Porsche 944 Timing Belt Failure & subsequent results. Got a 944 Porsche 2.5lLiter 4 Cylinder. Unfortunately it has an interference head. Some mechanics tried to "fix" it not knowing what "interference" means. They replaced the timing belt and bent the valves even more. They gave up the 2nd time around. Good thing they never finished the job as it would not have worked anyway.
Porsche 944 S2 How to replace water pump, timing belts and shaft seals
нажмите CC и выберите русские субтитры
for English titles press CC
The video gives a tutorial how to replace the water pump, all belts and the
shaft seals on a Porsche 944 S2.
Das Video gibt eine Anleitung zum Wechsel der Wasserpumpe, aller Riemen und
der Simmerringe bei einem Porsche 944S2
Видео представляет наглядное пособи о
том как заменить водяной насос, все ремни
и прокладки уплотнения валов на Porsche 944 S2.
Cylinder Head 105 - Valve Job Basics
Valves not sealing? Valves not bent? This is how you fix that problem.
In this video I outline the basic valve job procedure. Cleaning the
valves, cleaning the seats, cleaning the combustion chamber and lapping the
valves in to make a better seal.
Here I cover the process start-to-finish. It's the same exact process for
pretty much all non-rotary combustion engines. It takes patience and
perseverance to do this job, but anyone can do it. Reference your service
manual for measurements and service limits. Everything else that's not in
your service manual is in this video.
I apologize for not having broken busted crap to work with in this video.
It's more beneficial to all of you when bad fortune falls on me because it
gets well documented, and many people watching these videos are looking for
answers. If you have bent valves, you will discover it quickly once you
chuck one up in the drill. You'll see the face of the valve wobble around
while it spins. You'll see evidence of this damage on the valve seat. If
it's bad, you may see damage on the valve guides in the form of cracks or
missing pieces where the valve guides protrude through the head ports.
Give all that stuff a good visual inspection. ...and if you doubt yourself,
never hesitate to get a second opinion or consult a machine shop. They
will have access to expensive tools that you wont find in your average
Porsche 944S 1987
Porsche 944S 1987.
• 2,5 litres
• 4 cylinders
• ca 190 hp
• 0-100 kph (0-62 mph) at ca 8 seconds (even ca 7 seconds according to
• top speed ca 230 kph (ca 140 mph)
The car is a joy to drive. Probable reasons:
• well balanced chassis (weight distribution ca 50% front and 50% back,
with engine in front and gearbox in back)
• direct and exact steering (like a gocart)
• lovely and responsive engine (with 4 valves/cylinder and double
I didn't have high expectations when I bought the car in the spring of 2010
from a friend that was moving abroad. (Who would have, with a 4 cylinder
Porsche?) But the car turned out to be possibly the only car ever that has
made me do a big smile while driving it. The car feels particularly well at
high speeds on the highway. It is in fact a true racecar made for the race
track. It may not go that fast, but it feels fast and is a lot of fun.
At low speeds the car may feel a bit "tired", and it is not always very
smooth to drive in the city or for parallell parking.
The video clip was filmed in the Stockholm area in Sweden during the summer
of 2011, and today (in May 2012) the car is almost 25 years old and has run
more than 280 000 kilometres (170 000 miles).
It was sold new in Germany in August 1987 and was owned there and in
Switzerland by an older lady (the car's first owner) for the first 17 years
of the car's life (from when the lady was ca 50 to ca 65 years old). She
was one of the better female amateur golfers in Europe and drove the car
sometimes around the continent to different golf tournaments. She didn't
want to switch to another car because she thought it was so easy to put her
golf bag in the back of this car. However in the end the gearbox failed and
she couldn't for example switch into reverse gear, so she decided then
finally to change car to a BMW convertible instead.
After that this Porsche 944S was sold and imported to Sweden (by a
temporary owner?) during the summer of 2004. The gearbox seemed to have
been fixed, because (after having been registered in Sweden) the car was
sold to an 18 year old man who owned the car for ca 1 year.
