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Add a generic oil cooler?

Discussion in 'XJ Technical Chat' started by SQLGuy, Dec 27, 2019.

  1. SQLGuy

    SQLGuy Well-Known Member

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  2. Timbox

    Timbox Well-Known Member

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    I am sure you can make it work. Just keep it far enough away from the headers and make sure you have side to side clearance. Some auto parts stores in the USA make hoses for hydraulic and oil lines. When I did my BMW oil cooler relocation I looked into what to use and how to get the right length lines. Good luck.
     
  3. SQLGuy

    SQLGuy Well-Known Member

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    Yeah, I can get custom hoses made or modified at the local Whisler Bearing shop... but, if there's a generic oil cooler that's a better direct fit, that would be nice.
     
  4. SQLGuy

    SQLGuy Well-Known Member

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    By the way, anyone know whether the MAC 4-1 headers clear the stock oil filter cover when there's a stock oil cooler on the bike?
     
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    it is not an issue of clearing the filter cover . it is an issue of being able to pull cover through the headers to change the filter.
    my 550 requires me to rotate the filter cover to change the filter as it will not pass through the pipes to remove the filter element.
     
  6. SQLGuy

    SQLGuy Well-Known Member

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    No, it is a question of clearing them, because the oil cooler base makes the filter cover stick out 3/4" or so further.
     
  7. Polock

    Polock Well-Known Member

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    a spin-on adapter fits with mac 4/1. If there was a oil cooler adapter that took a spin-on filter, that would be the ticket.
     
  8. Simmy

    Simmy Well-Known Member

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    yes it does.
    XJ650RJ_.JPG
     
    Franz, Jetfixer and SQLGuy like this.
  9. XJ550H

    XJ550H Well-Known Member Premium Member

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    @Simmy can you get the housing out from between the pipes when you do a filter change?
     
  10. SQLGuy

    SQLGuy Well-Known Member

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    Thanks. I'll may give this amazon setup a go, then. It's much bigger than the OE cooler, but still looks like it would be a comfortable fit.
     
  11. XJ550H

    XJ550H Well-Known Member Premium Member

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    asking because I just don't know . Can you over cool your oil?
     
  12. SQLGuy

    SQLGuy Well-Known Member

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    For small aircraft (also air-cooled), you're supposed to get the oil over 100C, to ensure that any water is boiled out of it. I suppose that too much of an oil cooler could keep the oil from getting that hot in the Winter. In the Summer, though, I think my bike could use some cooling. Still checking into a few other options. There are plenty of generic motorcycle oil coolers on eBay, but no kits that would fit our bikes (as far as the filter adapter).
     
  13. Simmy

    Simmy Well-Known Member

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    that I do not know, I tore this bike down for parts only so never did an oil change
     
  14. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    I have a cooler, and have ridden in winter. Getting the oil hot enough is not a problem at all.
    Your best bet (in terms of time and expense) is to search on Ebay Germany for a used stock cooler and adapter plate. Chacal sells refurbished (and tested) factory oil coolers and adapter plates, but they will cost you a bit (and that's fair given the labor he has into them).
     
  15. Thrasher

    Thrasher Member

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    EB30A85A-0143-42C5-B338-A5DCF65D68F4.jpeg I found a oil cooler from a Hoysoung GT650.
     
  16. XJ550H

    XJ550H Well-Known Member Premium Member

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    how about a photo from the front.
     
  17. SQLGuy

    SQLGuy Well-Known Member

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    Parts so far... Need to see about lines and a filter.
     

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  18. SQLGuy

    SQLGuy Well-Known Member

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    I'm thinking the radiator itself is a bit too small - though it's kind of cute. Ordered a larger one that should be here tomorrow, and will see how that looks.

    Edit: looking at Simmy's shot above, the first radiator I got is pretty close to the size of the stock one. Still... will see how the second one looks in place. A bit bigger is probably better here. Or, alternatively, the second one is coming from Amazon and could be returned. First is 50ml capacity. Second is 125ml. I'm not sure whether that matters that much, though. I would think surface area is the more important consideration.

    As to the diverter - it looks like it should work well once I fab a spacer plate to go between it and the crankcase. It needs about 1/2" of space to make the connectors accessible for the oil lines; and the diameter of the stock mount/cover is about 3 7/8", while the diverter mounting flange is more like 2 1/2". I've ordered a 4" x 1/2" aluminum disc that I plan to machine into a spacer plate.

    The M20 "dental tubes" I got look perfect to connect the nut/bolt of the diverter into the stock port.

    Will try to get more done this weekend... but I think an economical add-on cooler with conversion to spin-on filter is looking pretty doable.
     
    Last edited: Jan 29, 2020
  19. SQLGuy

    SQLGuy Well-Known Member

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    Okay, so here are the two oil cooler candidates. The smaller one seems to be just about the size of the original oil cooler shown on the cover of the Haynes manual. The bigger one will fit, but I wonder if it's overdoing it. Thoughts?

    Smaller is 6 and 1/2 inch by 2 and 1/2 inch for the radiator body itself.

    Bigger is 9 and 1/2 by 4 and 1/2 in and about twice as thick.
     

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  20. Polock

    Polock Well-Known Member

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    ? how much oil pressure would you expect there to be one of these?
     

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