My engine leaks more oil than a pasta strainer |
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My engine leaks more oil than a pasta strainer |
Tdskip |
Feb 12 2019, 01:32 PM
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#1
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
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Tdskip |
Feb 12 2019, 01:33 PM
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#2
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
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914_teener |
Feb 12 2019, 01:36 PM
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#3
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914 Guru Group: Members Posts: 5,198 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Yes....
Are your heads vented? |
Tdskip |
Feb 12 2019, 01:48 PM
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#4
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
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914_teener |
Feb 12 2019, 02:49 PM
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#5
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914 Guru Group: Members Posts: 5,198 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Yes.... Are your heads vented? Thanks for the fast response. I have no idea If the heads are vented, are you referring to a boil breeder wine? Sorry-type 4 engines are totally new to me still. The engine builds up pressure as the pistons are moving near the speed of sound at high RPM's. This can build up enough pressure to blow by the seals, especially if they haven't been installed correctly. The oil in the heads .....horizontally opposed in this case... drains back into the sump by gravity. Imagine a straw and putting you thumb on the end of it. The venting helps relieve the crankcase pressure and helps the oil drain back to the sump. This is true of most internal combustion engines. |
914_teener |
Feb 12 2019, 02:53 PM
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#6
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914 Guru Group: Members Posts: 5,198 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
I would thoroughly clean the bottom of the motor and then inspect it while running statically to try and tell where it is leaking from. |
mobymutt |
Feb 12 2019, 02:57 PM
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#7
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Senior Member Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada |
I can't quite tell where it's oily, but have you checked the valve cover gaskets? Mine keep slipping out of place and spraying oil everywhere.
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Tdskip |
Feb 12 2019, 03:03 PM
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#8
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
Thanks gentlemen-it does have a breather on it, thanks for clarifying.
Cleaning everything and then running static is a good idea, thank you. How tough of a job is it to replace those tubes and seals? Thanks! |
mobymutt |
Feb 12 2019, 04:06 PM
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#9
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Senior Member Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada |
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Tdskip |
Feb 12 2019, 05:43 PM
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#10
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
Thanks gentlemen-it does have a breather on it, thanks for clarifying. Cleaning everything and then running static is a good idea, thank you. How tough of a job is it to replace those tubes and seals? Thanks! Super easy with the engine out! Oh fine, suggest I do it the right way. Grin. |
worn |
Feb 12 2019, 07:11 PM
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#11
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can't remember Group: Members Posts: 3,156 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest |
Thanks gentlemen-it does have a breather on it, thanks for clarifying. Cleaning everything and then running static is a good idea, thank you. How tough of a job is it to replace those tubes and seals? Thanks! Super easy with the engine out! Oh fine, suggest I do it the right way. Grin. You are not alone in the leak department. I don’t wanna pull the motor either |
porschetub |
Feb 12 2019, 09:29 PM
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#12
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Advanced Member Group: Members Posts: 4,699 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Clean the whole motor done with petrol (gas) or brakeclean,place a sheet of cardboard under the motor and trace the leaks after bringing up to temp,done this for years ...it works.
Good luck (IMG:style_emoticons/default/beerchug.gif) . |
Rand |
Feb 12 2019, 09:30 PM
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#13
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
How are your push rod tube seals? Those and head cover gaskets are easy to do in the car. At least nail those off before pulling the engine.
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rjames |
Feb 13 2019, 01:26 AM
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#14
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Engine doesn’t need to be pulled to replace the pushrod tube seals. Definitely easier with the engine out though.
I’m betting your oil cooler seals need replacing, too. And likely the rear main seal... (All can be done with the engine in the car) |
jcd914 |
Feb 13 2019, 01:42 AM
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#15
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
I would check the oil pressure switch.
It is tucked in next to the distributor under the engine sheet metal. Since it is under the engine sheet metal and up high in the cooling air flow the oil get blown all over the passenger side of the engine and makes a mess all over when it leaks. Jim |
Tdskip |
Feb 13 2019, 08:19 AM
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#16
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
Thanks for all of the responses and ideas.
Let me read up on those procedures. |
Dave_Darling |
Feb 13 2019, 01:30 PM
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#17
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
That looks to be the left side (driver's side) of the motor, where the thermostat goes. There's no thermostat or bracket, which is suboptimal; it is generally much preferred for the thermostat and cooling flaps to be there and work correctly.
Is there a pulley wheel a little forward and above where we can see in the photo? The stock thermostat wire goes around a pulley up there. The pulley is mounted with a bolt THAT GOES THROUGH INTO THE CRANKCASE. If the pulley is removed and the bolt is not replaced, you have a very nice hole there for dirt to get into and oil to come out of. You might check that. Replacing the pushrod tube seals is no more difficult IMHO than doing a valve adjustment. You wind up pulling the tubes halfway out of the heads and letting them dangle by their middle from the hole in the rocker box, giving you easy access to each end. You have to make sure the area where the tubes go is clean--both ends of it! And lubricate the O-rings with engine oil or a non-hardening paste lubricant. Ignore Elliott when he says to use RTV; FAT Performance (who built his motor) is way too fond of that crap. --DD |
porschetub |
Feb 13 2019, 06:55 PM
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#18
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Advanced Member Group: Members Posts: 4,699 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Replacing the pushrod tube seals is no more difficult IMHO than doing a valve adjustment. You wind up pulling the tubes halfway out of the heads and letting them dangle by their middle from the hole in the rocker box, giving you easy access to each end. You have to make sure the area where the tubes go is clean--both ends of it! And lubricate the O-rings with engine oil or a non-hardening paste lubricant. Ignore Elliott when he says to use RTV; FAT Performance (who built his motor) is way too fond of that crap. --DD (IMG:style_emoticons/default/agree.gif) ,I would think that if this engine has multiple leaks @ all the places mentioned earlier on engine removal is a better option if you head down the "do it once and do it right" road. In regards to the best sealer for the pushrod tubes, I can't say enough about Hylamar blue,a top product,stays soft and is resistant to oil fuel etc,been using Loctite,Permatex and many others for years but none of them do such a good all round job as the Hylomar. Dave made a good comment about the cooling system,seen many overheat and this causes seals to dry out and then the leaks start,a very dirty/oily crankcase will also effect cooling due to poor heat transfer..VW put cast fins on the lower crankcase for a reason. |
SirAndy |
Feb 13 2019, 09:19 PM
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#19
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
If the pulley is removed and the bolt is not replaced, you have a very nice hole there for dirt to get into and oil to come out of. (IMG:style_emoticons/default/agree.gif) |
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