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Old 07-22-2018, 09:24 AM
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Does anyone know the diameter and length of the rubber hose needed to replace the plastic pipe that goes from the top of the radiator to the expansion tank on a D2? And the one from the throttle body to the expansion tank, also as well the one from the block to throttle body?
I want to replace all of them with coolant rubber hoses. This is for my Discovery II V8.
Thanks,
Dave
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Old 07-22-2018, 11:43 AM
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Should be 7/16".
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Old 07-22-2018, 06:54 PM
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Quote:
Originally Posted by jymmiejamz View Post
Should be 7/16".
Is that for all of them or just for the one from radiator to expansion tank?
Thanks,
Dave
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D3/LR3 SE 05 Bonatti Grey NYC truck
D3/LR3 SE 05 Bonatti Grey LA truck
D2 1999 SD7 White (Just got it, shipping to PR)
Past LR's
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1991 RRC 'The Turtle' (sold @ 195K)
1988 RRC (sold)
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Old 07-22-2018, 09:43 PM
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They are all the same. If you want to be 100% sure on the size, just take a piece of one to the auto parts store with you, but I'm pretty sure they are 7/16"
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Old 07-22-2018, 10:22 PM
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Quote:
Originally Posted by SafariDave View Post
Does anyone know the diameter and length of the rubber hose needed to replace the plastic pipe that goes from the top of the radiator to the expansion tank on a D2? And the one from the throttle body to the expansion tank, also as well the one from the block to throttle body?
I want to replace all of them with coolant rubber hoses. This is for my Discovery II V8.
Thanks,
Dave
I used 5/16" for both. Never had an over heat problem.
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Old 07-22-2018, 11:11 PM
special ed special ed is offline
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Its 5/16ths hose. Both the radiator to expansion tank and the hoses to and from throttle body heater matrix.
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Old 07-23-2018, 09:14 AM
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Thank you!
Dave
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D3/LR3 SE 05 Bonatti Grey NYC truck
D3/LR3 SE 05 Bonatti Grey LA truck
D2 1999 SD7 White (Just got it, shipping to PR)
Past LR's
1999 Disco II SD 200K+ (Sold)
1991 RRC 'The Turtle' (sold @ 195K)
1988 RRC (sold)
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Old 07-27-2018, 07:08 AM
JohnnoK JohnnoK is offline
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My plastic ones got all brittle and were breaking up when I touched them, so I got a few meters of flexible line and a handful of jubilee clamps and replaced the whole lot.

A friend who is a bit of an Anorak got the vapours when he saw the new pipes and threatened to have me excommunicated....go figure.
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Old 07-27-2018, 08:11 PM
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5/16" - Just buy 12' and cut to length as required.
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Old 08-01-2018, 05:02 PM
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Quote:
Originally Posted by JohnnoK View Post
A friend who is a bit of an Anorak got the vapours when he saw the new pipes and threatened to have me excommunicated....go figure.
Right, because every village out in the bush has an auto parts store loaded with obscure BritPart replacements. Your friend clearly hasn't: A. Owned a Disco, and B. Had to bodge together a repair miles from nowhere. LOL

I have one of those pipes sitting in its little blue bag in the top bin of my roll away, never to be used. Bought it, then realized how shite the original pipe was, and how ridiculous the routing was (and what a nightmare it would be to try to fix it out on the trail). Realized repairs would need to be made using tubing anyway, so I went ahead and swapped out all the rigid plastic piping for high quality hose with durable, re-usable clamps.
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