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How 2 Wrench
167 followers
Sep 26, 2024
In this video, a pro tip targeted towards entry-level technicians or the do-it-yourself technician
in the assembly process of engines, subcomponents like carburetors, or possibly even that piece of
furniture that you need to assemble. The pro tips I'm going to demonstrate in this video
are meant to reduce the possibility of human error, omissions in manuals and documentation.
It creates some opportunities for you to question, modify, or continue on with the assembly process.
I hope this video helps you. Make sure and like, share, and subscribe. Let's get into it.
Hey friends, Shane from HowToWrench.com and I want to share with you a little pro tip that
will really help you when you start to assemble a project. I tell people a lot that
preparation is the key to success and not having some of the human factors that fall into place.
What I like to do is spend some time with the service manual, not in the shop, but at a
comfortable desk and start to look up a bunch of the specs that I know I'm going to need.
I've got a bunch of cylinder head torque specifications here, camshaft stuff, spark plugs,
oil, drains, capacities, valve clearances, compression. I always like to do a compression
test after work to verify life is good, right? Then coolant, all kinds of things like that.
But where I see a lot of people can get into trouble is one of two ways, is they're going to
spend no time in the manual or they spend all their time chasing just the general information
and you're going to miss some stuff that you need. You're not going to find everything in
that general. This is really for very, very, very seasoned technicians and I still feel that you
should review the procedure all the way. It's definitely something we do in the aviation
industry, is you always use the entire SOP, you don't use cheat sheets.
So why am I using a cheat sheet? Well, I'm doing a cheat sheet more as a reference guide
of where these pages might live in the manual, just to make things a lot more familiar. So when
I grab my torque wrench, I can go to just set it quickly and then reference back to the exact
procedure as needed. So let me point out a couple of things here. So let's look at, if I came into
the general torque values and I looked at torquing the cylinder head, they're going to give me the
numbers, but you also see quite often that you're going to see where they tell you notes, right?
So if we go down here and we look at this note two, the note twos tell me to put sealant. If I
see a four, it's telling me to put oil to the threads, which I should have on a cylinder head.
I would expect to see some oil required to be around those cylinder head bolts, right? So if
I take a look here and I get to cylinder head torque, okay, I find here that it says, okay,
go to 45 and 33, no notes. Okay. Keep that in mind. That's going to be really important.
Now, as I go back to the service manual and I get into the procedure, that should surprise me
as a seasoned technician, because it's quite common that we apply oil to the cylinder head bolts as we
go to torque that down. But Hey, let's see what Honda has to say about that. So if I get into
cylinder head notes here, and this is another great place where I can find that firing order.
And then you can see, I made myself my own little cheat sheet. So as you can see here,
this little reference to me is the left side of the engine forward and back. And that'd be my
firing order to match this, that they just have turned on their side. So let's get into the part
for, and you'll see this a lot in service manuals where they'll have the torque specs here. They're
showing things, some call outs. This one here is just referencing the next page where it gives the
numbers there, but let's get into that. So here's those cylinder head bolts, right? And we have the
same numbers we saw before 45 and 33, but notice we have something different now. Now we have this
little oil can saying to oil under the head and oil the threads. Okay. There it is. It's saying
that right there. So that should be like, whoa, what's going on here? If I get into the procedure
itself, let's just fast forward to that. And you're going to see here now specifically tells me apply
oil to the seating surface and the threads, and then tighten in this pattern. And that was the
thing that I was mentioning that you really want to go to the SOP or standard operating procedure,
if you will, of the actual assembly to get everything you need. There's those same torque
specs again. It's also going to be very important on the order of this because you have different
diameter bolts. We got six millimeter and then we have some nine millimeter. Well, if I torque the
six millimeter and then torque the nine millimeter in particular orders, one's going to come loose.
So it's really important to do that order correctly. And you'll notice here it, well,
maybe you wouldn't know nine and 10 are those little six millimeter ones. Actually it's called
out right there. You're going to notice they're the last ones to get torqued, right? So very important
that you use all your resources. And then another thing that I find to be really useful
is while I'm in here studying the manual and going through things, I'll just snap some photos
on my phone, which go into my cloud. I'm on Apple products here. And this is really cool. If I want
to go back to some reference stuff, this was the valve cover gasket where it gave some points to
put sealant. And maybe I want to be able to just zoom in. There's a neat little indicator on the
sand in for the intake side. That'll be interesting to look at. And then other little references like
this washer has an up designation so that you put it in the right way. And then I can go through
here. There's that screenshot from that page earlier that I said was really useful to study.
Actually it was this one. And I just grabbed a snapshot of it so I could go in there really
quickly, access this information. But my friends, that is my pro tip for how to organize yourself
before you even get into the shop is get really familiar with the procedures. I do not recommend
or like if you're ever one of my students or an employee of mine, if you were reading this
on the bench as you were assembling it for the first time, that was a big no-no. You want to
be familiar with the process. And then when you go do it, be able to execute that, like I said,
with that familiarity. So that is my pro tip of the day, my friends. If you haven't done so,
make sure and like, share, and subscribe. Make it a great day. And as always, keep wrenching.
