Category
🚗
MotorTranscript
00:00 (upbeat music)
00:02 - Welcome back to High Rock Garage,
00:21 presented by Lincoln Tech.
00:22 We're here today with our OBG Chevelle.
00:25 Now remember when we took this car
00:25 to the drag strip last time,
00:27 it only burned one rear tire.
00:28 Now that made for slow ETs and a little bit slower
00:31 in mile per hour than we would have wanted.
00:33 The real essence of the upgrade today
00:34 is this Auburn differential.
00:35 Cars that burn one wheel aren't impressive,
00:37 they're no fun at the drag strip,
00:39 they're no fun doing burnouts
00:40 in your high school parking lot.
00:41 What you wanna do is you wanna burn both the back tires.
00:43 This Auburn LSE is gonna let us do that.
00:45 It's got a Konan spring set up,
00:47 it's gonna lock both tires under load.
00:49 Beyond that, we went through it,
00:50 these axles are starting to wear out,
00:51 there's wear on the bearing surface,
00:53 so we upgraded those to some beefier axles
00:55 that are brand new.
00:56 We are also upgrading the yoke,
00:57 this was starting to wear out as well.
00:59 And for gears, we're gonna take the 273 that was in there,
01:02 upgrade it to a 373,
01:03 it's gonna make the car accelerate much harder,
01:05 it's gonna be much more fun to drive.
01:07 The following parts can be found at opgi.com,
01:10 but first, let Clarence Barnes blow your mind
01:12 with this quick tech tip from Lincoln Tech.
01:14 - Let's talk TIG.
01:20 TIG welding, while more expensive to get into
01:22 than MIG welding, offers more control over the weld puddle.
01:25 And in the right hands,
01:26 the TIG torch can yield the most beautiful welds.
01:29 TIG stands for tungsten inert gas.
01:32 Tungsten is located inside the torch,
01:34 and unlike a MIG welder,
01:35 which automatically feeds filler wire into the puddle,
01:38 TIG welding requires the user to feed filler rod
01:41 into the puddle by hand.
01:42 So it's torch in one hand, filler rod in the other,
01:45 and everything happens in concert
01:47 as the user operates the welder,
01:48 and a foot pedal, or button on the torch,
01:50 controls the amperage.
01:52 Now, a plus for TIG welding is that it's easier
01:55 to switch the setup from welding steel to aluminum.
01:58 All you do is just change the filler rod
02:00 and voltage polarity of the welder.
02:02 Now, if you wanna go from steel to aluminum
02:04 with a MIG machine, you'll have to remove the gun
02:06 and cable and just install a separate spool gun.
02:09 TIG welding also differs from MIG welding
02:11 in terms of the shielding gas.
02:13 TIG requires a bottle of 100% pure argon
02:16 for most applications,
02:18 while MIG utilizes a mixture of argon and CO2.
02:22 - Lincoln Tech can teach you
02:23 how to have a career working with cars.
02:25 See LincolnTech.edu.
02:27 (upbeat music)
02:29 - Before we can put all those fancy new parts in,
02:38 I've gotta yank this old rear axle out.
02:40 This is a four-link car,
02:41 so it's a little bit easier for one person to do
02:43 because you don't have to lift the axle
02:44 over the leaf springs
02:45 and get everything set up under weight.
02:48 All I've gotta do is remove the e-brake cables,
02:50 the brake lines, the drive shaft, shocks,
02:52 coil springs and control arms,
02:54 and as you can see, this thing comes right out.
02:55 Now we're gonna send this thing out
02:56 to get cleaned and painted.
02:57 We have an expert in the house today.
03:00 It is Frank from South Bay Truck and Differential
03:02 in Hawthorne.
03:03 He's gonna show us how all this stuff goes together.
03:05 Hey Frank, this thing looks great.
03:07 - Well, thank you, Tony.
03:08 - And so first step is putting the pinion gear in?
03:10 - Yes, we'll be putting the pinion gear in now.
03:12 We've already predetermined the shim
03:15 and pressed the bearing on.
03:16 - Gotcha.
03:17 - And so we're gonna add the crush sleeve
03:18 and go ahead and install that.
03:20 - So the shim goes on and then the bearing?
03:22 - The shim, the bearing, and then the crush sleeve.
03:24 - Got it.
03:25 - So we're gonna put the yoke in.
03:27 We've got the cylinder already.
03:29 Oil seal the new yoke.
03:31 - You're just having that yoke on the spline?
