|Emergency Breakdown Kit
A recent inquiry addressed "What should be carried in a
Porsche to get going after a break down? All cars need a few basics, starting
off with flashlight, batteries, first aid kit, road flares, a clean rag or two.
As for Porsches there are some
special things that are required to do the simplest things. The Porsche Tool Kit has
screwdrivers, wrenches, tow lug. etc. and the basic special tools for that particular
model. The most common 911 tool kit item needed is the fan belt tools and the replacement
belts.. You are going to need those tools to change the belts.
The first thing you need to do is find out
what you have. Start by checking your owners manual. If you dont have one start
right there and get one. This is a great reference for finding things and understanding
how they work.
Fuse and light bulbs are a good item to carry
along in a small box so as to not break the bulbs. Fuses are necessary for replacement not
only when they blow, but before. Fuses that look wavy and bent are very worn out from the
high current flowing through them. Discolored or corroded fuses should be replaced as
well. Carry a spare fan belt in a sealed plastic bag (this slows ozone deterioration).
Why not carry a tool box in your Porsche?
Those small hardware store specials are all yon need or use one of the goodie bags from a
parade you have attended. What to put inside?
- An adjustable wrench. 10 inch
- A set of 7mm to 19mm wrenches.
- A small socket set 3 to 17 mm.
- A ½" drive 19mm deep socket.
- A ½" dr. Breaker Bar & a 4" extension.
- A Fuel mixture Allen wrench for 1973.
- A small mirror
- One fuel nozzle
- A hex key wrench (Allen) 2 thin It) mm.
- A Tube of Bosch Ignition Grease (Great stuff for any lubrication use)
- A Spark plug socket and a 3" extension
- A Spark plug connector
- A Spark plug
- A small roll of Electricians tape
- A Red Relay for Fuel Pump or 3-4 Fan
- Belt shims.
- A small knife.
- A small capsule of Coins
- A assortment of nuts, bolts, washers.
This is a pretty good list of things I carry in my own 911. 1
rarely ever need to use them but I like to know they are there. Note: The little plastic
bottles that come with your new roll of film are good containers for your small parts. If
they are not see through, put a label on them.
Fan Belt Replacement on a 911
The first thing to do before
changing a fan belt is to gather the tools. Do you have the fan pulley holder tool? This
item is necessary to remove and install the fan belt. Replacing the fan belt on a 911
requires the tool kits fan nut wrench to remove the fan pulley retaining nut and the
holding tool. This is a steel flat bar about 13" long and has a half moon cut
out to fit around the fan pulley hub with two holder pins (65-77). The
1978-79 holder has a single hook pin. If your 911 tool kit does not have these basic
tools, get them. Your dealer can order the exact ones as can Porsche Catalog Suppliers.
When replacing the 911 fan belt you will
remove the fan pulley nut by holding the pulley with the holding tool. As the nut loosens
the dome washer behind the nut will loosen also. As the nut, dome washer, and the pulley
are removed you will see some shims behind the dome washer. You will also see more shims
on the other side of the fan pulley. There are usually six total. These six shims are
necessary to set the proper tension on the new belt and correctly space the pulley. Start
with three on each side of the pulley. Use a little BOSCH grease in each shim to get them
to stick together. New belts are a little stiff and you need to carefully slide three
shims on the fan post. install the new belt and hold it against the fan while installing
the outer pulley against the belt. Carefully engage the fan post. Next place the other
three shims over the fan post . The
dome washer and nut are fitted next. Slowly screw on the nut using the finger tips, keep
the shims centered behind the dome washer. If any portion of the shim is showing it is not
fitting over the fan post.
As the nut is taking up slack and stretching
the belt into place, rotate the fan itself. I like to hold the nut with the wrench and
rotate the fan, thus tightening the nut and centering the dome washer, shims and pulley
all together. If everything is ok, the nut will come against the pulley and shims firmly
and tighten up with one or two threads showing past the nut.
Check to see if the tension is lightly firm on
a cold engine and on a warm engine time belt should flex 3/8 at mid point. Rotate the fan
with your wrench and look and feel for smooth even movement. The fan pulley must turn
parallel to the fan . No wobbles - no problems. If the belt is too loose you
need to remove the nut, dome washer. outer shims and pulley. Remove one shim from the
inside and reinstall the fan belt, pulley, the four shims on the outside of the pulley,
the dome washer and nut. Reinstall everything as before and check the tension.
On the 1978 and later cars owners are
cautioned as those fan pulleys are smaller in diameter and can break at the area around
the small holes just out from the mating area of the dome washer. Look these over
carefully for any warping or cracks. If the pulley is not perfect, replace it. For
78 and later it is advisable to carry a spare pulley in your tool box.
Screaching Disc Brakes
Ive never had quite such a problem with screeching
brakes as Ive had with the 930 Turbo brakes. These brakes have a large four-piston
caliper made of a very hard aluminum alloy and are rigidly mounted to the suspension.
After I installed these brakes on my 68 911 Turbo car I started encountering squealing
upon every brake application. I went through every trick Ive ever learned - all to
no avail. These tricks included truing the discs. Ive tried hard pads and soft ones,
Wedge grinding the leading edge of the pads. Gluing the factory metal insulators on
different pad compounds. Applying that blue silicone goop on the back of the pad where it
contact caliper pistons. I even tried using silicone grease on the pad backing plate. It
didnt help. Some of these fixes did improve things for a while but they never came
close to a cure. The parts suppliers and the dealers told me that the turbo brake is the
most difficult to help. Note I didnt say fix. I tried their recommendations and the
brakes still squeaked!
So what is this new Tech Tip? Well at one of my local auto
parts store where they sell "Bars Leak", they also have something called
"Stop Brake Squeal" from QUALITEE International Parts. It is a set of heavy
aluminum coated foil shims with a SCOTCH-3M Hi Temperature Acrylic self-sticking back. The
retail price is around $4.50 a set. So. having tried everything else I reasoned why not. I
installed a set of these on my Blue 911 since last November and only heard a chirp or two.
I have driven in all the rain storms this year and used the brakes in earnest more than
once-these brakes really work, no wonder they adapted them from the 917. So as of June
1998 This fix is a winner!
Lee Rice writes the monthly Technical & Safety column for the
Orange Coast PCA (zone 8) Newsletter. He has
generously allowed Pelican Parts to republish these articles here for the benefit of
everyone who visits the site.