Rod knock? Loud lifters? Exhaust leak? What do you think

[FireFight]

Got my engine in, running, exhaust built, fired it up and this

https://vimeo.com/190630700

So low down on the motor, I pulled it 2 years back from a running car, no noises, it sat in a garage with out oil for about 2-3 years.
Motor in, 20w50 oil, running with open headers I didn't hear any noise.
Built the exhaust, fire it up and take it for a spin.when I come back I hear this noise.
First in thinking knock, but I have read a bunch of stuff on the lifters going bad and making a lot of noise.
The noise sounds to be upper but that could just be me hoping.
I'm also thinking maybe an exhaust leak?

Thoughts?



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[M3PO]

When you swapped the pan, did it have a baffle riveted into the shallow part? If I remember correctly, that can hit the crank.

[Panici]

When you swapped the pan, did it have a baffle riveted into the shallow part? If I remember correctly, that can hit the crank.

I have no first hand experience with this, so take it with a grain of salt.
The sound I hear in the video seems like a thin piece of metal being rubbed, which would support your theory.

[berlow94]

I disagree with the oil weight being the cause of loud lifters.
I run liqui-moly racetech 10w60. I have never gotten any noise out of my lifters. (I also don't have much left from the stock oiling system).

I would guess oil pan baffle installed wrong.

The answer won't be on here though... Start taking shit apart again!

[plain325]

How long of a ride did you take it on? My engine was very noisy for a while after I first started it. The lifters seem to take a while to pump up.

[Northern]

This is what the windage tray interference sounds like. While it's an S50b32, it should be similar enough for comparison.

Thanks to Eric for taking the video in the first place.

[Northern]

In case you can't visualize what is going on:

[FireFight]

In case you can't visualize what is going on:

so the e34 pan could have pushed that tray up? I left that tray on because I assumed it would prevent oil starvation(?).

[FireFight]

Jesus, I never even heard of this, I thought I did so much reading hahahaha. well looks like that SOB is getting pulled again

[FireFight]

Whats recommended to do with the bracket that holds the e36 oil pump pick up?

[BMW_TUNER]

Whats recommended to do with the bracket that holds the e36 oil pump pick up?

Get rid of it.

[dude8383]

That's exactly what happened to me when I built my first motor lol... Did an M50 with M52 internals but used the m50 windage tray lol!

Here's my thread from back in the day:

http://www.r3vlimited.com/board/showthread.php?t=121804

Last few posts are the discovery haha.

Goodluck!

[FireFight]

That's exactly what happened to me when I built my first motor lol... Did an M50 with M52 internals but used the m50 windage tray lol!

Here's my thread from back in the day:

http://www.r3vlimited.com/board/showthread.php?t=121804

Last few posts are the discovery haha.

Goodluck!

Hahah man, something so small and stupid has had me lose all my motivation for this swap, I as of yesterday was planning on tossing the m20 back in thinking it was a fucked motor haha.
looks like im gonna keep it going then.


Thanks everyone!

[Northern]

so the e34 pan could have pushed that tray up? I left that tray on because I assumed it would prevent oil starvation(?).

Different trays fit different cranks. If you have one on the block and one in the pan, then yes it may have pushed it up.

Whats recommended to do with the bracket that holds the e36 oil pump pick up?

Bend it back/forth to work harden it until it snaps off. If you unbolt it you need new main bolts, and if you grind it off you'll leave little bits of steel swarf everywhere.

[luckysnafu]

I'll join the incorrect oil baffle crew. I ran into the same thing with my last engine swap. Videos and pictures of my experience here - http://www.r3vlimited.com/board/showthread.php?t=318365