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How to pull your engine
by Rob Kuhn
One of the beauties of the air cooled
VW's is it's simplicity. No special tools are needed to remove the engine from
the Type-I (AKA: The Bug/Beetle).
All you need:
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A floor jack (at least a 3/4 ton).
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A pair of jack stands (4 point rather than 3 point).
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Some wood blocks to chock the front tires.
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A drop light.
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Wrench and socket set (SAE and Metric).
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Screw drivers (both flat/slotted and Phillips).
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Pliers, vice grips and a hammer.
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Torque wrench.
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Penetrating oils (ie: Liquid Wrench).
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Rags.
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Shoppe/Repair manuals (more the better!).
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Zippy bags and a permanent marker (I like to place small things in the bags
and write on the bag so I know what they are and where they go).
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Patience ... take your time!
Whatever your reason for removing the engine, you'll be pleased to find that
it's a snap. I feel that a true VW geek has to at least do an engine pull and an
engine installation at least once in their life. It builds more confidence, more
understanding about the VW, a better appreciation on it's simplicity and, of
course, the pride and bragging rights that go into saying that *YOU* were
the one that removed and then later re-installed said engine in the back of your
pride and joy.
Though what's to follow will focus mostly on the stock Type-I (manual,
automatic, carburetor and fuel injected), Ghia, Bus and other non Type-I's is
basically the same.
One of the neat, and unique, thing about the air cooled VW's is that the
engine is lowered out the bottom instead of the out the top like all other cars
in the world. Since the engine is lowered out, all you need is a floor jack ...
no engine hoist needed!
Make sure you're parked on a nice level surface and have ample room to move
around. If you can enlist the help of a friend (or your spouse), it will make
yanking your engine that much easier (bribing them with beer or lunch is usually
all it takes).
You can drop the engine with the fan shroud still bolted in. I find that
having the fan shroud still on the engnie makes it easier as I can hang on to
the shroud as I pull the engine and lower it to the ground. I have to admit ...
a Baja Bug was probably the easiest engine pull I have ever done!
In the steps to follow, I will try to make the task of engine removal as easy
as possible by having you remove as few things as possible. I am also going to
assume that you know a little bit about VW's in general (ie: you do your own
tune-up and oil changes). As I stated earlier, removing the engine is not as
hard of a task as it seems. If after reading this page you still don't feel
confident, there's no shame in having a shop or someone else do it for you.
If you have questions, a better way (ie: short cut) or if goofed up somewhere
below, please
lemme know!
So, without any further delay ... PUT THE CAR IN NEUTRAL AND LET'S START
YANKIN' THAT ENGINE!
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I like to remove the engine compartment lid, but you don't have to.
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Drain the oil.
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Disconnect the battery cables (I like to remove the battery from the car and
trickle charge it, but you don't have to).
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Chock the front tires and jack the rear up as high as high as the jack stands
will allow.
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Put the tranny in neutral.
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Remove the air cleaner.
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Disconnect the wires from the generator/alternator as well as the from the
ignition coil:
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On 1961-1966, the voltage regulator is mounted on the
generator (assuming that you're still running a 6V engine and have not
converted to 12V with alternator); disconnect the small wire and mark it
61. Now disconnect the large wire(s) and mark it B+51. And
finally, disconnect and mark the wires that are on the ignition coil.
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On 1967 and later, disconnect the three (3) wires from
the generator or alternator (assuming that you don't have an alternator with
a built in voltage regualtor), be sure to mark where they were. Now
disconnect and mark the wires that are on the ignition coil.
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Now disconnect the oil pressure switch (this is located on the crankcase under
the distributor).
Ok, the next three steps apply only to
carbureted engines
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Disconnect the automatic choke wire and the cut off
jet solenoid on the carburettor. Mark them accordingly.
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Disconnect the throttle cable to the carb.
If your engine is fitted with a throttle
positioner (which is usually found on 1968 thru 1972 manual shift models),
remove it. It's pretty easy to do; remove the vacuum hose(s) and the screws
(usually 3) and it should "fall" off.
