CDT crankshaft pulley fitting - align parallel key? Not in RAVE!!

Bolin · 24th September 2018, 21:14

Hi folks

I have fitted a CDT crankshaft pulley as per RAVE - no mention of any special orientation whatsoever.

But have now seen a BMW manual which says this:

https://workshop-manuals.com/bmw/3_s..._damper_(m47)/

Caution! Danger of incorrect assembly. Align opening in vibration damper to parallel key. Insert central bolt when parallel key is noticeably located between opening.

Installation: Mount vibration damper and align opening to parallel key. Install new central bolt.

??!! This is not in RAVE!

So do I need to take it off and do it again?

Help.......

Bolin · 24th September 2018, 21:28

Looking at this again, does the BMW M47 (not R) have a proper key on the crankshaft that the pulley engages with that the M47R doesn't?

I assumed the instruction meant to visually line it up with a key behind that doesn't actually engage as on the M47R the pulley doesn't engage into a key.

Maybe it's fine??

Bolin · 24th September 2018, 21:40

OK ignore this thread - I should have researched first before panicking

https://the75andztclub.co.uk/forum/s...7&postcount=32

COLVERT · 24th September 2018, 21:43

I just have to say HELLO to stop you talking to yourself.---

So hopefully you are now Keyless rather than Clueless.----

Bolin · 24th September 2018, 23:07

Well 'danger of incorrect assembly' threw me - I thought it didn't mean a parallel/Woodruff key that actually fitted into the pulley but something behind that only visually aligns with the notch in the pulley. Hence you could put it on in the wrong orientation and get an 'incorrect assembly'.

With a key that actually fits into the pulley, which the M47R doesn't have, how on earth do you end up with 'incorrect assembly'? Surely it just wouldn't go on and if you tried to do up the bolt you'd end up with a very very wonky pulley

Having now properly searched the forum I see this difference between M47 & M47R has been highlighted a few times and confused a few other people who have also read this bit in the BMW manual, so I don't feel quite so stupid now.

Mike Noc · 25th September 2018, 08:22

Just to add to the confusion Colin, Rimmers show a key in one of their drawings, but it is for the cam chain drive sprocket, which sits just inboard of the crank pulley.

COLVERT · 26th September 2018, 20:54

Quote:

Originally Posted by Mike Noc

Just to add to the confusion Colin, Rimmers show a key in one of their drawings, but it is for the cam chain drive sprocket, which sits just inboard of the crank pulley.

That Rimmers catalogue could cause confusion if you were not too sure in the first place.----

Just noticed Mike we are running neck and neck on our post count and we joined the forum many years ago at a very similar time.

Keep up the good work.---

Mike Noc · 26th September 2018, 22:16

Cheers Jon. Funnily enough I don't usually look at my post count, but having checked it you are right.

24th September 2018, 21:14	#1
Bolin This is my second home Rover 75 2.5 V6 Connoisseur SE 4dr manual Wedgewood Blue 2 04-05/06/2001 Join Date: Nov 2006 Location: N.E. Hampshire Posts: 4,617 Thanks: 289 Thanked 308 Times in 243 Posts	CDT crankshaft pulley fitting - align parallel key? Not in RAVE!! Hi folks I have fitted a CDT crankshaft pulley as per RAVE - no mention of any special orientation whatsoever. But have now seen a BMW manual which says this: https://workshop-manuals.com/bmw/3_s..._damper_(m47)/ Caution! Danger of incorrect assembly. Align opening in vibration damper to parallel key. Insert central bolt when parallel key is noticeably located between opening. Installation: Mount vibration damper and align opening to parallel key. Install new central bolt. ??!! This is not in RAVE! So do I need to take it off and do it again? Help....... __________________ "...the new Rover 75, which is a fabulous car......I think it looks fabulous....It's like sitting in a Rolls Royce......For me, this is the star of the show.....it looks so good" - J. Clarkson, motoring journalist on the launch of the Rover 75 in 1998.

24th September 2018, 21:28	#2
Bolin This is my second home Rover 75 2.5 V6 Connoisseur SE 4dr manual Wedgewood Blue 2 04-05/06/2001 Join Date: Nov 2006 Location: N.E. Hampshire Posts: 4,617 Thanks: 289 Thanked 308 Times in 243 Posts	Looking at this again, does the BMW M47 (not R) have a proper key on the crankshaft that the pulley engages with that the M47R doesn't? I assumed the instruction meant to visually line it up with a key behind that doesn't actually engage as on the M47R the pulley doesn't engage into a key. Maybe it's fine?? __________________ "...the new Rover 75, which is a fabulous car......I think it looks fabulous....It's like sitting in a Rolls Royce......For me, this is the star of the show.....it looks so good" - J. Clarkson, motoring journalist on the launch of the Rover 75 in 1998.

24th September 2018, 21:40	#3
Bolin This is my second home Rover 75 2.5 V6 Connoisseur SE 4dr manual Wedgewood Blue 2 04-05/06/2001 Join Date: Nov 2006 Location: N.E. Hampshire Posts: 4,617 Thanks: 289 Thanked 308 Times in 243 Posts	OK ignore this thread - I should have researched first before panicking https://the75andztclub.co.uk/forum/s...7&postcount=32 __________________ "...the new Rover 75, which is a fabulous car......I think it looks fabulous....It's like sitting in a Rolls Royce......For me, this is the star of the show.....it looks so good" - J. Clarkson, motoring journalist on the launch of the Rover 75 in 1998.

24th September 2018, 23:07	#5
Bolin This is my second home Rover 75 2.5 V6 Connoisseur SE 4dr manual Wedgewood Blue 2 04-05/06/2001 Join Date: Nov 2006 Location: N.E. Hampshire Posts: 4,617 Thanks: 289 Thanked 308 Times in 243 Posts	Well 'danger of incorrect assembly' threw me - I thought it didn't mean a parallel/Woodruff key that actually fitted into the pulley but something behind that only visually aligns with the notch in the pulley. Hence you could put it on in the wrong orientation and get an 'incorrect assembly'. With a key that actually fits into the pulley, which the M47R doesn't have, how on earth do you end up with 'incorrect assembly'? Surely it just wouldn't go on and if you tried to do up the bolt you'd end up with a very very wonky pulley Having now properly searched the forum I see this difference between M47 & M47R has been highlighted a few times and confused a few other people who have also read this bit in the BMW manual, so I don't feel quite so stupid now. __________________ "...the new Rover 75, which is a fabulous car......I think it looks fabulous....It's like sitting in a Rolls Royce......For me, this is the star of the show.....it looks so good" - J. Clarkson, motoring journalist on the launch of the Rover 75 in 1998.

24th September 2018, 21:43	#4
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	I just have to say HELLO to stop you talking to yourself.--- So hopefully you are now Keyless rather than Clueless.----

25th September 2018, 08:22	#6
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Just to add to the confusion Colin, Rimmers show a key in one of their drawings, but it is for the cam chain drive sprocket, which sits just inboard of the crank pulley.

26th September 2018, 22:16	#8
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Cheers Jon. Funnily enough I don't usually look at my post count, but having checked it you are right.