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914World.com _ 914World Garage _ AO engine code

Posted by: toddb67 Sep 28 2008, 08:45 AM

I have a 1975 914-4. I checked my engine code the other day and saw that it was AO23451. I tried searching the 914 technical database but it doesn't even list an "AO" code for an engine of any year. I figured maybe somebody put VW type IV engine in the car but thesamba.com does not list an "AO" code for any VW's either.

Does anybody know what the hell engine I have? I was told by a previous owner that the WAS a 2.0 liter car but now I'm not so sure.

Posted by: Mark Henry Sep 28 2008, 08:58 AM

VO is euro 914 could be 1.7, 1.8 or 2.0
AN is the high CR 1.8 914

AN and AT are 1.8 411/412 engines.

New replacement cases had no number so a PO or wrench could have put any old number on it.

Posted by: 914Sixer Sep 28 2008, 08:59 AM

I checked my information and I do not show an AO. There was an AN case for 1.8. Bus shows a AW for 1.8. There was a VO case that was magnesium for Europe. Does it have 3 bolt intake or 4 bolt? 4 bolt would make it a bus.

Posted by: Mark Henry Sep 28 2008, 09:01 AM

QUOTE(914Sixer @ Sep 28 2008, 10:59 AM)

4 bolt would make it a bus.

Not if it's a 1.8

Posted by: toddb67 Sep 28 2008, 09:16 AM

I just went to the garage for another look and found an "F" in front of the "A". Oops! That makes it FA023451. I still do not see an "FA" engine code in the system. It looks like a factory stamping, and it is a 4-bolt intake. Anyone?

Posted by: r_towle Sep 28 2008, 09:24 AM

Clean the F with a tooth brush and see if its really an E

Rich

Posted by: Mark Henry Sep 28 2008, 09:38 AM

If Rich is right it's a 1.7 from a 914 or T4 (411/412)

Posted by: Dave_Darling Sep 28 2008, 09:51 PM

It's gotta be "EA" and then a zero. 72-73 1.7 liter.

--DD

Posted by: toddb67 Sep 29 2008, 06:08 PM

You guys are good. Yes, it turns out that its a "EA" case. But I have the rebuild sheet so I know it has 1.8 pistons/cylinders in it along with a vanagon hydraulic cam. It sure runs great and has enough power for me. Thanks for the replies.

Posted by: davep Sep 30 2008, 01:06 PM

So, the engine was originally a 1.7L from Feb 1972.
Most likely a 1.8L now if the piston are 1.8 size.
A Vanagon cam would not be ideal for making power though.

Posted by: toddb67 Oct 1 2008, 12:40 AM

It's got good low end power but really falls flat on the top end. But, I don't miss adjusting valves every 3000 miles!