Oil Temperature... has anyone monitored it - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 10 (permalink) Old 09-05-2006, 12:00 AM Thread Starter
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Oil Temperature... has anyone monitored it

Has anyone monitored the oil temperature in hot weather? Coolant temp is one thing, but oil temp is much higher.

The stator failure issues I have come across makes me think an oil cooler would be appropriate for use in southern climates.

I have come across an oil filter adapter and recommended cooler that will work for the bike.

Trying to decide if I really need it.

Thanks
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post #2 of 10 (permalink) Old 09-05-2006, 12:26 AM
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Quote:
Originally Posted by itlnstln13
I have come across an oil filter adapter and recommended cooler that will work for the bike.
That's what I mentioned when Hizzo was thinking about a custom, coolant jacketed stator cover.
I wouldn't think it would/could hurt anything.
Do you have a link to the item you mention?


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post #3 of 10 (permalink) Old 09-05-2006, 01:49 AM
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There was a company called Overland Custom over here in the UK several years ago that marketed an oil cooler kit for the VN750. Basically, it consisted of an adapter plate that went between the filter & the engine with pipes leading to a cooler which mounted in front of the radiator. Unfortunately Overland went broke a few years ago but I do remember that the kits they sold were made in the USA so they may still be available over there somewhere. Can definitely see the benefits of having one in a hot climate, doesn't matter so much here in England. We get the odd day when it may go over 90'F in the summer but it doesn't generally get that hot. Think I have just been lucky with my stator, my bike has covered nearly 77,000 miles now & it's still on the original one. (Touch wood!) I think that keeping the oil clean & topped up to the correct level has a lot to do with preventing the problem occuring. Also pays to keep all the electrical connections clean on anything to do with the charging system so that resistance doesn't build up & fry things. By-products of combustion in the oil are very acidic which can attack the insulation on the stator windings. My other bike (a Suzuki GS1000G) burnt out it's stator a couple years back & the guys at the machine shop which rewound it said that they had rewound several VN750 stators which showed signs of the insulation being eaten away (possible by dirty oil) rather than simply being burned by the heat or as a result of some other charging system fault such as regulator/rectifier problems.

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post #4 of 10 (permalink) Old 09-05-2006, 04:09 PM Thread Starter
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Oil cooler adapter and coolers

Found this info on Ebay when searching for oil cooler solution.

http://cgi.ebay.com/ebaymotors/Honda...mZ220007341390

$49 + $12 shipping.

Also has oil coolers available for an additional $39 + shipping.

Undecided on which cooler to buy as several exist out there including OEM kawasaki ones on Ebay.
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post #5 of 10 (permalink) Old 09-05-2006, 05:43 PM
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Cool! So where do you get the radiator part?

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post #6 of 10 (permalink) Old 09-06-2006, 03:50 AM
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Quote:
Originally Posted by cegodsey
Cool! So where do you get the radiator part?
Same guy has them HERE.
I was wanting to stop at a local cycle salvage shop and see what they had sittin' around, but haven't found the time to yet.
I'll have to save this guys store until I see what they'd want for something similar.
I can see this as only helping, and don't see much of any drawback.
The biggest issue (IMO) would be finding a cooler that wouldn't interfere with the coolant rad airflow too much. There are some small enough that they could probably take the place of the stock horn location.

Thanks for the link itlnstln13 !


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post #7 of 10 (permalink) Old 09-06-2006, 11:38 AM
 
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Hi guys, I know very little about how this oil cooling thing works - I grew up in Colorado where we had engine heaters! Could someone just walk me through the logic of cooling the oil to keep the stator cool? Thanks,
kait
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post #8 of 10 (permalink) Old 09-06-2006, 12:02 PM
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Well Kait, basically the alternator (consisting of the stator & rotor) runs in the engine oil off the end of the crankshaft. This is common to lots of bikes, unlike cars & trucks which have the alternator mounted externally & are therefore air-cooled. So logically, the cooler the oil can be, the better it is for the alternator as they can burn out if they get too hot over a long period of time. The alternator is a weak point of the VN750 motor so keeping it cooler will help to prolong it's life.
Hope this helps.

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1980 Suzuki GS1000G

Last edited by Ernie; 09-06-2006 at 12:17 PM.
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post #9 of 10 (permalink) Old 09-06-2006, 12:08 PM
 
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Aha! so that explains it very well. It also explains the engine pull to get to it. Thanks Ernie!
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post #10 of 10 (permalink) Old 09-06-2006, 01:33 PM
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Actually, the engine pull is only because the bolts on the left side are against the frame. If the frame wasn't there, that side cover would come right off!

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