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Join Date: Oct 2000
Location: Sherwood, Oregon
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She's bleeding bad :(:(:(:(
Took my 914 to our DE in Lewistown yesterday. But at the end of my second session I sprung a leak. A BIG EPA superfund leak.
Looks to me like the crankshaft seal let go. There is oil everywhere around the back of the impeller housing. Even some coming out the top seam. So after my track side diagnosis. I stayed the night and drove her home 300 miles. Stopped every 30 miles to check the oil. Waited 5 minutes each time to let the oil trickle back down. Took six qts. to get home. ( so that's a qt. every 50-60 miles ) Does my diagnosis sound correct ? Nothing up there to leak other than the cooler, filter and the pump, right. And those wouldn't get into the impeller housing, I wouldn't think. And wouldn't a pump leak have low oil pressure with it ? The stream ( one big continuos drip ) is coming right down the center of the engine support. So, your thought and directions I did search and read the post on the crankshaft seal. No matter what I'm dropping the engine. I have to get the MESS out of there. So I'll tune it up and install new vacuum hoses. .
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor Last edited by cary; 06-02-2002 at 04:35 PM.. |
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06-02-2002, 04:27 PM
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Location: Hickory NC USA
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I assume that the motor is leaking oil near the cooling fan. If so, it could be a couple of things,
1. Main seal 2. Oil Gally plug ( I thing there are a couple) 3. Oil cooler 4. Oil cooler seals Good time to take the motor out an install all new seals.
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'75 914-6 3.2 (Track Car) '81 SC 3.6 (Beast) '993 Cab (Almost Done Restoring) |
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06-02-2002, 05:41 PM
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Thanks Jim........Just put her up to take a look ( couldn't wait ). Because of it being spun by the impeller. Kind of messy everywhere. Both looks like it is coming from between the case and the fan housing.
Gally Plugs.........??? are those the covers for the pressure switchs ? When it comes out. Everything back there will get re-sealed. I'll send the cooler down to EBS for a pressure test.
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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06-02-2002, 06:22 PM
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Location: phobos anomaly
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i think galley plugs seal up machining holes in the case.
i think thats what it is... |
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06-02-2002, 06:24 PM
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There is also a stud that holds the fan housing to the case that can back out and cause an oil lead. It allows oil to get into the fan housing and fling it everywhere. I posted this several months ago and called it "Strang oil leak" Do a search and see if you can find it.
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06-02-2002, 07:10 PM
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When rebuilding a motor, some folks recommend removing the galley plugs and tapping and installing 3/8" NPT plugs. This way the no OEM plug failure problem.
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'75 914-6 3.2 (Track Car) '81 SC 3.6 (Beast) '993 Cab (Almost Done Restoring) Last edited by Jim Smolka; 06-04-2002 at 05:20 AM.. |
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06-03-2002, 02:25 AM
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When I had my engine rebuilt they tapped them just like jim said, seems to be the thing to do!
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1990 Porsche 944 S2 Cabriolet 1975 Porsche 914 1.8 - Track Car |
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06-03-2002, 05:28 AM
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If you don't do that, at least epoxy over the plugs. That can help to keep them in place. It's cheaper and easier than tapping the holes, and you don't risk having metal shavings fall into the case. But it's not as effective as using threaded pipe plugs.
--DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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06-03-2002, 07:08 AM
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Dave where are they ? Can I see them from under the car ? Or are they behind the fan housing ?
All I have is the Bentley manual. Do you know of a picture where they show ? No, I'm not tapping into the engine unless it's all tore down. With using a qt. every 50-60 miles does that sound more likely the location of the leak ? That seems pretty excessive for the crank seal. Dave Question : I'm putting together my order @ PP. Looking at the 914 seals. I assume the rear main is what they're calling rear pulley seal. ( Because it the same as the 911 ? ).
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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06-03-2002, 08:40 AM
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IIRC You will have to remove the fan housing to get at the oil galley plugs, though I'm not positive on the location. I will post a pic of drained and tapped holes tonight if you'd like. They are little aluminum frost plugs that blend in with the case and look a lot like cast-in bosses. With the plug already out, you could probably tap the hole safely without dissassembling the engine if you plugged the passage with a bit or rag, tapped it, then fished the rag out afterward
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-- Dave '73 914, 2056 GT/SC done! '69 Lotus Europa S2 - under resto. pics at http://www.syer.net Last edited by DDS; 06-03-2002 at 12:44 PM.. |
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06-03-2002, 11:40 AM
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DDS............I think I know what I'm looking for. There are a couple on the bottom of my 3.2 in my Carrera. I always wondered what they were. I would be great if you could post the pictures tonight.
Hopefully I won't get thrown out of my house this week. 2 bays of my 3 car garage have my RS conversion of my 77 Carrera. Now I have the 914 up on jacks on the pad. You'd think was doing this for a living...............not for fun. 
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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06-03-2002, 11:51 AM
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I'll post the pics - I removed the plugs myself and I can't really remember where they are - funny...
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-- Dave '73 914, 2056 GT/SC done! '69 Lotus Europa S2 - under resto. pics at http://www.syer.net |
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06-03-2002, 12:46 PM
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There are a bunch of them on the front of the case. You may be able to see one or two with a flashlight and possibly a mirror, but actually getting to most of them requires removing the fan shroud. They look like little aluminum disks that have been shoved into holes in the case. 'Cause that's just about what they are. They usually sit even with the surface of the case, or just a little bit shy of it.
There are a couple back behind the flywheel, too. If you have to take the flywheel off for any reason, hit those with epoxy as well. --DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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06-03-2002, 01:15 PM
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Doesn't sound like the galley plugs, they leak out 4 quarts of oil in about 30 seconds. Most likely the impeller seal or the oil cooler/seals.
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06-03-2002, 02:12 PM
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I had almost the same thing happen to me after an autoX ... turned out to be a blown oil cooler. People who saw the event thought my engine had blown...big puff of smoke...I didn't notice anything till I got in and everyone came running over. Oil was all over the place. Managed to drive home , but didn't figure out the problem till much later.
A local vdub place has a contraption to test oil coolers...and mine wouldn't hold more than 5psi ... bingo... a new cooler and my car is much happier. hth, Tony |
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06-03-2002, 03:12 PM
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Chris is right - if one of those popped completely, the oil would drain quickly. Here's the pics.
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-- Dave '73 914, 2056 GT/SC done! '69 Lotus Europa S2 - under resto. pics at http://www.syer.net Last edited by DDS; 06-03-2002 at 04:52 PM.. |
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06-03-2002, 04:45 PM
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-- Dave '73 914, 2056 GT/SC done! '69 Lotus Europa S2 - under resto. pics at http://www.syer.net |
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06-03-2002, 04:50 PM
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oops.
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-- Dave '73 914, 2056 GT/SC done! '69 Lotus Europa S2 - under resto. pics at http://www.syer.net |
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06-03-2002, 04:55 PM
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Got it.......Thanks Dave
Tony, I think the testers are $70 at EBS. I might just go ahead and buy one. Rather than shipping back a forth.
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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06-03-2002, 08:07 PM
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You might check with a local vdubb place cause I bet alot of them have that sort of thing. The place here that had it is a vdubb junkyard so they sell alot of them used if they will hold a certain amount of pressure (alot cheeper than the $140 they want for a new one)...
anyway, good luck... Tony |
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06-04-2002, 12:25 PM
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1973 Porsche 914 1.7 very modifed
74 Porsche 914 2.0 
1975 Porsche 914 2.0L
