Saw a post on another thread this morning about this - never heard of that before..... Can anyone else confirm the theory that a 944 engine on a typical engine stand where it is attached in place of the bell housing could "wilt" or bend over time?

See post #21

https://rennlist.com/forums/924-931-...-engine-2.html

 

Nope.

 

Crack is wack.

 

There are tards at every turn on the internet, namely on any technical forum.

Every day I am truely amazed at the misinformation that is passed on the web. Sad thing is that 99% of the moderators in technical forums do not do anything to keep bad information from being passed on.

"If it is on the interweb it MUST be true"

 

I never had heard of it before til i got into mechanics more... in 99 I heard of VW L4 motors bending over prolonged time on the engine stand... Understand though it takes time and that it can bend in the 100th and 1000ths of an inch margin but thats enough to mess up the center line bore...

I didnt hear of it again until 2002 when i worked at the viper shop and the boss would make me take them off the stands after disassembly and put the bare blocks on rubber mats on the floor; we would leave the adapter attached but basically the crank and heads were removed... when I asked him why; he said they can bend over time sitting on the stands too long...

I would say though that an older american engine with a cast or forged steel block is less likely to do this but these alloy blocks of today it seems more likely to me that it can...

 

That sounds like the old saying that if you leave a rifle sat in the corner with the barrel against the wall, it will bend the barrel.

 

Nonsense. Utter BS.

 

What a crock. I Guess now I'll have to turn mine back over to 'bend' it back The only thing that will bend is the rotating tube on the cheap engine stand. Don't you just love the internet?

 

If you don't turn the engine over by hand periodically in the winter, your drive shaft will sag between bearings.

 

Metal does gradually bend a little if there's a lot of unsupported weight in one place. However, there's obviously a support structure built into these 944 engines, and they are normally only supported by 2 engine mounts in the middle, with extra weight hung off of the front and the back. I wouldn't worry about it being on an engine stand. If there is any deformation, I really doubt it's enough to matter.

If you're going to be concerned about anything bending from unsupported weight, it should probably be the crankshaft when it's not installed in an engine, as it is designed to be supported by the main bearing surfaces, and not by the weights (which aren't going to be even if you lay it on its side). But even with that, it's still somewhat of a topic for debate, with a lot of "a guy I know said" arguments.

 

 

Im pretty noob so I just wanna learn, and learn the right way :P Tell me if this is bull or a possibility, so I don't make a mistake like that one day :/


This is what the guy sugesting the bend said.
"Also you mentioned you had it "on a stand"; do you mean the ones they use on old chevy engines that rolls around the room..? the kind of stand that bolts a bracket to the bolt holes at the back of the engine and lets all the weight on the engine weigh toward the front..?

if so you could have a bent/warped block now... 3 months on a stand like that is too long these are aluminum blocks not steel...

if its not the bearings im betting the block could be bent..."

 

omg i was actually laughing out loud here.

 

the engine in my car sat on a stand for 6 months in various states of being assembled...its been fine for 3.5 years so far...

engine in my avatar has been there since november...no issues

 

Funny. This reminds me...Anyone here remeber the technical service bullitin from BMW to remove and discard the top-center bolt on the trans? Many years ago.