7-Bolt Shortblock Failure - Full Diagnosis
If you are your own mechanic, there is no more important character trait
worthy of development than the ability to own your mistakes. That's where
the line is drawn between good mechanics and bad mechanics. It's not the
failures but how they deal with them that measures their ability.
In short, it's not easy to admit you did something wrong or were negligent.
But if you don't own it and talk about it, it doesn't get fixed, and
nothing positive can come from it. It was my quest to overcome my clutch
issue that lead to the creation of a video. That video is the textbook
perfect guide for how to correctly install a DSM transmission.
Crankwalk as described is caused by a casting defect. This was not a
defect. This was preventable. A lot of people would find something like
this and not tell anyone out of embarrassment. I'm not ashamed. It's my
fault. I got good use out of this engine and it was tough enough to make
it 48K miles since the last rebuild despite my abuse. I'm here to tell you
if you bought a used car that's had its clutch replaced, or if you ever pay
someone else to do it... make sure it has this bolt. It's stashed away
between the starter and the transfer case, so it's hard to see. Make sure
all of your bell housing bolts are torqued properly because fastener
problems can destroy your shortblock, clutch and transmission. If your car
fails because of a mis-aligned transmission, you have no reason to blame
It wasn't until I bought my next AWD car that I discovered there was a
smaller bolt on the other side of the block. I destroyed 3 transmissions
in the GSX first. With the damage already done to my crankshaft, I then
lost a shortblock. It's an ounce of prevention that's worth metric tons on
your bank account.
Grade 10 M8x60 bell housing bolt = MD706012. It gets 22-25'lbs of torque.
Owning my mistake permits me to learn from it through con$equence$, and
never repeat it. What good would it have done anyone else for me to learn
this lesson and not share it? That's why I'm providing this video to all
of you. Sharing it can perhaps help someone else avoid this costly
mistake. This is the final chapter for my 7-bolt, and this book is going
back on the shelf.
Here are some valuable resources if you're trying to read bearing damage:
And of course, now that I've covered the complete oil system, transmission
and driveshaft series of videos, you now have all the tools necessary to
ensure your 4g63 lasts a very long time. Whether the casting defect
exists?... or it's all caused by a bolt, or the harmonics, or whatever...
Sure, crankwalk exists and it's horrible. But with the small amount of
movement required for your crankshaft before it contacts the block isn't
far enough to make your clutch drop to the floor when you turn. You'd be
hearing woodpeckers and jackhammers on the crank long before that clutch
pedal would fall to the floor. Some people are going to hate on me for
saying that. That's fine. I believe all of the people who experienced the
clutch pedal issues had fastener problems on their bell housing.
DSMs get a bad reputation for this but we can change that. Crankwalk is
never the cause of your engine failure. Crankwalk is always a symptom of
the real problem. It's your disease that makes you deny it's your fault.
You've got the 'itis. DSM-itis.
Whenever you dig deeper, you'll discover what applied all of those thrust
loads to your crankshaft to begin with, and it's not going to be a casting
defect that moves your crank .101". Mine only went .014", but all of the
same parts failed.
PLEASE tell me in the comments if you find this bolt is missing from your
Learn About Subaru Boxer Engine Technology
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Cylinder head rebuild EJ25D
my first attempt at rebuilding a Subaru cylinder head. i may not be perfect
but at least i didnt have to pay someone to do it for me.
454ci Windsor Short-Block Build-Up
Outlaw Motorsports shows us how to build a 454 cubic-inch Ford Windsor
short-block using a Ford Racing Z351 aluminum block, Eagle rotating
assembly, and custom JE pistons.
Subaru WRX EJ205 Rebuild Part 1
Anthony @ DIYautotech taking you on a Multi-Video Series of how to rebuild
a factory subaru impreza wrx from top to bottom.
This video features accessory removal & tricks and tips on custom ways to
remove certain parts WITHOUT the use of EXPENSIVE factory subaru tools.
Hyundai Elantra 4g63 Shortblock Assembly
HOLD ON TIGHT! HERE WE GO!
We begin the blueprint and assembly on my 1992 Hyundai Elantra's
bastardized 4g63. The parts used in this are from a mash of different
brands and models outside of the typical 2.0L 4g63, but the specs and
standards I am following for its assembly are for the 2.0L DOHC.
If you want to follow along in your service manual to verify what I've done
here in this video, the processes we cover here detail pages 11C-95 through
11C-105 of the 1g Overhaul manual. I would prefer you not rip them from
the binding and throw them away, relying only on this video for
instruction... but rather use this video as a motivational guide, and as a
demonstration of the techniques involved in those sections.
You gotta do the cooking by the book.
I never had any intention of making instructional videos on this particular
car, but after it blew up I slowly realized it's actually a better case
study for how a 4g63 ticks than anything else in my driveway. There are
several reasons for this. One being that it's a mix of parts that
shouldn't be bolted together, and the other is that many of you watching my
videos aren't trying to build a 600hp engine out of aftermarket parts.
You're trying to put back together what used to be your daily driver. This
car covers those bases. Don't think for a second I won't go through this
same trouble and level of detail for the GSX. I will. When I do, having
this information in this video will give you a better understanding on how
and why I do things the way I do when I get there.
This was the shortest I could condense this video. I've never uploaded a
video this long, and I hope I never have to do it again. It took a month
to create on cutting-edge equipment, 16 hours to export, and 9 hours for
YouTube to process. My script for the voiceover is 6 times longer than the
whole script for the movie Pootie Tang. 6 times. Longer. Than a
Subaru Short Block Benefits
Mark Sadowski of P&L Motorsports, 3847 Carnation St., Franklin Park, IL
60131, discusses the benefits of replacing a blown 2005 Subaru Motor with
an OEM shortblock, and the procedures involved in performing the engine
The Worlds best car tuning disasters and engine failures II - Caught on tape
Wow its tuning disaster II Time
More of the webs greatest tuning and high performance engine failures --
you can push and you can push your tuning, but sooner or later some things
Top 30 all-time tuning failures - close your eyes and watch through your
fingers this is very scary stuff, more breaking engines and bank balances.
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2005 Subaru Outback Engine Replacement
This is my 2005 Subaru Outback with the old engine removed. I'm talking to
a mechanic at P & L Motorsports in Franklin Park, Illinois about the
procedure to replace my ruined motor with a new short block and rebuilt
Fiat 500 with Subaru engine
This is a Fiat 500 modified by ZCars Ltd to the specification of a customer
from Greece. The design brief was to fix his 500 in an interesting way so
that it would have more useable power to enable him to drive his family
around town in comfort. Whilst he was tempted to have the Suzuki Hayabusa
conversion ZCars also produce he decided that he wanted to keep the rear
seats. As that is where the 200bhp motorcycle would be installed that
option was ruled out!
The engine is an EA81 Subaru engine (1800cc flat 4) which is quite an old
engine although still widely used as an aviation engine we are told. This
engine was used due to its simplicity, power and torque characteristics and
not least its size and shape. This was mated to the original gearbox with
clutch and drive shafts up rated. Also up-rated were the brakes with discs
all around and the suspension at the front. The transverse leaf spring was
removed and adjustable alloy dampers were used with coil springs. A new
front subframe was fitted to allow the use of wishbone suspension arms.
Obviously as it is a water cooled engine, radiators were required. This was
inserted into the front boot space (trunk) and water pipes run underneath
the car. A new stainless steel Exhaust
finished the conversion and new wheels and tyres were fitted as an optional