Autotalent
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls

Post Reply
 
Thread Tools Search this Thread
      05-05-2024, 03:25 PM   #45
jaylazy2020
Captain
jaylazy2020's Avatar
Ireland
267
Rep
650
Posts

Drives: BMW F82 Comp
Join Date: Oct 2020
Location: Dublin, Ireland

iTrader: (0)

I had planned to change both belts and all three pulleys but I was struggling to get a 21mm on the crank hub to turn over the engine in order to get the water pump belt off.

One advice I can offer is that it’s good to test out all your torque wrenches and extensions before you commit to it as I found I needed to try a multitude of 3/8 1/2 and 1/4 drives to get the access and be able to get the hex or torx sitting square as the access is so so tight.

Twice I dropped a hex nut with a small extension but somehow I was able to wiggle my hand down and get it.

So even though I knew just changing the belt tensioner alone was not ideal to fix my belt chirp at idle I decided to do it anyway and bending the lock pin to the profile of the new tensioner really helps. I got the one out and new one in quite quickly.

The majority of the chirping sound comes from alternator area.

So if like to get a long socket bar to be able to access crank hub and then tackle the water pump belt, serpentine belt and two remaining pulleys.

Like some have said try tension on the new tensioner was notably stronger
Appreciate 0
      05-12-2024, 04:44 AM   #46
jaylazy2020
Captain
jaylazy2020's Avatar
Ireland
267
Rep
650
Posts

Drives: BMW F82 Comp
Join Date: Oct 2020
Location: Dublin, Ireland

iTrader: (0)

Got my complete belt and pulley change done last night

I was nervous about removing the oil lines as I thought oil would go all over the harmonic balancer and I wouldn’t be able clean it and I’d be worse off!

Anyway I watched some mossel man thermostat install videos I decided to go for it.

So glad I did.

All changed and chirping sound is gone! I’m guessing it was the idle pulley as that seems to be the culprit. Although I was worried it was the alternator as the sound appeared to be coming from there.

I was wasting my time trying to get access to the idle pulley with a T50 so once oil lines were removed and the the rubber connection at the bottom allows them to be set to one side.

It was so much easier and I was able to torque everything to spec

Turning over the crank hub to release tension worked exactly as per videos although I got a fright when it popped back when I put tension back on it!

One thing that worked well for me was to put surgical gloves over the ends of oil lines to stop oil spewing out when manoeuvring the lines to the right.

All in all I spend €300 on oem parts and Bmw wanted €3k to do the same job!

So the €2700 saved must be spent on stage 3 turbos now!
Attached Images
       
Appreciate 1
jfritz271126.50
      05-12-2024, 07:38 AM   #47
jfritz27
Major
jfritz27's Avatar
1127
Rep
1,322
Posts

Drives: 2018 F80 CS
Join Date: Dec 2014
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by jaylazy2020 View Post

So the €2700 saved must be spent on stage 3 turbos now!
Nice, that's always a great feeling.
Wouldn't cracking the filter housing and engine fill caps help to vent out the oil from the lines to minimize spillage?
Appreciate 0
      05-12-2024, 07:42 AM   #48
jaylazy2020
Captain
jaylazy2020's Avatar
Ireland
267
Rep
650
Posts

Drives: BMW F82 Comp
Join Date: Oct 2020
Location: Dublin, Ireland

iTrader: (0)

Quote:
Originally Posted by jfritz27 View Post
Nice, that's always a great feeling.
Wouldn't cracking the filter housing and engine fill caps help to vent out the oil from the lines to minimize spillage?
In the words of The Coach in The Gentleman played superbly Colin Farrell

“NOW YOU FUCKING TELL ME!”

only joking. Prob would have but I don’t have an oil filter housing tool.

Must get one for next oil change.

Cheers.
Appreciate 0
      05-12-2024, 06:12 PM   #49
jfritz27
Major
jfritz27's Avatar
1127
Rep
1,322
Posts

Drives: 2018 F80 CS
Join Date: Dec 2014
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by jaylazy2020 View Post
In the words of The Coach in The Gentleman played superbly Colin Farrell

“NOW YOU FUCKING TELL ME!”

only joking. Prob would have but I don’t have an oil filter housing tool.

Must get one for next oil change.

Cheers.
Hahaha..... yeah, if situation permits, timing this job along with an oil change seems ideal
Appreciate 1
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:52 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST