O rings done, Not the leak though... - Page 2
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Thread: O rings done, Not the leak though...

  1. #16
    LEGACY VENDOR 996TURBO's Avatar
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    Re: O rings done, Not the leak though...

    Audi heater core?
    1997 P38 4.6
    LPG
    SD L322 Rack adapted to P38
    DC5000 EAS Compressor
    Arnott Gen3
    RR-EVOLUTION protection for P38 : front diff guard, rear diff guard, steering guard, fuel tank
    32 inch BF KM2 tires
    Custom Mantec Snorkel
    RPI Sport Exhaust
    H4 Bixenons bulbs

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  3. #17
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Quote Originally Posted by 996TURBO
    Audi heater core?
    http://www.car-stuff.com/audiheatercore.htm

    Just about to go out and give it a try. The outlets are 5/8" instead of the RR 3/4", so I have metal adapters. I got some heater hose that is 5/8" ID and that will (I hope) run into the 3/4" hose that fits the RR.
    Updates soon.....
    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  4. #18
    LEGACY VENDOR 996TURBO's Avatar
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    Re: O rings done, Not the leak though...

    It's dirt cheap. Except the price what's interesting with it? no o- rings?
    1997 P38 4.6
    LPG
    SD L322 Rack adapted to P38
    DC5000 EAS Compressor
    Arnott Gen3
    RR-EVOLUTION protection for P38 : front diff guard, rear diff guard, steering guard, fuel tank
    32 inch BF KM2 tires
    Custom Mantec Snorkel
    RPI Sport Exhaust
    H4 Bixenons bulbs

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  6. #19
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Good news and bad news.....
    The heater core works fits like a glove with minimal modifications....
    First the good news, the mods:
    Inside the heater matrix there is a center rib, this needs to be trimmed with a hacksaw blade. Took @10 minutes after i figured it out. The center rib makes the thickness 1.75", the heater core and the rest of the matrix is 2".
    Adapters are needed to take the 5/8" outlets up to 3/4" hose. I got a 5/8" hose and 2 brass adapters to connect it to the 3/4" hose.
    The grommet that the hoses go through needs to have relief cuts in it to allow for the slightly larger OD of the rubber line.
    Under the hood, the one hose connects to the T at the coolant tank.
    The other will not fit over the fitting on the top of the engine, so I used the old metal coolant lines that went inside the rig (the o ring ones), cut a section off and it worked great as an inline connector! Call me paranoid, but this joint was not serrated, so it got some Permatex black to ensure a seal.
    The way I got access to the heater core, I needed to make another cut in the duct work to get it all back in there.
    If I was to do another, it would be @2hr job, and never have o rings again!!!
    Now for the back news, in all my "jiggling" I broke the copper elbow's seal to the heater core
    I filled it up, dried everything off under the hood and started the rig, only to have coolant on the carpet again!!! Turns out with all my messing around, I broke the solder seal on the new core...
    New one coming in at 0730 in the morning, and the old one is warrantied
    Pics to follow, but that is the gist of it.

    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  7. #20
    SOPHOMORE ROVER NikeCheck246's Avatar
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    Re: O rings done, Not the leak though...

    sounds like a really big pain to avoid a couple of o-rings...don't know if i would be willing to do all that work. And if you ever decide to go back to "stock", are you not up the creek, so to speak?
    Jeremy
    1995 Range Rover 4.0SE - Black Betty
    1995 Land Rover Discovery I - Snow White

  8. #21
    SITE ADMINISTRATOR RRToadHall's Avatar
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    Re: O rings done, Not the leak though...

    I'd have to agree as long as the heater core is not the source of a leak. Then again how often do P38 cores fail. I really can only think of a handful in total on here.
    Common sense is not a gift, it is a punishment.
    Because you have to deal with everyone who doesn’t have it.

  9. #22
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    I dont mind being the test mule, so to speak, this was an experiment after all.....
    I do like the idea of not having any o rings though......just my .02.
    Not to mention having a brand new heater core for $50 (well $38 was my price).
    The heater core leaking was one of those things, and I doubt it has ever happened as much as cracked plastic heater core manifolds etc. If it can happen to Ron, it can happen to anyone IMO.
    Probably a bad solder joint is all. I doubt I could have gotten a new RR one by the next morning if it had happened to one of those.
    If everyone else on here is happy with the stock heater core/o ring arrangement, so be it. For me and at least one other, this mod is worth it to not have any o rings, have a full metal heater core, and save a bloody fortune.
    Guess I wont bother posting the pics up then
    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  10. #23
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Quote Originally Posted by NikeCheck246
    sounds like a really big pain to avoid a couple of o-rings...don't know if i would be willing to do all that work. And if you ever decide to go back to "stock", are you not up the creek, so to speak?
    Could go back to stock as easy as replacing the heater core mate....
    Nothing has been cut or mangled to where the stock core couldn't be used. Hell even the mounting holes and clip are still there
    Only difference is the center rib has been trimmed back, which in no way affects the stock heater core.
    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  11. #24
    SITE ADMINISTRATOR RRToadHall's Avatar
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    Re: O rings done, Not the leak though...