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Disconnect the fuel line off the copper tube leading to the fuel pump ... be
sure to plug the line so it doesn't leak.
The next two steps apply to the fuel injected
models
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Disconnect and mark the electrical connections:
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Throttle valve switch.
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Intake air sensor potentiometer.
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Injectors.
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Cold start valve.
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Cylinder head temperature sensor.
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Auxiliary air regulator.
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Yank the fuel return line off the pressure regulator and the injector
distributor pipe and clamp the end to prevent any leakage.
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Now climb underneath the car and pull off the flex heater hoses, disconnect
the heater control cables (located near the two lower engine mounting bolts).
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On 1974 models, you will need to disconnect the push-on connector between the
TDC sensor in the right crankcase half and computer diagnosis socket.
The next five steps apply only to auto stick
models
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Disconnect the electrical wires from the control valve mounted on the left
side of the engine compartment; be sure to mark it!
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Disconnect the two (2) vacuum lines for the control valve from the carburettor
and intake manifold, or intake air sensor (whichever your engine has).
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Disconnect the line between the fluid reservoir, which can be found under the
right rear fender, and the oil pump at the union nut. Be sure to seal the
line with a spare union nut which has been blocked (ie: solder).
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Disconnect the oil pressure line between the oil pump and the torque converter
at the union nut. Be sure to position the line so it doesn't leak!
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Now remove the screws securing the torque converter to the drive plate.
Hand turn the engine with the fan belt until each screw is accessible
through one of the transmission case openings ... then remove the screw.
The remaining steps apply to all models unless
specified otherwise.
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On 1961-1966 models, remove the rear cover plate. Do this by disconnecting the
hoses between the fan housing and heat exchanger, typically on 1963-1966
models, remove the fan pulley cover, and preheater pipe sealing plates ...
remove the screws (six, I think) that secure the rear cover plate and then the
plate.
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If you have the stock vacuum advanced distributor, you can either remove it or
just loosen it and turn it inward to provide more clearance. In either case,
be sure to mark it's setting with a chisel or punch. I just remove it (after
marking it, of course).
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Remove the lower engine mounting nuts (17mm).
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Slide your floor jack under the engine and raise it so that it contacts the
center bottom of the crankcase. I like to place a piece of 3/4 inch plywood
board (about one feet square) between the case and the floor jack ... it helps
me balance the case when it comes time to lower it, but this is up to you.
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Raise the jack up high enough so that there's slight pressure on the engine
... not too much, we don't want to tweak the mounting bolts/frame.
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Here's where your bud comes in handy (if you were fortunate enough to enlist
one) ... have him/her hold the upper engine mounting nuts with a box wrench
while you unscrew the bolt from underneath the car. The nuts are behind the
fan shroud; you will have to feel around as you can't really see them. But,
they are the only 17mm nuts back in this area, so that will help in
identifying them. If you're doing this solo, then you will have to get
somewhat creative ... I tend to hold said nut with a vice grip.
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Roll the engine straight backward until the clutch release plate clears
the main drive shaft (and you'll know when it does because you can *feel* it).
Having the fan shroud still on the engine makes a nice thing to hold onto at
this stage of the removal. Do not let the engine tilt when backing the
engine out, you could bend the main drive shaft which would be a bad thing.
For this reason, it's nice to have an extra set of hands to help balance the
engine as you're backing it out.
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Now lower the engine slowly, making sure that the clutch release plate remains
clear of the drive shaft.
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If your model is an automatic stick shift, secure the torque converter with a
retainer plate. I believe you can get one from your local VW parts store.
Ok, your engine is now out! That
wasn't so bad or hard! Installation is in the reverse order.
Here's the tightening torques:
|
foot-pounds
|
mkg
|
Oil drain plug |
25 |
3.5 |
Oil strainer nuts |
5 |
0.7 |
Entine mounting
bolts |
22 |
3 |
Torque converter to
drive plate |
18 |
2.5 |
Crankshaft pulley |
29-36 |
4-5 |
Generator/Alternator
pulley |
40-47 |
5.5-6.5 |
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