[ Total Views: 1655 | Total Replies: 6 | Thread Id: 89280 ] |
|
bikecrazy
Casual Dubber
Posts: 24
Threads: 13
Registered: September 28th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
posted on March 16th, 2011 at 07:12 PM |
|
|
crankcase ventilation
i have discovered that vw's dont like having no air filter (read, it got excited and blew oil everywhere)
anyway i want to replace the air filter with something different hasanyone had experience with breather boxes do they help etc or is best to use a
sand seal and remove the ventilation system?
|
|
grumble
Son of Jim - Creator of Good
Posts: 2668
Threads: 53
Registered: June 10th, 2008
Member Is Offline
Location: Taree
Theme: UltimaBB Pro Blue ( Default )
Mood: happy all the time
|
posted on March 16th, 2011 at 07:35 PM |
|
|
The little oil bath air filter fitted to the VW is one of the most efficient units available,over the years I have seen a lot of sports filters fitted
in their place and the dust has got through and cut the rings out in no time. Whatever you use make sure that you still let the crankcase breathe so
the pressure doesn't build up in the case as this was more likely blocked off when the cleaner was removed.
|
|
waveman1500
Custom Title Time!
Also rides a Honda
Posts: 1346
Threads: 13
Registered: December 17th, 2009
Member Is Offline
Location: Adelaide
Theme: UltimaBB Pro Blue ( Default )
|
posted on March 16th, 2011 at 10:10 PM |
|
|
I generally tend to agree that if you've got a stock carburettor, then the stock oil-bath air cleaner is the best thing to use. They certainly flow
more than enough air to not restrict the tiny carb which is under there, and as mentioned they filter the air very effectively and serve as a good
place to separate out and collect oil from the crankcase.
|
|
68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
Beetle Restorer - Experience over 138% - YIKES --
Posts: 11654
Threads: 449
Registered: August 31st, 2002
Member Is Offline
Location: SCONE in UPPER HUNTER VALLEY NSW
Theme: UltimaBB Pro Yellow
Mood: Really Mentally Ill - all of the time -
|
posted on March 16th, 2011 at 10:32 PM |
|
|
Quote: | Originally
posted by bikecrazy
i have discovered that vw's dont like having no air filter (read, it got excited and blew oil everywhere)
anyway i want to replace the air filter with something different has anyone had experience with breather boxes ? do they help etc or is best to use a
sand seal and remove the ventilation system?
|
Hi
You Have to Vent the engine pressure out somewhere...
If You block off everything then oil will come out the dipstick hole... You need to get the case machined for a sand seal..
having a seal at the pulley would be great....
BUT
You still Need to let the pressure OUT....
I've thought about breather boxes.... and hoses to the tappet covers...
and they seem like a good idea....
if they are are set up correctly they should collect all the moisture that collects under the oil cap...
I did try a nice chromed air filter but have read that when tested, the VW oil bath air filter is the BEST....
NON Restrictive...
air flow is Excellent into the top of the carburetor...
I have seen many people go from chrome back to the genuine VW filter...
LEE
Error |
Sorry, you must be a registered user in order to download attachments. |
|
Error |
Sorry, you must be a registered user in order to download attachments. |
|
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
|
|
modnrod
Fahrvergnugen
Posts: 978
Threads: 50
Registered: March 17th, 2011
Member Is Offline
Location: Midwest, Westoz.
Theme: UltimaBB Pro Blue
Mood: Old School Volksies!
|
posted on March 17th, 2011 at 03:20 AM |
|
|
I used 5/8 hoses from the top of each rocker cover at the front into a breather box on the firewall, also put in the breather hose from the filler
stand. Used a push-in breather (shiny!), no more oil mist, that was on a mild 1640, and warm 2L Kombi panel.
If your engine starts spinning up past 5000, then you might need something a bit more effective. I've used these on hi-po bikes to great effect:
http://www.et-performance.com/normal.html
(Am I allowed to post a seller address here? If not, oops!).
For all the racers out there, yes they work brilliantly, and yes, they are MUCH more effective than just a simple PCV.
|
|
68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
Beetle Restorer - Experience over 138% - YIKES --
Posts: 11654
Threads: 449
Registered: August 31st, 2002
Member Is Offline
Location: SCONE in UPPER HUNTER VALLEY NSW
Theme: UltimaBB Pro Yellow
Mood: Really Mentally Ill - all of the time -
|
posted on March 17th, 2011 at 11:34 AM |
|
|
I have found that using 1/2 id hose...
that some oil is blown up the hose....
using even smaller hose was much much worse....
so 5/8 hose would be ideal....
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
|
|
vwo60
Veteran Volks Folk
Posts: 2036
Threads: 71
Registered: February 13th, 2007
Member Is Offline
Location: Pomona Qld
Theme: UltimaBB Psyche Blue
Mood: good
|
posted on March 17th, 2011 at 02:50 PM |
|
|
I run a centre mount K&N breather tower connected to both tappet cover's and ther breather outlet on the oil filler, motor is a 2054 and i never
have any issue's with crank case pressure, it run's 1/2" id hose and a sand seal.
Error |
Sorry, you must be a registered user in order to download attachments. |
|
|
|