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    Default Re: Build and assembly of 4.6L V8

    Jay

    Is that a "baby" roofrack you have in front of the RTT

    looks good though

  15. #235
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by RossJ View Post
    Jay

    Is that a "baby" roofrack you have in front of the RTT

    looks good though
    No it was a roof rack built for the TREK expedition Disco 2s that we picked up secondhand.
    The front of the roof rack follows the contours of the roof

    Click image for larger version. 

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  16. #236
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    Default Re: Build and assembly of 4.6L V8

    Hi

    What revs are you running when driving @ 100kmh?

    Thanks

  17. #237
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    Default Re: Build and assembly of 4.6L V8

    Matamba is one of my favorite camping spots in SA!
    n' profeet word nie in sy eie land geken nie!

  18. #238
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by tripodontour View Post
    Hi

    What revs are you running when driving @ 100kmh?

    Thanks
    Hi,

    I am not 100% certain. Will be sure to make a note of it next time i take the car out.
    Im thinking around 2500 give or take.

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  20. #239
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    Default Re: Build and assembly of 4.6L V8

    Quote Originally Posted by Pottie1 View Post
    Matamba is one of my favorite camping spots in SA!
    Yup for us as well, but i think Booyznkraal has taken top spot for us now.
    Little closer to home and the drive into the river camp adds a sense of excitement and anticipation.

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