I need to change out a crank in my 292 how hard is it?

 

It can be a hard or an easy job, it depends on whether you have an engine hoist and it's best done on an engine stand, and i can already tell you it will be 5 times easier if you pull the engine and transmission out together as a unit and un bolt the exhaust manifolds at the heads, and if you only change your crankshaft, remember that Yblock weighs about 600 lbs, you will need a heavy duty engine stand. But what makes you think you need to change the crankshaft, it can't be turned? Or what is wrong with the one you have? Whatever you decide i can guide you through this job, if you want me to, this is up to you. I have successfully done two Yblocks. But it's up to you if you want my help

Janet

 

the flywheel/ring gear bolts came loose and ground down the bolt holes on the grankshaft...

 

No flywheel ring gear has bolts, nor could it cut crankshaft cap bolts...Sorry!!!...Janet

 

Well now, J40 shows how brilliant she is by reading the
problem incorrectly, again...

The job, in itself, is not difficult, with the right tools, anything
can be done. The real question is if you have the experience to
do the job as an "inframe", or need to take the engine out, inframe
may be a little more complicated, but it will be easier...

SteveL

 

Canzus, crankshafts can be turned inside the frame. but i can assure you that a ring gear that came with flywheels due to have tack welds and take weld points take welded and layded on a flat service, it is only the flywheel withought the flywheel without the ring gear that bolts to a rear cranckshaft flywheel that can bolted to the bolts on the back of the flywheel, and ring gears have no bolts holding them on, the user stated they needed to change the flywheel ring gear, this method is best done ot of vehicle...Lets not be negative on proper procedure...have a nice day....Janet

 

Huh?

 

Here we go again? Looks like a replay of last summer!

Kevin Bigwin

 

If the bolt holes are not too badly messed up it might be possible to go a size bigger or a threaded insert, without removing the engine. If unable to "rebuild" the bolt holes it would be best to remove the engine to replace the crank.

 

Hmmm... Not much of a mechanic, are you J40?
but thats not that much of a suprise is it? You
been drinking again??

Flywheels don't have welded ring gears, flex plates
do have welded ring gears, do you know the difference??

SteveL

 

Janet planet.....

 

We can all share practical easier ways to gt things right, sharing ideas gives people easier and save timing issues that work sometimes even better

No harm is done by learning ones talents, i have many hobbies i adore. A Ring gear tack welded to a flywheel would break before harming the machine bolts that hold on the flywheel to the back of the flywheel..On plug wires if a little room is allowed, it only gives one tme to arrange a good fit.Janet

 

Maybe you should stick to your adorable hobbies, you sure ain't helping here...



However, when a bolt that holds the flywheel to the crankshaft is
either over tightened, or under tightened, there is a very good
possibility that it will loosen, and knacker the threads in the
crankshaft and also knacker the holes in the flywheel as well,
but of course, you knew that, but decided to keep it a secret
from us all, didn't you???

Stevel

 

This is what happened....
The fly wheel bolts came loose and ground down the crankshaft and made the holes egg shaped, so all I want to know is, How do you take out the crankshaft while the engine is in the truck still or would it be easier to take out the engine? And how do you take out the Crankshaft?

 

It depends on how well you can torque the main caps while
laying on your back...

Inframe- Pull the tranny, the bell housing, the clutch cover, flywheel,
then put the bell housing back on. Drain the oil, disconnect the oil pump
pickup tube, pull the oil pan, check the rod caps for numbers, no numbers,
go to your FLAPs and purchase a set of number stamps, stamp numbers
on the rods and caps, pull the rod caps, pull the balancer and front cover,
stamp the main caps with number stamps, pull the main caps. Crank should
fall on the ground...

Installation is reverse of removal...

SteveL