VTT Crank Bolt Capture install guide

marauder1 · 04-18-2021, 09:59 PM

Quote:

Originally Posted by Twistm4

I just did this job last night for a friend. We noticed the VTT CBC wouldn't slip over the bolt. It wasn't even close. We ended up having to file a bit off two sides to get it to go on. Just a heads up if it doesn't fit try filing it a bit.

Yea mine was really snug trying to get it to slip over. I got it enough to just sit on the crank bolt. The. Used the bolts to push it on. Just went slowly in a cross pattern. Until it had been pushed all the way on. Took a while. The one I did did a customer this weekend just slipped right on really easily. Not sure why there's a difference.

VChenz · 04-19-2021, 08:56 AM

The difference is probably the bolt head tolerances or the CBC tolerance.

An engineer can correct but usually when fasteners are made, the tolerances are closely monitored in thing like thread pitch and hole size vs the head of a bolt unless the application of said fastener is required in a confined space.

TopJimmy · 04-19-2021, 09:18 PM

To get that bolt hole alignment you usually need to rotate the CBC one or two more ticks around the bolt face. The pattern of the slots on a Vargas CBC lines up like 98% of the time with the pulley bolt holes. There is indeed one small angle that doesn't let the bolts line up, but a guy had success with a dremel adjusting the ends of the slots in the CBC a tiny bit. This tweaking doesn't weaken the bolt clamping ability as long as the bolts can still be torqued properly.

jzhu625 · 04-24-2021, 10:24 PM

good info guys, what would be a good reasonable price get this installed? a buddy and I would like to get it done together and we're in NYC area

marauder1 · 04-25-2021, 07:18 PM

Quote:

Originally Posted by jzhu625

good info guys, what would be a good reasonable price get this installed? a buddy and I would like to get it done together and we're in NYC area

I charge between 200-250 when I install them.

TopJimmy · 04-25-2021, 10:41 PM

Quote:

Originally Posted by marauder1

Quote:

Originally Posted by jzhu625

good info guys, what would be a good reasonable price get this installed? a buddy and I would like to get it done together and we're in NYC area

I charge between 200-250 when I install them.

Fr!ggin great price there!

No kiddin'...

jzhu625 · 04-25-2021, 10:57 PM

Quote:

Originally Posted by marauder1

I charge between 200-250 when I install them.

for that trip i should do road trip! no kidding. this is awesome!

izzyM2 · 04-25-2021, 11:09 PM

Any installer who won't put a hole in my pocket - SoCal?

marauder1 · 04-26-2021, 09:06 AM

Quote:

Originally Posted by jzhu625

for that trip i should do road trip! no kidding. this is awesome!

lol, well I'm just outside DC near Dulles. If you're mechanically inclined I linked a video(not done by me) but it's the process I follow. Install takes about 2 hours taking your time. There's zero need to drop the radiator, oil cooler, etc. Just go in from the bottom. If the belt slips then remove the carbon brace and intake and release the tensioner. I've done a couple installs and haven't had the belt slip. Hoping I continue with that luck as I've got a few more installs lined up.

F80RN · 04-26-2021, 09:15 AM

Quote:

Originally Posted by izzym3

Any installer who won't put a hole in my pocket - SoCal?

Look up studio RSR in SoCal. They did my CBC and downpipe installation for the same price as other shops gave me just for a downpipe installation

foxfire235 · 05-07-2021, 07:55 PM

Can confirm I did this from the top by only removing the airbox and unclipping the radiator hose. I do have pretty small hands though. One piece of advice would be to have multiple small extensions for your ratchet / torque wrench. I had a hard time getting the tools to fit just right between the pulley and the fan.

Sahbatage · 05-19-2021, 07:26 AM

Got the CBC installed yesterday but I thought I noticed louder engine idle noise after picking it up, so of course my paranoia is in full gear and I'm not sure if it's just in my head or if it's real.

Anyone willing to take a video of their engine at idle with hood up so I can compare? marauder1 foxfire235 Imperial328i MasterYous. Mine is below if anyone can comment if it's abnormal or not.

Really appreciate the help guys!

https://vimeo.com/553485010

e46m3to335i · 05-25-2021, 02:31 PM

To the folks that have tackled this little project themselves. Have any of you taken the extra precaution and attempted to put an extra 1/8 or 1/4 turn on the crank bolt before you install the CBC? If so, how do you keep the crank from spinning as you turn the crank in a DCT car. I know the manual cars have the flywheel teeth to lock up with a large screwdriver/pry bar.

