welcome back to yet another episode with this see-through engine
in the last episode I was kind of cut short
because I've decided to do the last two scenes
where I bolt on the see-through head
and run the engine on gas and nitromethane on the dyno
I started it up and it ran briefly
but apparently there was so much electromagnetic interference
from the see-through had and all that spark energy
that it burned the crankshaft position sensor
the ECU was acting all weird
getting all sorts of weird signals
that's it the engine stopped and I had to end the episode there
I'm going to be picking up where I left off
I made a few changes and finally got it running
the first thing I changed was
I connected a large ground cable
from the block of the engine directly me to the negative terminal of the battery
I shielded the entire cable for the crankshaft position sensor
the next thing I did was take all of the ground wires from the sensors
and connect them to the sensor ground that goes directly to the ECU
and last but not least I rerouted the ignition cable
behind so we can get a nice clear view
inside the combustion chamber for the entire run
then magic happened
the engine started right up and I saw a more consistent powerful spark
then I have ever seen in the history of this engine
now that I have all that done
I'm going to Simply pick up where I left off in the previous episode
and try to blow this thing sky-high
so we can get some closure and sleep tonight
I plan on running it with multiple see-through heads
on gas and nitromethane regular timing and anti-lag
but before that since I already have this
since I already have this see-through head bolted it on from the previous episode
I'm going to do one run on this head Full Throttle on gas
with the dyno until it stops or something happens to the Head
I think we lost compression
nah it's losing compression now
okay so we're done let's take a look at this real quick
this electrode is already all loose inside of there
It basically melted the entire head already
it's liquefied look at that it's moving around inside of there
that's it for this head let's move onto the other design I have
and see what it does it already cracked the plastic a little bit here so
I guess that's it man super lame
whatever let's put another head on here and go for the gold
go for the full run
Okay so there we go I'm going to mount a brand new
see-through head
this is probably like the 15th head that I have made for this engine
all right it looks like this thing ain't going to start
I have been trying to start this thing so long
not it looks like I have damaged my drill
looks like I broke my pinion gear
man this is original Craftsman too
that's how I obsessed I have been with trying to start this engine
because it's such a tease if I go and turn the engine
even like this I mean the pumps start and while I'm cranking it
the injectors pulsing the pumps are running
the ECU is getting some sort of crank signal
but the spark is completely off it's sparking sporadically
it's misfiring here and there but I need to get through this episode
what I'm going to do is I'm going to use whatever we have left of this sensor
to still run this thing on fuel injection and let the ECU control
everything else and forget about the ignition timing
I'm just going to adopt the old Magneto style coil to the engine and adapt the sensor together
use the ignition coil to control the spark
and use the sensor to send the signal to the ECU to control everything else
got through this episode blow this thing up
I only have two scenes to go one on gas and one on nitromethane
and that's it
I'm all done setting this up I'm going to call this a hybrid system
I'm using the original coil from this engine in combination
with the EFI system the way this is going to work is
the original coil is going to take care of the spark
and ECU is going to take care of everything else
the moment of truth let's see if this thing is actually going to start
I mean it ran the RPMs were kind of jumping all over the place
so the sensor is definitely damaged
you know if this doesn't work now I'm literally going to abandon
this whole sensor idea and I'm going to go with something more Industrial
hardcore that we are able to put Sparks directly to the sensor
and have it still survive I'm not sure what that is but I'm going to figure it out
for now I'm just going to run it on this head like I originally planned
before this happened and go from there
missing not missing who cares I'm just going to Full Throttle it
and leave it there hopefully the sensor survives
let's see what happens something cool has to happen
and I have to be done with this episode let's do that next
It looks like we may have blew the head gasket
or damage this head I mean that was
definitely a pretty solid run that's for sure
this thing I ran for like what 2 minutes straight
and it was under load from the dyno oh yeah that brake is hot
finally I got this thing running that was an interesting run
I want to open it up and see what happened
I think we blew a head gasket
and I have some heavier Duty head gaskets
just to remind you this was the old head
