Radiator Drain Mod
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Recovery Vehicle
Joined: Mar 2016
Posts: 856
Likes: 154
Radiator Drain Mod
This is a small deal but thought I would share.
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
Pro Wrench
Joined: Jan 2011
Posts: 1,869
Likes: 44
From: Philly
This is a small deal but thought I would share.
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
Mudding
Joined: Mar 2015
Posts: 123
Likes: 3
I think you might have the answer for my problem 
My disco's radiator is leaking and I am trying to order a new one from eBay but there are 3models as I see. For manual transmission, automatic trans with sensor hole and automatic transmission without sensor hole. I dont know if mine has a sensor or not lol
Would you help me to figure it out if you know how?
Sorry for hijacking the topic ://
My disco's radiator is leaking and I am trying to order a new one from eBay but there are 3models as I see. For manual transmission, automatic trans with sensor hole and automatic transmission without sensor hole. I dont know if mine has a sensor or not lol
Would you help me to figure it out if you know how?
Sorry for hijacking the topic ://
Pro Wrench
Joined: Jan 2011
Posts: 1,869
Likes: 44
From: Philly
I think you might have the answer for my problem
My disco's radiator is leaking and I am trying to order a new one from eBay but there are 3models as I see. For manual transmission, automatic trans with sensor hole and automatic transmission without sensor hole. I dont know if mine has a sensor or not lol
Would you help me to figure it out if you know how?
Sorry for hijacking the topic ://
My disco's radiator is leaking and I am trying to order a new one from eBay but there are 3models as I see. For manual transmission, automatic trans with sensor hole and automatic transmission without sensor hole. I dont know if mine has a sensor or not lol
Would you help me to figure it out if you know how?
Sorry for hijacking the topic ://
Camel Trophy
Joined: Nov 2012
Posts: 3,717
Likes: 248
From: Longview, Texas
This is a small deal but thought I would share.
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
My neighbor has a mechanic shop and needed some apple trees cut down so he performed the in-line thermo mod for me while I cut down his trees. He said the radiator drain plug was odd and had a rubberized seal. Was worried it might leak. I was puzzled because the rave manual shows no drain on the radiator. I called the dealer in Omaha to get a new plug. They said there was no plug but did say that British models had a sensor of some kind in that hole.
Long story short, a 20mm x 1.5 thread pitch drain petcock with a 90 degree bend will work. I will put a short hose on it to hang down past the tie rods. I found several on-line but will try to find one local first.
Anybody else ever run into this?
But your idea of a drain hose is a good one. Draining the radiator from the other locations is super messy. That setup just won't work for SAI trucks because they'll have a sensor in the hole that you're using.
Mudding
Joined: Mar 2015
Posts: 123
Likes: 3
They are easily identifiable. Check out this video to help identify if your engine is equipped w/ SAI.
Identifying Secondary Air Engine on Discovery II and Range Rover P38 Models - YouTube
Identifying Secondary Air Engine on Discovery II and Range Rover P38 Models - YouTube
Camel Trophy
Joined: Nov 2012
Posts: 3,717
Likes: 248
From: Longview, Texas
Right; you can buy either. I have bought a couple of the cheaper (newer) ones and they both had plugs pre-installed.
Mudding
Joined: Mar 2015
Posts: 123
Likes: 3
Thank you!!! She will be running again after this repair in a week, probably for a short while again. Lol
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