Monkey mans power adder

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 12:32 pm

I am also nodding an oil pump in the usual way. Unless I have a better idea?! It’s a know week link on the m54 especially if driven hard often at high RPM. The Center bolt that holds the drive cog on vibrates loose. And well your engine eats itself!

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I am also talking to a local company about harmonic damping as that’s the route cause of the issue. And I want to raise the rev limit ideally somewhere near 7k rpm

GuidoK · Post by **GuidoK** » Thu May 03, 2018 1:06 pm

Has the centernut on your oil pump shaft been unwound? (indeed that can happen, I know of 2 people personally that have had that problem)
I've replaced mine with a nut that has a locking wire (aircraft style

)

Do you have your oilpump dismanteled from your car right now?
If so, could you screw out the oil pressure piston and post a picture? (its held in with a lock ring on the side)
On the s54 its a wear item but I wonder to what extent that goes for the m54.

The oil pressure piston is #12 in the diagram:

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 1:20 pm

GuidoK wrote: ↑Thu May 03, 2018 1:06 pm Has the centernut on your oil pump shaft been unwound? (indeed that can happen, I know of 2 people personally that have had that problem)
I've replaced mine with a nut that has a locking wire (aircraft style )

Do you have your oilpump dismanteled from your car right now?
If so, could you screw out the oil pressure piston and post a picture? (its held in with a lock ring on the side)
On the s54 its a wear item but I wonder to what extent that goes for the m54.

The oil pressure piston is #12 in the diagram:

I brought a second hand oil pump. I have no idea of millage on it? But yes I can do that and post the picture.

I haven’t had a problem. But my best mate Chris has just last weekend had this happen to his car. It’s been used as a track drift car. But he was driving on road not crazy when it went. I think i will be making a new shaft and using 3 bolts and dowels i may then braze not weld the bolts and dowels.

Also the harmonic damper needs looking at as its vibration that’s causing this. And i just have a feeling the BMW idem isn’t up to the job. And especially on higher horsepower cars that will be driven hard.

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 1:42 pm

Looks untouched and good to me?

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GuidoK · Post by **GuidoK** » Thu May 03, 2018 2:00 pm

Yes looks pretty good from what I can see.

With the s54 this is somehow a wear item. Maybe because of the different rpm range or maybe slight difference in design, materials or sizes.
They can look like this:

But I havent seen any M54 pistons that looked like this (but that can be because this is not normally an item that is inspected, you can hardly find any pictures of used ones so its difficult to get an overview of this)

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 2:17 pm

I will be doing my oil pump. And I will remove the oil pump from my mates toasted m54 and his new engine. I will know millage in all of them. We can then start to build up a picture. See if there is any ware to find out if it’s an issue?

LittleZ4 · Post by **LittleZ4** » Thu May 03, 2018 2:42 pm

This oil pump issue is one thing that's always in the back of my mind as something to have checked/replaced. Will be interesting to see what you do. Will it be along the lines of the upgraded oil pump.......(GSR??)

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 2:58 pm

LittleZ4 wrote: ↑Thu May 03, 2018 2:42 pm This oil pump issue is one thing that's always in the back of my mind as something to have checked/replaced. Will be interesting to see what you do. Will it be along the lines of the upgraded oil pump.......(GSR??)

Got a link? I suspect it is similar there have been loads of people do various different things. I will have a spare oil pump at the end of this I can make you one up if you like? In return for you old oil pump and beer tokens my way?

LittleZ4 · Post by **LittleZ4** » Thu May 03, 2018 3:01 pm

Machine monkey wrote: ↑Thu May 03, 2018 2:58 pm
LittleZ4 wrote: ↑Thu May 03, 2018 2:42 pm This oil pump issue is one thing that's always in the back of my mind as something to have checked/replaced. Will be interesting to see what you do. Will it be along the lines of the upgraded oil pump.......(GSR??)
Got a link? I suspect it is similar there have been loads of people do various different things. I will have a spare oil pump at the end of this I can make you one up if you like? In return for you old oil pump and beer tokens my way?

Very much like this idea. I'll hunt a link out for the pump when Im not at work, everything gets censored in this place!!

Mister T · Post by **Mister T** » Thu May 03, 2018 5:22 pm

Try Parkin Racing Developments for the oil pump

Machine monkey · Post by **Machine monkey** » Thu May 03, 2018 10:25 pm

This is a late night for me. I have to be up at 5.30! But I have been out in my car! Amazing so much fun!

The steering conversion is great!
The turbo noises are are as addictive as crack!! Good knows what I will be like when I actually have boost!!

Night night all

Machine monkey · Post by **Machine monkey** » Fri May 04, 2018 8:16 am

Looks like it will be another sunny day.

Suns out monkey is out in his zed!!

Monkeydonkeyratmagic · Post by **Monkeydonkeyratmagic** » Fri May 04, 2018 8:29 am

Are you running a dump valve or a recirc valve on this? Just wondering if there are plans for a trumpet size one to go on it.

Machine monkey · Post by **Machine monkey** » Fri May 04, 2018 11:37 am

Yeah has a dump valve for now. As its by far the easiest option for how my system works.

LittleZ4 · Post by **LittleZ4** » Fri May 11, 2018 10:35 pm

How's it going now, any further updates??

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