My SPAL Fan Install...LOTS of pics

[CTC B4Z]

Just bought my fan tonight. Where do you get that temperature dipstick???


and where in the burbs are ya?

[CTC B4Z]

How big of a cooler can we upgrade before we cause problems in oil flow??? Any idea how much oil pressure these things have?

[NacsMXer]

Originally posted by CTC B4Z
Just bought my fan tonight. Where do you get that temperature dipstick???


and where in the burbs are ya?

Not sure on the oil cooler size/oil pressure question.

You can buy the dipstick here: http://www.xrsonly.com/content/index...mart&Itemid=70

They ream you on the shipping for this little thing, but it is a very worthwhile mod for our quads. I marked mine with colored Sharpie's to indicate the 400EX's temperature ranges. Makes it easy to glance down at it quickly to see if it's in the safe zone.

[clemsonteg]

Where do you find what the normal operating temp is for this bike, I didn't seem to find it in the service manual.

[CTC B4Z]

I had seen that in the previous pages, just wasnt sure where to get it from. On their site, it says its for s 650 or something... confusing...


Someone really needs to find out the flow rating of the oil pump. I have several trans coolers off of trucks I could fit on this thing... lol

[big_poppa49]

$40 for a dang dip stick!!

Ya'll quit worrying about your temperature and just go riding!!

this aint no NHRA Dragster or anything....

[Muzzgit]

I know it's not the same bike, but the local quad mechanic put a temp guage in the water line of his daughters yammy 450 and was amazed to see how hot the thing got. The bike has no engine mods!

The other day he said "I'd rather not know" just ride the bloody thing and shut it off when you're not moving.

Personally I think a fan on the oil cooler is a good idea.
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Aren't there "seven enemies of oil" or something?

heat - water - detergent - carbon - salt - time - air

Or something like that!

[CTC B4Z]

When I get my SPAL in ($35) on eBay, yes it is a puller, I'm going to custom mount my fluid cooler off a truck on the quad, with the fan ofcourse. ITs about 3 times the size of stock cooler

[NacsMXer]

Originally posted by clemsonteg
Where do you find what the normal operating temp is for this bike, I didn't seem to find it in the service manual.

It's not in the manual anywhere unfortunately. I did some post digging and found out what temperatures people were seeing (those who have the temp dipstick or trail tech vapor). I was then able to establish some general operating ranges for the 400EX as far as "not so hot", "really hot" and "DANGER zone" lol. The numbers aren't set in stone, but are a good reference.

Originally posted by CTC B4Z
When I get my SPAL in ($35) on eBay, yes it is a puller, I'm going to custom mount my fluid cooler off a truck on the quad, with the fan ofcourse. ITs about 3 times the size of stock cooler

Sweet, let us know how it goes and feel free to share some pics of the install if you like

[CTC B4Z]

Most definately... the cooler I am not goin to spend much time on. I Would take the lines to a hydraulic shop and get nice crimps and such, but I dont think there is much oil pressure, so rubber trans lines and clamps is how I will get the cooler to connect to engine... I will pick up a spare set of oil lines sometime and get it done right, but not now its riding season and I dont want her to be down for more than a few days at a time...

I got the cooler off a Explorer at a junkyard... They have AWESOME factory trans coolers.... Econoline vans too...