Preparing A Racecar For The BIGGEST Race In The World!!

Follow along as we get the Nielsen Racing LMP2 car rebuilt after the Barcelona European LeMans Series race and get it ready for the LeMans 24hour.

[@Thepartguy]

The extra master is for the corner workers if the car stops on track. Push a button on the side of the car and it pushes in the clutch.

[@TheMotorsportMechanic]

Well done your absolutely correct 👍

[@effisjens1776]

The dog surely is the most important team member no ? 😅 Free cuddles during practice and able to distract rival teams with it's cuteness 🤣 The livery for this year's le mans looks amazing! Best of luck!

[@TheMotorsportMechanic]

A key team member yes, Thanks

[@snail3]

Can't wait for the race to see the car in action! Great content, love it

[@TheMotorsportMechanic]

Thanks, not long till the race now

[@Gjydcnkuikbvfdf]

Awesome video, more of this content please!!

[@TheMotorsportMechanic]

Thanks and will do

[@K1VV1939]

How do you know it starts? What if during the strip down and reassembly you didn't re-connect the cam-load return spring? The Most Under Rated part of a Race car and you didn't try the cam-load return spring?

[@alexpaker5335]

Nice work mate.keep it up😊❤🎉

[@TheMotorsportMechanic]

Thanks will do

[@victorholguincabello2703]

Great content!! I just discovered your channel and i love it! I am also a motorsport technician but never worked on an LMP2 car yet. sure this got me excited to try them. cheers keep up the good work! and se ya around the track!

[@TheMotorsportMechanic]

Ahh nice what series have you worked in?

[@victorholguincabello2703]

@@TheMotorsportMechanic well I have 3 years experience on regional rallyes, did a lil bit of ERC and WRC (with Alberto Batisttolli), and some private testing with radical cars, TCRs and GTs. Not much but I'm 21 years old and getting my hands into everything I can.

[@Richspjones]

Enjoyed that, cheers. I bought one of the 24 Omologato watches that will be in the car during the race; not sure where the watches will be stored in the car; do you know? If there's a shunt (god forbid), the watched might get a bit fu*ked, but that's racing I guess! Good luck at the Grand Fromage; I'll be shouting on the team from Singapore, as I couldn't get back to be there in person.

[@Th3Mafia]

that diff is so similar to an RC diff ... im surprised how small the planetary gears are :o i had no idea

[@TheMotorsportMechanic]

Yeah I guess so 👍

[@K1VV1939]

Have you tested the Ejector Seat? - because as far as we've seen you made no attempt to test the Cam Load Return Spring -!!! 🤣

[@WilliamsSupport]

Great video. It always amazes me how much you know when it comes to all aspects of the car. Will take a guess and say is the cockpit master cylinder got something to do with the steering. Seen the Le Mans livery and its stunning.

[@TheMotorsportMechanic]

Cheers and work working every day on race cars you soon learn all aspects of it. Nope it has nothing to do with the steering.

[@johngreen8693]

Great video again and really interesting (imo..). Can't believe how dirty that air filter is. I wouldn't have expected the interior to be stripped! Fourth master cylinder - no idea - gearbox mechanism/ gearchange?

[@TheMotorsportMechanic]

Thanks and glad you enjoy it. Yes the air filters do get dirty quickly, not exactly the gearbox mechanism but close

[@WilliamsSupport]

Keep trying is the third master cylinder got something to do with the internal car jacks.

[@TheMotorsportMechanic]

Good guess but not his to do with the jacks

[@robair67]

Great video. Was wondering if the front-rear axle loads change disproportionately with road speed/downforce, then manually adjusting the brake bias would be extra workload for the driver. So I'm guessing the extra master cylinder could be for ecu controlled rear brake servo via pneumatic pressure...?

[@TheMotorsportMechanic]

Nope it's nothing to do with the brake system. The bias adjuster is a normal one and is nicely positioned just to the left of the steering wheel for easy adjustment

[@robair67]

@@TheMotorsportMechanic that servo(?) on the end of it is getting me! Anything to do with clutch (for fast, no-pedal gear changes that won't wear out the dogs in the 'box, as it's an endurance car)?

