Yamaha Grizzly ATV Forum

We tell it like it is!

Oil cooler question....Grizzly down! :-(

This is a discussion on Oil cooler question....Grizzly down! :-( within the Grizzly Engine & Transmission forums, part of the Grizzly Forums category; Well, servicing the Grizz after a very wet run this weekend, decided I should take the oil cooler off and straighten out the bent fins. ...


Go Back   Yamaha Grizzly ATV Forum > Grizzly Forums > Grizzly Engine & Transmission

Grizzly Engine & Transmission Discuss your Grizzly engine and transmission modifications here.


Reply


Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#1
10-04-2010, 05:47 PM
Oil cooler question....Grizzly down! :-(

Well, servicing the Grizz after a very wet run this weekend, decided I should take the oil cooler off and straighten out the bent fins. It does have the screen over it but some have been smooshed over and bugging me since I got it.

Well, one of the big fittings came off harder than it should have. I'd say the gorilla that the previous owner used to take it to overtightened it and piled up the threads. I cleaned them up as best as I could but it's stripped and won't tighten (the threads on the cooler and in the fitting on the line).

Long weekend coming up, and no Grizz. @$$!$@^^&%!!!!

Mounting aside, can anyone tell me if an aftermarket transmission oil cooler would work in its place?
Or at least be enough to get me mobile for the long weekend?

Help :(
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke

Last edited by gcfishguy; 10-04-2010 at 05:48 PM..
Reply With Quote
gcfishguy is offlineReport Post

Join Date: Mar 2010
Age: 38
Posts: 560
Thanks: 7
Thanked 55 Times in 48 Posts
Rep Power: 57
thomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to all
Location: Manchester Center, VT

Quote  
#2
10-04-2010, 05:51 PM
All you have to do is make sure you have roughly the same amount of surface are between the two cores. basically as long as the new cooler is the same size width, height and thickness with the same spacing between fins then you will be fine.
__________________
98 Yamaha Grizzly 675cc 4x4
Coop 45 Mods 2&3
27" ITP 589's
TKO Custom Jetting
EHS Racing Air Box Lid With K&N Filter
Supertrapp Mud Slinger Exhaust
Odyssey PC545 Battery
More new factory parts than I care to remember.
But, Green Mountain Grizzly Lives.
Reply With Quote
thomasakehoe is offlineReport Post

Join Date: Apr 2010
Age: 55
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
AndersEklund is on a distinguished road
Location: Sweden

Quote  
#3
10-05-2010, 09:18 AM
Quote:
Originally Posted by thomasakehoe View Post
All you have to do is make sure you have roughly the same amount of surface are between the two cores. basically as long as the new cooler is the same size width, height and thickness with the same spacing between fins then you will be fine.

Or could it be possible to make new threads with helicoil replacement threads?
Reply With Quote
AndersEklund is offlineReport Post

ChrisH's Avatar

Join Date: Mar 2010
Age: 32
Posts: 286
Thanks: 45
Thanked 100 Times in 59 Posts
Rep Power: 57
ChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud ofChrisH has much to be proud of
Location: Texas (Victoria area)

Quote  
#4
10-05-2010, 11:36 AM
A new or aftermarket oil cooler out to work just fine. You'll just have to make sure the fittings match up and figure out some kind of mounting method. If the new cooler is bigger, be sure to check the oil livel and adjust it accordingly.
__________________
2009 Grizzly 550
28" Radial Outlaws & Machined Sheave + 14 gram weights
Reply With Quote
ChrisH is offlineReport Post

Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#5
10-05-2010, 01:24 PM
Well, the fitting is brass and the threaded outlet on the cooler is aluminum. The bottom half of the threads are peeled off the cooler and the aluminum is packed into the threads on the fitting. It also looks like the threads on the fitting are buggered up too.

the fittings are huge (take a 1 1/8 wrench) so finding a bottoming tap to clean the threads in the fitting would be next to impossible.

Really not sure what the need of the huge fittings is, since the actual hole in the fitting that oil flows through is only about 7/16".

I can find anything used locally, or on ebay. New is close to $500 at cheap cycle parts so likely way more at the dealer.

I found the cooler and lines off a 2000 that a bike shop is parting out on the other side of the country...still waiting on a price for the parts and shipping from them though.

