BLOWN ENGINE???

[fiero1]

 ???AS YOU ALL KNOW I SOLD MY GT LAST FALL @ BEEN KICKING MYSELF IN THE ASS EVER SINCE.WHEN I SOLD THIS CAR IT WAS RUNNING LIKE A SWISS WRISTWATCH.THE GUY CALLED ME LAST WEEKEND TELLING ME HE BLEW A ROD ???ANY IDEA WHAT HE POSSIBLY DID WRONG I HAVE A PRETTY GOOD IDEA MYSELF BUT I NEED TO KNOW IF IM ON TRE RIGHT TRACK.......

[JetJumper]

He was pushing the motor to hard.  

[GoFast85]

Run the engine out of oil by pushing the limits and you will have a blown engine. ALL engines will use oil at high rpm's  

[FieroBUZZ]

LOL!  I have Adam's parts car (Tercel) here with a big hole in the block, and his friend's car has the same hole  

Something with going beyond the limits of the motor.  

If it helps, he's not the first and won't be the last.  BTW, Chris how did you know that?  Lesson stuck in your brain, I see.  Your dad will be happy.

Jonathon McC may still have the 2.8 he had for sale in the parts section.
Gary

[2ML67]

All I can say is what possible better reason for a swap than a blown overworked engine. A 3800SC or a Northstar wouldn't of blown. Well maybe it would but a lot harder to do. ++++

[GoFast85]

I still have a 2.8 out of an 85 SE for sale in my shed.

[aaron88]

my new computer has a rev limiter.  This would have likely saved that poor underpowered 2.8.  6600 rpm, not bad for a V8.

I think he was revving over redline, or for too long at redline.  All the oil gets sucked up to the top of the motor the pan goes dry for a second, the motor sucks air, then game over.

Of course I could be wrong but I'm sure that nobody here disagrees with me when I say that the motor blew because of a healthy little abuse problem.

But I agree with Dan.  This is the perfect time to upsize that motor.  McD’s does it with your fries for just 50 cense.

Aaron

.

[BootMachine]

"I think he was revving over redline, or for too long at redline.  All the oil gets sucked up to the top of the motor the pan goes dry for a second, the motor sucks air, then game over."

I would dissagree with this for a few reasons. Not to be an ass but just have a mild tek talk!

1) The oil pan is (should) hold more oil than the valve covers so it should not run dry ...unless the oil was low

2) The oil drain gallerys flow more than the oil pump (on my engine they do anyway..not sure about the Fiero engien)...

3) There should be SOME oil left on the rod bearings if the pump went dry...the engine should run for a little while on this oil!...but I could be totally wrong!

I think this guy a) did NOT keep the oil topped off and the engine went dry...or B) over reved it and a rod cap bolt gave up!

No way it failed under normal use!

If he wants his money back ask to see the engine first. Take it part and look at the parts that should have oil on them (like the rod that failed). First determine where it failed and that will give you a good idea of the stresses involved and where they came from...next...look at the colour. If the engine was stressed it would have built up heat causing the oil to vaporize (slightly)..the vapour forms "sludge" on the parts staining them BROWN.....Look at a rod bearing...if its blue and burnt......he didnt have the proper amt. of oil in the engine!

[aaron88]

I’m just offering a possible cause that’s likely.  For the pickup to suck air the oil pan doesn’t have to be dry.  The oil in the pan almost never sits flat except when the car isn’t moving.  The level may have been low, but regardless, if you could theoretically rev a motor up to high enough rpm, the oil would be everywhere but in the pan.

Another likely scenario is revving the motor up to a high rpm and popping the clutch.  Over time, stress cracks lead to failure.

Aaron

.

[BootMachine]

I’m just offering a possible cause that’s likely.  For the pickup to suck air the oil pan doesn’t have to be dry.  The oil in the pan almost never sits flat except when the car isn’t moving.  The level may have been low, but regardless, if you could theoretically rev a motor up to high enough rpm, the oil would be everywhere but in the pan.

Another likely scenario is revving the motor up to a high rpm and popping the clutch.  Over time, stress cracks lead to failure.

Aaron

.

Hey man I'm totally not bashing you...just opening doors!

I never thought about the clutch thing.....thats a good point!

Whatever the cause I'm 100% sure this guy was abusing the engine!