Flywheel Reconditioning

[@user-ll6qf3sd1z]

This is the most precise video I've seen, great work. Experience is king.

[@Kavster92]

I literally sat back with such a huge smile on my face watching him center the flywheel and measuring the run out. I was born to be a machinist and I'm stuck working in IT! ... SOON.

[@balloney2175]

And you earn more I guess.

[@jakefriesenjake]

Machining is fun..... With cool one off's...... Not production tho. Just like most jobs, they suck if you do it enough....

[@wpyoga]

Nice video. However, I would like to suggest two things: 1. After you have tightened the center screw, you should check the centering again. 2. You should check the level of the flywheel surface with the dial indicator as well. If it's not completely flat, you should use shims between the spacer plate and the flywheel.

[@DrivelineMaster]

Good idea's. (1) would be easy to do. (2) a little more difficult. I can't check the level against the flywheel because it is not level. That is why it is being refaced. I guess I'm relying on my equipment to be calibrated and level. The mounting base and mounting plate. If they are true and running flat those are the important parts. Even if the flywheel mounting surface where the bolts are is not perfectly flat that is OK because I'm machining the flywheel flat to that surface. It is that surface that also bolts to the crankshaft so as long as the two surfaces are parallel there should not be any problems unless the crankshaft surface itself is damaged and untrue.

[@matteo3893]

Looks like a Toyota flywheel 😎 I like your set up. cool video!!

[@jameshester3831]

Most step dimensions on Toyotas are 20,000 according to the book

[@matteo3893]

@@jameshester3831 20,000? I thought they were 0.020”

[@matteo3893]

@@jameshester3831 20,000ths I got ya

[@arvacon]

@@jameshester3831 Which book is this? What is its title?

[@tsgarage2382]

I would love to have my flywheel machined by you, I got 2 that need turned

[@Limeayy]

Awesome demonstrations, i kinda got lost still alittle, i know how to use a dial indicator its just them moving the straight block with the dial indicator from one surface to the next lol.

[@alphatech870]

Wow that was awesome 👏👏

[@KW-tj3uu]

Did you see him check the mating surface for burrs, dings or flatness? I didn't. I guess sandpaper is all you need.

[@DrivelineMaster]

No, I didn't point that out but I felt and looked when I cleaned it up with sand paper. This surface is not very likely to be dinged or burred not that it's not impossible.

[@engrddelacruz]

immediatly browse if where to buy that dowel pin removal :)

[@DrivelineMaster]

The tool I used was purchased from Snap-on however an internet search using the key word "Dowel Pin Removal Tool" got several hits of all different price ranges.

[@arvacon]

So are they selling shims that are just 0.003" or in this case it doesn't need at all? I bet the best approach would be to machine the flywheel based on the thickness of the shims you can find on the market.

[@DrivelineMaster]

The ones I have used in the past are made by FitzAll and the thinnest one is 0.025". I have never had a problem installing 0.025" even though only 0.008" to .010" has been removed. Normally from the original thickness 0.004" is not enough to need a shim. The problem is with a high mileage vehicle when your not the original owner knowing how much off your flywheel is from the original thickness. You would need to measure from the surface on the flywheel where it mates up against the crank to the friction surface. That can be done but the problem is there are no OE specification of what that value is on a brand new flywheel. At least no one is sharing that information that I know of. It's not in the factory manual.

[@DrivelineMaster]

PS. on older vehicles with adjustable clutch cables or linkage this Doesn't matter as much because you can adjust it out. With a hydraulic clutch release mechanism you are limited to the travel of the slave cylinder and master cylinder.

[@arvacon]

@@DrivelineMaster Yep, I've researched those specs too, without success. I don't understand why someone at least, that selling these parts, wouldn't share that information with us...

