Desooting the intake preheating pipe of an aircooled VW
A blocked pre-heating pipe on a VW aircooled engine may be a major reason for stalling engines shortly after start, especially under humid and or cold weather conditions.
During the restoration of the engine it is quite often forgotten to decarbonize the pre-heating pipe of the intake pipe. You will certainly have heard or read about methods to 'decoke or desoot' this preheating pipe, whatever it is called.
I find it the easiest way to knock the preheating pipe with a hammer so that you 'generate' some trembling of the steel causing soot and rust to come off from the inside of the preheating pipe.
To ensure trembling (resonance) of the steel pipe you can better hold it in one hand and hammer it with your other hand . Do not tighten the pipe in a work bench since this will prevent the steel pipe to 'tremble'.
Knocking with the hammer may take about half an hour to gain a good result, so don't give up !! Do not knock too hard to avoid damages or dents in the pipe. Mind NOT to hammer too hard on the aluminium casted part either (which holds the intake pipe and the preheating pipe together) to avoid cracking of the aluminium. The video shows how much debris came out of this one pipe.
So this way of 'desooting' is worth doing in my opinion, rather than making holes in the pipe which have to be closed by welding afterwards.
Once the hammering operation is finished you can respray the entire intake pipe assembly with zinc spray so that is becomes a genuine look.
After re-installing the intake pipe on the engine you will notice that the left hand and right hand side of the preheating pipe will have the same temperature after the engine has been running for about 4 to 5 minutes from cold (or even in less time) !
Good luck !!!!
Alfred - Belgium
1967 VW Bus Engine Backfiring
I just reinstalled the newly cleaned intake manifold and generator - but
I've still got problems. After getting the thing to idle, and testing w/
WD-40, I suspect a vacuum leak in the right end casting. I will pull it
off and try to refit it correctly.
Check out my blog for more progress updates!
RADIAL ENGINE MADE OF AIRCOOLED VW-PARTS!
This 2086cc 7-cylinder radial engine is made of aircooled volkswagen parts.
The (mostly modified) used parts are cilinders, pistons, cilinderheads,
pushrods, bearings, valvetrain, oilpump and starter of a 1200 Beetle.
The engine has electronic ignition, fuel pump, and a double Solex 2 x 40mm
The rest of the needed parts are made by myself.
VW STROKER BUS ENGINE stroker 78mm x 92mm
WITH 5 QTS OF 30 WT ZINK- ENRICHED BRAD PENN OIL.. AND A ENGLE 110 CAM
WITH STRAIGHT CUT GEARS AND SOME 110 OCTANE WITH 4 GRAMS OF LEAD PER
GALLON. ITS LITE EM UP TIME... THE NEW BRAZIL FUEL PUMP IS A PIECE OF JUNK.
ITS WORTHLESS 3-1/2 POUND MADE IN THE USA ELECTRIC FUEL PUMP IS THE RIGHT
WAY TO START UP A NEW ENGINE. GUARANTEED FUEL DELIVERY WITH THE FLOAT BOWL
FULL.TEMPORARY CLEAR FUEL LINES TO WATCH FUEL FLOW HELPS .. I LIKE USING
RACING FUEL TO START NEW ENGINES BECAUSE OF ALL THE LEAD IN THE GAS.. IT
LUBRICATES AND KEEPS THE TEMP COOL ABOUT A 100 DEGREES COOLER. ONE SLIGHT
SETBACK THE CARB FUELNEEDLE SEAT WAS LOOSE AND WOULD NOT ALLOW THE BOWL TO
FILL UP.. A QUICK FIX WITH THE WRENCH AND PROBLEM SOLVED.. I SET THE TIMING
AT ZERO STATIC TO START.IM USING AN EARLY 356 PORSCHE DISTRIBUTOR.FOR A
NORMAL ENGINE. MECHANICAL WEIGHTS. WORK WELL WITH A ENGLE 110 CAM..THIS
THRU- BOLTED CENTER MAINSHAFT, AND AN ADRIAN 5/8 BALL BEARING PRESSURE
RELIEF VALVE. AS YOU SEE THE IDLING PRESSURE IS ABOUT 60 PSI. WITH A COLD
ENGINE.START UP . IT WILL STAY AT 40 PSI WITH A HOT ENGINE.. NOTICE IN THE
VIDEO YOU CAN T HEAR THE TAPPETS.. I NICE FEATURE WITH THE ADRIAN 5/8 BALL
BEARING SET UP.. THE TAPPETS ARE BEING FED A TON OF OIL AS IS THE
CRANKSHAFT . BUILT TO LAST ANY .STOP AND GO TRAFFIC HAS NO EFFECT ON YOUR
ENGINE WITH THIS SET UP. THIS ENGINE IS ALSO RUNNING A STRAIGHT CUT GEAR
SET.SINCE ITS A LOW RPM ENGINE I SET THE WASHERS IN THE MIDDLE CAM..I DONT
LIKE TO IDLE A NEW ENGINE SLOW ITS BETTER TO HAVE THE RPMS UP A TAD SO THE
CRANK CAN SPLASH THE CYLINDER WALLS..WITH OIL .BEFORE STARTING THE ENGINE
I REMOVED THE PLUGS AND CRANKED IT UNTIL I HAD 60 POUNDS OIL PRESSURE.. THE
PISTONS AND BARRELS WERE WASHED WITH SOAPY WATER ON ASSEMBLY. THE PINS GOT
LUBED . I RAN THE ENGINE FOR ABOUT 4 TO 5 MINUTES.. WITH A FEW START UPS
.. MAN IT SURE LIKES A LOT OF CHOKE TO START... ITS A LONG WAY TO THE SPARK
PLUGS... I ALSO USE GEAR REDUCTION STARTERS WORTH EVERY PENNY THE ENGINE
MAKES A LOT OF RESISTANCE FOR THE INN ITAL START UP... THEN GETS BETTER AS
THINGS BREAK IN.. THE OIL FILTER I USE ALLOWS ME TO REMOVE THE FILTER AND
CLEAN IT FOR RE USE.. THIS WAY I CAN SEE ALL THE SMEGMA ITS CATCHING . I
THINK IT WAS OVER A 140 DOLLARS BUT HAS LOTS OF NICE FEATURES..LIKE ITS ALL
ALLOY AND ACTS AS A COOLER ALSO AND YOU NEVER HAVE TO BUY A FILTER FOR IT.
