 Help me find my oil leak! |
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| bkrantz |
 Jan 5 2023, 09:24 PM
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#1
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914 Guru  Group: Members Posts: 8,436 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains 
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As I described in my build thread, last year, once I got the engine running, I noticed significant oil drops (or more) after each drive. With winter in full throttle, I decided to drop the motor, and see about fixing the leak.
Here's the view of the front. Maybe you can see some oil. Attached thumbnail(s) 
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Replies
| nathanxnathan |
Jan 11 2023, 11:44 PM
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#2
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Member Group: Members Posts: 294 Joined: 16-February 18 From: Laguna Beach, CA Member No.: 21,899 Region Association: Southern California |
The fan tends to suck in and redistribute oil all over that side of the motor. Most of my experience is with type 4 powered buses where the fan is at the back, but I think the power of the fan is more intense than any air flowing by. The most common leaks are pushrod tube seals. You wouldn't think that oil all dripping from the area of the bottom of the fan would be from there but my experience with ultra violet dye says that's where it comes from most of the time.
People will argue that viton seal will work dry, but that hasn't ever worked for me. The best thing I've found is a bit of ultra black silicone on them, but even with that, it's only a matter of a few months and it starts to leak again. |
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Posts in this topic
bkrantz Help me find my oil leak! Jan 5 2023, 09:24 PM
bkrantz I found some oil inside the inner blowing housing,... Jan 5 2023, 09:26 PM bkrantz Starting from the top, the case seam looks OK. Jan 5 2023, 09:27 PM
Krieger
Starting from the top, the case seam looks OK.
... Jan 7 2023, 08:29 PM bkrantz The front seal looks a bit oil wet. But is the se... Jan 5 2023, 09:29 PM bkrantz Lots of oil sitting on the top edge of the oil pum... Jan 5 2023, 09:30 PM bkrantz Quite a bit of oil pooled in the right motor mount... Jan 5 2023, 09:31 PM bkrantz No oil visible where I would expect it if the cool... Jan 5 2023, 09:33 PM bkrantz Some oil sitting on top of the filter. Jan 5 2023, 09:34 PM bkrantz Meanwhile, underneath I might have just a bit of o... Jan 5 2023, 09:36 PM bkrantz But the inner seals, and the cylinder-to-case join... Jan 5 2023, 09:38 PM Shivers Looking at that black wire on the front of the eng... Jan 6 2023, 08:00 AM porschetub
Looking at that black wire on the front of the en... Jan 6 2023, 01:35 PM dr914@autoatlanta.com you have an aftermarket oil pump, they are very ve... Jan 6 2023, 01:36 PM 930cabman
you have an aftermarket oil pump, they are very v... Jan 6 2023, 02:20 PM Superhawk996
[quote name='dr914@autoatlanta.com' post='3049581... Jan 6 2023, 09:58 PM 930cabman
[quote name='dr914@autoatlanta.com' post='304958... Jan 7 2023, 06:38 AM Superhawk996
I have wondered the same. Is this an application... Jan 7 2023, 09:44 AM 930cabman
I have wondered the same. Is this an applicatio... Jan 7 2023, 06:19 PM bkrantz
I have wondered the same. Is this an applicatio... Jan 7 2023, 09:16 PM Superhawk996
[quote name='Superhawk996' post='3049751' date='J... Jan 7 2023, 11:23 PM bkrantz Thanks everyone. Based on what I see so far, I wi... Jan 6 2023, 09:54 PM Superhawk996 I think you have oil going in the direction of the... Jan 7 2023, 11:50 PM cassmcentee Is it possible to have a Wobble in the Crankshaft?... Jan 8 2023, 04:35 AM Shivers
Is it possible to have a Wobble in the Crankshaft... Jan 8 2023, 07:08 AM BeatNavy My two cents from my experience here: http://www.9... Jan 8 2023, 08:06 AM Geezer914 If your oil pump cover was leaking, oil would be d... Jan 8 2023, 04:56 PM bkrantz More thanks, everyone.
During assembly, I used a ... Jan 8 2023, 10:13 PM searunner
As I described in my build thread, last year, onc... Jan 9 2023, 04:32 AM bkrantz OK, more info. And in my quest for the right answ... Jan 9 2023, 08:12 PM bkrantz I confirmed this by running a Qtip around the base... Jan 9 2023, 08:15 PM bkrantz First stupid: when I went to unscrew the oil filte... Jan 9 2023, 08:21 PM bkrantz No obvious leak point around the pump cover. Jan 9 2023, 08:22 PM bkrantz No leaks around the studs. Jan 9 2023, 08:23 PM bkrantz Here's the cover off. No dramatic scoring. A... Jan 9 2023, 08:25 PM 930cabman
Here's the cover off. No dramatic scoring. ... Jan 10 2023, 12:26 PM bkrantz
Here's the cover off. No dramatic scoring. ... Jan 10 2023, 07:46 PM bkrantz And the pump itself.
BTW, if I need to pull this,... Jan 9 2023, 08:26 PM iankarr I have the same oil pump cover and it was farrrr f... Jan 9 2023, 08:50 PM cassmcentee Great news!
Nothing crazy Jan 9 2023, 09:15 PM bkrantz
Great news!
Nothing crazy
But perhaps prett... Jan 10 2023, 07:37 PM r_towle Is there a slot in the body and cover for an o-rin... Jan 10 2023, 07:54 PM bkrantz
Is there a slot in the body and cover for an o-ri... Jan 11 2023, 08:22 PM bkrantz Thanks, everyone. Going back to my build thread. Jan 14 2023, 09:26 PM |
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