 Very slight oil leak..., Is this coming from the rear main seal? |
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| chmillman |
 Dec 16 2025, 04:28 PM
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Member  Group: Members Posts: 278 Joined: 15-June 24 From: Switzerland Member No.: 28,183 Region Association: Europe 
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 I have a very slight oil leak that appears to be coming out of the small notch at the joint between the motor and the transmission. It's really nothing that I'm worried about, every once in awhile there is a drop on the floor... I was just curious, does this indicate that the crankshaft main seal is leaking, or it it the transmission? |
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| Superhawk996 |
Dec 16 2025, 04:37 PM
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914 Guru Group: Members Posts: 7,594 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Taste it . . . (IMG:style_emoticons/default/barf.gif) (IMG:style_emoticons/default/happy11.gif) But seriously - smell it. Gear lube has a distinctly different - sulfur, rotten eggs sort of smell that motor oil doesn’t. |
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| chmillman |
Dec 16 2025, 04:47 PM
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#3
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Member Group: Members Posts: 278 Joined: 15-June 24 From: Switzerland Member No.: 28,183 Region Association: Europe
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QUOTE(Superhawk996 @ Dec 16 2025, 11:37 PM)  Taste it . . . (IMG:style_emoticons/default/barf.gif) (IMG:style_emoticons/default/happy11.gif) But seriously - smell it. Gear lube has a distinctly different - sulfur, rotten eggs sort of smell that motor oil doesn’t. Yeah, that was my first thought, I do know what 90 weight smells like, did that, but I really couldn't smelll much. I guess it's engine oil then. |
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| Superhawk996 |
Dec 16 2025, 05:21 PM
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#4
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914 Guru Group: Members Posts: 7,594 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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QUOTE(chmillman @ Dec 16 2025, 06:47 PM) I do know what 90 weight smells like, . . . Very distinctive. Smear a little on your neck. Drives the women wild (IMG:style_emoticons/default/av-943.gif) RMS is the location that is way more likely to leak due to constant supply of oil going to it vs the trans seal that is basically splash only. |
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Posts in this topic
chmillman Very slight oil leak... Dec 16 2025, 04:28 PM
porschetub Looks like RMS to me however is it dripping out th... Dec 16 2025, 07:45 PM Jack Standz RMS. Just had this same issue, but since we use S... Dec 16 2025, 08:41 PM
wonkipop take it for a good long drive.
300-400km round tri... Dec 17 2025, 04:13 AM |
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