03:36 - All right, that looks like it'll do it.
03:40 So we've got the yoke on there.
03:42 The pinion's installed.
03:43 We're gonna put a new washer, new lock nut.
03:45 We are gonna add some thread lock to it.
03:47 And then we're not gonna be torquing this nut down
03:50 to how many foot pounds of torque,
03:53 but rather how many inch pounds of preload on the bearings.
03:56 - Right, so you're gonna measure how much torque it takes
03:58 to spin this bearing.
04:00 - Correct.
04:00 - Now is this something that someone could do at home?
04:02 Seems like you brought a lot of fancy tools here today
04:04 and probably 30 years experience.
04:06 - People don't sometimes do it at home.
04:09 Once in a while they get themselves in trouble
04:10 where they'll come to me for, you know, sometimes too late
04:13 and they've ruined a new set of gears.
04:15 But you know, they enjoy trying.
04:18 So we're looking for 14, 19.
04:20 (metal clanking)
04:23 And I'm right there, 15 inch pounds.
04:29 I kind of prefer that setting.
04:31 - Okay.
04:32 - We're good to go from there.
04:35 - After setting up the pinion gear,
04:37 we're gonna drop in a differential
04:38 with the installed ring gear.
04:40 So what would you normally do
04:41 to approximate the shims you want in there?
04:45 - Well, I started out with the original shims
04:48 and it just dropped right in.
04:49 - Yep.
04:50 Now is that something you'd wanna do
04:51 like a little bit tighter tolerance
04:53 for performance application?
04:54 - Performance application, a little tighter tolerance.
04:56 If this was a certain axle, like a Dana Spicer,
04:59 they make a big metal frame
05:00 that will actually spread the housing.
05:02 Therefore, so we want some preload in there.
05:04 - Gotcha.
05:05 And the idea is to avoid gear deflection
05:08 on the ring and pinion 'cause that--
05:09 - That's correct.
05:10 - That's how they break. - That's correct.
05:11 - That and that. - You don't have the preload
05:12 that under load, the gear,
05:13 the ring gear will push away from the pinion.
05:16 - Yeah, and then you can start eating teeth up.
05:17 - Breaking teeth up. - Yep, okay.
05:19 Before you can install a new diff,
05:21 you have to press on the new bearings
05:22 and bolt on the ring gear.
05:23 So at your shop, you warmed up the ring gear
05:25 and allowed it to slide right on.
05:26 - Warmed it up, it slid on easier,
05:28 cooled down, shrunk back down.
05:30 So here we can add or subtract shims
05:33 to make this pack either thicker or thinner.
05:37 - Gotcha.
05:37 - And so this pack's gonna go on the left side here
05:40 and this pack will go on the right.
05:43 And then from there, the carrier will drop straight in.
05:46 So from this point, I'm gonna ask you
05:47 to just kind of tilt the back a little bit.
05:50 - Sure. - But then I don't wanna
05:51 ease it into the finger.
05:53 - Gotcha.
05:53 (upbeat music)
05:56 - It's a little too tight, we're gonna pull it out.
06:03 We're gonna put in a slightly thinner set of shims.
06:07 Now, do you do that from both sides
06:08 or you're gonna move it left or right?
06:10 - We're gonna try to pull three thousandths
06:13 out of both sides. - Both sides, got it.
06:14 - Okay.
06:15 - Okay, now go ahead and lift it out.
06:17 - Yep.
06:18 - Okay, go ahead and set that aside.
06:20 - So that'll keep it centered where it was.
06:22 - Keep it centered, but it'll go a little bit easier.
06:24 So what we just got through doing there
06:26 was removing about three thousandths of an inch
06:30 from each side of the carrier
06:31 to make it go in a little bit easier.
06:33 We're gonna torque these bolts
06:34 and then we're gonna check the backlash with the gauge.
06:37 And let's get these torqued to about 75 foot pounds.
06:41 (clicking)
06:44 - All right, there we go, 75 pounds on each bolt.
06:49 And we're seeking six to 10.
06:52 - Six to 10 is ideal and we're at what?
06:54 Looks like seven, eight, maybe?
06:55 - About eight thousandths.
06:57 - So perfect, that's perfect.
06:58 So the closer you put these gears together,
07:01 you're going to decrease the backlash
07:03 and the further apart you push them,
07:04 you're gonna increase the backlash.
07:06 And you would just use shims to adjust that
07:07 until you get exactly between,
07:09 you said six and ten thousandths?