[@TheMotorsportMechanic]

Good guess closest so far but not exactly correct. With the paddle shift system there is no need for the clutch pedal (only used when pulling away and stopping) when changing gear. Keep it full throttle and pull the up shift paddle and there is a very quick electronic cut in the engine that takes the load off the transmission enough to change gears without damaging the dog rings.

[@thomasfelten23]

Fantastic 👏Good luck at Le Mans

[@TheMotorsportMechanic]

Thanks 👍

[@ty00123]

That extra master is getting to me. I imagine that the actual shifting mechanism on the transmission isn't dissimilar from a motorcycle transmission with a shift drum; the shifter isn't hydraulically controlled, is it?

[@TheMotorsportMechanic]

The shifting mechanism is similar to a motorcycle but it is controlled by compressed air.

[@K1VV1939]

Unless you tested the Ejector Seat and the Cam Load Return Spring in another video - 🤫

[@neilgardner5437]

Great video! It’s nice to see these cars in bits - in a good sense! Is the extra master cylinder for the gearbox?

[@TheMotorsportMechanic]

Thanks and sort of but not exactly the gearbox

[@Th3Mafia]

do you inspect every part of the dismantle ... and is that the reason you strip it all down?

[@TheMotorsportMechanic]

Yep, the strip down is to inspect all the parts and change any parts that are up on milage

[@beershi2916]

How did you become a competition mechanic? :)

[@marktucker208]

Hmmm I can't see any ride height sensors here.... 😂 Do you use the same engine for the testday and the race or will you change it after the qualifying sessions? Is this "fourth" master cylinder a system so that the marshals can force the car into neutral if the car is stuck in gear?

[@TheMotorsportMechanic]

The engine was a fresh rebuilt one which we put in just before the event in the workshop and will be the same engine for the whole event. Well done first correct guess on the 4th master cylinder 👍

[@marktucker208]

Nice job in qualifying, good luck for the race!

[@TheMotorsportMechanic]

@@marktucker208 thanks 👍

[@baxwell3540]

is that master cylinder for the power steering?

[@TheMotorsportMechanic]

Nope it's not for the power steering as the power steering is electric on this car.

[@littlechicago7482]

Just found your channel, just subscribed. Is that fourth master cylinder for a hand brake?

[@TheMotorsportMechanic]

Thanks and nope it's not for a handbrake

[@martinkeene]

4th master cylinder is interesting my first thought was BBW, but then remembered these don’t have hybrid power, so not that. I can’t think of anything else hydraulically controlled 🤔

[@TheMotorsportMechanic]

Yeah no hybrid systems on the lmp2

[@annabelleb7601]

Floki!!!!!

[@poorfordtransitowner1627]

Is the slave cylinder for the fire extinguisher system?.......edit.....have a new subscriber

[@TheMotorsportMechanic]

Thanks for the sub and nope it's not but you are close with that guess

[@cuthberter]

Master cylinder for the gearbox?

[@otanica]

ride height proportioning valve?

[@TheMotorsportMechanic]

Good idea but nothing to do with ride height.

[@ShotgunAU]

legit

[@philipbennett2183]

Would like to of seen all components being rebuilt and reassembled. Title does say "Building A Racecar".

[@TheMotorsportMechanic]

Yes, valid point, I did miss the rebuild of the car due to other work commitment's. I have changed the title so it's not to be misleading. I also have another video which has some more clips of the actual rebuild and I will try and get more of the rebuild in future video's. Let me know if there's anything else specific you would like to see in the future. Thanks 👍

[@JackNorm]

First

[@aldovalencia6475]

Xd

[@Morrocoyonazo1]

Aprende a grabar muchacho , que tu vídeo no se puede mirar , marea mucho !

[@suprememikewhat]

First comment waheeeeeey

[@suprememikewhat]

Second comment 😭 can't wait for the next video the motorsport mechanic. You're my hero!

[@yessir6325]

at 9:57 is it for a pneumatic paddle clutch?

[@TheMotorsportMechanic]

I would say your pretty much correct with that. It is for the clutch and is operated with the marshal switch which kills power and operates the clutch so the car can be pushed to a safe place if needed

[@yessir6325]

@@TheMotorsportMechanic w’s in the chat boys