Since I need one line, I might as well get both....and maybe in the meantime i can go to the local UHaul place and pick up an aftermarket Transmission oil cooler. <Something like this> I'm pretty sure they're close to the right size, but maybe longer or higher....I'll see if I can make it fit. If I can find one and secure it in there, I should be able to cut the fittings off and attach it with clamps.

They're bigger so might give me more cooling than stock. I can't see it causing it to run too cold though...From what I read the 600's have no issues making lots of heat...

Nobody happens to know someone parting out a 98-2000 600 that might have an oil cooler? Shipping to eastern Canada will be expensive likely, but nowhere close to buying one new.

If anyone knows someone, please PM me their email address or something..

Thanks!
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke

Last edited by gcfishguy; 10-05-2010 at 01:28 PM..
Reply With Quote
gcfishguy is offlineReport Post

Join Date: Mar 2010
Age: 38
Posts: 560
Thanks: 7
Thanked 55 Times in 48 Posts
Rep Power: 57
thomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to all
Location: Manchester Center, VT

Quote  
#6
10-05-2010, 03:26 PM
Check summit racing, I have been thinking of installing a Derale unit on my 675 they have a nice bar and plate models too which are way more durable than the fin type cores, you can also get them with an included and mounted fan that will simplify things, the hardest part is just going to get lines made up for it to fit, but most large auto parts stores now have services to make custom hydraulic assemblies.
__________________
98 Yamaha Grizzly 675cc 4x4
Coop 45 Mods 2&3
27" ITP 589's
TKO Custom Jetting
EHS Racing Air Box Lid With K&N Filter
Supertrapp Mud Slinger Exhaust
Odyssey PC545 Battery
More new factory parts than I care to remember.
But, Green Mountain Grizzly Lives.
Reply With Quote
thomasakehoe is offlineReport Post

Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#7
10-05-2010, 08:14 PM
Well, thanks for the info everyone.

Came down to two choices, either pay $180 plus plus plus and get a used one shipped here, or check into an aftermarket transmission cooler.
The cooler and extra hose I needed came to $80. Bought it after work.
It's about the same width as the factory one, and about twice as tall.

I cut the fittings off the stock lines and connected the new line with a 3/8 brass barbed union. Since the old cooler was toast (fitting torn right out of it), I cleared all the fins out of it and just left a bit in the corners where the attachments for the new cooler slide through.
I re-installed the factory cooler and laid the new one on top of it with the rubber pads between them, like you would mount it in front of a radiator in its intended application.

I have the front corner apart waiting on a tie rod end, so I couldn't go for a spin but I let it idle quite a while with the idle bumped up and there's no leaks or anything.

It doesn't actually look too bad, and after I get a wire mesh guard built, it won't be noticeable at all. not sure how it'll cool, but given that there's twice the surface area exposed to fresh air, I hope I won't have any issues.

Anyone happen to know if you can shoot the motor with one of those hand held thermometers and check and see if the oil cooler fan is coming on at the right temperature. (Not complaining, but I only remember it coming on once or twice...the horror stories I hear about hot grizzlies makes me think it should be on more...?)

If this idea turns out to be less than successful I'll get that used one shipped to me I guess, or look into a more 'high performance' aftermarket cooler..
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke

Last edited by gcfishguy; 10-05-2010 at 08:14 PM..
Reply With Quote
gcfishguy is offlineReport Post

Join Date: Mar 2010
Age: 38
Posts: 560
Thanks: 7
Thanked 55 Times in 48 Posts
Rep Power: 57
thomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to allthomasakehoe is a name known to all
Location: Manchester Center, VT

Quote  
#8
10-05-2010, 09:20 PM
you can definitely use a non contact thermometer to see what temps, I'd spot check the line where it leaves the engine case and also where it's coming out of the cooler to see the diference. Also if you want you can always get a probe type temp sensor that are designed to just slide through the core of the cooler and you can wire it to a small temp gauge to monitor temps as you ride. If you have the ambition and a multi meter with the alligator test leads you can also remove your thermoswitch and hook it up to you meter set on continuity and then hang the thermoswitch in a pan of water on the stove and slowly heat it up have a regular candy thermometer etc.... in the pan and when the temp gets to where your switch should tell the fan to come on you should see continuity and below that you shouldn't. Hope this helps.
__________________
98 Yamaha Grizzly 675cc 4x4
Coop 45 Mods 2&3
27" ITP 589's
TKO Custom Jetting
EHS Racing Air Box Lid With K&N Filter
Supertrapp Mud Slinger Exhaust
Odyssey PC545 Battery
More new factory parts than I care to remember.
But, Green Mountain Grizzly Lives.
Reply With Quote
thomasakehoe is offlineReport Post
RIP Mike Mayho

