JohnGoodenough
XS650 Addict
Thanks Pete!
Good advice!
Is the oil pump the same one as offered by Heiden?
Mikes don't seem to sell them..
Good advice!
Is the oil pump the same one as offered by Heiden?
Mikes don't seem to sell them..
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External oil cooler
- Thread starter JohnGoodenough
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- engine
pamcopete
Ride.Enjoy.Life is Simple
GoodEnough,
Yes, the one on Heidens web site looks like the one that MikesXS used to carry.
Yes, the one on Heidens web site looks like the one that MikesXS used to carry.
JohnGoodenough
XS650 Addict
Thanks Pete!
Ordered, along with the sump filter kit and dipstick thermo guage!
Ordered, along with the sump filter kit and dipstick thermo guage!
CDNTX650
XS650 Guru
that is a nice piece, lemme know how it works out. might just get one for myself.
JohnGoodenough
XS650 Addict
Will do cdntx!
Yes, Thanks for the pics. With the tube and o-ring it looks like it will seal the oil passages so oil is pumped out and can return. A nice looking piece.
I used several types of oil filters with my adaptation but I can still use the stock filter in the side cover.
On the Micron size Harley sells both a 10 and a 5 micron filter for the Twin cam engines.
I ended up using both stock filters and plumbing in an oil cooler. The cooler Mike's sells is very close to the same size as the one I ran. It dropped the oil temps by about 50 degrees and the head and cylinder temps dropped by about the same amount.
I used several types of oil filters with my adaptation but I can still use the stock filter in the side cover.
On the Micron size Harley sells both a 10 and a 5 micron filter for the Twin cam engines.
I ended up using both stock filters and plumbing in an oil cooler. The cooler Mike's sells is very close to the same size as the one I ran. It dropped the oil temps by about 50 degrees and the head and cylinder temps dropped by about the same amount.
JohnGoodenough
XS650 Addict
Thanks Leo!
Roman G
XS650 New Member
Enjoyed reading this discussion . Just bought my first street bike , a 1981 XS650 special , learning a lot from your posts , did the first oil change and found the usual debris in the filters and on the magnetic drain plugs . I'm going to do the Mikes XS oil filter mod for now . I was wondering how much it would help things if I upgraded the magnets on the drain plugs with the new super magnets that are available .
Welcome to the forum, Roman G.
I found the magnets on the early '70s weaker than some later '75- up drainplugs. Rare earth magnets in the drainplugs sounds interesting. How do you plan to incorporate those?
I found the magnets on the early '70s weaker than some later '75- up drainplugs. Rare earth magnets in the drainplugs sounds interesting. How do you plan to incorporate those?
A followup thread on the high-volume oil pump and oil pressures:
http://www.xs650.com/threads/hp-oil-pump-from-mikes.40991/
http://www.xs650.com/threads/hp-oil-pump-from-mikes.40991/
Hi xjwmx,
it's been 20 years since I worked on nuclear reactor design but trust me, the pump tech ain't transferable.
And the XS650 engine don't need no more oil pressure, what it could use is more oil flow.
And of course, better filtration.
pamcopete
Ride.Enjoy.Life is Simple
Here is an oil cooler from MikesXS mounted on my '81/H.
Drilled and tapped one of the oil passages on the front of the cover and another on the oil filter cover for the return line. Added an oil pressure gage line just for good measure:
Blocked the internal passage with a 3/8" rod held in place with a set screw:
The cooler needs to be mounted low so it will not interfere with air flow to the head or cylinders.
Drilled and tapped one of the oil passages on the front of the cover and another on the oil filter cover for the return line. Added an oil pressure gage line just for good measure:
Blocked the internal passage with a 3/8" rod held in place with a set screw:
The cooler needs to be mounted low so it will not interfere with air flow to the head or cylinders.
I worked in Nuclear power plants for 18 years, and actually the basic fluid pumping principle in a reactor is similar to the XS650.
There are differences though. The reactor heat transfer pumps are really big, using a 12,000 HP motor each, and there are 4 in each reactor. Each pump also has a very heavy flywheel attached, to allow pumping to continue for a short period, when a power loss occurs. Of course the fluid is different too, being oil in the XS650 and heavy water (D2O) in a reactor.
They are both quite similar in that, flow is of the up most importance, not pressure.
Roman G
XS650 New Member
I thought the magnets were weak on the '81 also. After doing a little searching on the internet it seems that the rare earth neodymium magnetic plugs are out there for the common 14mm plug size but not the odd 30mm the xs650 motors have. I did find 30m x 1.5 pitch billet aluminum oil filler caps that might work . Wasn't sure of the thread size and pitch the xs650 has. Will check that at the next oil change. I did find an interesting design on amazon that I will try to upload pictures of . Its a 3 pc. cleanable design where the magnet is inside a non magnetic plug with a steel cap to hold it in place . The magnet sticks to the steel cap and when you remove the cap the magnet comes with it and the metal debris on the other end of the plug falls off .
Roman G
XS650 New Member
Sorry , I guess I hit the button too many times .
Doesn't look too hard to make but I'm sure there's a patent involved . I also found a company named Gold Plug that uses the neodymium magnets and will do custom orders so I put in a quote request and told them in the request about the xs650 sickness that is out there and they would probably do well with selling xs650 plugs.
Doesn't look too hard to make but I'm sure there's a patent involved . I also found a company named Gold Plug that uses the neodymium magnets and will do custom orders so I put in a quote request and told them in the request about the xs650 sickness that is out there and they would probably do well with selling xs650 plugs.
If anyone is really concerned about steel particles and aluminum particles circulating in the oil, the best thing you can do is remove the crap strainer that is on the right side of the engine, and replace it with a real paper filter. The stock strainer is of very little value.
A magnet will not capture aluminum particles but a paper filter will.
A magnet will not capture aluminum particles but a paper filter will.