[@DrivelineMaster]

@@arvacon Lets say you decide to open a company that sells reconditioned flywheels. There are not specs on what the original size is or how much can safely be machined before a shim is needed or the flywheel needs to be replaced. You make an investment in a bunch of brand new flywheels and you measure each one. Now you know the thickness of each flywheel. Now you machine off .002" and put the flywheel into the vehicle and you test the operation. You note that .002" off the clutch still functions properly. You now repeat that taking .002" off each time until you find the thickness where the clutch will no longer function properly. You spent all this time and research and you now do this for every flywheel part number you stock. Would you give that away? What I don't understand is why the manufacture doesn't publish that information. They obviously know what the new thickness is and I'm certain their engineers knowing each vehicle could calculate a minimum thickness where the clutch would still function properly. They may even already know that but they won't share it.

[@_UserUser_]

​​​@@DrivelineMaster​ I understand the reason that a company like the one you discribe, doesn't give any details about them, but there are other stores that they just sell parts, so I guess that guys will not have any issues if they add dimensions to their selling products. As for Toyota, I agree too, that it is really weird that this info is not in their service manual, but from the way these are written, you can easily see that some details are not described by purpose, so they just tell them to the shops via seminars probably...

[@dudleybarker2273]

great demo, thanks

[@juancruz6289]

hola ,quisiera saber como adquirir la compra de la herramienta extractora de pernos o el contacto de quien la comercializa . gracias .

[@DrivelineMaster]

Esta es una herramienta de extracción de clavijas a presión. No sé el número de pieza, pero hay varias otras marcas que deberían funcionar. Herramienta de eliminación de Google Dowel Pin Removal Tool. ( In English since I used google to translate into Spanish. This is a Snap-on dowel pin removal tool. I don't know the part number but there are several other brands that should work. Google Dowel Pin Removal Tool.)

[@balloney2175]

So just sanding it properly won't work?

[@tonygarcia3832]

DONDE CONSIGO EL EQUIPO DE EXTRACCIÓN ?

[@casadelclutch2590]

Could you tell me the name of the tool you use to extract the guide pins, thank you

[@DrivelineMaster]

This tool is called a Dowel Pin Puller or Dowel Pin Removal Tool. Any search engine will provide results.

[@SuperJason225]

Where’s the books for correct specs? How do you know that is the correct step spec or how much you can grind off with going below minimums?

[@DrivelineMaster]

Automotive Engines Rebuilders Association (AERA) does publish a step specification manual but believe it or not the factory does not publish a thickness specification or step specification or any recommended measurement methods. I inquired with a flywheel re manufacturing company once and they said that they have developed their own thickness specifications and measurement techniques. They told me that this was propriety and a company secret. It's pretty standard practice to measure the step before machining and duplicate that step measurement for after machining. I know, I would love to have a spec book to reference.

[@merkantelismo]

If this was a used flywheel, then that measured step would be less than the oem spec? Or at least check if that is within tolerance.

[@DrivelineMaster]

That is correct if the flywheel is badly worn. Typically if the clutch is replaced before it's completely worn out you can use the current step measurement. The only place I know to get step specifications is from AERA (Automotive Engine Rebuilder Association) PRO-SIS system. I'm sure there are other resources.

[@miroslavskapik7720]

good video,but flyweel are made in line production,in my company we make abot 220 pics of flyweel for eight hour,some are good some are bad dipends who is working

[@gilbertoflores7340]

What is the name of the tool to remove the steering wheel guides

[@DrivelineMaster]

There are no steering wheel guides on the flywheel. You might be referring to the the dowel pin removal tool that I used to remove the dowel pins from the flywheel. The one I used came from Snap-on but there are other brands out there.

[@b.t.6345]

Is this cost-effective? Wouldn't it be cheaper to purchase a new flywheel?

[@DrivelineMaster]

Sometimes it's better to buy a new one however refacing typical cost between $35 - $50 and New on average $85 - $150 with some up over $200.

[@jakefriesenjake]

@@DrivelineMaster especially if they are billet sfi certified

[@arvacon]

@@DrivelineMasterI wish I could find one that cheap. In Europe, they start at 400 euros and up... We don't have any of them in Greece, though.

[@hemtet5500]

Hi has a Dmf flywheel ever been reconditioned?

[@DrivelineMaster]

Yes, but it's not recommended, very tricky. I have not done it but when I had it done they would not give me any type of guarantee. Personally I would not be able to provide any advice on how to accurately recondition a Dual Mass Flywheel.