-Nick

TopJimmy · 05-25-2021, 05:23 PM

Quote:

Originally Posted by e46m3to335i

To the folks that have tackled this little project themselves. Have any of you taken the extra precaution and attempted to put an extra 1/8 or 1/4 turn on the crank bolt before you install the CBC? If so, how do you keep the crank from spinning as you turn the crank in a DCT car. I know the manual cars have the flywheel teeth to lock up with a large screwdriver/pry bar.

-Nick

Locking the crank and doing the extra quarter turn is almost as involved as doing a full crank hub fix. Requires special BMW tools too, and a 6-foot stretcher bar on top of a 3-foot half inch breaker bar. It's not DIY for the average car enthusiast.

TopJimmy · 05-25-2021, 05:25 PM

Quote:

Originally Posted by Sahbatage

Got the CBC installed yesterday but I thought I noticed louder engine idle noise after picking it up, so of course my paranoia is in full gear and I'm not sure if it's just in my head or if it's real.

Anyone willing to take a video of their engine at idle with hood up so I can compare? marauder1 foxfire235 Imperial328i MasterYous. Mine is below if anyone can comment if it's abnormal or not.

Really appreciate the help guys!

Totally normal DI chatter.
You hear paranoia my friend...

Sahbatage · 05-26-2021, 06:11 AM

Quote:

Originally Posted by TopJimmy

Quote:

Originally Posted by Sahbatage

Got the CBC installed yesterday but I thought I noticed louder engine idle noise after picking it up, so of course my paranoia is in full gear and I'm not sure if it's just in my head or if it's real.

Anyone willing to take a video of their engine at idle with hood up so I can compare? marauder1 foxfire235 Imperial328i MasterYous. Mine is below if anyone can comment if it's abnormal or not.

Really appreciate the help guys!

Totally normal DI chatter.
You hear paranoia my friend...

Haha yah after a few days I was thinking it was just paranoia.

marauder1 · 05-29-2021, 05:34 PM

Quote:

Originally Posted by Sahbatage

Got the CBC installed yesterday but I thought I noticed louder engine idle noise after picking it up, so of course my paranoia is in full gear and I'm not sure if it's just in my head or if it's real.

Anyone willing to take a video of their engine at idle with hood up so I can compare? marauder1 foxfire235 Imperial328i MasterYous. Mine is below if anyone can comment if it's abnormal or not.

Really appreciate the help guys!

https://vimeo.com/553485010

Sorry missed the notification but sounds normal.

MyNameIsNotSure · 06-02-2021, 01:43 AM

Quote:

Originally Posted by F80RN

Look up studio RSR in SoCal. They did my CBC and downpipe installation for the same price as other shops gave me just for a downpipe installation

Any other recommendations for shops in SoCal? Just looking to do the CBC. I’m in Santa Barbara but willing to make the drive to LA for the right price. The local shop here (HP Autosport) quoted $1k in labor, which sounds a bit high to me? That RSR place has some sketchy Yelp reviews so not too sure about it, also all the way in Anaheim..

Wanted_M · 06-02-2021, 08:32 AM

EAS

e46m3to335i · 06-02-2021, 09:55 AM

Quote:

Originally Posted by MyNameIsNotSure

Any other recommendations for shops in SoCal? Just looking to do the CBC. I’m in Santa Barbara but willing to make the drive to LA for the right price. The local shop here (HP Autosport) quoted $1k in labor, which sounds a bit high to me? That RSR place has some sketchy Yelp reviews so not too sure about it, also all the way in Anaheim..

Good lord.

Set of ramps and a basic hand tools/socket set= $100

Youtube tutorial= Free

5-6 hours of your time= Free

MisterF80M3 · 06-02-2021, 11:13 AM

Quote:

Originally Posted by MyNameIsNotSure

Quote:

Originally Posted by F80RN

Look up studio RSR in SoCal. They did my CBC and downpipe installation for the same price as other shops gave me just for a downpipe installation

Any other recommendations for shops in SoCal? Just looking to do the CBC. I’m in Santa Barbara but willing to make the drive to LA for the right price. The local shop here (HP Autosport) quoted $1k in labor, which sounds a bit high to me? That RSR place has some sketchy Yelp reviews so not too sure about it, also all the way in Anaheim..

It should only take a shop experienced on the S55 engine 1.5-2hr to finish.

