![Dr. Downforce](/img/default-banner.jpg)
- Видео 16
- Просмотров 89 650
Dr. Downforce
Добавлен 7 фев 2014
C8 Corvette brake bleeding procedures
how to bleed C8 Corvette brakes what tools you need and what you need to know.
***Don't attempt to bleed or flush the brakes with out theses tools***
You will get a level 1 or level 2 brake system failure and will have to tow the car to dealer or someone with proper tooling to correct this issue.
tools I used :
J-2534 scan tool/Programmer or factory GDS GM tool
www.drewtech.com/products/cardaqm.html
link to purchase Gm software subscription www.acdelcotds.com/subscriptions#
brake pressure bleeder kit
www.amazon.com/Mityvac-MV6840-Pressure-Bleed-System/dp/B005MVBFM4/ref=sr_1_2?crid=O8DKW07TYA86&keywords=mighty%2Bvac%2Bmv6840&qid=1676845348&sprefix=mighty%2Bvac%2Bmv6840%2Caps%2C118&sr=8-2&ufe=app_d...
***Don't attempt to bleed or flush the brakes with out theses tools***
You will get a level 1 or level 2 brake system failure and will have to tow the car to dealer or someone with proper tooling to correct this issue.
tools I used :
J-2534 scan tool/Programmer or factory GDS GM tool
www.drewtech.com/products/cardaqm.html
link to purchase Gm software subscription www.acdelcotds.com/subscriptions#
brake pressure bleeder kit
www.amazon.com/Mityvac-MV6840-Pressure-Bleed-System/dp/B005MVBFM4/ref=sr_1_2?crid=O8DKW07TYA86&keywords=mighty%2Bvac%2Bmv6840&qid=1676845348&sprefix=mighty%2Bvac%2Bmv6840%2Caps%2C118&sr=8-2&ufe=app_d...
Просмотров: 2 389
Видео
1985 Spartan II
Просмотров 1,3 тыс.5 лет назад
This car has been sitting for 17 years. We performed a mechanical restoration of this vehicle. Here is a short history from the manufacture. In 1984 the Spartan Motor Company built the Spartan II in its factory based in California in San Marcos. It was handcrafted on a 1984 Nissan 300 ZX -2 2 chassis. All parts are Nissan & easy to maintain. It has a V6 overhead cam engine, with electronic fuel...
C7 Corvette Grand Sport at Circuit Of The Americas with Edge Addicts
Просмотров 3155 лет назад
Short Video of my buddy Mike driving at COTA with Edge Addicts. This was last minute drive out to watch so video is pretty short, I received a new laptop and Video editing software for Christmas so I figured I would try it out. Hope you guys like it :) I plan to start uploading some new videos soon ! So please like and Subscribe thanks for watching!
Auto Blip and Digital Gear Indicator review
Просмотров 9 тыс.6 лет назад
Digital Gear Indicator and Auto-Blip Review I track my 2013 Z07 optioned Z06 regularly and found it gets pretty busy on the track with traffic, watching flag stations, shifting gears, anticipating breaking points, etc. I was thinking to myself that a visual gear indicator and Rev match product is what i need to be more competitive. As you know today, most new sports cars have both the digital g...
Time Attack at Driveway Austin Motorsports track and Race School. 4 28 18
Просмотров 2286 лет назад
I attended Monthly Time Attack held at Driveway Austin Motorsports track and Race School. After my last Time Attack I realized it was time for new tires I had actually gotten slower. I was running Sport Cup2s and they had lost there track bite. Don't get me wrong Cup 2s are awesome tires they just got hard and wore out, So for this event I went all out and ran new set of Hoosier R7 which put me...
