all right so what we have here is two halves of the Subaru 2.5 I block and what you'll find is
that your cylinders are numbered 1 3 2 & 4 right now I am sizing the Rings for the system this is
piston number one for cylinder number 1 and if you look on top right there you can see there
is a little bit of a gap and we want to make sure that that gap is correct spec which is why we have
this manual which I lined up printing off anything to the top ring which is the one I'm spec'ing out
right now it's supposed to be between point 2 to point 3 5 millimeters so we take our gauge and
this one is 0.35 6 I'm going to go ahead and try it out that's the gap right there and it will not
fit in there I've got the ring fit squarely and it will not go in this is point three five six the
largest it can be as 0.35 so that's a good sign I'm just going to go ahead and jump down to point
two five four millimeters which is the size and that it's in between so the bottom now it still
it's a little bit and a little bit of grab it now it's a little bit of grab so my tells me this
isn't spec nowadays it is a 1 millimeter maximum limit this gap can actually be a full millimeter
clearly if the Rings touch and that is not going to be in spec okay four here I've got the top
rings all put about halfway down into the cylinder squarely pushed in with the piston and I have made
sure that they are within spec using the feeler gauge and I've done them all at the same time
because you have to keep flipping through the damn feeler gauge so you want to do them all at one
fell swoop now I'm going to go ahead and do ring number two or the second ring and go ahead and put
them in all the Pistons and make sure there's a different spec is correct on those all right now
I've got ring number two just just set just on the inside there and what you want to do is you want
to make sure that that is square and that it is kind of towards the middle of this cylinder the
reason being because most of your movement happens right in here so we want to make sure that that is
square in this we're going to take our piston and just go ahead and take that in and can you just
feel it to make sure that it's about felt square and in the center and this is what we have there
is our gap and this has its own spec 0.37 2.5 - so I'm going to go ahead and do this for all of
them now I've got the second ring in all of the cylinders and I measure that gap now we've got
the specs and this should be just a little bit bigger and I'm going to just go ahead and check
and that won't slide up in there same with them since that one and this one
those are just a little bit smaller and we're right underneath the upper threshold so this
might slip in and we've got nice tight tolerances that alright still just a little bit smaller
alright just a little bit smaller and there I'm feeling it start to get a little bit if
I push make it might make it a little bit on angles and that's a point four five seven
millimeters so that's right in the middle and it's getting tight go down to point four three
two and I presume this is going to start sliding in between these guys be real tight that one's
real tight and fit then alright and the point 406 feeler gauge and this is where it's going to
start just lighten in there I'm going to height a little bit tighter than all the rest of them
and if I go down any further than this I'm going to get into hot dog down a hallway territory so
we're just going to continue on here we have the completely assembled piston with all the rings I
started this thing being naked working my way down from the bottom put on your expander oil
rings first and then the bottom oil ring and the miss slice shopping oil ring on top of it and that
gives you focus I believe in you that gives you that nice you can see this little I can get my
pointer you can see there is a little tab that keeps that top ring from spinning and they put
a pretty good amount of pressure on the expander rings next you are going to put your second ring
on and then finally the top ring now the top ring and the second ring you want them to be
you want the gaps to be 180 degrees opposed so here I have the gap and the gap on the other side
alright guys and there we have it four Pistons with properly expect
rings sitting in father respective cylinders there's three one two and
four and of course this is going to be mated with this pretty soon that's all for tonight