E55 AMG supercharger pulley swap, the easy way!

[@davidhinton3595]

If you apply 40 lb ft to the end of a wrench haven't you multiplied to torque at the bolt?

[@Motorsportsgeek]

You didn't go to school did you now cuz the lenght of that wrench will change the torque value on the pulley bolt.

[@EMFAudio]

I did and that's why there are captions on the video indicating that and specifics. I can't help if your viewing device isn't smart enough to display captions.

[@petecotter6790]

Looking at the multiplied leverage, would be around double the torque applied to the bolt! Ha!

[@esteemedenergy]

Your losing torque with that setup, so your likely more at 34-36lbs.

[@22muhammed22]

with a longer arm and the same force, you have more torque. it is almost twice the length, so it will be around 70-75lbs

[@murk1352]

Yup…💪🏻

[@Oldbass40]

German engineers would suck their teeth seeing you use non metric tools. LOL

[@EMFAudio]

ALL of the information I've found never mentions a metric size even, which shocked me. There is 0.2mm difference in 15/16" and 24mm so it is safe to do. However, because of bolt and nut availability, I figured it would be safer to use SAE for this particular task. Perhaps if I found German documentation I could have found it was 24mm, I had to figure that out on my own to mention it!

[@Oldbass40]

EMF Audio Very interesting experience! And you became an engineer with those hose clamps yourself

[@EMFAudio]

Hose clamps have been done, my leverage mechanism to get torque where a socket won't fit would be the engineering feat in this one!

[@Oldbass40]

EMF Audio That's true

[@eric7hamlin]

fyi your torque method would yield an incorrect torque spec on the bolt.

[@SergejKolmogorov]

What is the right torque to tight up the pulley?

[@frankbarrett2019]

Mr, Mercedes-Benz Mechanic doesn't even know that adding length to his torque wrench will increase the torque on the bolt.

[@EMFAudio]

Mr. KZbin Expert doesn't know when annotations were remove from videos, information got removed from videos that weren't embedded in the video.

[@downshiftlabs_]

Thanks, this is great.

[@LOONIBEATS]

I use an impact to take it off easy

[@bambamb43]

exactly

[@LOONIBEATS]

@@bambamb43 yea man all I did was lift the fan up a little, slide the extension in and bam 650lbs of nut busting 🤣🤣🤣🤣🤣🤣🤣🤣

[@eyedrcarlson]

If you check, the blower is American made and i believe the pulley/clutch assembly bolt is SAE 15/16th". Also, replacing assembly could be difficult but can be aided by using graphite dry powder (lock lubricant) applied to the bearing seat or inner bearing race.

[@MichaelThomas-zx6es]

You didn't check the gap when you were finished, why not?

[@EMFAudio]

I used the old shims, so it would be shimmed correctly. I'm years on it without throwing a belt or irregular wear so I'll call it good. If it's not right, you'll know very quickly.

[@kantg789]

Great video!!Thank you for that!!! I tried the 24mm spanner and is slightly loose so I think you better use the 15/16 spanner and 15/16 socket for the wrench as the 24 mm is slightly bigger. I bought all the materials except I cannot find that special bolt which you use to connect the spanner with the wrench.Do you have any links from where I can buy it??

[@EMFAudio]

It isn't a special bolt, it's a bolt with a nut on it.

[@emilmetzger4177]

What am I missing here? Why can't you just put a 15/16" socket and torque wrench directly to the pulley bolt?

[@TW-bx6xs]

It doesn't fit unless you have a very low profile socket. The radiator fan shroud is only 40mm from the bolt.

[@davidhinton3595]

The fan shroud is in the way. I used a crows foot wrench.

[@lancebangwell]

No room I tried as well

[@AlexHernandez-xh8ei]

My clutch spins even with the clamps on the bolt is really on there

[@kyleflowers2641]

Same here. I'm waiting for a 5.5" t-bolt clamp to come in hopes of getting it off. Damn thing is super tight! Were you able to get yours off? What'd you do?

[@jasmeetoberoi9231]

The 40 ftlbs is calibrated by the length of the torque wrench by adding length it changes .the torque wrench ur using is about 2ft length uv added about a ft. Correct me if im wrong.

[@EMFAudio]

Jasmeet Oberoi annotations have addressed that, a 90 degree angle must be used for accurate torque. It was hard to position and film.

[@redbaron2448]

anyone know how to measure a supercharger pulley to see what size you have example 90 mm 85 mm 77 mm

[@EMFAudio]

Calipers

[@j.badinter988]

No need for such extension to torque the nut, a direct torque wrench works fine. Please stay in metric units. Anyone willing to work on that car should get a metric tools set.

[@EMFAudio]

The torque wrench doesn't work when it won't fit between the bolt and fan shroud. I didn't do it because it looked fun. Most people who routinely work on cars have SAE and metric, not everybody does and use what they have.

[@amg_boyy1171]

@@EMFAudio 3/8 torque wrench set up fits just fine

[@ParthPatel-zy4pg]

why couldn't you just put the socket directly on the bolt to torque it? looks like there's plenty of space

[@EMFAudio]

There isn't enough space, not even close. It hits the fan shroud.

[@MrRGM10]

Where to buy lighter pulley?

[@markcampbell4352]

The torque wrench should have been held at a 90 degree angle to the combo wrench so that the torque setting would have been accurate. Held straight the torque applied is way off.

[@jonhsmith1902]

Using the smaller 84mm pulley does it require reprogramming the computer?