2016 Corvette Z06 Fasterproms Thermal Supercharger spacer install
Просмотров 4,7 тыс.6 лет назад
This is a short video of a Supercharger thermal spacer installation to reduce cylinder head heat transferred to the Supercharger. This kit will not solve all cooling system overheating issues but it will reduce thermal heat transfer. It works best with other cooling system upgrades. www.fasterpromsstore.com/collections/c7-z06/products/c7-z06-thermal-reduction-plates
2016 Z06 2Lz Supercharger Spacer and fluid changes Intro
Просмотров 2376 лет назад
2016 Corvette Z06 A8 2LZ 8,100k miles Intro to next video transmission service Differential service Supercharger spacer www.fasterpromsstore.com/collections/c7-z06/products/c7-z06-thermal-reduction-plates lowering 1/2 inch corner balancing track alignment
Part 2 2013 Corvette Z06 Valve upgrade final assembly
Просмотров 6 тыс.6 лет назад
Follow up Video of Reassembly of 2013 Corvette Z06 along with Comp cams rocker arm trunion Upgraded another problematic are of LS7
2013 Corvette Z06 13k miles valve guide upgrade to prevent Dropped valve
Просмотров 64 тыс.7 лет назад
I had a friend with 2010 23k Zr1 drop a valve and damaged his motor. Even with low miles on my Corvette I figured i would look into the infamous dropped valve issue. I found Katech and engineers at GM found the cylinder head manufacture that supplied the heads for Corvette did not Machine the guides concentric to the guides. GM wiggle test spec .003 my heads were .09 to 010 . to prevent damage ...
COTA Best lap 2:34 2013 Corvette Z07 optioned Z06
Просмотров 5068 лет назад
March 5th Track Day Best lap 2.34 with traffic using Harrys Lap timer app on Samsung Tablet along with external Sky Pro160 GPS for more accurate lap times and OBDLink MX for engine data
Circuit Of The Americas Sept 5th 2nd session stock 2013 Corvette Z07 optioned Z06
Просмотров 2218 лет назад
Did well throughout only got passed by more powerful Vipers and GT3 Porsche on straights could catch them in turns just could'nt keep up with them on the straights with stock Corvette. GM did an exceptional job with balance and handling on the last of C6 Z06's
Circuit of the Americas Sept 5th 3rd session Stock 2013 Corvette Z07 optioned Z06
Просмотров 968 лет назад
Circuit of the Americas Sept 5th 3rd session Stock 2013 Corvette Z07 optioned Z06
Now I see why so many used Corvettes are for sale and they are still trying to get 50 and $60,000 for those used corvettes
Now I see why so many used Corvettes are for sale and they are still trying to get 50 and $60,000 for those used corvettes
To clear the brake codes, push the start button without stepping on the brake petal to power up the car. Do not start the engine. Then press firmly down on the brake pedal for 20-30 seconds. You will hear clicking noise during this process. When the clicking stops you can start the car and the brakes will be reset , the codes cleared and warning lights gone.
Did the thermal plates and blanket help much? For the price, would you say its worth it?
This is cool wish someone would make something like this for cable driven
Lol how you seal between zylinderheads and the plate it's really strange
My GM service team changed the fluid and after a track day went to limp mode. They changed the entire brake booster system and programmed it and 2 days later same problem. Now GM is saying it’s because I have girodisc rotors and carbotech pads and I gave to put OEM parts back on. What have they done wrong?
I bought a 1993 Spartan to with 32,000 original miles I love it everything works a year and a half later I had to put a water pump. Hi Mechanic got one online put it in works awesome wouldn’t sell it for nothing only 350 were made it is definitely a collector car and you can name your own price.
What is your shop contact info?????
This vid just made a lot of Z51 brake swaps WORTHLESS.... THANKS for the heads up.
I’m really thinking about buying a c6z 2008-2013. I’m not an expert on motors, can anyone tell me what all exactly I need to buy to replace in the engine to prevent a valve from dropping. Also what’s the price estimate on how much it’ll be to upgrade everything?
There should have been a class action lawsuit against GM for this failure. There isn't any reason the customer should have to pick up the bill on this!
Great video man. I am sorry, but I played the Benny Hill theme on the quiet parts of the engine tear down. lol
so which software on tds do you need? tech2 win or light duty global diag (gds2)?
