 Oil leaks after rebuild, Dropping motor to track down oil leaks |
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| Wew |
 Apr 28 2021, 09:49 AM
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#1
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Member  Group: Members Posts: 236 Joined: 17-January 15 From: Novato, ca Member No.: 18,335 Region Association: None  |
Hi all,
Engine rebuild has not gone as smooth as I had hoped. I am dropping the engine again to figure out the source of my leaks. I have drips coming from a couple of the tube on the passenger side under the oil cooler. Tough to tell if it's the cooler or the tubes. Cylinder 3 is giving me the most concern. It almost looks like one of the four cylinder studs is leaking oil. I can't tell exactly as it could be the actual mating surface of the cylinder and the block. Anyway I am dropping the motor to track these down. Has anyone else come across oil leaking out of a stud or is this just the cylinder and engine mating surface leaking? If it is how have any of you remedied this? Is there a bullet proof sealant that others have used to stop this? Attached is an image I borrowed online that shows the location of where I see oil coming from. Thanks for sharing as always.  |
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Replies
| Root_Werks |
May 5 2021, 09:54 AM
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#2
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Village Idiot Group: Members Posts: 8,930 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest 
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I would like to know the outcome of this leak. Had a few 914-4's with similar leaks that seemed hard to track down. A bad oil pressure switch was one of them and bad tuna can gasket another. When driving, oil got everywhere and it was hard to track down.
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Posts in this topic
Wew Oil leaks after rebuild Apr 28 2021, 09:49 AM
Wew Are the 1973 2.0 engines supposed to have the push... Apr 28 2021, 12:48 PM Mark Henry Where's the underside cooling tin?
What did y... Apr 28 2021, 02:27 PM
wonkipop
Where's the underside cooling tin?
What did ... May 15 2021, 02:04 AM Mark Henry
Where's the underside cooling tin?
What did... May 15 2021, 05:09 AM wonkipop
[quote name='wonkipop' post='2915960' date='May 1... May 15 2021, 09:52 PM Wew Hi Mark,
I removed the tin to see the leaks.
I u... Apr 28 2021, 03:08 PM 76-914 Don't overlook the oil pressure sender or more... Apr 28 2021, 04:14 PM Wew sage advice... Will check there as well.
I hate o... Apr 28 2021, 04:37 PM Mark Henry So you took the pushrod tubes out to remove the ti... Apr 28 2021, 04:42 PM Wew ahh...
That is a photo I borrowed from another us... Apr 28 2021, 04:46 PM Mark Henry Okay as long as you have those tins, your engine a... Apr 28 2021, 06:32 PM Wew Dropped the engine tonight.
That’s about all I c... Apr 28 2021, 08:03 PM iankarr Four of the cylinder head bolts/studs pass through... Apr 28 2021, 08:16 PM Wew Thanks for softening the blow Ian.
Mark, I could... Apr 28 2021, 09:25 PM Mark Henry Looks like the PR tube at the head, then it's ... Apr 30 2021, 06:42 AM Wew Thanks Mark.
I removed the fan housing shroud.
... May 1 2021, 10:40 AM Wew
Two examples of the set up from PO.
Consideri... May 2 2021, 12:24 PM Mark Henry I personally would use a whip. That fitting and a ... May 2 2021, 12:54 PM FlacaProductions If you want to keep the gauge, you may want to re-... May 2 2021, 12:58 PM Wew That great info from both of you.
I got a better ... May 2 2021, 10:22 PM 76-914 So it was OP sender.That looks like it is chipped ... May 3 2021, 08:15 AM Wew Yikes,
Not what I wanted to hear.
Can this be d... May 3 2021, 11:28 AM Wew What are you thoughts on putting the sensor flush ... May 4 2021, 12:43 PM Root_Werks Isn't there another galley you can unplug and ... May 4 2021, 01:56 PM Shivers Before I gave up and started tearing it down. I... May 4 2021, 02:43 PM Wew Two good points.
I have an appointment with a sho... May 5 2021, 09:18 AM Mark Henry Wew are you sure it's leaking from the switch?... May 15 2021, 05:19 AM Superhawk996 Been there, done that with leaking oil pressure sw... May 15 2021, 08:48 AM barefoot When i got my 911SC it had an oil leak I couldn... May 16 2021, 06:05 AM Wew Hi all,
Sorry for the absence. Been away on vaca... May 17 2021, 02:32 PM Wew Hi all,
I am back at putting my engine back toget... Jun 16 2021, 12:27 PM ClayPerrine
I also had a tough time getting the banana muffl... Jun 16 2021, 12:51 PM Wew Hi all,
Engine back in and running better after v... Jun 29 2021, 07:38 PM Wew I just looked at some torque specs for the oil pre... Jun 29 2021, 10:42 PM |
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