
The one potentially good thing out of the original project 1974 Super Beetle I bought is the engine.
From the initial inspection of the car in September 2017, it became apparent that it appeared to be about 95% stock original, with many of the original VW parts that people have removed and replaced over the intervening decades, including the US Federal Government mandated anti-smog components.
Now it wasn’t the more severe anti-smog components of a California vehicle of the same year, but the EGR valve was still intact (with modified tins) and the dashpot was still on the Solex 34 Pict 3 original carb.
The engine ran, but it was a little rough and did stall occasionally when going to idle, especially upon braking at a stop sign and so forth. If not in gear it ran very well.
When I first inspected the car, I checked what I could and of course, noticed the usual typical oil leaks and so forth around both the cylinder/case connection point, the push rod tube seals, as well as a suspected flywheel seal leak.
The one thing that was not stock original was the distributor.
A 1974 Super Beetle should have rolled off the factory floor with a 113 905 205AN DVDA (Dual Vacuum Dual Advance) distributor.
This was the one major thing missing from the car as it only had a generic 009 mechanical advance distributor on it.
It was also missing the EGR filter from under the tin to the exhaust, though all of the other EGR components were there.
I drove the car across half of Ohio and it ran ok. Not great. But it was functional.
Since the seller knew zero about air-cooled VWs, he could give me no info as to the last tune up or such, and by appearances and the way it ran I figured it needed to at least have some basics done.
I did an oil change and that’s when I realized how truly sludge like it was. I ran some engine oil cleaner in it to try and break down any deposits and did 2 oil changes again with some cheap stuff.
My son took it out for a bit and then we decided to run some Sea Foam in both the oil and in the air intake in the carb.
I really never used Sea Foam before but my son seems to think it does wonders. I really don’t think it does much, but I can see it working to loosen up deposits and crud in the oil galleries and oil cooler of a Type 1 engine so we ran some through and even did a bit through the carb.
After driving it for a bit I finally wasn’t really getting filthy oil of out of the car so I put in some of the Castrol 20W50 I typically run in my Beetles as well as some Sea Foam. I replaced the spark plugs and wires and left it at that.
A week later the first engine issues became immediately noticeable.

I got in to go drive to pick up my son and had the car die half way down the block.
It seemed to be an electrical issue and after a few days I determined it was the original black coil. Unfortunately, I was going to have my knee replaced so I figured there wasn’t much I could do other than order a new coil.
A few days after my surgery, I was back home but I could barely walk so I figured the car would sit over the late Autumn and Winter months. However, my son installed the new blue coil and got it running again.
I like to run my stored cars for 30 minutes every 2 weeks during the winter. I really don’t want them sitting for months and with both running, I knew I could have Mak just go out every 10 days or so and start them up.
Looking for simple 74 beetle wiring schematic. Henry. 6155853060 thanks
Thank you for the information.
Take care
Pete