Gm has a history of not righting wrongs and this is no different. They should've recalled these values guides under warranty.
Hi I just want to bring my c8 to change brake fluid what's the address or phone number I'm an dallas Fort Worth
Thank you for this informative video, and you are correct that there is an information vacuum about this online. I was going to swap out my calipers (from black to yellow) on my 23 C8 using the usual brake bleeding procedures. You have saved me from making the serious mistake of trying to do this without the exact tools.
This video will save a lot of tow jobs to the dealership. If you don't have the proper equipment don't even try it.
Does Texas speed give you any guarantee that if your engine blows in the same manner with these new valve guides
Must be pretty embarrassing putting your name on it and that’s gonna blow
I just can’t take anyone with a Tesla jacket on seriously 🤷🏼♂️
So even fully built this zo6 is still going to have valve issues ?
Where did u learn to do this?
2022 update in the future? Still have the 13?
So zr1s also have this issue?
You shouldn't be putting out videos on technical issues such as clearances you haven't got a clue.
What will cause a valve to drop?
It’s just an issue with these cars because GM put hollow valve stems and I’m not sure what else people replace to fix it but replace the head completely and go with a heads cam package for more power and reliability I’m looking into getting a C6Z and I’m tryna see what people do to fix it beside the heads since that’s $3.5-5K
Your the only person I’ve seen has a z07 velocity yellow corvette. I would love to see a full video on the z06 in detail
I have a question for you, currently trying to install these on my 2015 Z06. At 6:12 into your video it appears you place some sort of black "cap" on the opening there. Can you elaborate what that is and if it's 100% required? I bought my plates from someone and all they came with was the bolts and plates, not sure if this was missing or needed separately. Appreciate your feedback!
Did you say at the start of the video that the person who dropped a valve was a c6 zr1 ? I thought it was a zo6 issue ?
GM tried to save too much money again.
Why Does everyone Keep saying Dropping A Valve? These Valves Are Breaking Or separating , Dropping Involves The Keepers Or Retainers Failing Or Coming Loose And the valve Falling Into the Motor. That Is Not What's happening. The Valve Stem Is breaking. Big Difference, At Least This guy Is saying Why and what. Thank you For That.
If the valve drops into the cylinder, the piston and head don't much care HOW it got there. All that matters is that it did. Period.
…because the VALVE DROPS into the cylinder. That’s called “dropping a valve”. Semantics.
@@guardpass did you not read what I wrote? It's not semantics there is a huge difference. non professionals say "dropped a valve" because they heard it somewhere and it sounds like valve in cylinder , but they don't really know what it means. I explained the difference, you should read it then maybe you would understand it's not semantics.
Probably more like sucked it in and kissed! 🎉.
Thank you for not adding music👍👍👍👍👍👍👍👍👍you don’t check the clearance that way. Take springs off remove seals clean oil off then you can check.
Im retired GM service tech. GM cant get the centerline of the seat/guided the same? The valve head breaks off? Junk valves? Worn guides? Are they worn in an oval shape or are the worn round? Im gona get some guff over this...bring it....worn guides are from junk springs...springs where the top and the bottom are not parallel. It has nothing to do with the tip of the roller rocker not being in the center of the valve stem or oem stamped steel rockers...Big block chev has valves that are angled in 2 directions. Have you ever heard anybody say they needed roller rockers to keep the guides from wearing out....i have messed with a couple sets of heads, this set was on a L88 427 i bought....ran it in my boat and it ran fine ruclips.net/video/11eXlFkZekM/видео.html Nothing more than bad springs.....Easy to prove, get a head with bad guides...put the spring on the valve, put the rocker are on and figure out how to use the pushrod to get the valve off the seat. Good spring, valve will move around with your pinky finger, bad spring and it will be pushed to one side, really bad spring and you will need a tool to move it. Ti exhaust valve raise redline? That aint gona happen, ignition has a rev limiter, the intake valve is bigger/heavier than exhaust, it will be the first to float....and round up a dyno sheet for your motor....see where peak hp is? You need to shist a few hundred rpm past that...or less..short shif is always best
Did you also measure 90 deg from the one shown in video? I would think that tangent in line with the rocker shaft would show more wear since maybe the rocker is pushing out slightly (towards outside of car) while also pushing down. (The direction shown at 10:15)
I agree one hundred percent. Looking at the wear pattern on my rockers it was obvious that there is side loading on the valve stem. I solved that issue with Crower Shaft Rockers, big bucks for a street car, but big peace of mind.