07:11 - Correct.
07:11 - Got it.
07:12 - A lot of your bearing kits, install kits,
07:14 will come with a little handy little sample of grease,
07:17 which is usually enough to get the job done.
07:20 - Now that we've got the gears installed,
07:21 we are using this yellow dyed grease
07:23 to visually see the engagement
07:24 between the ring and the pinion gears.
07:26 - So right now we're just running the gears back and forth
07:29 in both directions to look at where the teeth are meshing.
07:34 Now right there, it looks like we have a good pattern.
07:39 - You want to see, spin the ring gear instead,
07:41 so we're right here, but I turn it this way,
07:43 you got more load on this pinion bearing,
07:45 so it's creating a better pattern.
07:47 - Got it.
07:48 - Drive side would be right here, the dark shadowed part.
07:51 - Yeah.
07:52 - And under load, it's gonna spread,
07:54 that dark pattern is gonna spread across the tube.
07:57 - Everything's good to go.
07:58 - Everything's good to go.
07:59 Get the axles and the C-clips in.
08:02 There's C-clips that go inside this differential,
08:04 so we can't put the cover on just yet.
08:07 And inside this opening, we'll pull a pin out here,
08:11 put the axles in, two C-clips,
08:14 pull the axles out a little bit, put the pin back in.
08:17 As far as the differential, it's set up and ready to go.
08:20 - It looks great, awesome.
08:21 - Good to go.
08:22 - Very cool.
08:23 All right, now that we've got the ring and pinion
08:24 all set up, we can go ahead and knock in new bearings
08:27 and seals for the axles.
08:28 We're gonna put on these Wilwood backing plates
08:30 and knock the new axles in.
08:32 (upbeat music)
08:37 (hammering)
08:39 So we're about to button this thing up,
08:46 and we're having some trouble knocking
08:47 this differential cross shaft in,
08:49 because it seems like the axes are protruding
08:51 a bit too far, and there's not space
08:53 for the cross shaft to go between them.
08:54 This is kind of like a manufacturing tolerance issue.
08:57 We got a bunch of different parts in here
08:58 from different manufacturers,
08:59 so we're just gonna throw them on the belt sander,
09:01 make a little room until this thing feels good
09:03 and goes in nice, but it's not too loose, right?
09:05 - Correct.
09:06 - All right.
09:06 (upbeat music)
09:09 I will finish tightening up these cover bolts.
09:15 It's filled up with fluid,
09:16 and I think we can take it from here.
09:18 If you're in our area, you can come see my man, Frank,
09:20 at South Bay Truck and Differential.
09:22 Thanks again, Frank.
09:23 It's been a pleasure.
09:24 - It's been a pleasure.
09:25 Thank you.
09:26 - Now that we've got this thing all together,
09:27 we're gonna lower the car down on top of the rear end.
09:30 We got everything lined up just right.
09:31 It should be pretty easy to bolt up.
09:32 You really careful anytime you're working
09:34 with coil springs.
09:35 They're pretty dangerous,
09:36 and it's really easy to kill yourself.
09:38 (upbeat music)
09:41 Come down and touch.
09:44 One more.
09:45 Great.
09:47 That's good.
09:50 All right, that's it for bolting in this rear end.
09:55 All I have to do now is connect the drive shaft
09:56 and put on these new Wilwood rear disc brakes,
09:59 and this thing will be ready to hit the track.
10:01 So the drive shaft we just had built for this Chevelle
10:03 is a 1310 series yoke.
10:05 Now, when we upgraded the rear end,
10:06 we put a 1330 series yoke on that.
10:09 So we're actually using this cool piece that Spicer makes,
10:11 part number 5134X.
10:13 It is a conversion yoke.
10:15 1310 on one side and 1330 on the other side.
10:17 So once I install this into the drive shaft,
10:19 it'll work with that upgraded rear end.
10:21 (upbeat music)
10:23 I didn't wanna go and put those old tire drum brakes back
10:32 on this rear end we just built.
10:34 So what we upgraded these Wilwood four piston brakes.
10:36 We're gonna talk brakes and suspension a ton more
10:38 in the upcoming episode.
10:40 So wait for that.
10:41 So since our old wheels and tires won't fit over
10:43 these new big brakes,
10:44 we're gonna take this opportunity to put on these cool
10:46 super sport inspired 17 by nine aluminum wheels
10:50 that OBG offers.
