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ViragoTechForum.com Tech Articles [ KB ] Oil Cooler Install Direction , Cover Mod Diagram

#1:  [ KB ] Oil Cooler Install Direction , Cover Mod Diagram Author: Matthew Post Posted: Sat Aug 04, 2007 11:26 pm

Category: Fix It / Mods
Type: KB Modification

Article Name: Oil Cooler Install Direction , Cover Mod Diagram
Author: Matthew
Description: Oil Cooler Install Direction , Cover Mod Diagram

check out the two new pic n pdf file instructions.

The drill pattern is nice to mod a stock cover.

http://viragotech.com/bikes/TerryHerr/TerryHerr.html

#2:  Re: [ KB ] Oil Cooler Install Direction , Cover Mod Diagram Author: uncleromo Post Posted: Mon Aug 06, 2007 11:12 am

Critical to proper function of this modification is the "derale flow adapter" seen in Derale 2.pdf. The Yamaha oil filter cover has a passage that runs at right angle from the center passage of the cover to the side case that feeds the head (cams rockers etc.). That passage must be blocked with the "derale flow adapter" or some other means or you provide a parallel path for oil flow, probably lose most of your oil presure and likely burn up your heads. Terry Herr initially did it by sleeving the inside of the center passage blocking the hole. I did it by tapping the right angle hole and epoxing in a 5/16 coarse x 1/4 allen set screw where it meets the center passage. Either method blocks the original oil passage and forces oil through the cooler before it goes the heads. This is vital. With out doing this I believe you are asking for major problems. I doubt the derale flow adapter is any longer available.

UR

#3:  Re: [ KB ] Oil Cooler Install Direction , Cover Mod Diagram Author: her838a2 Post Posted: Mon Aug 06, 2007 5:25 pm

I have modified and installed at least a dozen of these oil coolers. I am currently taping the existing oil passage with the same npt tap that I use for the two new holes in the outside of the cover. I buy pipe plugs from NAPA 1/8 npt plug. I like the pipe tread because its tapered. I install the slotted plug with a screwdriver and I use blue tread lock. I have logged thousands of miles with the current design with no problems. I've tried a lockhart cooler with a built in thermostat, but can't find a suitable place for the cooler. The Virago just doesn't have enough room. The inline thermostat from lockhart BP 180 does a good job.

The existing oil passage in the cover must be plugged. This method is more effective than the oil flow adapter that derale supplied years ago. The orignal adapter had a O ring that would be subject to failure and lose at each oil change. Permanently plugging the hole below the return tap is a permanent solution

TH

#4:   Author: Matthew Post Posted: Wed Aug 08, 2007 1:09 am

I do wonder how much umph the stock system has, how big a cooler it can handle n such.

Could use a big can for a cooler plus add an extra quart or so of oil, like they do on custom HDs.

#5:  Re: [ KB ] Oil Cooler Install Direction , Cover Mod Diagram Author: her838a2 Post Posted: Wed Aug 08, 2007 12:46 pm

Lockhart maintains that the 500 series coolers will not affect oil pressure. The 500 series coolers are available on ebay. Old kaw man has been putting oil coolers on the old Kawis for years. He uses a cooler sold by JC whitney http://www.oldkawman.com/. My Virago is stock so lockhart 500 cooler works great. Kaw man says his cooler is more effecient. Wonder what lockhart would say?

I have no idea how big you can go without adversly affecting oil pressure. Or where you would put it.

#6:   Author: sbrogden Post Posted: Thu Aug 09, 2007 1:09 pm

Gosh, fellas. My XS850 has an oil cooler from the factory. And a kick starter. And an oil pressure light. And 3 cylinders. And a starter that don't sound like hell.

:-)

#7:   Author: Dadscool Post Posted: Mon Oct 08, 2007 1:56 pm

Is there a way that I can get ahold of a modified adapter? Would rather to this than take the chance of distroying the cover I have.

DC

#8:   Author: grazingazer Post Posted: Mon Oct 08, 2007 2:05 pm

sbrogden wrote (View Post):
Gosh, fellas. My XS850 has an oil cooler from the factory. And a kick starter. And an oil pressure light. And 3 cylinders. And a starter that don't sound like hell.

:-)
do i detect a note of non-constructive sarcasm here?.. remember he who laughs last laughs best...

#9:   Author: sbrogden Post Posted: Mon Oct 08, 2007 2:08 pm

I've got an oil filter cover from my XV750 with one ear busted off that you can have if you want to try the modification risk free.

#10:   Author: Dadscool Post Posted: Mon Oct 08, 2007 2:21 pm

Thankyou for the offer, would like to pickup one that is modified then I know that it will work. Has anyone tried the harley tube coolers? They sell them on ebay.
DC

#11:   Author: sbrogden Post Posted: Mon Oct 08, 2007 2:21 pm

[/quote]do i detect a note of non-constructive sarcasm here?.. remember he who laughs last laughs best...
[/quote]

As long as we're all laughin' !

#12:   Author: Dadscool Post Posted: Mon Oct 08, 2007 2:38 pm

No sarcasm intended, just don't want to modify somthing and find out I made a huge boboo when my engine goes up in smoke....LOL....understand my point?.....have a good one.

DC

#13:   Author: sbrogden Post Posted: Mon Oct 08, 2007 2:45 pm

Dadscool - my comment was directed at grazingazer, the I bothced the quick quote thingy so it's hard to tell that's who I was responding to.

I wish you well.

#14:   Author: turbodog Post Posted: Wed Oct 24, 2007 10:00 pm

Is there any chance that you could post a oicture or diagram? Rare as the covers are, I really want to getthis right the first time!

Thanks!

her838a2 wrote (View Post):
I have modified and installed at least a dozen of these oil coolers. I am currently taping the existing oil passage with the same npt tap that I use for the two new holes in the outside of the cover. I buy pipe plugs from NAPA 1/8 npt plug. I like the pipe tread because its tapered. I install the slotted plug with a screwdriver and I use blue tread lock. I have logged thousands of miles with the current design with no problems. I've tried a lockhart cooler with a built in thermostat, but can't find a suitable place for the cooler. The Virago just doesn't have enough room. The inline thermostat from lockhart BP 180 does a good job.

The existing oil passage in the cover must be plugged. This method is more effective than the oil flow adapter that derale supplied years ago. The orignal adapter had a O ring that would be subject to failure and lose at each oil change. Permanently plugging the hole below the return tap is a permanent solution

TH

#15:   Author: turbodog Post Posted: Wed Oct 24, 2007 10:02 pm

sorry, just saw the linky. Doh!
ViragoTechForum.com Tech Articles [ KB ] Oil Cooler Install Direction , Cover Mod Diagram


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