Thanks everyone of those have been asking different questions lately. For the benefit of all the readers, I thought of posting them here with supporting pics off from my '75 Beetle Workshop Manual.
General model identification info:
Good luck n Happy Beetle Motoring!
Keep Buggin!
Thursday, August 28, 2008
Friday, August 01, 2008
How to keep your "Silent Partner" happy?
Transmission
Your gearbox does plenty of work, changing up and down many, many times when you drive. It needs lubricating just like the engine, but less often. The recommended time is every 30,000 miles. That's a lot of miles, but considering how old your Beetle is, there's a good chance it needs doing if the previous owner never did it or not having any maintenance records.
Transmission Oil
GL-4 vs GL-5 There is a debate between many users of what API rating to use. My personal analysis is best to go with SAE 75W-90 Fully Synthetic.

And when doing, once you remove the Drain plug; make sure you clean all the dirt, sludge/metal grind its collected there in the center magnate.
Your gearbox does plenty of work, changing up and down many, many times when you drive. It needs lubricating just like the engine, but less often. The recommended time is every 30,000 miles. That's a lot of miles, but considering how old your Beetle is, there's a good chance it needs doing if the previous owner never did it or not having any maintenance records.
Transmission Oil
GL-4 vs GL-5 There is a debate between many users of what API rating to use. My personal analysis is best to go with SAE 75W-90 Fully Synthetic.

And when doing, once you remove the Drain plug; make sure you clean all the dirt, sludge/metal grind its collected there in the center magnate.
Sweet Sixteen - In need of 'Power n Performance' (Part III)
For a long time I’ve been thinking of an engine upgrade and was looking for options. One fine day a sweet deal came in my way thru a nearby mechanic. An imported re-condition engine to swap with mine + balance money.
Its 1500CC as the mechanic said, but having the engine code AD, Dual port, 34 PICT3 Carb, 200mm Clutch n Pressure plate; it has to be a 1600CC.
Combined with my other mods, the thing is near flying with an amazing fuel efficiency. Can’t wait for the next road trip!
Last year trip pics - http://picasaweb.google.com/vwbeetles.lk/Trip10thTo13thDec07

Its 1500CC as the mechanic said, but having the engine code AD, Dual port, 34 PICT3 Carb, 200mm Clutch n Pressure plate; it has to be a 1600CC.
Combined with my other mods, the thing is near flying with an amazing fuel efficiency. Can’t wait for the next road trip!
Last year trip pics - http://picasaweb.google.com/vwbeetles.lk/Trip10thTo13thDec07
Wednesday, July 16, 2008
DIY - Rocker Cover Breather Vents
You must’ve noticed a little drop or two (maybe more) of oil on the floor off your engine after a hot run. Why?
When you run @ high revs the pressure generates inside the engine also gets high. The breather line goes to stock oil bath Air Filter off the Oil Filler isn’t sufficient to handle that and it tend to leak the pressure thru Pushrod seals.
Overcoming this, to relieve the excess crankcase pressure, I had to come up my own custom design coz there aren’t off the shelf parts available in SL.
Noticeable benefits are,
No messy oil leaks. Smooth n faster throttle response. Slight reduction of oil temp.


When you run @ high revs the pressure generates inside the engine also gets high. The breather line goes to stock oil bath Air Filter off the Oil Filler isn’t sufficient to handle that and it tend to leak the pressure thru Pushrod seals.
Overcoming this, to relieve the excess crankcase pressure, I had to come up my own custom design coz there aren’t off the shelf parts available in SL.
Noticeable benefits are,
No messy oil leaks. Smooth n faster throttle response. Slight reduction of oil temp.
Friday, July 11, 2008
In need of 'Power n Performance' (Part II)
"Mean stock machine"
When I bought my 4th luvbug two years ago, a ’73 Jeans Beetle she had D code 34hp 1200CC engine. But to get more power out and also to run economically, I did her few mods...- Standard oil ignition coil replaced with a dry coil.
- Bosch WR8AP Platinum spark plugs.
- Mallory SPRINT WIRE® 8MM YELLOW SILICONE JACKETED plug wires.
- Stock oil bath air filter replaced with a cone filter.
- Doghouse oil cooler.
- 7/16” Rocker cover breather vents.
- Modified equal length single out exhaust - Spiral flow muffler (1.5” tubing, 2” collector, 4” muffler out)
- RPM/Oil Temp/Volt Meter Gauges.
Tuesday, July 01, 2008
In need of 'Power n Performance' (Part I)
By all means of nature, everyone loves power. Motoring enthusiasts will not be any different. Probably they’ll end up being the top most people of that list. In fact I don’t think anyone would possibly can prove its the other way instead, no matter how much argued... but gotta keep in mind,
“With great power there must also come — great responsibility!” – Stan Lee
So I've started to work on first things 1st...
But finally I ended up with a totally unique design n few pics are shared below.
“With great power there must also come — great responsibility!” – Stan Lee
So I've started to work on first things 1st...
“Breaks”
The inspiration, ideas, energy etc... I got from the book “How To Modify Volkswagen Beetle Chassis, Suspension & Brakes for High Performance” (Speedpro) - James HaleBut finally I ended up with a totally unique design n few pics are shared below.
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