Author Topic: M47 crank on m44, crank sensor bracket? (Read 5231 times)

Rtalatief · « **on:** August 16, 2019, 09:15:48 AM »

Hey guys,

Been meaning to build my m44 engine for quite some time.
I�m beginning to collect all the parts, but one of the challanges that I see is the crank position sensor for the m47 crank.
As we know, the m47 crank has an external crank sensor located in front of the engine, while the m44 uses a crank sensor inside the block on the rear of the engine.
I have seen some pics on the web that a few have managed to make a custom crank sensor bracket to mount to the m44 timing case.
Where can I find such crank sensor bracket for the m44 engine?
Thanks.

DesktopDave · « **Reply #1 on:** August 16, 2019, 04:20:18 PM »

I'd guess those brackets are one-off machined items. Could you get a machine shop to fit the trigger wheel onto the #4 crank throw of the M47 crank to fit the M44 wheel? They're only a few mm different, I'd think it's a likely fit. Might be your easiest option.

Alternatively, you find a late-version M42 (>8/92?) lower front timing chain cover with the integrated crank sensor, I'm told it's part# 11141739699 but I'm not 100% on that info.
I'm also told the sensors are different types between the M42 & M44, they're not interchangeable.

I also found good info in this thread:
So i have more M4x timing cases in the garage than i care to admit to you guys or tell my wife about......

Part Number Oi Pump cover #
2x M42 cases with the idler gear 1 721 799 1 714 614
2x M44 cases 1 739 802.9 1 714 614

& an odd ball
1x M42.x (late model) 1 739 413 1 714 614

The oldball case has the CPS bracket in the casting and the idler gear delete. I think it came from a Z3 but cant remember.... This is the case i'm considering using with the late model M44 metal gasket to the block so i have the upside of deleting the gear while retaining the OEM CPS bracket.

1998ccc · « **Reply #2 on:** August 22, 2019, 10:13:50 PM »

Metric Mechanic sell the bracket for converting the M44 to front trigger.

bmwman91 · « **Reply #3 on:** August 24, 2019, 11:59:55 PM »

Yeah check with Metric Mechanic. They provided the bracket for my 2.1L M42 that uses an M44 timing case. I would stick with the M44 timing case on the M44 since its oil pump flows 10-20% more oil, and on a built engine lubrication is even more important.

Rtalatief · « **Reply #4 on:** August 26, 2019, 10:04:07 AM »

Quote from: bmwman91 on August 24, 2019, 11:59:55 PM

Yeah check with Metric Mechanic. They provided the bracket for my 2.1L M42 that uses an M44 timing case. I would stick with the M44 timing case on the M44 since its oil pump flows 10-20% more oil, and on a built engine lubrication is even more important.

I already emailed Jim through MM web contact page as well as email, but no reply whatsoever.
And can�t really phone him because I�m not in the states.
Does anyone knows how to reach him apart from the ways I mentioned above?

Nick_318is · « **Reply #5 on:** August 29, 2019, 08:34:59 PM »

The best way is to call, bite the bullet and deal with the time difference. The guy is a wealth of knowledge.

Author Topic: M47 crank on m44, crank sensor bracket? (Read 5231 times)

Rtalatief

M47 crank on m44, crank sensor bracket?

DesktopDave

Re: M47 crank on m44, crank sensor bracket?

1998ccc

Re: M47 crank on m44, crank sensor bracket?

bmwman91

Re: M47 crank on m44, crank sensor bracket?

Rtalatief

Re: M47 crank on m44, crank sensor bracket?

Nick_318is

Re: M47 crank on m44, crank sensor bracket?