Metallic Rattle 2-3k rpm

[R60BBA]

Where did you check that the stem seals are NLA? FCP has them in stock.

Several UK BMW main dealers have informed me that they are NLA.

Leeman24 has them on their site as ‘not available’.

However, having had a quick look, the usual US suppliers (FCP Euro, ECS Tuning and Turner Motorsport) seem to have them in stock…

[Slideways]

Do you have a link?

Genuine BMW valve stem seals (11349064457 x2) are NLA…

Where did you check that the stem seals are NLA? FCP has them in stock.

[R60BBA]

Check out the photo I posted on the OE manufacture parts list thread. I ordered Elring, corteco, and BMW. Bmw looked very different from the others. The design looked better too with a smaller diameter hole for a better seal.

I’d go with bmw head bolts. This isn’t a spot where you want to come back to because of $100 (valve seals + head bolts)

Do you have a link?

Genuine BMW valve stem seals (11349064457 x2) are NLA…

[Darbshaw]

Thank you everyone who contributed to this post to help me diagnose my stinkin rattle! I'm gonna cap this one off here as its served its purpose. Maybe it'll help someone on a google search later on. Although I made a new post to continue the new struggle there. Thanks again everyone!
link to the continuation https://nam3forum.com/forums/forum/m...ns-and-journey

[Darbshaw]

Damn steel, yours really took a beating. Thankfully mine is just a chipped off piece in 2 and it doesn't seem that it caused damage elsewhere. The underside of my head is actually exceptionally clean, maybe a testament to shell but mine look clean and proper. Maybe that extra heat or solevants in their gas is what put the piston over the edge. Who knows at this point.

Yea as of right now I'm not going to be just replacing the gasket. This is gonna turn into a rebuild or a whole engine swap. I have not really decided though since if I bought a loaner engine I would still go and do my rod bearings and head gasket in that just to ensure I'm not doing it again.

So I think its currently going to be leaning towards a rebuild and hopefully shes just down for the winter. My girl is not gonna like me when this thing keeps getting more and more expensive.

In the meantime, while I source a hoist and what not. Does anyone know of any good threads for engine building for our engines? IE piston sizing etc. This is going to be an ENTIRELY new realm for me so I'll be learning as I go.

[SteelGreyM]

Wow! Mine is EXACTLY like yours. Broken between every cyl except 5-6. My pistons look cooked exactly like yours. Mine was broken much worse though.
2 of my pistons had this burnt look to them. Piston #1 here broke some chunks off and mashed them into the cylinder head before shooting them out the exhaust. See to the right where there is a little dull spot between the cylinders? That’s a chunk of aluminum from the head melted onto the block. Yours appears to have the same thing going on. That will need to be resurfaced.

I’m not sure what you’re thinking right now so I’ll say this. Could you probably get away with a resurface and normal head gasket installation? Maybe. I wouldn’t count on your motor being healthy when it looks like that though. Don’t waste time and money on just changing the head gasket.


This is what my head looked like. I ended up buying a new head instead of repairing this one. This one could’ve been repaired but I got a really good deal on another head so I went for that one. This one is for sale if anyone wants it

[Darbshaw]

Now for the most disappointing news. I’m no expert by any means but it looks as if a couple of my pistons sustained some damage and cylinder 2 looks like it was eroding and there looks like a piece broken in it.


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[Darbshaw]

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[Darbshaw]

Well finally got around to pulling the head and the gasket was blown on all but one cylinder. Although that was still torn on the internal layer


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[Darbshaw]

What’s their price?

I’m personally going with the cometic gasket

169 for a .040” thick gasket. I’ll take a look into cometic as well!


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[SteelGreyM]

What’s their price?

I’m personally going with the cometic gasket

[Darbshaw]

Also I was looking into the vac Motorsport gasket as they have plenty of size options and being mls.

Like I said previously I wouldn’t go stupid thick to lower my compression ratio. Probably just enough to maintain my stock one whatever that slight difference would be. With the intention of eventually going FI I think this would be the best move.

I’ve also been leaning against going with head studs this entire time since I figure they will be a major PITA with the engine in the car. Although is that really something worth looking into or just well down the road as a race engine alternative?

https://store.vacmotorsports.com/mobile/vac-performance-mlsmulti-layered-steel-head-gasket-bmw-s54-p1331.aspx

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[Darbshaw]

https://youtu.be/pM9KXEw_Wd8

50s kid all the time

I guess I need to get on the 50’s kid more! I called what seems to be a reputable machine shop near my house and although very pricey it seems like they do thorough work.

Along with that they disassemble the valves and clean everything accordingly with ultrasonic and all the fun stuff and do the valve seals. Although I’d like to say I full diy the thing and push outside my comfort zone.
This would save me a chunk of change on the valve compression tool and I can just let them take car of it. So in the end the extra cost doesn’t seem too different since they have a pretty steep minimum cost. While getting a full pressure test and all may just be the best move.


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[SteelGreyM]

https://youtu.be/pM9KXEw_Wd8

50s kid all the time

[Darbshaw]

Does anyone know of good guides out there for cleaning and redoing valves and valve seals? Doesn’t have to be S54 specific. Just something to get an idea in my head.


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