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70Crew Samba Member

Joined: June 12, 2006 Posts: 780 Location: Grand Rapids, MI
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busdaddy Samba Member

Joined: February 12, 2004 Posts: 52782 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Mon Jun 06, 2016 12:40 pm Post subject: Re: Single port cylinder tin question |
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They should, VW put them in everything, only EMPI thought they weren't necessary. _________________ Rust NEVER sleeps and stock never goes out of style.
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Слава Україні! |
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70Crew Samba Member

Joined: June 12, 2006 Posts: 780 Location: Grand Rapids, MI
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Posted: Mon Jun 06, 2016 3:54 pm Post subject: Re: Single port cylinder tin question |
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Logic tells me they should, but I am being told that they were just on the dual port cylinder tins. I looked at all the tins in the classifieds and think that might be correct, although busses or the 1970 SP might have been different than earlier models. Does anyone have a 68-70 SP bus cylinder tin the can look at to verify this? _________________ 1970 Crew Cab |
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murdoch44 Samba Member
Joined: January 06, 2004 Posts: 62
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Posted: Mon Jun 06, 2016 5:29 pm Post subject: Re: Single port cylinder tin question |
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I have a single port from a 69 apart. I am pretty sure it is stock and I can't find anything that resembles vanes on the tins that cover the cylinder heads. If you need a pic, I can post one up in the morning. |
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busdaddy Samba Member

Joined: February 12, 2004 Posts: 52782 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Mon Jun 06, 2016 5:34 pm Post subject: Re: Single port cylinder tin question |
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I'm going to go look too, I'm starting to second guess my original answer. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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airschooled Air-Schooled

Joined: April 04, 2012 Posts: 13486 Location: West Coast, USA
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Posted: Mon Jun 06, 2016 5:55 pm Post subject: Re: Single port cylinder tin question |
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I've never seen them...
With the dual-port heads flowing more cool intake charge, VW diverted cooling air to the exhaust valve sections of the heads where it was needed. Since the single port head has more physical "meat" around the intake valve area, I personally think that the stark difference in temperature between the intake and exhaust valve was far less localized, thus not needing the vanes.
But I'm 1 for 1 in dropping valve seats on dual port engines WITHOUT the vanes.... Maybe I overthink it.
Robbie _________________ One-on-one tech help for your vintage Volkswagen:
www.airschooled.com
https://www.patreon.com/airschooled |
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busdaddy Samba Member

Joined: February 12, 2004 Posts: 52782 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Mon Jun 06, 2016 6:38 pm Post subject: Re: Single port cylinder tin question |
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My stash of OG SP tin is buried so I'll defer to Robbie who's been under the shroud of a SP more than me lately, too much DP action apparently. Damn, getting old sucks  _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
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wcfvw69 Samba Purist

Joined: June 10, 2004 Posts: 13682 Location: Arizona
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Posted: Mon Jun 06, 2016 7:56 pm Post subject: Re: Single port cylinder tin question |
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Out of curiosity, I just looked at my stash of original German single port cylinder tin. They don't have the vanes in them like the dual port ones. _________________ Contact me at [email protected]
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40+ years of VW repair, and VW parts and vehicle restoration experience.
The Samba member since 2004.
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70Crew Samba Member

Joined: June 12, 2006 Posts: 780 Location: Grand Rapids, MI
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Posted: Tue Jun 07, 2016 3:08 am Post subject: Re: Single port cylinder tin question |
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Thanks! _________________ 1970 Crew Cab |
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