Alternator oil seal?


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offcenter
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Alternator oil seal?

Post by offcenter »



I pulled the alternator from my '99 to replace the oil seal that is in the end of
the alternator itself.
My question is:
Should there be oil in the chamber where the rubber cush drive pads are
located? Or is there another oil seal in the back of the engine to
keep this area dry? Mine is very wet with oil in there.
Thanks guys.


George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

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MikeB
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Re: Alternator oil seal?

Post by MikeB »

Yes, that is how it is supposed to be.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
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offcenter
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Re: Alternator oil seal?

Post by offcenter »

Ok, thanks MikeB.
Kinda what I figured, but I wanted to see if anyone
knew something that I didn't.
George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

Fuzzyswing
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Re: Alternator oil seal?

Post by Fuzzyswing »

I have a1988 gl1500 it too has oil between engine and alternator.
However I'm unable to stop mine from leaking a small amount of oil.
I've replaced the oring with oem
Still leaking. Any idea what to do?

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MikeB
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Re: Alternator oil seal?

Post by MikeB »

Is it leaking around or through the alternator?

The large O-Ring is for the circumference around the alternator and the oil seal on the alternator shaft is to keep the oil from going past the shaft into the alternator.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
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Fuzzyswing
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Re: Alternator oil seal?

Post by Fuzzyswing »

It is leaking from the large oring
Only between engine and alternator

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MikeB
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Re: Alternator oil seal?

Post by MikeB »

If you used the OEM o-ring on the OEM alternator, I do not have any idea what you can do to stop it from leaking.
MikeB
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USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
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Bluewaterhooker0
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Re: Alternator oil seal?

Post by Bluewaterhooker0 »

If you have an aftermarket alternator, most likely of Chinese origin, inconsistencies in the diameter of the alternator would be suspect.

Fuzzyswing
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Re: Alternator oil seal?

Post by Fuzzyswing »

Yes it is a after market alternator
I will pull it and Mike the oem and compare it to the leaking one
Thank you. Ride safe!!!!

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Re: Alternator oil seal?

Post by Fuzzyswing »

Hi guys I am just checking in to see if anyone else has had this oil leak problem from the alternator. Mine is still leaking, I can't tell if it's from the
Large o ring or the shaft seal on the alternator. Any help would be greatly appreciated.

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MikeB
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Re: Alternator oil seal?

Post by MikeB »

Eleven months ago you posted this:
Fuzzyswing wrote:
Wed May 23, 2018 5:30 am
Yes it is a after market alternator
I will pull it and Mike the oem and compare it to the leaking one
Thank you. Ride safe!!!!
What did you discover?
Did you measure the original o-ring dimensions?
Did you replace the o-ring?
Did you look inside the alternator for oil?
If there is oil inside the alternator, it is most likely the shaft seal leaking and not the o-ring.
A leaking o-ring will allow oil to pass between the alternator and the engine, not through the alternator.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
Industrial Maintenance Tech - 22 years.
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Fuzzyswing
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Re: Alternator oil seal?

Post by Fuzzyswing »

Yes I measured the o ring groove an it is the same as the one I took off.
Any idea what and where I can get a new alternator seal?

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MikeB
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Re: Alternator oil seal?

Post by MikeB »

Fuzzyswing wrote:
Sun Apr 21, 2019 7:14 pm
Yes I measured the o ring groove an it is the same as the one I took off.
Any idea what and where I can get a new alternator seal?
Alternator shaft seal? Can't really help you with that since I have no idea what alternator you have.
What you can do it dissemble the alternator or have an alternator repair shop disassemble it for you. Remove the seal and take it to a bearing supply house and have them get a replacement for you.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
Industrial Maintenance Tech - 22 years.
Retired in Tacoma, WA

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Re: Alternator oil seal?

Post by Fuzzyswing »

I will do that. Thank you for your help!

pocketchange
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Re: Alternator oil seal?

Post by pocketchange »

SKF 9879 SEAL/Honda has one too (if you got lots of $$$.)
Seal for the alternator drive. (less than $10.00.) 8-)
When this seal goes away the alternator gets wet (w/oil.)
BTW, this seal has nothing to do with the Alternator O-Ring Seal. pc



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