Mad Mike's Avatar

Join Date: Dec 2006
Age: 54
Posts: 3,725
Thanks: 79
Thanked 402 Times in 326 Posts
Rep Power: 103
Mad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond reputeMad Mike has a reputation beyond repute
Location: Michigan

Quote  
#9
10-06-2010, 06:35 AM
most aftermarket oil coolers have a check valve to prevent the oil from bleeding back into the crank case and over filling it. make sure you have it flowing the right way if yours has a check valve.
__________________
Signature edited by GEARSLAYER in respect for the great late Mike Mayho known to us as Mad Mike. Mike's no longer with us people.

Mike road a mean...
07 770 Green Grizzly: EHS/Barker Port/Polish w/1mm o/s valves,Trinity 734 BBK, Barker +4mm Stroker Crank, Stage 2 Raptor Hot Cam, Barker true dual exhaust, PC5 w/Auto Tune, EHS Airbox Setup, 2mm o/s Throttle Body by KDS, 25.5" Pit Bull Growlers, Owner of Mike`s Powerhouse Mods #2 and #3 (formerly coop45 mods).

GOD BLESS MIKE'S SOUL. HE WAS A GREAT FRIEND AND ASSET TO THIS SITE. SEE YOU WHEN I GET THERE BUDDY! JAMEY (AKA GEARSLAYER).
Reply With Quote
Mad Mike is offlineReport Post

Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#10
10-06-2010, 06:47 AM
I blew through this one in both directions...Just like playing a trumpet...except I can't play the trumpet. Worked great, but sounded a bit flat. :p

No check valve at all..maybe because it's a transmission cooler?
Actually, it's this one.

I mounted it with the inlet/outlet pointing up.
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke
Reply With Quote
gcfishguy is offlineReport Post

Grizzly_Greenhorn's Avatar

Join Date: Sep 2009
Age: 34
Posts: 27
Thanks: 5
Thanked 0 Times in 0 Posts
Rep Power: 0
Grizzly_Greenhorn is on a distinguished road
Location: Ontario, Canada

Quote  
#11
10-26-2010, 05:52 PM
I have a 98 600 and my oil cooler fins are all messed up, and it seems to run real hot. I would like to try something similar to you.
How does your new oil cooler perform?
Can you take some pic of how you connected the lines?
__________________
98 Grizzly 600
13,000 kms
Uni Filter
Dynojet
Raptor Muffler
27" Mudlites (Front)
27" Gators (Rear)
1.5" lift
1.5" spacers
Reply With Quote
Grizzly_Greenhorn is offlineReport Post

Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#12
10-26-2010, 06:15 PM
Sorry....just saw this now.... I'm in the middle of changing my one-way bearing so I'll snap a few pics of the cooler.

I've had it out twice since I put the cooler on, but both days were cool out. Once was a run with two people on it, and the next was a 50km run along, mostly old railbed so we were cruising along at a good clip. So far, it's working fine....the fan (which only kicked on a couple times) hasn't run at all, and no overheating or anything. The new cooler is about the same width as stock, but it's thinner. But, it has close to double the surface area.

I cut the factory couplers off as close as possible, to leave me as much of the old hose as possible. I connected the hose supplied with the cooler to the factory hoses with 3/8" brass barbed airline fittings.
I routed the factory hoses up along the frame in front of the engine and went right up close to the front plastic and then back down towards the cooler. If you do that, I'd suggest being really careful trimming the length of the hoses since you don't want too much or too little, putting stress on the inlet and outlet of the cooler, since they're not as rugged as the factory one.

I mounted the cooler with the inlet and outlet at the top...it fit better at the bottom, since I wanted the bottom edge of the cooler a bit lower then the edge of the factory one....if I put the inlet/outlet at the bottom they would be under stress since the hoses would have to do a 90 degree bend to run back between the front diff and skidplate.

I pulled the old core off and cut out all the cooling fins except for a little patch in each corner where the mounting 'zips' for the new cooler would pass through. This is a long process, using a wood chisel to cut through them and then a carpet knife to shave them off where they're soldered along the tubes, but I wanted as much airflow as possible. I suppose I could have cut the guts right out of the old cooler, but I didn't. Up to you, I guess.

