Crank pulley leaking oil
- retrovan
- Donor
- Posts: 8709
- Joined: Mon Feb 07, 2011 8:51 pm
- What model do you have?: 52T1,68FB,72Bay,75FL
- Location: Eich! no, in Jefferys Bay
- Has thanked: 421 times
- Been thanked: 539 times
- Contact:
Re: Crank pulley leaking oil
Yes dependent on oil used it could thin the oil to such an extent to leak past the gap.
Herman
Herman
1952 Split Beetle 1835cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
-
- Donor
- Posts: 4973
- Joined: Wed Sep 14, 2005 9:24 am
- What model do you have?: 77 SP
- Location: Johannesburg
- Has thanked: 4 times
- Been thanked: 98 times
- Contact:
Re: Crank pulley leaking oil
Is the breather pipe from the oil filler connected to the air filter?
No stock engine needs additional breathing, period.
If the pulley is letting out the oil vapour out, you have too much crank case pressure, then the breather system is a band aid to a bigger issue.
Yes a overheating engine will generate more crank case presure as cylinders / pistons don't seal as they should.
No stock engine needs additional breathing, period.
If the pulley is letting out the oil vapour out, you have too much crank case pressure, then the breather system is a band aid to a bigger issue.
Yes a overheating engine will generate more crank case presure as cylinders / pistons don't seal as they should.
For what it's worth, ignorance has no limits ......
- John Alves
- Crankshaft
- Posts: 791
- Joined: Thu Jan 31, 2008 1:06 pm
- What model do you have?: 58Ghia 68bug68buggy
- Location: Cape Town
- Has thanked: 3 times
- Been thanked: 48 times
Re: Crank pulley leaking oil
Not connected, could this be the problem?
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
-
- Camshaft
- Posts: 894
- Joined: Wed Apr 20, 2016 7:10 pm
- What model do you have?: 1960 ghia
- Location: Nelson Mandela Metro
- Has thanked: 1 time
- Been thanked: 107 times
Re: Crank pulley leaking oil
Well,.....you've heard from an array of people,...what worked for me and from ghurus that is far more experienced than me. You nowhave an array of options to follow through upon.
Good luck!
Haans
Good luck!
Haans
-
- Donor
- Posts: 4973
- Joined: Wed Sep 14, 2005 9:24 am
- What model do you have?: 77 SP
- Location: Johannesburg
- Has thanked: 4 times
- Been thanked: 98 times
- Contact:
Re: Crank pulley leaking oil
CONNECT THAT BREATHER PIPE....
For what it's worth, ignorance has no limits ......
- Tony Z
- Donor
- Posts: 14994
- Joined: Wed Sep 14, 2005 8:33 am
- What model do you have?: 2.3L 69; 1302; P/Van
- Location: Klipheuwel (near Durbanville), Cape Town or working at sea
- Has thanked: 192 times
- Been thanked: 487 times
Re: Crank pulley leaking oil
my bus has been upgraded from 1600cc to 2100cc. I run one large diameter hose to the ground for breathing. Nothing fancy.
No leaks from the hose or the pulley.
I'll bet that you have oil inside your breather hoses (check the one coming out of the alternator stand).
Again, this is caused from excessive blowby. Doesnt matter if your compression tests are good, you still have blowby issues. Fix them and you wont have to use an elaborate breather setup on a stock engine.
It could be that your case is cut for a larger pulley and you are using a stock pulley, but if it didnt leak when new, then its not likely the case
And no Herman, a thin oil shouldnt come out of the pulley either as the pulley is pushing air into the case.
It works like a version of a labyrinth seal, which cannot physically leak when in operation unless something is wrong.
Think of the effects of trying to piss into a 30knt wind... I suspect you'll get wet - thats how the crank screw works, oil thickness has nothing to do with it.
No leaks from the hose or the pulley.
I'll bet that you have oil inside your breather hoses (check the one coming out of the alternator stand).
Again, this is caused from excessive blowby. Doesnt matter if your compression tests are good, you still have blowby issues. Fix them and you wont have to use an elaborate breather setup on a stock engine.
It could be that your case is cut for a larger pulley and you are using a stock pulley, but if it didnt leak when new, then its not likely the case
And no Herman, a thin oil shouldnt come out of the pulley either as the pulley is pushing air into the case.
It works like a version of a labyrinth seal, which cannot physically leak when in operation unless something is wrong.
Think of the effects of trying to piss into a 30knt wind... I suspect you'll get wet - thats how the crank screw works, oil thickness has nothing to do with it.
ANGRRR
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
vader wrote: The Force is strong with you young Sith Lord Z!
- retrovan
- Donor
- Posts: 8709
- Joined: Mon Feb 07, 2011 8:51 pm
- What model do you have?: 52T1,68FB,72Bay,75FL
- Location: Eich! no, in Jefferys Bay
- Has thanked: 421 times
- Been thanked: 539 times
- Contact:
Re: Crank pulley leaking oil
Agreed Tony, but I am sure if the gap between block and pulley is incorrect, hot thin oil will piss out faster then thick oil.