10:51 All right, we've got the rear end back in
10:53 with a new 373 gears and the LSD installed.
10:57 Now comes the fun part.
10:58 Take this car to the track and see what it can do.
11:00 (upbeat music)
11:03 (car engine roaring)
11:06 (car engine roaring)
11:10 (car engine roaring)
11:27 (car engine roaring)
11:30 All right, we're wrapping up here at the track.
11:41 The car feels awesome.
11:42 It ran a 1340 at 103 miles an hour on street tires.
11:46 There's definitely still some more left in it.
11:47 As you can see the rear end we put in it
11:49 and the LSD made a huge difference.
11:51 Even these numbers don't tell the whole story.
11:53 On the street, this thing feels way better.
11:55 Before when it had the 273 gears in it,
11:57 it was asleep on the street, asleep on the highway.
12:00 Now it feels alive.
12:01 It's really responsive.
12:02 It really picks right up.
12:03 That's it for this episode of Hot Rod Garage
12:05 presented by Lincoln Tech.
12:06 You can check us out on our Facebook page,
12:08 Hot Rod Garage Show,
12:09 or find me on Instagram at tangelo96.
12:12 Now stay tuned for a Q and A with Freiburger
12:14 and Finnegan from Roadkill.
12:16 (car engine roaring)
12:19 - So we're gonna mix it up this time.
12:21 - Okay.
12:22 - Four questions.
12:22 - Okay.
12:24 - Hot Rod Garage Tech Q and A.
12:25 You get to ask me two tech questions,
12:28 I get to ask you two tech questions.
12:31 - Oh really?
12:32 - You can start first.
12:33 - I don't have any time to prepare.
12:34 Okay, two tech questions.
12:36 What do I wanna know that only you would know?
12:41 - I don't think there's anything I know
12:42 that only I would know.
12:43 - What do you know that I want to know
12:47 that I don't know, that I think you know?
12:50 - Oh, there's plenty that I don't know.
12:51 - Or should I try to stump you right now?
12:54 - Let's go.
12:55 Okay, why are you afraid of diesels?
12:59 - That's a really good question.
13:01 You know, people tend to fear what they don't understand.
13:04 (laughing)
13:05 And it's strange.
13:06 - It involves demons and monsters, like not diesels.
13:09 - No, that is true.
13:10 I never got into 'em.
13:13 And I'm too lazy to learn about them.
13:18 I know they make crazy power and everything,
13:21 but I don't know.
13:23 I realize it's one of the lamest things I've got going.
13:26 I have no good excuse for that.
13:28 I'm just not interested enough,
13:29 and there's so much more to learn
13:32 about stuff I am interested in.
13:34 And I don't have that many brain cells left
13:36 to hold all that.
13:37 - I'm into diesels.
13:39 I wanna get down with diesels.
13:40 I am not into rolling coal, though.
13:42 No part of that appeals to me.
13:44 I know it's funny.
13:45 I've seen all the videos on the internet.
13:47 You know, do you smoke?
13:48 Not into it.
13:51 Watching somebody sit on the starting line
13:54 and wreck the Christmas tree and the beams
13:55 to the point where you don't get an E.T.
13:57 because you're rolling coal?
13:58 - Yeah. - Dumb.
13:59 - I know.
14:00 - All right, your turn.
14:02 - My turn to ask you a question.
14:04 I do not understand--
14:05 - If you don't turn around here, we get wet.
14:07 - This is pretty good.
14:09 I do not understand the different mixes of argon
14:14 that you use for the different types of welding.
14:16 - Oh, all right.
14:19 The why, I'll have a hard time explaining.
14:23 The what, I can explain.
14:24 So it's shielding gas, right?
14:27 So essentially, you're shielding the weld puddle
14:30 from impurities in the air.
14:31 So air is not pure, just water in it and all that.
14:34 So the shielding gas for metal inert gas welding,
14:37 MIG welding, that's a mixture of 75% argon, 25% CO2.
14:42 - Okay, yeah, for MIG.
14:43 - And the reason why TIG welding,
14:45 tungsten inert gas welding, requires pure argon?
14:49 I don't know, I just know it does.
14:50 - So you're useless to me.
14:52 - Two different bottles, Google it.
14:53 - Do special custom mixes, kind of like divers do
14:56 in order to--
14:57 - I think aerospace guys do, and you know, but--
15:00 - Other than that, not really?