[@EMFAudio]

It does not.

[@HISUSI]

👍👍👍

[@VJDM]

great vid brother.

[@karenmurillo370]

Do you know we're I can find a manual?

[@gabrielcalin4238]

Hello! How about the gap . I have a clk 32amg ang i want to change the pulley and i don know the gap measurements

[@EMFAudio]

I used the shims I had and it worked out. I don't know what the gap measurements are but if you're throwing belts, it's not shimmed correctly.

[@mujhidkabsh6679]

Bro for some reason the pulley won’t go back in it’s stuck in the middle

[@EMFAudio]

Remember, it's keyed. Make sure you have proper alignment.

[@pfoxhound]

it will be different torque with that length

[@EMFAudio]

Torque click on the wrench doesn't change with leverage.

[@ahmeddabdalla6218]

The click will not change but the applied torque will, as you have increased the length.

[@300zVinh]

With all the mods you mentioned including this 84mm. What would be your guess on your gains? Thank you

[@EMFAudio]

IIRC, the 84mm pulley and cooling upgrades, and tune that are needed for that are good for around 50 HP. Mid length headers which I also have on there now are another 25ish.

[@m.pietro9087]

Do you have any other performance upgrades other then this pulley and tuning? Have you noticed the car more powerful at part throttle?

[@EMFAudio]

Yes. Headers, tune, heat exchanger upgrade, pulley, belt wrap kit, and split cooling. The pulley has more power across the board really.

[@m.pietro9087]

EMF Audio thank you.

[@Sage_TheAmericanPitBullTerrier]

What size pulley did you have on it before? And is that the factory size belt or smaller one!

[@EMFAudio]

It was the factory pulley, I'm not sure what size it is. You can use the same belt length, if you did a 77mm pulley you'd need a shorter one I think. I say the same belt length because I have a belt wrap kit also which needs a longer belt, but I didn't change the belt length as a result of the pulley ( I think, I did this a while ago, I don't recall having to get a new one).

[@duke1977]

Hello there is it true that these motors are made to last 400k

[@EMFAudio]

I've seen several people with over 400k, never rebuilt, no issues. It's a really great engine.

[@brianfarmer1127]

Where did you get the part from?

[@EMFAudio]

The pulley itself? I'd remember if I heard it but I can't recall, that was several years ago.

[@elevatedperformance]

Couldn’t u just add a pipe to the torque wrench

[@EMFAudio]

Why would you? The wrench goes on the pulley, the torque wrench is there only to get the appropriate torque (which also has to be 90 degrees to the wrench for proper torque). Adding leverage to the torque wrench isn't necessary.

[@elevatedperformance]

EMF Audio okay but couldn’t u should get the torque wrench on it and just torque it to spec. I’m confused why the torque wrench or torque gun. Wasn’t applied directly to the pulley.

[@EMFAudio]

@@elevatedperformance There isn't enough space to get a socket and torque wrench in there. The fan shroud/fan is in the way.

[@anon8613]

He all tries to play it smooth and doesn't even mention the washer in front of the pulley that he lucky he didn't drop it lol wow....youtube university.

[@pjefsquad]

can u driver the car to the tuner after the pulley install as long as u drive slow moderate speeds?

[@EMFAudio]

pjefsquad Yes, I tuned mine at the same time though. Also I was already tuned so it was a small adjustment in the tune.

[@pjefsquad]

EMF Audio thanks for that much appreciated,is pulley and tune your only mods?

[@EMFAudio]

pjefsquad I also have a belt wrap kit, split cooling, and I have a bigger heat exchanger to put on still.

[@pjefsquad]

EMF Audio is the heat exchanger like 200$? what do u mean by split cooling? is that and heat exchanger hard installs?

[@EMFAudio]

pjefsquad heat exchanger is $400. Split cooling is separating the engine coolant circuit from the supercharger coolant circuit.

[@BrainjuiceGER]

77mm?

[@EMFAudio]

Mert Bulgurcu This one is an 84mm.

[@jacobe3343]

I broke the strap wrench and still didn't succeed

[@EMFAudio]

262ners you might notice I didn't use a strap wrench as part of what works.

[@jacobe3343]

EMF Audio yeah I seen that. Just dissipointed the proper way to do it failed me.😂

[@Bastard_Operator_From_Hell]

This Is about the riskiest way of doing it. You’re risking to break off the aluminum cast on the Kompressor where the clamps push against. Too many have ruined a $5500 Kompressor that KZbin mechanic way. Your Pulley is made from aluminum and comes from Shardul Meta from Texas. He just sells them to Eurocharged and they mark them up and claim it’s “theirs”. The rivers are junk and eventually will come lose and will shred your engine cover. Last but not least your belt wrap kit is junk too. On a positive side: you speak clear, don’t cuss and dint speak 800 words a minute.

[@EMFAudio]

If the supercharger broke, the clamps were too tight. I've never heard of anyone breaking those. As far as being junk and breaking and causing problems, I daily drove the belt wrap kit and pulley for 3 years without a single issue. Flawless service from the time of this video till a month ago when I sold the car, probably still fine now. Just because you paid 3x more for someone else's doesn't mean it's better or the cheaper are bad.

[@mero8177]

Don’t do that it’s not right

[@juniorgambino19]

L0l

[@emilmetzger4177]

What am I missing here? Why can't you just put a 15/16" socket and torque wrench directly to the pulley bolt?

[@EMFAudio]

Emil Metzger You would have to remove the fans to have enough room.