This is what is being said ......
Can not remember him saying anything about pressure in the sump. normally the back flywheel seal goes 1st if I remember it right.
If the breather pipe is off and the oil still comes out, its not sump pressure.
omo
Herman
1952 Split Beetle 1835cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
-
- Donor
- Posts: 4973
- Joined: Wed Sep 14, 2005 9:24 am
- What model do you have?: 77 SP
- Location: Johannesburg
- Has thanked: 4 times
- Been thanked: 98 times
- Contact:
Re: Crank pulley leaking oil
I would then say you never take it over 5500 RPM.
Probably 95% of the motors I have built that can rev freely have struggled to keep the oil mist iside the crank case, additional breathing / sand seal or even both was the solution.
For what it's worth, ignorance has no limits ......
-
- Donor
- Posts: 4973
- Joined: Wed Sep 14, 2005 9:24 am
- What model do you have?: 77 SP
- Location: Johannesburg
- Has thanked: 4 times
- Been thanked: 98 times
- Contact:
Re: Crank pulley leaking oil
If you going to use this kit, get decent quality piping, what come in the kit is POS.
For what it's worth, ignorance has no limits ......
- John Alves
- Crankshaft
- Posts: 791
- Joined: Thu Jan 31, 2008 1:06 pm
- What model do you have?: 58Ghia 68bug68buggy
- Location: Cape Town
- Has thanked: 3 times
- Been thanked: 48 times
Re: Crank pulley leaking oil
Thanks all, will try a few things and let you know
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
- Tony Z
- Donor
- Posts: 14994
- Joined: Wed Sep 14, 2005 8:33 am
- What model do you have?: 2.3L 69; 1302; P/Van
- Location: Klipheuwel (near Durbanville), Cape Town or working at sea
- Has thanked: 192 times
- Been thanked: 487 times
Re: Crank pulley leaking oil
thats correct, it isnt a high revving engine.
The point is/was that it is bigger than stock, revs higher than stock and still has no breathing issues with a single pipe - thus indicating that a stock engine with oil/breathing problems has something wrong with it
ANGRRR
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=14775
1302S
http://www.aircooledvwsa.co.za/viewtopi ... 23&t=33521
Panel Van
http://www.aircooledvwsa.co.za/viewtopic.php?p=288723
vader wrote: The Force is strong with you young Sith Lord Z!
- fourier
- Oil Cooler
- Posts: 342
- Joined: Fri Sep 26, 2008 1:21 pm
- What model do you have?: '59 Ghia, '77 Beetle
- Location: Melkbosstrand, Cape Town
- Has thanked: 31 times
- Been thanked: 37 times
Re: Crank pulley leaking oil
Crank case pressure caused by ring blowby
OR
Someone line bored the case, and machined the nose of the case that will require an oversized pulley, but no oversized pulley was fitted.
OR
Undersized poor quality pulley
OR
Normal breather not functioning (not connected to source of negative pressure)
OR
Dirt blocking the triple-start thread on the nose of the pulley, preventing oil being returned into the case.
OR
Someone line bored the case, and machined the nose of the case that will require an oversized pulley, but no oversized pulley was fitted.
OR
Undersized poor quality pulley
OR
Normal breather not functioning (not connected to source of negative pressure)
OR
Dirt blocking the triple-start thread on the nose of the pulley, preventing oil being returned into the case.
(o= i =o) (o\ ! /o)
- John Alves
- Crankshaft
- Posts: 791
- Joined: Thu Jan 31, 2008 1:06 pm
- What model do you have?: 58Ghia 68bug68buggy
- Location: Cape Town
- Has thanked: 3 times
- Been thanked: 48 times
Re: Crank pulley leaking oil
pipe reconnected and I have noticed the motor has more power and runs smoother, will monitor the crank pully leak
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
- Donovan D
- Donor
- Posts: 2229
- Joined: Sun Jun 01, 2008 6:27 pm
- What model do you have?: 67 Panel
- Facebook: http://www.facebook.com/profile.php?id=536371512
- Location: Brackenfell
- Has thanked: 148 times
- Been thanked: 73 times
Re: Crank pulley leaking oil
Did you manage to sort out your leak?John Alves wrote: ↑Thu Apr 16, 2020 3:37 pmpipe reconnected and I have noticed the motor has more power and runs smoother, will monitor the crank pully leak
---------- 67 Panelvan -----------
---------- 56 Oval ----------
---------- 56 Oval ----------
- John Alves
- Crankshaft
- Posts: 791
- Joined: Thu Jan 31, 2008 1:06 pm
- What model do you have?: 58Ghia 68bug68buggy
- Location: Cape Town
- Has thanked: 3 times
- Been thanked: 48 times
Re: Crank pulley leaking oil
leak continued, removed motor and am busy with top end rebuild at the moment, heads were coked up badly, and lots of blow-by evidence,
I will check ring gaps
I will check ring gaps
No sense being pessimistic. It wouldn't work anyway.
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle
1958 1600 TP Karmann Ghia
1968 1600 TP Beamish buggy
1968 1500 SP Beetle