WITH THE CB 1 QUART OIL PAN IT NOW HOLDS 5 QUARTS OF OIL TOTAL ... GREAT
FOR A BUS STROKER ENGINE WORKHORSE.GRUNT MACHINE.WITH THE 388 GEAR SET IT
WILL BE WORKING ON THE BOTTOM END. I WILL TEST THIS ENGINE AGAINST THE
CROSS FIRE INTAKE ON THE Dyno SOON AS ITS BROKE IN A
LITTLE..I HAVE MORE INFO ON THE SAMBA ON HOW THE ENGINE CASES WERE
PREPARED. THIS ENGINE ALSO HAS A SPECIAL DOG EAR THRUST FACE HARDENED
WASHER MACHINED INTO THE CASE FOR HEAVY CLUTCH WORK. ENGINE CASE
PREPARATION IS EVERYTHING .EVEN THE CYLINDER BARRELS ARE TRIPLE CUT ON THE
CASE WITH VERY TIGHT CLEARANCES.--ABOUT 2 THOUSANDTHS.PRECISION FIT. THIS
ENGINE WORKS OUT TO BE 9:1 COMPRESSION RATIO. PLENTY FOR TODAYS CRAP
REGULAR GAS.I ALWAYS USE A LITTLE LEADED RACING OIL IN ALL MY AIRCOOLED
ENGINES. MAKES A WORLD OF DIFFERENCE . BRAND NEW ENGINES GET 100 RACING
FUEL FOR THE FIRST GALLON OR TWO. THEN WEENED BACK TO 10% THE LIFE OF THE
ENGINE. NORMAL DRIVING YOU CAN USE AS LITTLE AS A COFFEE CUP FULL TO GET
BY.PER 10 GALLONS.. AFTER A COUPLE OF HOURS OF RUNNING OUT COMES THE OIL
CAUSE ITS LOADED WITH CRAP . ALSO A FULL OIL INSPECTION OF WHATS IN THE OIL
FILTER. WITH THE STATE OF THE ART MICRON OIL FILTER ON A FULL FLOW SYSTEM
YOU ARE LIGHT YEARS AHEAD OF THE GAME.. THIS ENGINE IS NOW A SINGLE RELIEF
OIL PRESSURE SYSTEM LIKE THE 356 PORSCHE ENGINE ONLY WITH 100 PERCENT
FILTERING OF THE OIL. TOMORROW I START RECORD KEEPING ON ALL THE VALVE
CLEARANCES FOR POSSIBLE CAM SHAFT PROBLEMS OR VALVE STRETCH. LEO
Classic VW Engine Rebuild, By Last Chance Auto Restore.com
We began with a dual port 1600 cc engine from a 1973 Volkswagen Beetle.
The engine ran with a miss and was smoking a bit . After performing a
compression test,(both wet and dry) , we determined the crankshaft and
bearings were fine.
We replaced the pistons, pots & rings. We had the valves redone and made
several upgrades along the way.....
How to remove an air cooled engine from a VW campervan
Subscribe now: http://bit.ly/1kx9wXx
Rob Hawkins follows Herbie Hospital removing a two litre air cooled engine
from a VW Bay Window campervan. The work involved is similar to removing an
earlier engine with a taller fan housing.
Welcome to the home of Practical Motorhome on YouTube - Britain's best
This channel will give you regular videos, from inspiring travel guides to
'van and product reviews, friendly technical guides and more, all you need
whether you're a first timer or a lifelong motorhome fan.
Follow us on Twitter: https://twitter.com/pmotorhome
+1 us on Googlge+ : https://plus.google.com/+practicalmotorhome
Like us on Facebook: https://www.facebook.com/practicalmotorhome
VW, CROSS FIRE,OIL INJECTED,MANIFOLD HEATER, AND OIL COOLER
THIS IS THE FINAL DESIGN AFTER OVER A YEAR OF TESTING. BESIDES A 10%
increase in HP, the manifold is now oil injected to eliminate any chance of
carb icing at any cold condition and benifits the engine by cooling the
oil and is returned to the valve covers where is again mists to cool the Exhaust valve stem and springs at this
point its about 100 degrees cooler. They are made in batches of 10 units
..they flow fuel extremely well and will work on any vw upright.including
buses and ghias. with clearance to spare.the runners are 1.1/4inch in
diameter .. and flow 1900 meters. of air .. more that enough for any
engine.made... really big engines flow about 1400m . No special alt or gen
brackets are necessary ..this manifold fits perfectly. Deposits are taken
by the oldest recieved first They come in silver ceramic coating only the
price is 575.00 dollars with a 100 percent refundable 100.00 dollar
VW Beetle TDI soot cloud monster
1999 VW beetle TDI that was driven by an old lady. after Timing belt,
Intake cleaning and injection quantity adjustment, I took it out and blew
all the accumulated soot out of the muffler.