oh what it wasn't a head gasket
it actually burned a hole hold on one second here comes its hot
look at that it actually burned a hole right in the head
that actually burn a hole right in the Head look at that
right through the bolt the bolthole
and look at this it looks like something
and looks like a piece of ice actually like a piece of melted ice
so cool so I'm going to bolt on this newer style head
and see if it lasts longer I mean at this point
it wasn't even the head gasket that went it was the head
and it even seems like this engine was using this head for fuel at some point
but this damage here
I don't know I'm thinking this might have something to do with
the temperature of the block
for the next run I hooked up a blower
and a giant hose to direct air
into the engine block and keep the engine block cool
that way the only thing that's going to overheat is this head
and what I'm hoping is going to happen is that this hat is going to get so hot
that is going to weekend the actual head
and we're going to get a nice maybe explosion
coming out of the top or something that's going to look visually spectacular
that's what I'm hoping for but let's see
that was pretty cool not exactly what I was hoping for
when I wanted to see what some sort of visual light show
like something blowing up or sparks flying fire or something
but that's not what happened
so let's take a look and see what did happen
and it turns out that the electrode there goes all my screws
the electrode heated up and kind of work its way out of the head
with the Heat and the pressure and just popped up
but this is the longest that I've ever had one of these heads last on this engine
in one runs so this was kind of impressive
that was definitely and Improvement
but yeah so I think the next thing I'm going to do is
oh wow look at you can see
it ate up the whole bottom side of the head
you can see that the engine started burning the head
as fuel up to the point that it lost the Electro
so that's where we got all those nice colors from
and it was still pretty interesting
now moving on next thing I'm going to do is
mount a new see-through head switch this whole thing over
from gas to nitromethane
and do the same thing to do one full run
with the Dyno on nitromethane and see what happens
hopefully we get more action than this
but if not it's still going to look cool anyway
wow that was fast
all right so that was a complete failure
it seems like the excess pressure from the nitromethane
just a literally popped the electrode right out
this is going to be my final attempt I just went all out
I just drilled a larger hole for the electrode and put a bolt in there
like a quarter-inch Bolt
and this is it this is my final attempt no matter what happens
let's see this is the end here we go here we go
my guess is it's going to blow the head out before the gasket
I mean the head gasket out before the electrode but who knows lets see
ahh that sucks the electrode came loose
look at that I know that wasn't what we wanted to see
but I mean this is 8 episodes of this thing already
how much more excitement can you get
so this is the end of this thing that's it it's over
so those were three failures in a row
with three different types of electrodes
I don't really know what happened because I ran this engine before
with that electrode and it blew the head gasket and did damage
I don't know what happened here maybe something changed but
like I said this was going to be my last attempt
and then I'm going to end this series right here this is the end
and saying its the End is probably the easiest part for me of this series
because this has been not only a mission but a serious Journey
building all of this and designing all of this
I never thought that this engine would make it this far
what is this episode already hasn't blown up
I genuinely tried and this has been weeks and weeks
of work just into just building this
I never thought it would come this far
but I wanted to thank like Briggs & Stratton especially for all of their support
AMP EFI I'm going to be using that EFI system in the upcoming episodes
for different engines like I said
this is not the end for this type of engine series
I know people love these but this is the end for this engine
this is going to be an exhibit now
and it made it to the end it was really
I don't even know what to say I never thought it would last this long
so that being said yeah thanks for all of my sponsors
and everybody who supported this entire series
they have been super awesome really helpful
and I couldn't end this without saying thanks to them
I'm going to have the second version of this engine coming up in another series
look out for the next one
anything that somebody wanted to see from this particular series
like the anti-lag and the knocking and the advance timing
and all that mechanical geeky stuff
I'm moving on to the new series
the second version of this see-through engine which is better
more reliable easier to start that's for sure
and yeah just better all together so it's going to be easier for me
if you haven't seen any of the previous episodes go back and watch those
THANKS FOR WATCHING see you soon