Author Topic: M47 crank refrence guide. (Read 59731 times)

kowalski · « **Reply #15 on:** February 28, 2008, 02:35:11 AM »

Quote from: pungky29;43795

Thanks for the reference mate!

BTW, on BMW TIS 2007, I found out that E46 318d M47N has 90mm stroke without flywheel balancer and looked similar to E46 318d M47 crankshaft with 88mm stroke
The price of both crankshafts are similar, according to this site:

http://bmwfans.info/original/E46/Lim/318d-M47N/ECE/R/N/2004/10/mg-11/ill-11_3513/

If it can be used with E36 S50 B30 US M3 piston which has 86mm diameter and 32.8mm compression distance plus 135mm conrod length, the resulting displacement is 2,091cc (86mm x 90mm) with 1,5 conrod ratio. Off course you need to enlarge the bore to 86mm (2mm larger for m42 or 1mm larger for M44)
The total deck height will 211.80mm or it will sits 0.35mm lower than M42/M44 standard deck height.

What do you think?

pretty much spot on. thats interesting about the 90mm stroke though, good find. link isn't working for me though...

fabe · « **Reply #16 on:** February 28, 2008, 03:32:26 AM »

Quote from: pungky29;43795

Thanks for the reference mate!

BTW, on BMW TIS 2007, I found out that E46 318d M47N has 90mm stroke without flywheel balancer and looked similar to E46 318d M47 crankshaft with 88mm stroke
The price of both crankshafts are similar, according to this site:

http://bmwfans.info/original/E46/Lim/318d-M47N/ECE/R/N/2004/10/mg-11/ill-11_3513/

If it can be used with E36 S50 B30 US M3 piston which has 86mm diameter and 32.8mm compression distance plus 135mm conrod length, the resulting displacement is 2,091cc (86mm x 90mm) with 1,5 conrod ratio. Off course you need to enlarge the bore to 86mm (2mm larger for m42 or 1mm larger for M44)
The total deck height will 211.80mm or it will sits 0.35mm lower than M42/M44 standard deck height.

What do you think?

Price in USD or Euro??

pungky29 · « **Reply #17 on:** March 13, 2008, 02:58:16 AM »

Quote from: fabe;43799

Price in USD or Euro??

Price is in Euro (880 Euro) according to http://www.bmwfans.info

However, further comparison on ETK 2007 between the 90mm stroke crankshaft of E46 318d M47N (BMW p/n 11217790928) and the 88mm stroke crankshaft of E36 318d M47 (BMW p/n 11212247515) shows the difference in guide bearing shell and bearing shell used on the crankshaft (different BMW part number).
The guide bearing shell and bearing shell used on the crankshaft of E36 318d M47 and M42, M43, M44, M50 and M52 engines are all similar
So this is inline with the reference guide from Mike Kowalski in the beginning of this thread.
In other words, the 88mm crankshaft of 318d M47 seems the best fit to use as a stroker crank on M42 M44 engine.

Or, can a little bit machining on the block will accommodate 90mm stroke crankshaft of E46 318d M47N ?? Any idea?

CePa318IS · « **Reply #18 on:** March 17, 2008, 10:40:57 AM »

is the m47 crank forged or cast? Oh, can we sticky this post for easy reference?

kowalski · « **Reply #19 on:** March 17, 2008, 11:03:53 AM »

its forged.

odbod · « **Reply #20 on:** January 15, 2009, 03:27:57 PM »

Does anyone know that the engine was also fitted to the Rover 75 (UK Brand) and is engine code M47R. I am trying to get more information, anyone know if it is usable?

D'oh just re-read above that it is listed, has anyone used one?

littleboyblues · « **Reply #21 on:** August 17, 2010, 07:48:30 AM »

Reading wiki they say that the Land Rover Freelander TD4 model has a m47 engine in it. Would have to be the early years of the Freelander. However Im pretty sure we have those in north america. So could this be a way of getting this crank?

accota · « **Reply #22 on:** August 31, 2010, 07:44:15 PM »

I'm looking into a m42 stroker, found this m47r crank, does someone know if it will fit?
Its from a Rover 75 2litre 2002 16v Type D4D M47R

as comparison:
Here is the M42 left, M44 middle, M47 right.

