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-   -   XR650L: Spud's Oil Cooler (http://www.advrider.com/forums/showthread.php?t=781962)

Spud Rider 04-14-2012 11:18 PM

XR650L: Spud's Oil Cooler
 
For a while I have been considering different options to install an inexpensive, well-protected oil cooler for my XR650L. I finally decided to experiment with one of the Long/Tru Cool, power steering coolers sold by Baker Precision.

http://www.bakerprecision.com/trucool.htm

Because I wished to keep the oil lines feeding the cooler well protected, and as short as possible, I decided to purchase the 4x4x3/4, small, power steering cooler, which sells for $29.95. After considering a side mount, I finally decided to mount the oil cooler on the bikes downtube, as high as possible, directly behind the front fender.

I constructed a frame for the oil cooler from 3/4x3/4, aluminum angle stock, and 3/4, aluminum bar stock I purchased from Home Depot. I bolted the oil cooler to the angle stock, and completed the coolers frame by bolting two cross pieces of 3/4 bar stock.

I mounted the bottom of the cooler to the frame with two, 1/4x2 bolts, and a short piece of aluminum behind the downtube. I attached the top of the oil cooler to the frame with a plastic zip tie, which I intend to replace with a steel cable tie.

http://i442.photobucket.com/albums/q...Cropped081.jpg

http://i442.photobucket.com/albums/q...mpleted079.jpg

I purchased SAE J1019, transmission oil hose from a local CarQuest store. I ordered five, 90-degree, brass hose barbs from a local hose supply shop. Since I wanted to install a Trail Tech, TTO Temperature Gauge, I also bought some brass fittings from Fastenal. Most of these fittings are also available at many auto supply stores.

I cut the external oil pipe just above the rubber grommet on the frame, and plumbed the oil line into the bottom of my oil cooler as shown in the photographs below. I plumbed the top line from the oil cooler into the line feeding the oil reservoir in the frame. I installed the temperature probe in the oil line between the engine and the oil cooler so I can get a continuous reading of the oil temperature as it exits the engine, before it enters the oil cooler. I secured the oil hoses to the bikes frame using 5/8 loom clamps I bought from Home Depot. I drilled holes in the front fender, and shimmed the fender down with nylon spacers so it would clear the oil cooler.

http://i442.photobucket.com/albums/q...Cooler/002.jpg

http://i442.photobucket.com/albums/q...mpleted064.jpg
http://i442.photobucket.com/albums/q...mpleted065.jpg

http://i442.photobucket.com/albums/q...mpleted069.jpg

http://i442.photobucket.com/albums/q...mpleted070.jpg

http://i442.photobucket.com/albums/q...mpleted072.jpg

http://i442.photobucket.com/albums/q...mpleted075.jpg

http://i442.photobucket.com/albums/q...mpleted076.jpg

http://i442.photobucket.com/albums/q...mpleted080.jpg

http://i442.photobucket.com/albums/q...mpleted085.jpg

http://i442.photobucket.com/albums/q...mpleted086.jpg

http://i442.photobucket.com/albums/q...mpleted087.jpg

http://i442.photobucket.com/albums/q...mpleted088.jpg

http://i442.photobucket.com/albums/q...mpleted094.jpg

http://i442.photobucket.com/albums/q...mpleted095.jpg

After installing my Spud Cooler, I went on a 110-mile ride to test it.

http://i442.photobucket.com/albums/q...Cooler/012.jpg

http://i442.photobucket.com/albums/q...Cooler/013.jpg

http://i442.photobucket.com/albums/q...detemps005.jpg

http://i442.photobucket.com/albums/q...Cooler/025.jpg

http://i442.photobucket.com/albums/q...Cooler/028.jpg

http://i442.photobucket.com/albums/q...Cooler/045.jpg

Im pleased to report the oil cooler works well. I paid approximately $95 to purchase the parts needed to assemble the oil cooler. I spent an additional $50 to plumb the TTO temperature gauge into the oil line. I will continue to report on the effectiveness and durability of this oil cooler as I accumulate more miles riding my XR650L with the oil cooler installed.

Spud :beer

Sourjon 04-15-2012 02:29 AM

:thumb Good job Spud!

John

Grover6 04-15-2012 04:40 AM

Nicely done:clap

tjrockit 04-15-2012 07:21 AM

Excellent work!! :freaky

thebigman 04-15-2012 07:28 AM

Quote:

Originally Posted by Sourjon (Post 18460417)
:thumb Good job Spud!

John

Quote:

Originally Posted by Grover6 (Post 18460678)
Nicely done:clap

Quote:

Originally Posted by tjrockit (Post 18461334)
Excellent work!! :freaky


+ another Spud

Lane_N 04-15-2012 08:13 AM

That looks great Spud! What kind of oil temperatures are you observing now under operating conditions?

elsalvadorklr 04-15-2012 09:12 AM

damn goo job man!

I need to do something like this too...

is that temp reading you took right after shut down after or during the ride and what kind of riding was it?

cheers

XRider 04-15-2012 09:19 AM

Very nice!

Onederer 04-15-2012 10:25 AM

You have designed in too many points for potential oil leaks, rattles and front suspension interference.

