crank pulley

bugzla Custom Title Time!

1,164 posts · joined Jun 2007 · 28 Oct 2013, 8:14 pm

#973881

does anybody have a pulley that doesn't leak

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 28 Oct 2013, 8:18 pm

#973882

often the case not the pulley, and if it's a daily, a steel hub pulley is best. If the case is worn, you might need to convert it to a sand seal

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

bugzla Custom Title Time!

1,164 posts · joined Jun 2007 · 29 Oct 2013, 6:45 am

#973906

to convert means to split the case again matt

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 29 Oct 2013, 7:58 am

#973908

Not necessarily, I have a Berg case cutter that does the job with the block assembled

http://www.flickr.com/photos/106809027@N08/10544423285/

[img]https://farm3.staticflickr.com/2830/10544423285_5af97708a6.jpg[/img]
DSCN3469 by mattberrymotorsports@y7mail.com, on Flickr

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 29 Oct 2013, 8:49 am

#973918

A leak around the pulley can also be due to crankcase pressure buildup.

Do you have all the appropriate crank case breathing in place?

colin Fahrvergnugen

984 posts · joined Mar 2007 · 29 Oct 2013, 4:51 pm

#973944

Craig Torrens wrote:A leak around the pulley can also be due to crankcase pressure buildup.

Do you have all the appropriate crank case breathing in place?

Spot on Craig.

Cheers Col

bugzla Custom Title Time!

1,164 posts · joined Jun 2007 · 29 Oct 2013, 7:26 pm

#973961

im putting vents into the covers as we speak

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 2 Nov 2013, 3:36 pm

#974254

bugzla wrote:does anybody have a pulley that doesn't leak

Hi
there isn't a seal there
just an oil slinger.. plus a thread that takes the oil back into the engine.. so there is a gap there..

they don't usually leak if you have a breather hose or pipe from the oil filler.. etc..[standard engine]

see the original generator/alternator stand and the pipe that goes down under the tinware plus a hose that goes to the air cleaner... these take the fumes out of the crankcase....
I have a hose going to the air cleaner and under the engine.

Non original type engines often have vents in the tappet covers and a breather box...

every time You get to a corner and take your foot off the accelerator .. You have back pressure in the crankcase...
if it cannot get out... then oil will come out of wherever it can... crankshaft pulley hole, dipstick etc...

so, You need a breather pipe or hose for the crankcase...
to release that pressure...

LEE

1 attachment · Log in to view

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---