Slight oil leak from screw next to oil filter, Oil leak |
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Slight oil leak from screw next to oil filter, Oil leak |
tsvo |
Jul 26 2018, 08:43 PM
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#1
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Member Group: Members Posts: 123 Joined: 30-January 16 From: Chicago Member No.: 19,616 Region Association: Upper MidWest |
I have a 1973 1.7. I noticed a small puddle on my garage floor this morning. I cleaned it up and have not seen any more. I looked under the car and I think it is coming from the small screen next to the oil filter. Can anyone tell me what this is and what I need to fix it? It seems tight, is there a seal? It was above 90 degrees when I drove it. Could it be related to heat?
Any help is appreciated Terry Attached thumbnail(s) |
iankarr |
Jul 26 2018, 08:47 PM
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#2
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,472 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
Behind that screw is the oil pressure relief valve. There should be a crush washer between the cap and the case. I think I see it peeking out around the cap. Try putting a new washer in and see if that helps. Or maybe some Yamabond. Just don't use a thin blade screwdriver to tighten the cap (like the PO did). Use a tool that matches the slot as closely as possible. What weight oil are you running? It's possible that thinner viscocity oil may leak more under hot conditions. Don't forget to check and top off your oil level.
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tsvo |
Jul 26 2018, 09:37 PM
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#3
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Member Group: Members Posts: 123 Joined: 30-January 16 From: Chicago Member No.: 19,616 Region Association: Upper MidWest |
Behind that screw is the oil pressure relief valve. There should be a crush washer between the cap and the case. I think I see it peeking out around the cap. Try putting a new washer in and see if that helps. Or maybe some Yamabond. Just don't use a thin blade screwdriver to tighten the cap (like the PO did). Use a tool that matches the slot as closely as possible. What weight oil are you running? It's possible that thinner viscocity oil may leak more under hot conditions. Don't forget to check and top off your oil level. Thank you Ian. Sorry for the next dumb question. When I remove the screw to replace the washer will the car lose a lot of oil? |
Mblizzard |
Jul 27 2018, 07:43 AM
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#4
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
Behind that screw is the oil pressure relief valve. There should be a crush washer between the cap and the case. I think I see it peeking out around the cap. Try putting a new washer in and see if that helps. Or maybe some Yamabond. Just don't use a thin blade screwdriver to tighten the cap (like the PO did). Use a tool that matches the slot as closely as possible. What weight oil are you running? It's possible that thinner viscocity oil may leak more under hot conditions. Don't forget to check and top off your oil level. Thank you Ian. Sorry for the next dumb question. When I remove the screw to replace the washer will the car lose a lot of oil? No only about a tea spoons worth will come out. Just need a small rag to catch. |
a71914 |
Jul 27 2018, 07:48 AM
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#5
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Newbie Group: Members Posts: 25 Joined: 17-September 03 From: Sterling, MA Member No.: 1,171 Region Association: North East States |
And be careful. The Pressure Relief Valve is spring loaded.
Keep a bit of tension on that screw when you near the end of the threads. Otherwise you will be looking for the parts all over the garage. Also, remember how the relief valve goes in. If it is put in incorrectly then you will have no oil pressure. |
iankarr |
Jul 27 2018, 08:09 AM
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#6
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,472 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
The crush washer is an unusual size. Number 22 in this diagram. you can also see the spring and piston which is part of this assembly...
http://www.autoatlanta.com/porsche-parts/h...;section=114-00 While you're in there (IMG:style_emoticons/default/smile.gif)...you may want to replace it with Tangerine's upgraded relief valve. Here's a link. If you speak with Chris, he may even throw in the new crush washer... http://www.tangerineracing.com/oilpressurerelief.htm Good luck! |
Dave_Darling |
Jul 27 2018, 09:07 AM
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#7
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914 Idiot Group: Members Posts: 14,984 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
There's a good chance that the oil isn't coming from there. It is more likely to be coming from above that, and dripping down to that cover.
See if the oil filter flange is leaking, or the oil cooler seals, or the distributor, or the oil pressure sender.... --DD |
Mikey914 |
Jul 27 2018, 09:29 AM
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#8
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The rubber man Group: Members Posts: 12,660 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
I'd seconds dave's comment. Survey the area above, it's more than likely it's weeping down.