[@ZilvinasVilutis]

Where can I ship my flywheel to get this done? :)

[@DrivelineMaster]

Search your local area for machine shop or often a local parts store can do this for you or knows of a place that can. If you have NAPA parts stores in your area this would be a good place to start.

[@IndianTruckWorkshop]

Vary nice 👍

[@barneybetelgeuse6273]

Good job mate 👍

[@balloney2175]

I researched and said if you smell something like burning, time to replace flywheel.

[@DrivelineMaster]

Not always true. Really depends on what is burning, how much heat and even if the smell is even from the clutch. Burnt flywheels can be reconditioned but as I replied new is always better than reconditioned.

[@soldiersvejk2053]

Excellent video！

[@mongomay1]

how is it re-balanced after grinding?

[@DrivelineMaster]

Flywheels are typically not re-balanced after reconditioning the disk face. I have never had a vibration problem. Similar to a brake rotor or drum after machining. They too are not re-balanced.

[@balloney2175]

If you ask me, I end up grinding my teeth with madness.

[@jolilahmed8399]

Rate koto

[@kamelalfa3976]

comment rèparer volant voteure faire Des clacment

[@MuhammadAfzal-jm6cw]

Good 👍

[@paugasolina5048]

do i need to do this when i have an automatic transmission

[@DrivelineMaster]

No. This is only for manual transmission vehicles that use a clutch.

[@liamcasey3]

Oh well....i dont jave a fly wheel grinder...but thanks anyway!

[@DrivelineMaster]

Not your average tool but I wanted to make something educational.

[@liamcasey3]

@@DrivelineMaster I will consider myself educated, and not the first time I have been referred to as an average tool ;-)

[@nakulah]

liam casey LOL

[@fakiirification]

or you could just use a brake lathe and be done in 1/4th the time =P

[@DrivelineMaster]

I have used a brake lathe in the past and the cutting bits will not take out a hard spot which could make it useless. Some lathe companies make or use to make a grinder attachment for the lathe that is used for flywheels. Some flywheels are just too large for a brake lathe. The intent of the video was to demonstrate to demonstrate how to properly use the machine as much as it was to reface the flywheel. Grinding is always preferred to a cutting bit for a flywheel surface.

[@kakkiaanen]

.002 length of a fingertip noice

[@DrivelineMaster]

I'm not sure how or if a response is required to this comment.

[@rectificadosytorneria1255]

Engine Flywheel Grinding studio.kzbin.infoN4440Va-JlM/edit

[@DrivelineMaster]

This video does not grind a flywheel but instead uses a cutting bit like cutting or machining a brake rotor. If the flywheel has hard spots created by excessive heat cutting can't remove them but grinding will. Cutting also leaves small spiral grooves almost like a threaded screw and it's not the preferred method to recondition a flywheel surface.

[@adamsorell4851]

do they make magnetic chucks for these?

[@DrivelineMaster]

I'm sorry I do not know. I would suspect that it would take a very powerful magnet to keep it from moving and it would be very tricky to center the flywheel.

[@arvacon]

@@DrivelineMaster Except if it is an electric magnet with on-off switch.

[@DrivelineMaster]

@@arvacon Even with an electric magnet that is operated with a switch. I stand by my original answer. I don't know if it would keep the flywheel from moving during grinding and I would think it would be very difficult to center to a place where run out was less than 0.002". Same reason they don't use powerful electric magnets on a lathe to hold the metal. If it slips even 0.001" during grinding or machining it throws everything off.

[@backyardbasher]

lol @ removing same dowel 3 times

[@DrivelineMaster]

Yup, You are very observant. I saw no need to video that process 3 times. I try to keep my video's as short as possible so I don't lose the viewer interest.

[@optimistichorizon]

I went to check to see if anyone else caught this before I posted a comment.

[@balloney2175]

I love this video, but I decided to buy a new one.

[@triariicat8448]

watery coolant

[@DrivelineMaster]

Yes, it's water based but not just water. It's specifically designed for grinding metal and is dried off after the machining is completed.

[@triariicat8448]

needs more coolant, too watery, will rust machine @@DrivelineMaster