BMW E46 330d SE Touring

[helix402]

New manifold checked today after several hundred miles, all leak free.

I removed and refitted the turbo pressure converter and vacuum tank with the M57tu/N bracket:



All back together:



I also changed the seal between the turbo and pipe to air mass meter as BMW have made an improved one that seals better.

[helix402]

This socket is mighty handy for M47/57 inlet manifold removal, magnetic 11mm:

[helix402]

Remap and 3 bar map sensor done:

Edited by helix402 on Tuesday 18th June 19:20

[JakeT]

Very tasty numbers there. Bet it feels much more spritely to drive now!

[helix402]

JakeT said:

Very tasty numbers there. Bet it feels much more spritely to drive now!

Certainly does, though given the weather I’m taking it easy.

[duds100]

Awesome numbers & silky smooth torque curve to boot. Impressive.

[GrantD5]

Glad to see this is going well!

[helix402]

The remap is great. The mapper actually had the torque coming in lower down the rev range at first and more power.

He was getting some juddering at peak torque so reduced the power and moved the peak torque higher up the rev range.

Despite this I have judder at peak torque in 4th and 5th. I half expected this as I changed the clutch last year (20k miles ago) and left the original flywheel.

I’ve ordered a new LUK clutch (it’s not slipping but new flywheels are best with a new clutch), new Valeo flywheel, gen BMW clutch bolts and an uprated prop coupling.

If anyone wants a 20k LUK clutch drop me a PM before it goes on eBay!

The clutch change will be quicker than last time as I did all the gearchange bushes then+the primary cat delete gives a lot more room to work.

I’m confident the standard clutch and flywheel will be happy with the power/torque of the engine. I don’t fancy a very expensive un sprung Sachs clutch, though I can see why very high power M57s need them-and why the 335d is auto only.

[kevburner]

Finally helix you got it mapped 😎 nice 1 , there pretty impressive arnt they for an old tractor 🚜, you uprated the intercooler ? Decat ? If you haven’t get it done you can squeeze 260/270 bhp out of them , I doubt I’ll ever sell mine

Good work keep the updates coming great reading , I really enjoy your posts

[helix402]

kevburner said:

Finally helix you got it mapped ?? nice 1 , there pretty impressive arnt they for an old tractor ??, you uprated the intercooler ? Decat ? If you haven’t get it done you can squeeze 260/270 bhp out of them , I doubt I’ll ever sell mine

Good work keep the updates coming great reading , I really enjoy your posts

Glad you’re enjoying the posts. Intercooler is a new standard one, primary cat is gone.

[helix402]

New clutch/flywheel parts have arrived:



Flywheel bolts are included with the new flywheel.

[helix402]

Decided to change the diff oil when I do the clutch/flywheel:



Can’t beat the good old garden sprayer!

[helix402]

Clutch, flywheel, prop coupling done. It took four hours without rushing in the heat.

New diff oil too.

The old prop coupling was badly split, sadly as is the way of old cars the prop centre bearing is starting to split. Picture to follow.

I’ll probably try a Febi one when it fully goes as I can’t face the cost of a gen BMW one.

If anyone wants a 24k 1 year old LUK clutch send me a PM before it goes on eBay. Nothing wrong with it I just don’t have a SAC reset tool.

Pics:

New flywheel:



New prop coupling:





Diff with new oil and diff plug washers:

[helix402]

Some anorak prop coupling info, the factory prop coupling is a two stage device.

Stage one up to 250Nm, stage two from 250Nm onwards. At 148k miles and 609Nm it tends to unsurprisingly fall apart!

Edited by helix402 on Monday 1st July 19:57

[helix402]

Old prop coupling:

[helix402]

helix402 said:

Old prop coupling:

BMW part no for the uprated one is 26117546426. It is used on various BMWs including the 123d, 535d etc.

Edited by helix402 on Wednesday 3rd July 20:03

[helix402]

All clean for Goodwood:

[aaron_2000]

I recently sold my 316i daily as it was by far the most boring car I've ever owned. That's contract to my 184 330d, which despite being the most fked car I've ever owned, was also an absolute riot to drive. The engines make all the difference.

[helix402]

New prop bearing fitted. Two hours on my back in the heat. (Including the usual finding rust patches on the floor where the underseal has cracked and repairing these)

New bearing:



Old bearing:





New bearing fitted:



Then I did an N52 oil filter housing gasket for a friend:



Laptop is for coolant bleeding (I know you can do it without but I like to check the pump speed)

[helix402]

Passed 150k the other day. Sadly missed the actual passing as I didn’t have the car: