Volvo Engine head porting / port matching prep work !
Music : Mr oizo and Gaspard Augé "tricyle express"
Step two in the project :
Gasket matching is a good way to improve the flow in your head (engine
heads only) and to avoid the bad turbulences where they are not supposed to
be : between parts.
It's the first step in your porting job that you should think about ,and do
with your brain and hands.
The castings patterns are often quite "bad quality" (or i should say the
consequence of the application of a mass production process ) and it's the
way to start this kind of job.
1973 Volvo 1800 "Competition Valve Job" Stage IV 1.4
Here is the sequence of the valve job, and what it takes to get perfection.
I Decided to go "THREE ANGLE" largely do to the "BATH TUBE" shape of the
chamber. Most use a 30 degree angle thinking it banks off the chamber walls
to go into the bore EASYER, not so here. All this work (6 hours in all)
just for a valve job? NOT!!! It is the airflow and the valve job together
that helps the Positive pressure reach the EMPTY SPACE of the bore, and the
valve angles TURN THE MIXTURE so it can reach it.
Volvo 740 valve adjustment
This car and it's and owner are very special to me. Back in the day, they
called this car a 7 passenger Ferarri. I remember the funny Volvo TV ad's
comparing both cars. It is a 1988 turbo
Volvo 740 2.3 liter 4 cylinder with mechanical shim and bucket valve
adjustment discs. Very simular to the older 1.6 liter VW water cooled
engines like the Rabbit and Scirocco. This Volvo has 272k miles on the
clock, 155k miles on a rebuilt engine and rebuilt head without any valve
adjustments. I rebuilt the entire engine in 2003. Recently the idle quality
became rough and spark plugs started to foul when the two front cylinders
valve seat and valve wear absorbed the valve lash clearances to almost
nothing. This car belongs to a very special client. She'll never know how
many hours I have invested in keeping this turbo Brick going.
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44:30 Offroad vs City Look
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1:00:45 Safety Features
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My Volvo 940 GLE
Will pick her up in the next few weeks.
2.3 DOHC Auto w/overdrive
All leather seats
Does not come with owners hat on back shelf
a problem with my head?
yes ok, i admit it, i broke it. but it is only the one valve. atleast you
get to have a look at the engine as its been torn down a bit, i have got
lost of clean shiny and painted bits to go on and make it lovely