92 Volvo 240 engine chaos- What is this spring from my oil pan? What happened here?

[ZVOLV]

I am curious if you found anything by leaving fluid in the cylinders overnight/days.

 

[240blownupman]

I am curious if you found anything by leaving fluid in the cylinders overnight/days.

So it appear the rings are somewhat alright. The inside 2 cylinders were empty after about 4 days. The front and back still had oil in them. All of them held around the same amount after 1 day, and minor leakage from the middle 2 after 2 days.

After about 3-4 days the inside 2 ONLY were empty. Front and back still have fluid in them.

Check the doc here for results.

Let me know what you think.

Volvo 240 atf ring test

WEDNESDAY- SEPTEMBER 24th 2025 SATURDAY- SEPTEMBER 27th 2025

docs.google.com

 

[240blownupman]

So it appear the rings are somewhat alright. The inside 2 cylinders were empty after about 4 days. The front and back still had oil in them. All of them held around the same amount after 1 day, and minor leakage from the middle 2 after 2 days.

After about 3-4 days the inside 2 ONLY were empty. Front and back still have fluid in them.

Check the doc here for results.

Let me know what you think.

Volvo 240 atf ring test

WEDNESDAY- SEPTEMBER 24th 2025 SATURDAY- SEPTEMBER 27th 2025

docs.google.com

Also, in addition: I mentioned before that I did a leak down test. The first 2 cylinders, which didn’t have major issues with the valves still had a leak down at around 19% predominately coming through crankcase (oil dipstick tube).

So like… this isn’t ideal, but it’s not the worst thing. 10-15% range would have been nice. Also, if it was so bad, it wouldn’t make sense that 1 and 2 (same leak down results) wouldn’t leak down just as quick with the atf.

 

[240blownupman]

Aluminum wouldn't break like that. That part looks more like a composite material.

I think you’re right. Thanks for the message. It was really stressful just randomly finding that next to my head on the ground. I’ve had enough chaos with this thing.. I don’t need any more.

I’m going to assume something randomly ended up in my driveway and try not to think about it lol.

 

[ZVOLV]

I would say your tests aren't conclusive. At least not from where I am sitting.

 

[240blownupman]

Aluminum wouldn't break like that. That part looks more like a composite material.

However, it was tough though. I squeezed it with pliers and it was relatively durable.

I would say your tests aren't conclusive. At least not from where I am sitting.

 

[240blownupman]

However, it was tough though. I squeezed it with pliers and it was relatively durable.

could you elaborate on what you mean exactly?

Oh as in not pointing to any help? If so, yeah I would agree. No smoking gun to anything.

 

[240blownupman]

Hello everyone. I'm building another engine, and I will tear down the engine with metal in it soon. I will show everyone my current build and update on the previous engine eventually.

I have a question- (M47 Manual trans)

I just pulled the flywheel to transfer over to my other engine. Is this one cooked? I know some discoloration is normal, but these stress cracks seem excessive from the heat. I don't have another one and don't really want to get another one unless I have to.

Please let me know your thoughts and opinions.

All my pictures are too large, other than this one so here is a google doc with the photos.

flywheel photos volvo 240

docs.google.com

 

[Meatball]

Looks like high mileage worn out clutch shenanigans.

Ask a machine shop to skim it and see what it looks like. It's probably fine.