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rjames |
Jul 27 2018, 10:28 AM
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#9
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I'm made of metal Group: Members Posts: 3,928 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
(IMG:style_emoticons/default/agree.gif)
My money is on the oil cooler seals. (IMG:style_emoticons/default/smile.gif) |
iankarr |
Jul 27 2018, 11:57 AM
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#10
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,472 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
I woulda thought so too, but in the pic it looks like the oil is seeping from the case side of the crush washer and no evidence of drips above.
Terry..def do as the experts say and check the cooler seals and sender area if you haven't already! |
rhodyguy |
Jul 27 2018, 12:14 PM
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#11
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,079 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Look for oil on top of the filter.
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tsvo |
Jul 27 2018, 12:16 PM
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#12
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Member Group: Members Posts: 123 Joined: 30-January 16 From: Chicago Member No.: 19,616 Region Association: Upper MidWest |
Thanks for all your responses. It does look like it is coming from higher up. I missed that as I only went under the car on ramps. Not a lift. Do I need to drop the engine to fix it? Assuming it is a oil cooler related leak.
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Mblizzard |
Jul 27 2018, 12:44 PM
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#13
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
Verify two things. One the leak is not coming from the oil sending unit located just to the right of the dizzy is not leaking.
Also verify that the oil is not coming from the oil fill tube. The gasket below that can leak oil and allow it to run down. Also I would invest in a cheap USB camera for your lap top, tablet, or phone. You can get for around $25 on Amazon. Spend some time looking around with it before you go down the path of replacing the oil cooler seals. Because replacing the oil cooler seals is an engine drop job. |
Dave_Darling |
Jul 27 2018, 06:10 PM
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#14
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914 Idiot Group: Members Posts: 14,984 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
It is not necessarily an engine-drop job, but replacing them with the engine in is done working basically blind, with a dab of grease holding the new seal onto the end of a screwdriver. And R&Ring the cooler retaining nuts about 1/12th of a turn at a time. IIRC, Clay has even replaced the whole cooler without dropping the engine!
Though dropping the engine isn't a huge chore, so I would do that instead. --DD |
tsvo |
Jul 27 2018, 07:30 PM
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#15
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Member Group: Members Posts: 123 Joined: 30-January 16 From: Chicago Member No.: 19,616 Region Association: Upper MidWest |
Thanks everyone. I will dig into it deeper and will certainly use all of the info you have given me.
I appreciate your help. |
troth |
Jul 27 2018, 08:08 PM
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#16
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Member Group: Members Posts: 151 Joined: 17-August 16 From: CT/WA Member No.: 20,305 Region Association: None |
Have replaced cooler seals with the engine in the car. I didn’t think it was really THAT bad. Plenty of resources on here and pelican that have a number of little tricks to make it a little easier. It’s frustrating but doable. The type of job where you should plan for 30 minutes to get just one of the nuts off.
When my cooler seals were leaking, most of the oil was dripping to the bottom of the oil filter. |
ClayPerrine |
Jul 27 2018, 09:12 PM
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#17
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Life's been good to me so far..... Group: Admin Posts: 15,454 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
It is not necessarily an engine-drop job, but replacing them with the engine in is done working basically blind, with a dab of grease holding the new seal onto the end of a screwdriver. And R&Ring the cooler retaining nuts about 1/12th of a turn at a time. IIRC, Clay has even replaced the whole cooler without dropping the engine! Though dropping the engine isn't a huge chore, so I would do that instead. --DD I replaced the oil cooler in a hotel parking lot in Salt Lake City. Didn't drop the motor. You have to remove the studs to get the cooler out that way. And the only way to remove the studs is with vice grips. Won my class in AX the next day. Drove it home at the end of Parade. Yes, it can be done with the engine in the car. But it is much easier to just drop the motor and pull the fan shroud. |
porschetub |
Jul 28 2018, 02:19 AM
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#18
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
For what is worth a handy tool for undoing the relief valve cap is a old 3/4''wood chesil ,grind the taper on the end to the width of the slot and you are there.
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porschetub |
Jul 28 2018, 02:34 AM
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#19
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
X2 reply sorry.
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rhodyguy |
Jul 28 2018, 06:35 AM
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#20
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,079 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
While you're in there....the 'to do' list grows exponentially. Bring cash. A nice big stack of $20s.
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