Then, it was sold again in 2005 to a 36 year old man who owned it for ca
And in the beginning of 2006 it was sold once again (a bad sign?), this
time to an older man in his 60's who owned it for 4-5 years. He bought the
car for nearly 60 000 Swedish kronor and spent nearly another 60 000
Swedish kronor on repairs for the car.
Among other things he:
• changed the clutch
• fixed the air conditioning
• changed to a new timing belt
• switched the outer part of the Exhaust pipe (because the older one had rusted)
When a new timing belt is installed, it must be tightened after a while.
But he didn't have time and was going to do it later. And then one day, the
untightened timing belt made the whole engine break down and a lot of it
had to be renovated and changed into functioning parts (for example the
head of the engine). The engine repair cost ca 20 000 Swedish kronor.
In 2010 the man decided to move abroad and wanted to sell the car. Then I
bought it for nearly 50 000 Swedish kronor in the spring of that year.
And to date (until May 2012) I have spent nearly 60 000 Swedish kronor on
repairs of the car.
The most important repairs were fixing an oil leak from the gearbox in the
back of the car, and fixing an oil leak from the engine in the front of the
To fix the gearbox, the Porsche garage recommended switching to a renovated
gearbox for 70 000 Swedish kronor. They said that the gearbox is so complex
and detailed, so that when there is an error somewhere it is no use trying
to fix it. Another garage (Speed & Autoteknik in the Stockholm area) said
they could fix the existing gearbox, and I decided to let them have a try.
Speed & Autoteknik seem to be very skillful at what they do, and are for
example cooperating with the well known Porsche 944 garage Sandéns
Bilteknik in Sweden. But is there a risk that the gearbox will cause
problems in the future?
Now, there are some signs that the head gasket of the engine must be
changed. That would cost 30 000 Swedish kronor (according to the Porsche
garage). The signs are a possible leak of coolant, possible oil in the
coolant container and white Exhaust.
But these are mere signs and doesn't mean for sure that the head gasket
must be changed. After all, the previous owner let the whole engine be
renovated (including changing the head) at Sandéns Bilteknik, so it would
be surprising if the head gasket would need to be changed again now. One
key question is if the car is actually leaking coolant. I will check the
level of coolant in the coolant container after a while.
(Footnote: Above, some amounts are mentioned in the currency Swedish
kronor. At the time of writing (2 May, 2012) the currency rate is 6.7209
Swedish kronor per US dollar.)
Timing Belt - the Forgotten Belt (by Dayco)
Timing Belt - the Forgotten Belt. This video stresses the importance of
checking and following the manufacturers recommended replacement interval
for the timing belt. Along with recommendations to replace the "hardware"
associated with the Timing Belt (Tensioner, Water Pump, and Idler Pulleys)
at the same time the Timing Belt is being replaced. To find out more
information on our Timing Belt, Timing Belt Kit, Water Pump Kit, and Timing
Component Kit, visit www.daycoproducts.com
Porsche 944 engine assembly - cylinder head
Assembly of the cylinder head for a Porsche 944. This is where I install
the valves, put the head on the short block, and put on the camshaft. If
you have a 928, just do this twice!
Changing your timing belt early can save you thousands!
Waiting until a timing belt breaks can mean the difference between a few
hundred dollars to replace the belt, and a few thousand to repair your
engine. David Rogers, the Monday Morning Mechanic, shows what can happen
when you don't replace your timing belt, and shows you how you can save
yourself some money by performing other maintenance at the same time!
Nordschleife Porsche 944 Turbo 8:06 min BTG
944 turbo S (chip tuned to about 270-280
PS). 16" rims. Toyo 888 with 225/50 in front and 245/45 in rear. tire
pressure cold 2,2 bar. KW Variante 3 Suspension. camera change at Mutkurve
and Pfanzgarten due to traffic. Mixture between the 8th and 11th round at
Nordschleife in real car. I have learned the track at Playstation GT5.
Porsche 944 12 sec run
My porsche on MC39 Dragrace where I manged to clock 12.089 on 1/4 mile with
201kmh trap speed.