The fender is that close to the frame to allow room for the tire under it during full compression, lowering the fender may allow the tire to contact it, which depends on the tire used. No matter what type of material the strap at the top is, the bracket will most likely vibrate against the frame. For what you paid for all the fittings, you could have bought an inexpensive tubing bender and some tubing, requiring only four short pieces of hose and eight clamps to connect it all. You would still need a double flaring kit, but maybe you could borrow one because that would be expensive for a one time use. The way you mounted the cooler, you have blocked 1/3 of the direct air flow.

The first attempt is often not successful. You made your first attempt, but it is not worth praise, keep trying.

techforlife 04-15-2012 11:51 AM

Holy smokes Spud.....did ya buy stock in a hose clamp factory:lol3:lol3:lol3


Kiddin.........looks quite decent.........how are your clearances when the wheel is turned full left/right........and hows the clearance for the fender and wheel at full compression??????????????

If that checks out it looks good to me...i still like Marks cooler though.........but this is definately cheaper.

Hey.i started a rebuild thread if you`re interested...read along,,,i have a few issues so far..but what doesn`t when you gut something completely apart........:lol3:lol3

Good job.....know how about a good stereo install.....i`d love to have tunes on my bike going through the woods:wink:


B

elsalvadorklr 04-15-2012 12:07 PM

Quote:

Originally Posted by Onederer (Post 18462277)
You have designed in too many points for potential oil leaks, rattles and front suspension interference.

The fender is that close to the frame to allow room for the tire under it during full compression, lowering the fender may allow the tire to contact it, which depends on the tire used. No matter what type of material the strap at the top is, the bracket will most likely vibrate against the frame. For what you paid for all the fittings, you could have bought an inexpensive tubing bender and some tubing, requiring only four short pieces of hose and eight clamps to connect it all. You would still need a double flaring kit, but maybe you could borrow one because that would be expensive for a one time use. The way you mounted the cooler, you have blocked 1/3 of the direct air flow.

The first attempt is often not successful. You made your first attempt, but it is not worth praise, keep trying.

damn a little harsh but I understand your point

I have a question for you

has anybody done or know whats prefferable, airflow over the valve cover/topend OR lower oil temps with the introduction of an oil cooler?

I ask this cause I have done the fender mod like spud using BIGGER less count holes and thought a liitle more airflow is better than not,

I do not have an oil cooler installed though but want to

If anybody has proof or data that will back up this question Id appreciate this

I think this cooler is a great project well made and a lot of thought put into it, yes it needs a little trimming on the tubes and such as I too think its a little much but I think your last sentence was uncalled for...

anyways

to all a happy sunday

christian

techforlife 04-15-2012 01:15 PM

Quote:

Originally Posted by elsalvadorklr (Post 18462793)
damn a little harsh but I understand your point

I have a question for you

has anybody done or know whats prefferable, airflow over the valve cover/topend OR lower oil temps with the introduction of an oil cooler?

I ask this cause I have done the fender mod like spud using BIGGER less count holes and thought a liitle more airflow is better than not,

I do not have an oil cooler installed though but want to

If anybody has proof or data that will back up this question Id appreciate this

I think this cooler is a great project well made and a lot of thought put into it, yes it needs a little trimming on the tubes and such as I too think its a little much but I think your last sentence was uncalled for...

anyways

to all a happy sunday

christian

Well.........if you vent the back of the fender you get more airflow to the head....that`s a good thing in hot weather......but if you ride in alot of mud then venting the fender causes it`s own issues of caking mud on the fins/head which is really not good.........

A big fin head would probably be the best bet....fins are out farther,catches more air,,venting the fender probably wouldn`t be needed then...depends on how/where you ride i guess...

I know for me,the oil cooler definately stopped the oil from turning charcoal black in 500 miles...that in itself has to be a good thing..

B

purpledrake 04-15-2012 02:02 PM

Quote:

Originally Posted by therealbigman (Post 18461358)
+ another Spud

Hey Spud,

Once again, you show your resourcefulness, and ability to keep us all in awe. Very good work.

I have two questions.

First, what problems (overheating) did you encounter that led you to add an oil cooler? I am guessing that the high Idaho desert in the summertime causes problems, but what were they?

The second question regards the placement of the new oil cooler, and access to the spark plug. I don't know about you, but I can barely get my hand in there right now--have you tried to remove the plug since you installed the cooler?

PD

elsalvadorklr 04-15-2012 02:07 PM

Quote:

Originally Posted by techforlife (Post 18463136)
Well.........if you vent the back of the fender you get more airflow to the head....that`s a good thing in hot weather......but if you ride in alot of mud then venting the fender causes it`s own issues of caking mud on the fins/head which is really not good.........

A big fin head would probably be the best bet....fins are out farther,catches more air,,venting the fender probably wouldn`t be needed then...depends on how/where you ride i guess...

I know for me,the oil cooler definately stopped the oil from turning charcoal black in 500 miles...that in itself has to be a good thing..

B

yeah I vented my fender taking into account that I almost never ride in mud unless I have to...

If I do for some reason I thought about adding screen mesh to the backside and glue it on

my fender is also shorter in the back than stock, its a modded crf250 fender I think

anyways

I wish I could find a tranny oil cooler like spuds that I could mount where the xr250 and xr400 coolers mount as that would be the best, protection wise and airflow wise

someday someday

again spud congrats hope the cooler lasts and it looks like it works well so far...maybe just add a littel protection to the pipes and hoses so they dont get snagged?

cheers

Spud Rider 04-15-2012 03:14 PM

Thank you for the kind words, John, Grover, TJ, and BigMan. :D

Spud :wave


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