    Quote Originally Posted by leftlanetruckin
    Guess I wont bother posting the pics up then Martin
    BOOOOOOO Ugg, me wantum pickie thingies!
    Common sense is not a gift, it is a punishment.
    Because you have to deal with everyone who doesn’t have it.

  12. #25
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Quote Originally Posted by rrtoadhall
    Quote Originally Posted by leftlanetruckin
    Guess I wont bother posting the pics up then Martin
    BOOOOOOO Ugg, me wantum pickie thingies!
    Sorry Carl
    Here ye go mate...
    The lower hose from the heater core is a shaped heater hose that curves up and around the lower duct work.
    [attachment=3:lsrryjoy]under-dash.jpg[/attachment:lsrryjoy]
    [attachment=2:lsrryjoy]under-dash1.jpg[/attachment:lsrryjoy]
    [attachment=1:lsrryjoy]under-dash2.jpg[/attachment:lsrryjoy]
    [attachment=0:lsrryjoy]under-hood.jpg[/attachment:lsrryjoy]
    Attached Thumbnails Attached Thumbnails O rings done, Not the leak though...-under-dash.jpg   O rings done, Not the leak though...-under-dash1.jpg   O rings done, Not the leak though...-under-dash2.jpg   O rings done, Not the leak though...-under-hood.jpg  
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  13. #26
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Scotty told me, after talking to him, that it sounds harder than what it is....
    I guess that is due to me describing every step.
    The only "mod" that is needed is cutting the center rib inside the heater matrix, which took me @5 minutes
    Version 2 is letting the JB Weld set up now (for some added support to the pipes) and then it will be sliding into place. The parts store said they have never seen that before, so it sounds like I just got a bad part. This one has the pipes plugged, where the other one did not, same brand part...
    Hopefully will be updating this from a toasty and DRY Rangey shortly (need to take the laptop out there to reset the SRS fault anyways)
    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  14. #27
    LEGACY VENDOR Scotty's Avatar
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    Re: O rings done, Not the leak though...

    Looks easier then it sounds
    Martin thanks for leading the way...
    Scotty, head womble ~ "Make Good Use of Bad Rubbish."
    http://www.becmdoctor.com
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    1963 Series II A 88 Under going complete Restoration
    1996 Rangie; Milk Wagon Top Hat Motor completely rebuilt
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  15. #28
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    Job done.
    The missus even took it for @20 minute test drive, and entered the stereo code incorrectly @10 times....
    Quick push of the "BND" button for 4 seconds and the correct code is now entered.
    Up to yet everything is perfect. I will be going to St Louis today though (@250 m round trip), so that will be the true test I guess.
    Heat is perfectly even both sides, coolant temp is staying right at the half way mark, and up to yet life it good.
    I did put some JB Weld on the tubes though to give them some added support, although according to the parts guy this morning, sounds like I just got a bad core.
    No more O rings for me, and an all metal heater core...
    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  16. #29
    FORUM MODERATOR leftlanetruckin's Avatar
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    Re: O rings done, Not the leak though...

    For those interested, performed flawlessly for the 250 miles round trip. I guess it is done and finished with, forever
    O rings no more for this one rig...

    Martin
    '98 P38 HSE, with 385hp/385ft lbs of LSx under the hood. Fully functional HVAC, EAS, etc.
    '03 L322 HSE
    '04 DiscoII - wheeling rig
    '02 P38, '79 924 for the kids.
    Custom fabrication, engine rebuilds and knowledge that comes from experience and not Google, always available for a reasonable cost.
    Reliable BECM repairs, and EAS Parts....www.becmdoctor.com

  17. #30
    FRESHMAN ROVER
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    Re: O rings done, Not the leak though...

    Great mod Martin !

    would you mind doing a step by step article on the main site for the slower of us ?

    I've got a leaking heater core matrix, actually bypassed. In the Caribbean that's not a problem, but if someday I plan to return to Argentina with my Rangie, that needs to be addressed before the trip.

    N.
    2000 Range Rover Vogue, 169K km, coil converted.

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