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JeeWee
Samba Member
Joined: February 05, 2011
Posts: 120
Location: Garijp, the Netherlands
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 Posted: Sun Jun 03, 2018 1:12 am Post subject: WW oil vapor barrier any effect on engine case breathing 36hp |
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I am running a 1192cc 36hp engine with a WW okrasa kit, and also installed their oil vapor barrier.
As the engine now has it maximum hp at roughly 4500 while an original 36hp is achieving that at roughly 3600. (see dyno sheet: https://www.thesamba.com/vw/forum/album_page.php?pic_id=1682081)
I also installed the WW oil vapor barrier, which goes into the oil filler neck.
I have some doubts regarding this part, according to me it will limit the engine case breathing because the plate is working as a restrictor.
on a standard 36hp which is slowly driven it will work ok but what about an okrasa engine which is frequently driven hard.
Who has any experience with this barrier in relation to tuned 36hp engine case breathing? Or any advise?
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1192CC WW okrasa
48,2 DIN PS (58SAE HP)@4430rpm - 83Nm@3610rpm |
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60ragtop
Bonneville Belt Bitch
Joined: March 13, 2006
Posts: 7800
Location: Big Wonderful WYO 82401
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| Posted: Sun Jun 03, 2018 5:28 am Post subject: Re: WW oil vapor barrier any effect on engine case breathing 36hp |
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I installed that on my engine but I also used vented valve covers like this
No problems with breathing cruising at 80 MPH
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Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986
| tasb wrote: |
I've restored a large number too, but I don't toot my horn quite as loud.
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| sb001 wrote: |
maybe he just snapped cause his car sucked  |
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JeeWee
Samba Member
Joined: February 05, 2011
Posts: 120
Location: Garijp, the Netherlands
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| Posted: Tue Jun 05, 2018 8:47 am Post subject: Re: WW oil vapor barrier any effect on engine case breathing 36hp |
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Honestly I had to look twice to this picture to see what is vented. but now I do see that there is a pipe running in the middle, starting from top and exiting in the bottom of the valve cover. Have you made that yourself? Or was it an accessory back in the days? It looks pretty easy to weld that on, what is the pipe diameter?
anyone else remarks on the oil vapor barrier? I guess you will also be able to run without and not have leaking, as it was not originally designed with this part.
_________________
1192CC WW okrasa
48,2 DIN PS (58SAE HP)@4430rpm - 83Nm@3610rpm |
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sgmalt46
Samba Member
Joined: April 20, 2005
Posts: 1296
Location: south san francisco
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| Posted: Tue Jun 05, 2018 9:20 am Post subject: Re: WW oil vapor barrier any effect on engine case breathing 36hp |
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it works great. it was a original part on 25hp motors. when they added the draft tube to the oil filler they stopped using it.
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55 deluxe 23 window bus
64 crew cab
55 rag top beetle
66 beetle
71 square back (sold) ! good luck with it Henry!
46 beetle 552nd royal army service corps CCG |
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60ragtop
Bonneville Belt Bitch
Joined: March 13, 2006
Posts: 7800
Location: Big Wonderful WYO 82401
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| Posted: Tue Jun 05, 2018 9:31 am Post subject: Re: WW oil vapor barrier any effect on engine case breathing 36hp |
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I made my own, link to directions in this thread
https://www.thesamba.com/vw/forum/viewtopic.php?p=3183534
_________________
Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986
| tasb wrote: |
I've restored a large number too, but I don't toot my horn quite as loud.
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| sb001 wrote: |
| maybe he just snapped cause his car sucked |
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Big_E_Deluxe
Samba Member
Joined: September 23, 2013
Posts: 264
Location: Charlotte, NC
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JeeWee
Samba Member
Joined: February 05, 2011
Posts: 120
Location: Garijp, the Netherlands
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| Posted: Tue Jun 05, 2018 11:44 pm Post subject: Re: WW oil vapor barrier any effect on engine case breathing 36hp |
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cool, I will take your advise, I'll make a set of those valve covers. I have thrown out the WW oil vapor barrier, with a proper alternator gasket I am sure it will not leak, just install it properly.
I have 8mm copper (cunifer) lines which I will use as well for my fuel lines, currently in progress to convert to Zenith NDIX... can't wait to hear it running and dyno'd.
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1192CC WW okrasa
48,2 DIN PS (58SAE HP)@4430rpm - 83Nm@3610rpm |
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