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S54 specialist needed!!!!!! Possible cooked Motor

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pHilli0
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S54 specialist needed!!!!!! Possible cooked Motor

Post by pHilli0 » Tue May 30, 2017 8:45 pm

Z4M-2006 wrote: Tue May 30, 2017 8:38 pm
dannytheduck1985 wrote: Tue May 30, 2017 7:48 pm
mr wilks wrote: Mon May 29, 2017 8:14 pm Its a hefty kick in the spuds Dan especially after all the effort taken to get this far .
Feel free to share a little more on yesterdays manouvres which resulted in this outcome .
There does appear to be a link with S54 engine meltdown & extreme heat cycle / dirty oil / low oil / cold start thrashing or general oil starvation from hitting the bends hard on trackdays :cry:
Lol. Oil was 3k old and checked everytime I drive the car. It was castrol edge professional 10w60.

Here's the events leading upto destruction:

Starts the car and waited for the rev counter count down.
Drove out my village, Headed to get fuel 3.5miles away. (never run below a quarter of a tank and has to be V power)
The last mile of the journey I hit around #45
Filled up
Come off the forecourt with the back end in another lane
Persisted on hitting the limiter in 4 gears and climbing in 5th.
Once in urban surrounding and tootling at 30 I started to hear a ticking which slowly got louder.


So.........................

You have w@nkered your engine because you have banged it off the limiter before the oil was warm

Good one,fair play Dan.. :thumbsup:
Bit harsh...
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S54 specialist needed!!!!!! Possible cooked Motor

Post by john-e89 » Tue May 30, 2017 8:56 pm

Nah not harsh, the guy's admitted dry bumming his motor...fair play to him for that... :lol:

Get it rebuilt and don't be such a tit again fella.. :wink:...hope it's not too bad.. :thumbsup:
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S54 specialist needed!!!!!! Possible cooked Motor

Post by dannytheduck1985 » Tue May 30, 2017 9:09 pm

Z4M-2006 wrote: Tue May 30, 2017 8:38 pm
dannytheduck1985 wrote: Tue May 30, 2017 7:48 pm
mr wilks wrote: Mon May 29, 2017 8:14 pm Its a hefty kick in the spuds Dan especially after all the effort taken to get this far .
Feel free to share a little more on yesterdays manouvres which resulted in this outcome .
There does appear to be a link with S54 engine meltdown & extreme heat cycle / dirty oil / low oil / cold start thrashing or general oil starvation from hitting the bends hard on trackdays :cry:
Lol. Oil was 3k old and checked everytime I drive the car. It was castrol edge professional 10w60.

Here's the events leading upto destruction:

Starts the car and waited for the rev counter count down.
Drove out my village, Headed to get fuel 3.5miles away. (never run below a quarter of a tank and has to be V power)
The last mile of the journey I hit around #45
Filled up
Come off the forecourt with the back end in another lane
Persisted on hitting the limiter in 4 gears and climbing in 5th.
Once in urban surrounding and tootling at 30 I started to hear a ticking which slowly got louder.


So.........................

You have w@nkered your engine because you have banged it off the limiter before the oil was warm

Good one,fair play Dan.. :thumbsup:
:rofl: I thought it was warm Gaz. Was on 90 degrees. Maybe I should of waited a while before bouncing it off the red line. Patience is a virtue...... it's also f***ing expensive.

Rebuild and upgrade it is then
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S54 specialist needed!!!!!! Possible cooked Motor

Post by P-Dub » Tue May 30, 2017 9:09 pm

simpson motorsport in lydney, bit of a trek but they know there stuff.

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S54 specialist needed!!!!!! Possible cooked Motor

Post by dannytheduck1985 » Tue May 30, 2017 9:12 pm

I don't take offence to blunt comments, I'm also blunt lol.
In the words of my old lady........ son your a dickhead :rofl:
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S54 specialist needed!!!!!! Possible cooked Motor

Post by Z4M-2006 » Tue May 30, 2017 9:17 pm

If the oil temp was at 90 degrees you really should be able to do what ya want...

But the S54 can be a bit fragile ...

It's a hard lesson learned

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S54 specialist needed!!!!!! Possible cooked Motor

Post by mr wilks » Tue May 30, 2017 9:23 pm

Applaud your honesty Dan , who , where , when were the valve clearances last done ? That may also factor in the engines demise :cry:
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S54 specialist needed!!!!!! Possible cooked Motor

Post by dannytheduck1985 » Tue May 30, 2017 9:35 pm

mr wilks wrote: Tue May 30, 2017 9:23 pm Applaud your honesty Dan , who , where , when were the valve clearances last done ? That may also factor in the engines demise :cry:
lol there's no point in lying about it, takes a bigger man to admit when their in the wrong.
The car has covered 3k hard miles since the car was put back together. The impact the car was involved in was sufficient enough to smash all auxiliaries off the block. So the answer to the valve clearance question is........ I haven't a clue.
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S54 specialist needed!!!!!! Possible cooked Motor

Post by mmm-five » Tue May 30, 2017 9:44 pm

For anyone else...please don't let the car sit on the drive 'warming up', as that doesn't get the oil circulating properly, not does it warm up the gearbox or diff oils properly/at all.

