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Honda ST1100 Section => Honda ST1100 General Questions => Topic started by: Mypod on March 02, 2013, 06:33:22 PM

Title: Rear diff
Post by: Mypod on March 02, 2013, 06:33:22 PM
Hi guys,
I'll admit right from the start that I'm not much of a mechanic so please excuse my ignorance :). I own a '05 1100PY (had it for about a month) and I thought I would be time to get real serious and check all the fluid/oil levels. The engine oil is no problem (I changed that + new filter when I got the bike home) but I was wondering how to check the oil level in the rear diff? All the manuals (and thank you, Brock, for the link on the manual you posted!) don't tell me...at least I haven't found anything on the oil level etc. Before I undoing bolts etc. I thought it would be good to find out first which one :). Any help would be great.

Mypod
Title: Re: Rear diff
Post by: alans1100 on March 02, 2013, 06:46:43 PM
This link will explain it all

EP 80 oil is recomended but I use 80/90 because that's all I could fine.

Level is the same as on any usual diff on a car/bike.........just below the filler hole.

http://www.pan-europe.utvinternet.ie/owners_manual/drive_train.htm (http://www.pan-europe.utvinternet.ie/owners_manual/drive_train.htm)
Title: Re: Rear diff
Post by: Brock on March 02, 2013, 07:21:33 PM
The manual tells you the amount to put in, its a very small amount, 130 ml a 500ml bottle will last you a few years.

I use an oil syringe  (Available at Repco) to refill the oil. With bike on centre stand, undo fill and drain plugs and catch oil in suitable container. refit drain plug and fill with new oil. I fill to the lip of the fill hole (or 130ml if you can measure it), refit fill plug. 15 minutes and job is done. Hypo 80/90 is good.
Title: Re: Rear diff
Post by: Mypod on March 02, 2013, 07:44:08 PM
Ahh...thank you guys, much appreciated!
Title: Re: Rear diff
Post by: Lionel on March 02, 2013, 07:44:36 PM
There's oil in the diff?
Don't tell my 2000 or 2002 ST1100P.
Title: Re: Rear diff
Post by: Biggles on March 02, 2013, 09:51:50 PM
There's oil in the diff?
Don't tell my 2000 or 2002 ST1100P.

Don't fret Lionel.  It's only the WA guys whose bikes have differentials.  You and I have Final Drives.
Title: Re: Rear diff
Post by: Whizz on March 03, 2013, 04:33:39 PM
Surely doesn't a Differential fit between the two back wheels of a car to keep the speed DIFFERENTIAL between the wheels from scrubbing one tyre when going round corners??? ...now I know 1100's are different but surely not THAT different! (Spoken like a true Electronics Engineer!)  :grin :grin
Title: Re: Rear diff
Post by: Mypod on March 03, 2013, 04:43:03 PM
Hey guys, go easy on me...I know my lack of mechanical knowledge is showing :)....I think I'll go out to the shed and check the oil level in my final drive.....then go for a spin :)
Title: Re: Rear diff
Post by: alans1100 on March 03, 2013, 04:54:38 PM
Hey guys, go easy on me...I know my lack of mechanical knowledge is showing :)....I think I'll go out to the shed and check the oil level in my final drive.....then go for a spin :)

When you decide to change the oil make sure the bike is on the centre stand.

When I got my bike I had to clean the oil of the drive housing every so often...........who-ever checked the oil before I had the bike must have checked it while on side stand (yes, it does happen) and over filled it. Excess oil came out through the breather. 
Title: Re: Rear diff
Post by: Whizz on March 03, 2013, 04:55:42 PM
Mypod, just friendly banter I promise, no malice intended...very much tongue-in-cheek  :grin :grin

Notice the comment about "Spoken like a true Electronics Engineer", trust me I know as much about things that need to be covered in oil as you do...in fact probably far less!!  >:()
Title: Re: Rear diff
Post by: Brock on March 03, 2013, 05:44:38 PM
Dont worry about em Mypod, some of these guys became mechanical experts once they figured out how to turn the key, especially the "Engineers". :grin :grin :grin

The only thing that matters is that those who know stuff, understood what you meant and gave advice.

 o:) o:)
Title: Re: Rear diff
Post by: Mypod on March 03, 2013, 06:19:25 PM
Hi guys,
The one thing I love about being a member of Ozstoc is the friendly banter!! (just like my family, lol). No offence taken at all, Whizz & Biggles :). I'm just a 'dumbie' on mechanical stuff, so I'll ask first before I do something stupid, lol. Yep, great advise from you guys as well...it might sound simple but if you don't know, you don't know, lol.
Title: Re: Rear diff
Post by: saaz on March 04, 2013, 03:51:30 PM
I secretly changed the diff oil while you were distracted during tyre chnages...Honda does not give an interval for changing the oil, but I do it every year or so as it is cheap to do. Unless there is a leak the original oil might last out the bike.

There's oil in the diff?
Don't tell my 2000 or 2002 ST1100P.
Title: Re: Rear diff
Post by: alans1100 on March 04, 2013, 04:31:40 PM
Honda does not give an interval for changing the oil,

John,

That info is in my pdf manual.

Maintenance Schedule

Final drive.......replace every two years or 36,000 kms or 24,000 miles (rounded to the nearest 1000).

Guess every third engine oil change you do the final drive as well.

mine drive has only been done twice at 80,000kms and 140,000kms......
Title: Re: Rear diff
Post by: saaz on March 04, 2013, 04:54:18 PM
So it does.  I should have checked as trying to catch up with lots of things at once.  Many final drives are supposedly filled for life, so I think extended changes would be ok, especially as gear oil stinks so much!

Honda does not give an interval for changing the oil,

John,

That info is in my pdf manual.

Maintenance Schedule

Final drive.......replace every two years or 36,000 kms or 24,000 miles (rounded to the nearest 1000).

Guess every third engine oil change you do the final drive as well.

mine drive has only been done twice at 80,000kms and 140,000kms......
Title: Re: Rear diff
Post by: Greencan on March 06, 2013, 08:26:10 PM
Quote
I secretly changed the diff oil while you were distracted during tyre chnages

...its a diff John a diff John...but not as we know it, not as we know it...

and why one asks??????????????...coz it 'asnt any planetary gears :eek

Yours, Spock :nahnah
Title: Re: Rear diff
Post by: saaz on March 06, 2013, 09:15:07 PM
It is a great point, but only for someone who cares   :butt


Quote
I secretly changed the diff oil while you were distracted during tyre chnages

...its a diff John a diff John...but not as we know it, not as we know it...

and why one asks??????????????...coz it 'asnt any planetary gears :eek

Yours, Spock :nahnah
Title: Re: Rear diff
Post by: Greencan on March 06, 2013, 10:19:34 PM
Quote
It is a great point, but only for someone who cares   

Touche' Sir touche' :-++

And ima bin drinkin ana usin me iphone :-)