You are fixing a year that didn't have the problem. You range js acceptable and you did t measure properly. Should have had the springs removed. But hell, nothing wrong with a nice ahead job.
EVERY year LS7 has had the failure. Don't buy into GM's CYA FUD! I'm yet to see a stock LS7 that didn't have some moderate level of valve play. FWIW, I've also seen it on some "fixed" heads as well, but to a far lesser extent.
You said you had nine to ten thousands on the intake exhaust but you never or I didn't catch, what the measurement was supposed to be. also, even with that side play I don't understand why the retainer didn't hold the valve in place...? In order for the valve to drop either have to break it or the retainer has to come loose. Which is happening?
The valve head snaps off, typically on the hollow stem exhaust valve.
John, nice presentation. A couple of thoughts. First, do you have a "slow-mo" version of the head removal. It was difficult to pause the video fast enough to see what you were doing, so definitely slow motion would be great. Second, having watched several head jobs that check the guides, I noticed you measured at the top of the stem and not at the guide itself. I'm really not sure who is right about this. Where did you get your information to test the distance at the top of the stem and not at the guide. Thanks John for the video!
This is why I own an nsx r and not a corvette, Honda would have done a recall if they had this issue in their cars! GM is a terrible and greedy company
What year was your buddies ZR1?
2010 ZR1
Nice info on the auto-blip. As for the TPMS sensors, if possible get a different set of wheels/tires without TPMS for track days. Those things losing air under severe stress is fairly common. It happened to me with my 2012 Mustang GT. I got lucky, a local tire shop happened to be open and they replaced it for me.
Awesome video. Yes, some of it may be a good advertisement for Texas Speed, but so be it. I've been around this stuff a long time. I was a Tool & Diemaker for 40+ years. If I do say so myself, I am very impressed with Texas Speed. I knew they did good work, but didn't know they ground their own cams. I see cam grinder is a Landis. I ran a Landis O.D. grinder for almost 20 years that accepted pieces up to 8 feet long. They were based in Pa. at one time. Don't know where they are now, maybe still Pa.? Anyway, I see Haas machinery also. All really good equipment. Looks like you went to the right place. These LS7s are great motors, but ticking time bombs until heads are redone.....
Unless that insulation blanket was foil faced on both sides, you put it on upside down. The foil needs no face down towards the heat source. did you see any results in blower/IAT2 temps? Would you do it again?
The heat source is the blower lol.
Hi bud, does the LS7 engine require lash caps and if so on which rocker do you install the lash caps on? All the rockers or just the intake side or exhaust side?????
Intakes, over the Ti valves.
would it work on a 2001 mustang cobra? im very interested!! -p3t3r
It will NOT work if you have a physical throttle cable to throttle body. If you have fly by wire it should work
What's more expensive, an extended warranty or this?
I just bought a 21k mile 2010 z06. I got a 5yr 60k powertrain warranty for about $2k. Third party.
But I'm going to have the heads fixed anyway.
@@bsfunk44 Right on! Thanks
BSfunk44 what third company did you use?
Great video but I'm Not gonna lie , never thought I'd see a 7.0 liter LS7 Vette owner who is wearing a Tesla jacket. What's next you're going to tell your car doesn't have any cats? ;)
Excellent information Thanks
LS engines are nice, but costly! I guess that's why I'm still using a big block Chevy. 🤣
How did it run??
Did you need to modify the hood since it sits higher now?
No it was maybe 1/2 taller