BMW even say to just get in and drive it. Just keep the revs below the levels indicated, with no fulll-bore acceleration until the warm up lights have gone off.

But these engines seem to have some random issues anyway, as there's doesn't seem to by any 100% realisable way to say which will go bang and which won't.
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S54 specialist needed!!!!!! Possible cooked Motor

Post by Scooba_Steve » Tue May 30, 2017 9:53 pm

Taking it like a trooper, good lad!

Seems fair to have assumed at 90 the oil would be warm but then I don't know these engines. An expensive lesson either way.
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S54 specialist needed!!!!!! Possible cooked Motor

Post by dannytheduck1985 » Fri Jun 02, 2017 10:15 pm

What's people's thought on changing from 10w60 to 0w40 oil? More viscous at low temperatures, a lower heat rating but more vicious at high temperature. Let's face it if your oil temp is exceeding 125 degree, the oil breakdown is the least of your worries.
This is recommended by Mr Vanos
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S54 specialist needed!!!!!! Possible cooked Motor

Post by mr wilks » Fri Jun 02, 2017 10:42 pm

:cry: that sounds like a bad plan but each to their own :? I did a good deal of S54 study before & during my previous M ownership & continued that after i sold it , never once did a change of oil grade to 0w 40 come up as a possible good move :|
Millers CFS Nano 10w60 is my preferred lubrication ,https://www.pistonheads.com/gassing/top ... 76175&i=20
lots to study online but its becoming clear that oil choice can be as subjective as tyre choice & ultimately down to personal preference & beliefs
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S54 specialist needed!!!!!! Possible cooked Motor

Post by Smartbear » Fri Jun 02, 2017 10:59 pm

Hi, I remember your car had a broken sump when you got it-I wonder how long it ran with oil leaking out the engine.....
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S54 specialist needed!!!!!! Possible cooked Motor

Post by mmm-five » Sat Jun 03, 2017 10:59 am

dannytheduck1985 wrote: Fri Jun 02, 2017 10:15 pm What's people's thought on changing from 10w60 to 0w40 oil? More viscous at low temperatures, a lower heat rating but more vicious at high temperature. Let's face it if your oil temp is exceeding 125 degree, the oil breakdown is the least of your worries.
This is recommended by Mr Vanos
This is an argument that came up many times on the M5 Board when I had my e34 M5s, and I was hoping it wouldn't come up here :P

Just so we all understand the coding of multigrade oil, the 10w or 0w is the cold crank viscosity and the 2nd number is the minimum viscosity that it has to be at 100ºc.

At 0ºc 10w60 has a cold crank viscosity of 874cst vs 665cst of 0w40.

At 100ºc 10w60 has a hot viscosity of 24cst vs the 14cst of 0w40 (i.e 10w60 us about 70% more viscous).

So, a thinner oil will circulate faster when cold, but a thicker oil will (to a limit) work/protect better at higher temps.

However, the optimal oil for any specific use will depend on that use. If it's a daily driver that hardly gets to warm up, is never hooned or tracked, nor sits on an autobahn at over 100mph for an hour at a time, then a lower viscosity oil will be fine.

There are stories on the internet regarding a decision BMW supposedly made, early on in the life of the S54 when they changed the recommended oil from an 0w40 to the 10w60 we use now. Some say it was due to a deal/collaboration with Castrol to sell the TWS (but I was using that in the S38 M5 before the S54 came out anyway), and other say it was due to oil pressure & oil use issues.

You might find you use more oil as it blows past the rings/valves and burns, but it won't be much (e.g. on the e34 M5 it was not uncommon to use a litre of oil a week/500 miles).

Different oils will have different lifespans - not related to the viscosity rating. They will all pass their tests when new, but many will break down very quickly and should be changed more regularly...some 'extended life' oils will break down slowly over 15,000 miles whilst others will reach the same lower levels after only 5,000 miles.

Ultimately is down to personal preference. I choose to use 10w60 and change my oil & filter every 6-7,000 miles and also after a Ring trip.
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S54 specialist needed!!!!!! Possible cooked Motor

Post by tjlazer » Sat Jun 03, 2017 11:09 am

In my opinion it's time someone did an ls3 conversion. Sounds like it's your time!
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