I paid $400 in NorCal, which is notorious for high labor rates as well

Wanted_M · 06-02-2021, 12:46 PM

Quote:

Originally Posted by e46m3to335i

Good lord.

Set of ramps and a basic hand tools/socket set= $100

Youtube tutorial= Free

5-6 hours of your time= Free

And some R rated comments, priceless

04-19-2021, 08:56 AM	#156
VChenz Second Lieutenant 181 Rep 219 Posts Drives: 2015 M3 Base Join Date: Jun 2019 Location: ON iTrader: (0)	The difference is probably the bolt head tolerances or the CBC tolerance. An engineer can correct but usually when fasteners are made, the tolerances are closely monitored in thing like thread pitch and hole size vs the head of a bolt unless the application of said fastener is required in a confined space.
	Appreciate 0 Quote

04-19-2021, 09:18 PM	#157
TopJimmy Major General 5445 Rep 5,137 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	To get that bolt hole alignment you usually need to rotate the CBC one or two more ticks around the bolt face. The pattern of the slots on a Vargas CBC lines up like 98% of the time with the pulley bolt holes. There is indeed one small angle that doesn't let the bolts line up, but a guy had success with a dremel adjusting the ends of the slots in the CBC a tiny bit. This tweaking doesn't weaken the bolt clamping ability as long as the bolts can still be torqued properly. __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
	Appreciate 1 Chris@VargasTurboTech1932.00 Quote

04-24-2021, 10:24 PM	#158
jzhu625 Lieutenant 119 Rep 443 Posts Drives: f83 Join Date: Mar 2009 Location: Long island iTrader: (0)	good info guys, what would be a good reasonable price get this installed? a buddy and I would like to get it done together and we're in NYC area
	Appreciate 0 Quote

04-25-2021, 11:09 PM	#162
izzyM2 Major 701 Rep 1,240 Posts Drives: 24’M2/21ID.4/21’MacanGTS Join Date: Sep 2012 Location: SoCal iTrader: (4)	Any installer who won't put a hole in my pocket - SoCal?
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05-07-2021, 07:55 PM	#165
foxfire235 Enlisted Member 9 Rep 36 Posts Drives: 2007 e91 Join Date: Jul 2019 Location: roanoke, va iTrader: (0)	Can confirm I did this from the top by only removing the airbox and unclipping the radiator hose. I do have pretty small hands though. One piece of advice would be to have multiple small extensions for your ratchet / torque wrench. I had a hard time getting the tools to fit just right between the pulley and the fan.
	Appreciate 0 Quote

05-19-2021, 07:26 AM	#166
Sahbatage Lieutenant 503 Rep 571 Posts Drives: 2016 IR BMW M4 Join Date: Dec 2015 Location: Denver, CO iTrader: (1)	Got the CBC installed yesterday but I thought I noticed louder engine idle noise after picking it up, so of course my paranoia is in full gear and I'm not sure if it's just in my head or if it's real. Anyone willing to take a video of their engine at idle with hood up so I can compare? marauder1 foxfire235 Imperial328i MasterYous. Mine is below if anyone can comment if it's abnormal or not. Really appreciate the help guys! https://vimeo.com/553485010 __________________ "If you have everything under control, you're not moving fast enough" Last edited by Sahbatage; 05-21-2021 at 02:28 PM..
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05-25-2021, 02:31 PM	#167
e46m3to335i Major 172 Rep 1,375 Posts Drives: 2015 F80 M3 Join Date: Feb 2010 Location: Fort Bragg, NC iTrader: (26)	To the folks that have tackled this little project themselves. Have any of you taken the extra precaution and attempted to put an extra 1/8 or 1/4 turn on the crank bolt before you install the CBC? If so, how do you keep the crank from spinning as you turn the crank in a DCT car. I know the manual cars have the flywheel teeth to lock up with a large screwdriver/pry bar. -Nick
	Appreciate 0 Quote

06-02-2021, 08:32 AM	#173
Wanted_M Captain 756 Rep 946 Posts Drives: Frozen Blue M4CS Join Date: Jul 2009 Location: Norcal iTrader: (2)	EAS __________________ M4CS Frozen Blue ARM DP's/Resonated Mid-pipe \| SPL links \| Hotchkis bars \| JRZ RS2/camber plates \| K&N \| Koyorad HX \| Powerflex purple \| Rouge \| Spiegler \| Speed Eng. snorkel \| Vargas CBC/hub \| Wagner IC \| xHP \| Xpel stealth ppf
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