question about underdrive pulleys

mhjeep · 09-16-2013, 10:02 PM

I recently got a Dinan underdrive pulley and am about to install it. I noticed on the instructions that they recommend Loctite for the bolts. Did those of you who have UD pulleys installed use this stuff? If so, how hard would it be to go back to stock later?

thanks

psk278 · 09-16-2013, 10:13 PM

Definitely use blue loctite. It does not require anything else then just a little more torque when you go to remove it.

Someone? · 09-16-2013, 10:14 PM

I did my own Dinan pulley and i did use the loctite and yes it wont be hard to get it back off, there's a trick to getting that front belt on tho, that's the hardest thing about the install. Oh and make sure you torque them to the specified specs.

mhjeep · 09-16-2013, 10:16 PM

thanks for the quick responses.

M3 Esq · 09-16-2013, 10:31 PM

I did my own install and yes I used the locktite. Search under my threads I have a DIY on installing the belts. It's a real PIA.

Hujan · 09-17-2013, 03:12 AM

Tried the install myself two weeks ago. Could not get the front belt on at all, even with a friend to hold the tensioner down. Broke the power-steering pulley in the process. Took it to a local BMW dealer and they could not get the belt on either. I'm really wondering if I got the right belt, it's that tight. Not sure what to do next.

09-16-2013, 10:02 PM	#1
mhjeep First Lieutenant 136 Rep 363 Posts Drives: 2018 M3 Join Date: Jun 2009 Location: Dallas, TX iTrader: (0) Garage List 2015 BMW M3 [0.00]	question about underdrive pulleys I recently got a Dinan underdrive pulley and am about to install it. I noticed on the instructions that they recommend Loctite for the bolts. Did those of you who have UD pulleys installed use this stuff? If so, how hard would it be to go back to stock later? thanks
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09-16-2013, 10:13 PM	#2
psk278 New Member 0 Rep 8 Posts Drives: 08 M3 6MT Join Date: Aug 2013 Location: United States iTrader: (0)	Definitely use blue loctite. It does not require anything else then just a little more torque when you go to remove it.
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09-16-2013, 10:14 PM	#3
Someone? Perception is King 143 Rep 1,702 Posts Drives: M4 Join Date: May 2013 Location: Michigan iTrader: (8)	I did my own Dinan pulley and i did use the loctite and yes it wont be hard to get it back off, there's a trick to getting that front belt on tho, that's the hardest thing about the install. Oh and make sure you torque them to the specified specs. __________________ Perception and Reality are Two totally different Things.
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09-16-2013, 10:16 PM	#4
mhjeep First Lieutenant 136 Rep 363 Posts Drives: 2018 M3 Join Date: Jun 2009 Location: Dallas, TX iTrader: (0) Garage List 2015 BMW M3 [0.00]	thanks for the quick responses.
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09-16-2013, 10:31 PM	#5
M3 Esq Automobilist 418 Rep 2,631 Posts Drives: E70 X5, 911 GT3 Join Date: Aug 2007 Location: CT iTrader: (12)	I did my own install and yes I used the locktite. Search under my threads I have a DIY on installing the belts. It's a real PIA.
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09-17-2013, 03:12 AM	#6
Hujan Brigadier General 608 Rep 3,740 Posts Drives: M3 Join Date: Apr 2013 Location: . iTrader: (16)	Tried the install myself two weeks ago. Could not get the front belt on at all, even with a friend to hold the tensioner down. Broke the power-steering pulley in the process. Took it to a local BMW dealer and they could not get the belt on either. I'm really wondering if I got the right belt, it's that tight. Not sure what to do next.
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