View original topic: Identifying a VW Engine?
JackC Sun Mar 07, 2004 6:52 pm

I need help.

I have a homemade dune buggy. The body of this Beatle has been cutoff. I want to know how to identify the engine and model of VW so I can buy parts.

I'd also like to know if there is a way to lower the gear ratio in the rear end of this VW? or, Is there a way to make low gear lower? I don't race or go very fast, too many trees for that. We just like to ride around pretty slow.

Thanks for any help.

nosmr2 Sun Mar 07, 2004 8:02 pm

What is the engine number? It should be stamped on the case, just below the generator stand. If you post that here I'm sure someone would look it up for you. The Chilton book also has them listed.

JackC Mon Mar 08, 2004 5:59 pm

Thanks Nosmr2. I'll check it out.

JackC Mon Mar 08, 2004 6:11 pm

Here's the numbers

On the driver's side: 12 178 57 and 113 129 709 G

On the passenger side: 15 515 K17 and 113 129 710D

turboblue Mon Mar 08, 2004 7:23 pm

Two of those numbers are for the intake manifold end castings. At least it is a dual port. Look at the numbers stamped into the case right below the firing order underneath the generator. Probably starts with "AE, AK", or something similar followed by some numbers.

JackC Tue Mar 09, 2004 4:58 am

Turboblue, Okay. I'll look again.

JackC Tue Mar 09, 2004 6:05 pm

How about: AE 452963 ?

That one was way down in there.

mrbajadude Tue Mar 09, 2004 8:53 pm

Hiya Jack, You have a 1971 model year engine case. Hope this helps. Ol' John 8)

JackC Wed Mar 10, 2004 5:36 am

Thanks Mr. BajaDude. This is a very sweet running little engine and I want to treat it right.

Do I need to start a new topic on the gear lowering question? I'd sure like to lower the gear ratio in this buggy.

Thanks again.

mrbajadude Wed Mar 10, 2004 7:44 am

Hiya Jack, You probably have an irs real end. You didn't say. If so, get an irs bus tranny with the lower gearing(5:38 from '68 thru about '72). Get Bugpack part #6539. That includes the tranny mounts and the shorter axles since the bus tranny is a little bit wider. Should costs about $225. Just find yourseld a good bus tranny and you're on the way. Good Luck with you project. Ol' John 8)

HamburgerBrad Wed Mar 10, 2004 11:19 am

if its a stock engine, a bus tranny isnt necessary. you can go to a place like Rancho or KCR for a type 1 transaxle. for the price of a stock bus box, you can get a beefy bug gearbox - also avaliable with the lower gear ratios.

HamburgerBrad Wed Mar 10, 2004 11:20 am

also, no modification to the mounts or axles is necessary

JackC Wed Mar 10, 2004 2:15 pm

Thanks folks. I really appreciate the info. We really enjoy this little buggy.

mrbajadude Wed Mar 10, 2004 3:59 pm

Hiya Brad, Yes a beefed-up type 1 with 4:56 gears(very weak) with welded 3rd and 4th, with super-diff with 4 gears can be built for around $700 or so. A good used bus irs box can be bought for as low as $50(up to $200) and another $225 still puts a guy in for a lot less cash outlay. Ol' John 8)

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