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January 2002: Working on 305 parts:
) ) Now,
it is time for the old 305 to give the missing parts like intake manifold,
HEI distributor, Q-jet carb, exhaust manifolds.
I begin by removing the hood.
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) ) ) Then,
I remove the Q-jet and store it with the hood. |
) ) ) Next
step, taking off the intake manifold
(As soon as I succeed to unscrew the unreacheable bolt...) |
) ) Some
inside views of what was going on under the intake manifold...
Ark, very very cloged by tar carbon deposits and tar or shoe polish. Now, I DO appreciate to have bought a NEW engine (how to clean this mess?) |
) ) A
view from intake and heating ports, you can admire how dirty are the valve. |
) ) ) Up
or down, this intake manifold is a dirty one.
Even the ports are dirt... |
) ) I
put a washer to set the play at 0.005" like explained in the "bible".
You can see it behind open at the right page... Then I do some cleaning on the distributor, |
) ) I
take off the heat shield that is supposed to prevent oil to burn on the
heated intake.
Well, it's a carbon mine! |
) ) And
now the nicest part:
cleaning the manifold from this kind of shoe polish that years have put on... I'm surprised to see how hot water and washing powder can be efficient. |
) ) ) Like
I've done on the heads, I put a intake gasket on the manifold to see if
some adjustements have to be done:
Bingo! |
) ) The
upper views are ports 5-7 and 1-3,
and these are 2-4 and 6-8 ports views. |
) ) ) Aluminium
porting job is waaaaaay more easy than cast porting ;o). The problem is
that it's too easy!
You can dig a hole without notice it before it's too late. |
) ) ) Porting
in progress, lot of material gone. |
) ) ) There
are adjustements to do under the carburetor. |
) ) ) Rounding
sharp angles and very rought surfaces to soften are the main targets.
The intake manifold begins to have a better look... |
) ) Even
it is not supposed to have much gain on performances, I spend some time
on the appearance.
It looks better than new (Anyway, I don't know how it looked when it was new...) |
) ) I
planed to stop the heating system. This will bring some improvements by
increasing the density of the mixture.
First, I grind a place to receive the future plug by enlarging the exhaust circulation port. In a paper, I cut the exact plug's shape then I can draw it on an aluminium sheet |
) ) Once
I've made the plug, I put it in the hole enlarged before.
I tap nicely with a hammer until it fits exactly. Aluminium is nice to work. I 've also done a plug for the other side. |
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