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I brought the top radiator brace in the shop a couple days ago to visualize how a radiator would sit and discovered two items of interest. The bracket inside the left side of the brace looks like it might have had a relay attached. A
cross the outside top of the brace is a small tube with both ends coming into the engine compartment.
Does anyone know what used to be attached to these?
Thanks
Dave
I took that out this past summer to do AC work. There's definitely a relay there. And the tube is related to cooling. My car is 100% stock. I'll take a pic on my way to work and post it later.
On a Series III 6-cylinder that bracket held the cooling fan relay.
Attached are two pics of my old Series III. The red relay can be seen on the bracket.
The tube is a steam/purge tube as grant says. The left end of the tube is attached, via rubber hose, to the brown header tank. The right end goes to the thermo hoses. You can see the small diameter hoses in the pics if you look closely
Close up pic from this morning showing connections.
Thanks for the close-up Muttony, I was wondering where the header tank was going to fit. Fortunately or unfortunately, I have already mounted the future fan relays, I'll see if I chose wisely.
Originally Posted by Doug
On a Series III 6-cylinder that bracket held the cooling fan relay.
Attached are two pics of my old Series III. The red relay can be seen on the bracket.
The tube is a steam/purge tube as grant says. The left end of the tube is attached, via rubber hose, to the brown header tank. The right end goes to the thermo hoses. You can see the small diameter hoses in the pics if you look closely.
Cheers
DD
Pictures are worth more than a thousand words sometimes as you and Muttony have proven. I can see the connection between the ex-tank and the radiator, but I'm still a little fuzzy on the function and purpose of the "steam/purge" line. Is there another valve/? in the cooling system that is peculiar to the Jag?
Thank you both, for the help.
Dave
but I'm still a little fuzzy on the function and purpose of the "steam/purge" line.
Me too
I think it's needed because the coolant level in the engine is actually above the highest part of the radiator. Something like that. The V12s have similar steam pipes for the same reason.
Is there another valve/? in the cooling system that is peculiar to the Jag?
Well, there's the heater valve. But no other valves that I recall on the XJ6
Time for another episode of Whatzit. After looking at Doug's great looking engine compartment, I noticed that I must not have a windscreen fluid reservoir, at least not one that resembles his. Here's a picture of some of the odds and ends that got thrown in back of my truck when I picked up the car. I recognize the expansion tank and the squarish windscreen fluid reservoir, but I think that is from the 1995 Chevy donor car. The tall white container is a mystery, but the big question is; what is the odd shaped dirty thing in the middle of the picture? It was mounted in the forward part of the left front wheel well, just back from the headlight and this appears to be it's intended location. It has two flex hoses out the top, one is open to atmosphere (overflow?) and the other transitioned to metal tube through the wing wall and there was nothing attached to the other end. I thought it was the windscreen fluid reservoir and that I would have to come up with an in-line pump and some hose and be in business. But now I don't think so, besides, there isn't any way to fill that reservoir.
So, if anyone can help me identify my collection I would appreciate it.
Time for another episode of Whatzit. After looking at Doug's great looking engine compartment, I noticed that I must not have a windscreen fluid reservoir, at least not one that resembles his.
Several variants were used over the years. The tall white bottle looks like what your car should have
The smaller white rectangular bottle is non-Jaguar as you suspect
but the big question is; what is the odd shaped dirty thing in the middle of the picture? It was mounted in the forward part of the left front wheel well, just back from the headlight and this appears to be it's intended location. It has two flex hoses out the top, one is open to atmosphere (overflow?) and the other transitioned to metal tube through the wing wall and there was nothing attached to the other end.
You're on the right track. The ugly dirty one in the middle is the 'atmospheric tank'. often called an 'overflow tank'. As I recall, one of the hoses goes t the nipple at the neck of the header tank.
You're on the right track. The ugly dirty one in the middle is the 'atmospheric tank'. often called an 'overflow tank'. As I recall, one of the hoses goes t the nipple at the neck of the header tank.
Cheers
DD
Ah-hah! Now that you put those two together, I can picture it. The metal tube coming through the wing wall was headed perfectly (sort of) for where the header tank would be. The fluid released at cap pressure+ would have to go somewhere-certainly not on the ground as in the 50's.
There's a chance that none of these devils make it back to their original purpose, but at least I know what that was. Thanks again for your help Doug.
The brown plastic one with a cap and two nipples for hoses was not used in my installation.
Look behind the left out board lamp. I use mine as the "catch can from the filler neck of the radiator. The filler neck is a specie "T in the upper hose.
The plumbing will depend on what you opt for as a radiator. Most lumpers do not use the Jaguar radiator...
Several variants were used over the years. The tall white bottle looks like what your car should have
The smaller white rectangular bottle is non-Jaguar as you suspect
You're on the right track. The ugly dirty one in the middle is the 'atmospheric tank'. often called an 'overflow tank'. As I recall, one of the hoses goes t the nipple at the neck of the header tank.
Cheers
DD
I have to flog this subject just a little bit more, I'm sorry.
I am still trying to get all the outlets of the original header tank sorted. I think it's a nice looking tank and if it was good enough for the purpose before, it should be good enough now.
Here's what I think I know: the large nipple on the bottom of the tank runs to a nipple at the lower radiator outlet to actually fill the radiator; the smaller of the two nipples side-by-side on the top of the tank goes to the "steam pipe" (I still haven't figured out what the significance of this will be to my swap); the nipple in the main filler neck goes to the overflow tank in the wheel well; the second, slightly larger nipple beside the steam pipe nipple is the real mystery. In any pictures I find, it goes towards the radiator, past the washer bottle and then seems to dive down, but I don't know to where.
If you have an idea of the purpose of that small hose, I would really appreciate the help.
I lied Ian, I still don't know where one of them went, but I'm not going to use the stock header tank so I chose this way to close the question as I hadn't gotten any replies.
Hi, I know you decided to not use the original tank but I took some pictures of my parts car that show where they go just in case someone else needs the info. One hose goes low and tees into the lower radiator hose attach point, one goes to the radiator as shown and the last goes to the metal tube crossing over to the right side of the engine which is then connected to the thermostat housing. Hope this helps.
Another Whatzit
