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Mon Sep 08, 2014 7:52 pm

I have pulled my engine to do some maintenance and cleaning. I am confused with the engine code. The bus is a 1970 Westy with a dual port 1600. However, the engine code is an AS.

My research on Samba and other sites tells me this is not a 1970 engine case. Type2.com lists it as a super beetle original for 1973 on or sold over the counter as a replacement. Is there a way to narrow down the year this engine was produced?

Mon Sep 08, 2014 8:42 pm

The Technical Vin/chassis numbers table here shows it as a 1977
http://www.thesamba.com/vw/archives/info/chassisdating.php

Does it have a Venturi Ring on the Fan Air intake?

http://www.thesamba.com/vw/archives/dic/pix/venturi_ring1.jpg

Tue Sep 09, 2014 2:26 pm

Danwvw wrote: The Technical Vin/chassis numbers table here shows it as a 1977
http://www.thesamba.com/vw/archives/info/chassisdating.php

Does it have a Venturi Ring on the Fan Air intake?

No Venturi ring.

Is there any significance of it being a 1977 vs a 1970?

Tue Sep 09, 2014 3:38 pm

Not to thread jack but I am having a similar issue. My 70 Bay has a single port however the engine case has the following engine code (which was not on that list posted ^^)

U0484393

Wed Sep 10, 2014 4:10 am

7yrs newer + the much improved cooling if ALL the partsnr installed.

Wed Sep 10, 2014 4:21 am

Don't Freakout u guys,late cases have larger oil galley's big oil pick-up tube and cylinder stud inserts ( much nicer to enlarge the bore :wink: ),Madmike

Wed Sep 10, 2014 7:44 am

Dating an engine case will tell you virtually nothing other than the obvious. There are exceedingly few '70's era
VW's that have their original engines, and there are exceedingly few 70's era cases that are unmodified and
are matched with exactly the same components as they originally were.

Wed Sep 10, 2014 8:50 am

That's a bonus, late case with big oiling, nice!
The only time it matters is when you are buying internal parts like cams and oil pumps, for tune up specifications it doesn't matter what the engine number or year is because you go by what distributor and carb is installed.

Wed Sep 10, 2014 11:18 am

Thank you all.

Wed Sep 10, 2014 2:46 pm

I am going to change the oil for the (my) first time. Is the engine oil capacity different than what is listed in my 1970 Owners Manual?

Wed Sep 10, 2014 2:59 pm

Nope, still the same.