To physically mount the new cooler, it's mounted in pretty much the same way that it would mount to an automotive radiator. Just place it where you want it, put the 4 rubber insulators in the corners so the old cooler doesn't rub against the old one, and run the 4 'zip' fasteners through the old one from the back, through the new one, then push on the 4 retainers and cut off the excess 'zip' that's sticking out.

Once my buddy has a free evening in his shop I'll trailer it over and we'll make a grate out of expanded metal. In the meantime I have to remember to be careful anywhere that I might get a stick up into it.

Pics will follow shortly.
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke
Reply With Quote
gcfishguy is offlineReport Post

Join Date: Jul 2010
Posts: 375
Thanks: 14
Thanked 54 Times in 51 Posts
Rep Power: 52
DEWFPO is a name known to allDEWFPO is a name known to allDEWFPO is a name known to allDEWFPO is a name known to allDEWFPO is a name known to allDEWFPO is a name known to all
Location: High in the Rockies

Quote  
#13
10-26-2010, 06:19 PM
Another cheaper option : Harbor Freight and others sell an inexpensive cooler fin straightening tool. Acts like a nylon comb to straighten the fins.

DEWFPO
__________________
2009, 550, EPS, Metallic Black, UNI Air Filter, Warn 2500XT, Moose receiver hitch, Moose handguards, Works Connection Tach., Warn ProVantage 60" front mounted plow, Warn Power Pivot
Reply With Quote
DEWFPO is offlineReport Post

Join Date: Aug 2010
Age: 45
Posts: 306
Thanks: 8
Thanked 87 Times in 59 Posts
Rep Power: 52
gcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to beholdgcfishguy is a splendid one to behold
Location: Moncton, New Brunswick, Canada

Quote  
#14
10-26-2010, 06:46 PM
Sorry, in the middle of another job and didn't even notice that your fins were just bent. If that's all that's wrong, go with what DEWFPO said.
They're a lot tougher than your run of the mill radiator fins, so go with a steel comb if you can find one.
I'd imagine Princess Auto would have them. (PA = the Canadian version of Harbour Freight)

Anyway, pictures here

One of my next projects will be to get rid of that 500 pound checkerplate monstroity that the previous owner blocked the airflow with.

He geared up the winch on a plate that fits into a receiver on the front or back. Handy, yes, but the huge 1/4" thick plate is overkill. Not to mention blocking....ALL of the airflow to the cooler.

It didn't overheat on hot days this summer, and winter's almost here so that will get done....sometime..
__________________
"In dog beers, I've only had one!"

2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke
Reply With Quote
gcfishguy is offlineReport Post
Reply

Lower Navigation
Go Back   Yamaha Grizzly ATV Forum > Grizzly Forums > Grizzly Engine & Transmission



Search tags for this page

1998 grizzly aftermarket oil cooler

,
2000 grizzly 600 oil cooler
,

2000 yamaha grizzly 600 oil cooler

,

after market oil cooler for 98 yamaha grizzly 600

,
aftermarket atv oil coolers
,

grizzly 350 2010 fan motor for oil cooler fuse

,

how to clean oil cooler on 98 yamaha grizzly 600

,

putting a switch of oil cooler 600 grizzly

,

when should the oil fan come on on a grizzly 600

,

where is the oil temp sensor on a 1998 grizzly 600 atv 4x4

,
where is the oil temperature sensor for a 2000 yamaha grizzley 600?
,
yamaha grizzly 350 cooling fan
,

yamaha grizzly 600 oil cooler

,

yamaha grizzly 600 oil cooler fan

,

yamahagrizzly600oilcooler

Click on a term to search our sites for related topics.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
f'ed up my oil cooler tyler'sgrizz Grizzly Engine & Transmission 7 07-30-2012 09:54 PM
oil cooler F N Nuts Grizzly Engine & Transmission 16 06-02-2010 07:14 AM
Grizzly 350 Oil Cooler ? Ago Grizzly Engine & Transmission 2 01-19-2010 07:12 AM
grizzly 660 cooler rack !!!!!!!!!!! tjt603 Grizzly Accessories 2 09-16-2008 07:58 PM
Oil Cooler? BigDaddyTX Grizzly Engine & Transmission 1 01-08-2008 01:54 PM

All times are GMT -5. The time now is 12:02 PM. Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc. Website by Jamey Garrant (GEARSLAYER).