15:02 - Yeah, I mean, the thing about welding,
15:03 especially TIG welding, is there's so many variables,
15:06 like the way you prep your tungsten, you know,
15:09 the angle, how much gas you're flowing,
15:12 the size of the cup, everything is a variable
15:14 that you can tweak to your own, you know, needs.
15:18 And I suppose you could tweak the gas mixture,
15:21 but trying to find somebody to do that for you,
15:24 a lot of places, when you go to get a bottle filled,
15:25 they don't even fill your bottle, they just exchange it.
15:27 - Right, they just exchange it, I know.
15:29 So are you ever gonna let me weld on "Roadkill"?
15:31 - Yeah, you weld all the time.
15:33 - Waiting for something you don't care about.
15:35 - You weld all the time.
15:36 - Okay, your turn.
15:37 - Something non-critical, all right, my turn.
15:39 Why didn't we run an intercooler on the Bonneville car?
15:42 I think that would've helped.
15:43 - Why didn't we run an intercooler on my, which motor?
15:47 I mean, I ran a 555.
15:48 - Vortec blown big block.
15:49 It's a trivical supercharger, blowing through a carb,
15:51 no intercooler.
15:53 - Because when we data log it,
15:56 the latent heat of vaporization out of the carburetor
15:59 drops 100 degrees out of the air across the carburetor.
16:03 So when your inlet air temperature before,
16:05 you know, inlet air temperature is 130,
16:10 it's 30 degrees in the manifold.
16:12 - That's good info, especially with my dog back there,
16:15 puking.
16:16 - You're dog barfing?
16:17 No, but I mean, that's an extreme example.
16:19 Typical air inlet temp's probably closer to,
16:23 you know, 170, something like that.
16:25 And so it's 70 degrees across the carburetor.
16:28 It drops 100 degrees when you're talking about that level.
16:30 It's not a fixed 100 degrees,
16:32 regardless of what the temperature is.
16:33 It obviously doesn't go below zero.
16:35 But an intercooler is also a restriction.
16:38 That's really the bottom line reason
16:39 is there's no room under the hood for anything like that.
16:43 And one year we did run an intercooler.
16:46 I put one of those big giant ProCharger ones
16:48 in the passenger seat and, you know,
16:50 ran the ice water through it and did all of that.
16:53 And it wasn't enough of a benefit to battle that again.
16:56 Okay, this is a little too romantic for me.
16:59 So I'm going to drive away while we're asking
17:02 the next question.
17:03 So let me go with, when you interviewed Warren Johnson,
17:07 tell me the thing that I was least likely to know
17:09 or comprehend from your discussion with Warren Johnson,
17:13 professor of Pro Stock.
17:14 That you could run a top fuel car
17:16 out of a phone booth with a credit card.
17:18 (laughing)
17:19 - I remember that one.
17:20 - That was my favorite quote from him.
17:22 - Yeah.
17:22 - I don't know.
17:25 The thing that always impressed me about Warren Johnson was
17:28 his analytical mind and the way he approached
17:32 problem solving is completely different than mine.
17:35 And I think it's just because I'm not an engineer.
17:37 I don't look at things the way he does.
17:41 And he did say he didn't want to quit driving,
17:45 but it did not make, that's a business for him.
17:51 Selling up the racetrack is a business.
17:53 And the moment he had to start funding it himself,
17:56 you don't see an author trying to qualify
17:59 all these races.
18:00 Most guys do think, "Oh, I love this.
18:03 "I'm doing this for the love."
18:04 And I'm sure he loved it, but I think he loved it more
18:08 when he went there on GM performances time.
18:11 - So that's a wrap on a somewhat disjointed experiment
18:16 on the new Hot Rod Garage tech Q&A.
18:20 And this has been our first Q&A with Wet Dog.
18:23 - Yeah, and Golf Cart.
18:24 - And swimming, I'd like to.
18:25 - So that's a wrap.
18:27 Make sure to follow us on social media,
18:28 all the normals, Facebook, Hot Rod Garage, et cetera.
18:32 Finnegan999 on Instagram, David Freiberger on Instagram.
18:35 We're out of here.
18:36 - Sorry for sucking.
18:38 (upbeat music)
18:42 (rock music)
18:44 (rock music)
18:47 (rock music)
18:49 (rock music)
18:52 (rock music)
18:54 (rock music)
18:56 (rock music)
18:59 (rock music)
19:01 (rock music)
19:04 (rock music)
19:06 (rock music)
19:08 (rock music)
19:11 - Bam!