It looks like the nose is to short like a m47n, someone can confirm this?

thanks

Blackice · « **Reply #23 on:** March 06, 2011, 04:05:42 PM »

Quote from: kowalski;18115

Note the rover, not a bmw, but has the bmw engine, and right crank.

If the Rover is the right crank, is this the crank ?

This guy has over 10 brand new cranks available, for 95 sterling.

http://cgi.ebay.co.uk/BRAND-NEW-BMW-2-0-DIESEL-CRANK-SHAFT-/150545424560?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item230d34e0b0

If we shipped a few over together, then the shipping would be fairly reasonable.

So is this the right crank ? Anyone

bflan2001 · « **Reply #24 on:** September 29, 2011, 01:45:39 AM »

does anyone have any better information as far as which Freelanders and which Rover 75s the crank we need came out of? I can't find any specific info on what engine those two cars had, whether it was the m47d or the m47n. also, some people are selling m47r crankshafts. since getting one of these crankshafts involves overseas shipping of a very heavy part, i really don't want to pay to have one shipped only to find it's the wrong one (and therefore completely useless because the m47 was never offered here so I would never be able to resell it).

bflan2001 · « **Reply #25 on:** October 02, 2011, 11:45:35 PM »

anyone?

DesktopDave · « **Reply #26 on:** October 07, 2011, 09:20:55 PM »

I wish I knew. I'd love to stroke the M42 & add a few goodies, but I've never found the correct info. I'd get them to take a lot of pictures...

Rockiii · « **Reply #27 on:** June 30, 2014, 06:00:10 AM »

Hey Guys, I'm also interested in built a 2.1l M42. But I'm confused which crank is the right way and what exactly has to be machined.

M47D18 or D20?

Just give me some infos, a friend of mine could do the job here in Germany.

If i tell him what to do exactly what to do on which crank he can give me a price.

To bore the block up to 86.5mm for example he's asking 200� (one block)

I will try to arrange some cheap cranks, but need to know which one is the best.

Thx in advance

Darky · « **Reply #28 on:** July 23, 2014, 05:47:54 AM »

The correct crank is m47d20 with 88 mm stroke, I believe that m47d18 uses the same crank.

The incorrect cranks are m47tud20, m47tu2d20, and m47r as they have a short snout and require a fair amount of work to lengthen. But doable and they have a stroke of 90 mm.

You can spot the difference easily by the fact that the incorrect cranks have a short snout and a large timing wheel just in front of where the flywheel bolts on.

Cheers

dsm2002 · « **Reply #29 on:** July 08, 2016, 04:20:27 AM »

The crank pulley bolt and washer for the M47 is a euro market only. Stock is a M18x1.5x102 bolt. A readily available alternative is the N20 crank pulley bolt which is M18x1.5x108mm. The parts list do not list any dimensions of any of the washers. For the Australian market at least, the E90 320D M47N2 washer is a possible option. Part numbers highlighted below in red.

The bolt and washer is with the engine builder and if there are any issues with them, I update. Part numbers and specs are:

M47
Hex bolt    11232248268      M18x1.5x102   M47
Washer    11232247260

M44
Hex bolt    11211721100      M16x1.5x120   M44
Washer    11231709977

E90 320D
Hex bolt   11237790922      M18x1.5x85.5   320D * too short
Washer    11237787326

N20
Collar screw.   11217614270      M18x1.5x108   N20

Author Topic: M47 crank refrence guide. (Read 59731 times)

kowalski

M47 crank refrence guide.

fabe

M47 crank refrence guide.

pungky29

M47 crank refrence guide.

CePa318IS

M47 crank refrence guide.

kowalski

M47 crank refrence guide.

odbod

M47 crank refrence guide.

littleboyblues

M47 crank refrence guide.

accota

M47 crank refrence guide.

Blackice

M47 crank refrence guide.

bflan2001

M47 crank refrence guide.

bflan2001

M47 crank refrence guide.

DesktopDave

M47 crank refrence guide.

Rockiii

Re: M47 crank refrence guide.

Darky

Re: M47 crank refrence guide.

dsm2002

Re: M47 crank refrence guide.